2143 lines
70 KiB
Text
2143 lines
70 KiB
Text
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########################################################
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# routines to set up, transform and manage local weather
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# Thorsten Renk, May 2010
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# thermal model by Patrice Poly, April 2010
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########################################################
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# function purpose
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#
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# calc_geo to compute the latitude to meter conversion
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# calc_d_sq to compute a distance square in local Cartesian approximation
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# volume_effect_loop to check if the aircraft has entered an effect volume
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# interpolation_loop to continuously interpolate weather parameters between stations
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# thermal_lift _loop to manage the detailed thermal lift model
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# thermal_lift_start to start the detailed thermal model
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# effect_volume_start to manage parameters when an effect volume is entered
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# effect_volume_stop to manage parameters when an effect volume is left
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# setVisibility to set the visibility to a given value
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# setRain to set rain to a given value
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# setSnow to set snow to a given value
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# setTemperature to set temperature to a given value
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# setPressure to set pressure to a given value
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# setDewpoint to set the dewpoint to a given value
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# setLift to set thermal lift to a given value - obsolete
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# ts_factor (helper function for thermal lift model)
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# tl_factor (helper function for thermal lift model)
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# calcLift_max to calculate the maximal available thermal lift for given altitude
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# calcLift to calculate the thermal lift at aircraft position
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# randomize_pos to randomize the position of clouds placed in a streak call
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# select_cloud_model to select a path to the cloud model, given the cloud type and subtype
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# create_cloud to place a single cloud into the scenery
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# create_cloud_vec to place a single cloud into an array to be written later
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# clear_all to remove all clouds, effect volumes and weather stations and stop loops
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# create_cumosys wrapper to place a convective cloud system based on terrain coverage
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# cumulus_loop to place 25 Cumulus clouds each frame
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# create_cumulus to place a convective cloud system based on terrain coverage
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# terrain_presampling to get information about terrain elevation
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# create_rise_clouds to create a barrier cloud system
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# create_streak to create a cloud streak
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# create_layer to create a cloud layer with optional precipitation
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# cloud_placement_loop to place clouds from a storage array into the scenery
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# create_effect_volume to create an effect volume
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# effect_placement_loop to place effect volumes from a storage array
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# create_effect_volume_vec to create effect volumes in a storage array
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# set_weather_station to specify a weather station for interpolation
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# streak_wrapper wrapper to execute streak from menu
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# convection wrapper wrapper to execute convective clouds from menu
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# barrier wrapper wrapper to execute barrier clouds from menu
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# single_cloud_wrapper wrapper to create single cloud from menu
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# layer wrapper wrapper to create layer from menu
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# set_tile to call a weather tile creation from menu
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# startup to prepare the package at startup
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###################################
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# geospatial helper functions
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###################################
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var calc_geo = func(clat) {
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lon_to_m = math.cos(clat*math.pi/180.0) * lat_to_m;
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m_to_lon = 1.0/lon_to_m;
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}
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var calc_d_sq = func (lat1, lon1, lat2, lon2) {
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var x = (lat1 - lat2) * lat_to_m;
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var y = (lon1 - lon2) * lon_to_m;
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return (x*x + y*y);
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}
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###################################
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# effect volume management loop
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###################################
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var effect_volume_loop = func (index, n_active) {
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var n = 25;
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var evNode = props.globals.getNode("local-weather/effect-volumes", 1).getChildren("effect-volume");
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var esize = size(evNode);
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var viewpos = geo.aircraft_position();
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var active_counter = n_active;
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var i_max = index + 25;
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if (i_max > esize) {i_max = esize;}
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for (var i = index; i < i_max; i = i+1)
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{
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e = evNode[i];
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var flag = 0; #default assumption is that we're not in the volume
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var ealt_min = e.getNode("position/min-altitude-ft").getValue() * ft_to_m;
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var ealt_max = e.getNode("position/max-altitude-ft").getValue() * ft_to_m;
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if ((viewpos.alt() > ealt_min) and (viewpos.alt() < ealt_max)) # we are in the correct alt range
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{
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# so we load geometry next
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var geometry = e.getNode("geometry").getValue();
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var elat = e.getNode("position/latitude-deg").getValue();
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var elon = e.getNode("position/longitude-deg").getValue();
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var rx = e.getNode("volume/size-x").getValue();
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if (geometry == 1) # we have a cylinder
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{
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var d_sq = calc_d_sq(viewpos.lat(), viewpos.lon(), elat, elon);
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if (d_sq < (rx*rx)) {flag =1;}
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}
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else if (geometry == 2) # we have an elliptic shape
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{
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# get orientation
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var ry = e.getNode("volume/size-y").getValue();
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var phi = e.getNode("volume/orientation-deg").getValue();
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phi = phi * math.pi/180.0;
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# first get unrotated coordinates
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var xx = (viewpos.lon() - elon) * lon_to_m;
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var yy = (viewpos.lat() - elat) * lat_to_m;
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# then rotate to align with the shape
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var x = xx * math.cos(phi) - yy * math.sin(phi);
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var y = yy * math.cos(phi) + xx * math.sin(phi);
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# then check elliptic condition
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if ((x*x)/(rx*rx) + (y*y)/(ry*ry) <1) {flag = 1;}
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}
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else if (geometry == 3) # we have a rectangular shape
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{
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# get orientation
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var ry = e.getNode("volume/size-y").getValue();
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var phi = e.getNode("volume/orientation-deg").getValue();
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phi = phi * math.pi/180.0;
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# first get unrotated coordinates
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var xx = (viewpos.lon() - elon) * lon_to_m;
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var yy = (viewpos.lat() - elat) * lat_to_m;
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# then rotate to align with the shape
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var x = xx * math.cos(phi) - yy * math.sin(phi);
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var y = yy * math.cos(phi) + xx * math.sin(phi);
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# then check rectangle condition
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if ((x>-rx) and (x<rx) and (y>-ry) and (y<ry)) {flag = 1;}
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}
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} # end if altitude
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# if flag ==1 at this point, we are inside the effect volume
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# but we only need to take action on entering and leaving, so we check also active_flag
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#if (flag==1) {print("Inside volume");}
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var active_flag = e.getNode("active-flag").getValue(); # see if the node was active previously
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if ((flag==1) and (active_flag ==0)) # we just entered the node
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{
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#print("Entered volume");
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e.getNode("active-flag").setValue(1);
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effect_volume_start(e);
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}
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else if ((flag==0) and (active_flag ==1)) # we left an active node
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{
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#print("Left volume!");
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e.getNode("active-flag").setValue(0);
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effect_volume_stop(e);
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}
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if (flag==1) {active_counter = active_counter + 1;} # we still count the active volumes
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} # end foreach
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# at this point, all active effect counters should have been set to zero if we're outside all volumes
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# however there seem to be rare configurations of overlapping volumes for which this doesn't happen
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# therefore we zero them for redundancy here so that the interpolation loop can take over
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# and set the properties correctly for outside
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#print(i);
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if (i == esize) # we check the number of actives and reset all counters
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{
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if (active_counter == 0)
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{
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var vNode = props.globals.getNode("local-weather/effect-volumes", 1);
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vNode.getChild("number-active-vis").setValue(0);
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vNode.getChild("number-active-snow").setValue(0);
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vNode.getChild("number-active-rain").setValue(0);
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vNode.getChild("number-active-lift").setValue(0);
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}
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#print("n_active: ", active_counter);
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active_counter = 0; i = 0;
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}
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# and we repeat the loop as long as the control flag is set
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#if (getprop(lw~"effect-loop-flag") ==1) {settimer(effect_volume_loop, 1.0);}
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#if (getprop(lw~"effect-loop-flag") ==1) {settimer(effect_volume_loop, 0);}
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if (getprop(lw~"effect-loop-flag") ==1) {settimer( func {effect_volume_loop(i, active_counter); },0);}
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}
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###################################
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# interpolation management loop
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###################################
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var interpolation_loop = func {
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var iNode = props.globals.getNode(lw~"interpolation", 1);
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var cNode = props.globals.getNode(lw~"current", 1);
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var stNode = iNode.getChildren("station");
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var viewpos = geo.aircraft_position();
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var sum_vis = 0.0;
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var sum_T = 0.0;
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var sum_p = 0.0;
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var sum_D = 0.0;
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var sum_norm = 0.0;
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# get an inverse distance weighted average from all defined weather stations
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foreach (var s; stNode) {
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var slat = s.getNode("latitude-deg").getValue();
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var slon = s.getNode("longitude-deg").getValue();
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var stpos = geo.Coord.new();
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stpos.set_latlon(slat,slon,1000.0);
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var d = viewpos.distance_to(stpos);
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if (d <100.0) {d = 100.0;} # to prevent singularity at zero
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sum_norm = sum_norm + 1./d;
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sum_vis = sum_vis + (s.getNode("visibility-m").getValue()/d);
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sum_T = sum_T + (s.getNode("temperature-degc").getValue()/d);
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sum_D = sum_D + (s.getNode("dewpoint-degc").getValue()/d);
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sum_p = sum_p + (s.getNode("pressure-sea-level-inhg").getValue()/d);
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# automatically delete stations out of range
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# take care not to unload if weird values appear for a moment
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if ((d > 80000.0) and (d<100000.0)) {s.remove();}
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}
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var vis = sum_vis/sum_norm;
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var p = sum_p/sum_norm;
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var D = sum_D/sum_norm;
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var T = sum_T/sum_norm;
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# a simple altitude model for visibility - increase it with increasing altitude
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vis = vis + 0.3 * getprop("position/altitude-ft");
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if (vis > 0.0) {iNode.getNode("visibility-m",1).setValue(vis);} # a redundancy check
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iNode.getNode("temperature-degc",1).setValue(T);
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iNode.getNode("dewpoint-degc",1).setValue(D);
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if (p>0.0) {iNode.getNode("pressure-sea-level-inhg",1).setValue(p);} # a redundancy check
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# now check if an effect volume writes the property and set only if not
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flag = props.globals.getNode("local-weather/effect-volumes/number-active-vis").getValue();
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if ((flag ==0) and (vis > 0.0))
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{
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cNode.getNode("visibility-m").setValue(vis);
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setVisibility(vis);
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}
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flag = props.globals.getNode("local-weather/effect-volumes/number-active-lift").getValue();
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if (flag ==0)
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{
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cNode.getNode("thermal-lift").setValue(0.0);
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}
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# no need to check for these, as they are not modelled in effect volumes
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cNode.getNode("temperature-degc",1).setValue(T);
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setTemperature(T);
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cNode.getNode("dewpoint-degc",1).setValue(D);
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setDewpoint(D);
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if (p>0.0) {cNode.getNode("pressure-sea-level-inhg",1).setValue(p); setPressure(p);}
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if (getprop(lw~"interpolation-loop-flag") ==1) {settimer(interpolation_loop, 3.0);}
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}
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###################################
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# thermal lift loop
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###################################
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var thermal_lift_loop = func {
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var cNode = props.globals.getNode(lw~"current", 1);
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var lNode = props.globals.getNode(lw~"lift",1);
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var apos = geo.aircraft_position();
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var tlat = lNode.getNode("latitude-deg").getValue();
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var tlon = lNode.getNode("longitude-deg").getValue();
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var tpos = geo.Coord.new();
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tpos.set_latlon(tlat,tlon,0.0);
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var d = apos.distance_to(tpos);
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var alt = getprop("position/altitude-ft");
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var R = lNode.getNode("radius").getValue();
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var height = lNode.getNode("height").getValue();
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var cn = lNode.getNode("cn").getValue();
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var sh = lNode.getNode("sh").getValue();
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var max_lift = lNode.getNode("max_lift").getValue();
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var f_lift_radius = lNode.getNode("f_lift_radius").getValue();
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# print(d," ", alt, " ", R, " ", height, " ", cn, " ", sh," ", max_lift," ", f_lift_radius, " ",0.0);
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var lift = calcLift(d, alt, R, height, cn, sh, max_lift, f_lift_radius, 0.0);
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# print(lift);
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cNode.getChild("thermal-lift").setValue(lift);
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if (getprop(lw~"lift-loop-flag") ==1) {settimer(thermal_lift_loop, 0);}
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}
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###################################
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# thermal lift loop startup
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###################################
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var thermal_lift_start = func (ev) {
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# copy the properties from effect volume to the lift folder
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var lNode = props.globals.getNode(lw~"lift",1);
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lNode.getNode("radius",1).setValue(ev.getNode("effects/radius").getValue());
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lNode.getNode("height",1).setValue(ev.getNode("effects/height").getValue());
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lNode.getNode("cn",1).setValue(ev.getNode("effects/cn").getValue());
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lNode.getNode("sh",1).setValue(ev.getNode("effects/sh").getValue());
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lNode.getNode("max_lift",1).setValue(ev.getNode("effects/max_lift").getValue());
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lNode.getNode("f_lift_radius",1).setValue(ev.getNode("effects/f_lift_radius").getValue());
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lNode.getNode("latitude-deg",1).setValue(ev.getNode("position/latitude-deg").getValue());
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lNode.getNode("longitude-deg",1).setValue(ev.getNode("position/longitude-deg").getValue());
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# and start the lift loop, unless another one is already running
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# so we block overlapping calls
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if (getprop(lw~"lift-loop-flag") == 0)
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{setprop(lw~"lift-loop-flag",1); thermal_lift_loop();}
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}
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###################################
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# thermal lift loop stop
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###################################
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var thermal_lift_stop = func {
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setprop(lw~"lift-loop-flag",0);
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setprop(lw~"current/thermal-lift",0.0);
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}
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####################################
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# action taken when in effect volume
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####################################
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var effect_volume_start = func (ev) {
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var cNode = props.globals.getNode(lw~"current");
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if (ev.getNode("effects/visibility-flag", 1).getValue()==1)
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{
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# first store the current setting in case we need to restore on leaving
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var vis = ev.getNode("effects/visibility-m").getValue();
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ev.getNode("restore/visibility-m",1).setValue(cNode.getNode("visibility-m").getValue());
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# then set the new value in current and execute change
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cNode.getNode("visibility-m").setValue(vis);
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setVisibility(vis);
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# then count the number of active volumes on entry (we need that to determine
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# what to do on exit)
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ev.getNode("restore/number-entry-vis",1).setValue(getprop(lw~"effect-volumes/number-active-vis"));
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# and add to the counter
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setprop(lw~"effect-volumes/number-active-vis",getprop(lw~"effect-volumes/number-active-vis")+1);
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}
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if (ev.getNode("effects/rain-flag", 1).getValue()==1)
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{
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var rain = ev.getNode("effects/rain-norm").getValue();
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ev.getNode("restore/rain-norm",1).setValue(cNode.getNode("rain-norm").getValue());
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cNode.getNode("rain-norm").setValue(rain);
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setRain(rain);
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ev.getNode("restore/number-entry-rain",1).setValue(getprop(lw~"effect-volumes/number-active-rain"));
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setprop(lw~"effect-volumes/number-active-rain",getprop(lw~"effect-volumes/number-active-rain")+1);
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}
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if (ev.getNode("effects/snow-flag", 1).getValue()==1)
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{
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var snow = ev.getNode("effects/snow-norm").getValue();
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ev.getNode("restore/snow-norm",1).setValue(cNode.getNode("snow-norm").getValue());
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cNode.getNode("snow-norm").setValue(snow);
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setSnow(snow);
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ev.getNode("restore/number-entry-snow",1).setValue(getprop(lw~"effect-volumes/number-active-snow"));
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setprop(lw~"effect-volumes/number-active-snow",getprop(lw~"effect-volumes/number-active-snow")+1);
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}
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if (ev.getNode("effects/thermal-lift-flag", 1).getValue()==1)
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{
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var lift = ev.getNode("effects/thermal-lift").getValue();
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ev.getNode("restore/thermal-lift",1).setValue(cNode.getNode("thermal-lift").getValue());
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cNode.getNode("thermal-lift").setValue(lift);
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#setLift(ev.getNode("position/latitude-deg").getValue(),ev.getNode("position/longitude-deg").getValue(),1);
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ev.getNode("restore/number-entry-lift",1).setValue(getprop(lw~"effect-volumes/number-active-lift"));
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setprop(lw~"effect-volumes/number-active-lift",getprop(lw~"effect-volumes/number-active-lift")+1);
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}
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else if (ev.getNode("effects/thermal-lift-flag", 1).getValue()==2) # thermal by function
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{
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ev.getNode("restore/thermal-lift",1).setValue(cNode.getNode("thermal-lift").getValue());
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ev.getNode("restore/number-entry-lift",1).setValue(getprop(lw~"effect-volumes/number-active-lift"));
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setprop(lw~"effect-volumes/number-active-lift",getprop(lw~"effect-volumes/number-active-lift")+1);
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thermal_lift_start(ev);
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}
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}
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var effect_volume_stop = func (ev) {
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var cNode = props.globals.getNode(lw~"current");
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if (ev.getNode("effects/visibility-flag", 1).getValue()==1)
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{
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var n_active = getprop(lw~"effect-volumes/number-active-vis");
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var n_entry = ev.getNode("restore/number-entry-vis").getValue();
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# if no other nodes affecting property are active, restore to outside
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# else restore settings as they have been when entering the volume when the number
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# of active volumes is the same as on entry (i.e. volumes are nested), otherwise
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# leave property at current because new definitions are already active and should not
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# be cancelled
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if (n_active ==1){var vis = props.globals.getNode(lw~"interpolation/visibility-m").getValue();}
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else if ((n_active -1) == n_entry) {var vis = ev.getNode("restore/visibility-m").getValue();}
|
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else {var vis = cNode.getNode("visibility-m").getValue();}
|
|
cNode.getNode("visibility-m").setValue(vis);
|
|
setVisibility(vis);
|
|
|
|
# and subtract from the counter
|
|
setprop(lw~"effect-volumes/number-active-vis",getprop(lw~"effect-volumes/number-active-vis")-1);
|
|
}
|
|
|
|
if (ev.getNode("effects/rain-flag", 1).getValue()==1)
|
|
{
|
|
var n_active = getprop(lw~"effect-volumes/number-active-rain");
|
|
var n_entry = ev.getNode("restore/number-entry-rain").getValue();
|
|
if (n_active ==1){var rain = props.globals.getNode(lw~"interpolation/rain-norm").getValue();}
|
|
else if ((n_active -1) == n_entry) {var rain = ev.getNode("restore/rain-norm").getValue();}
|
|
else {var rain = cNode.getNode("rain-norm").getValue();}
|
|
cNode.getNode("rain-norm").setValue(rain);
|
|
setRain(rain);
|
|
setprop(lw~"effect-volumes/number-active-rain",getprop(lw~"effect-volumes/number-active-rain")-1);
|
|
}
|
|
|
|
if (ev.getNode("effects/snow-flag", 1).getValue()==1)
|
|
{
|
|
var n_active = getprop(lw~"effect-volumes/number-active-snow");
|
|
var n_entry = ev.getNode("restore/number-entry-snow").getValue();
|
|
if (n_active ==1){var snow = props.globals.getNode(lw~"interpolation/snow-norm").getValue();}
|
|
else if ((n_active -1) == n_entry) {var snow = ev.getNode("restore/snow-norm").getValue();}
|
|
else {var snow = cNode.getNode("snow-norm").getValue();}
|
|
cNode.getNode("snow-norm").setValue(snow);
|
|
setSnow(snow);
|
|
setprop(lw~"effect-volumes/number-active-snow",getprop(lw~"effect-volumes/number-active-snow")-1);
|
|
}
|
|
|
|
if (ev.getNode("effects/thermal-lift-flag", 1).getValue()==1)
|
|
{
|
|
var n_active = getprop(lw~"effect-volumes/number-active-lift");
|
|
var n_entry = ev.getNode("restore/number-entry-lift").getValue();
|
|
if (n_active ==1){var lift = props.globals.getNode(lw~"interpolation/thermal-lift").getValue();}
|
|
else if ((n_active -1) == n_entry) {var lift = ev.getNode("restore/thermal-lift").getValue();}
|
|
else {var lift = cNode.getNode("thermal-lift").getValue();}
|
|
cNode.getNode("thermal-lift").setValue(lift);
|
|
# some cheat code
|
|
# setLift(ev.getNode("position/latitude-deg").getValue(),ev.getNode("position/longitude-deg").getValue(),0);
|
|
|
|
setprop(lw~"effect-volumes/number-active-lift",getprop(lw~"effect-volumes/number-active-lift")-1);
|
|
}
|
|
else if (ev.getNode("effects/thermal-lift-flag", 1).getValue()==2) # thermal by function
|
|
{
|
|
thermal_lift_stop();
|
|
setprop(lw~"effect-volumes/number-active-lift",getprop(lw~"effect-volumes/number-active-lift")-1);
|
|
}
|
|
|
|
}
|
|
|
|
####################################
|
|
# set visibility to given value
|
|
####################################
|
|
|
|
var setVisibility = func (vis) {
|
|
|
|
# this is a rather dirty workaround till a better solution becomes available
|
|
# essentially we update all entries in config and reinit environment
|
|
|
|
var entries_aloft = props.globals.getNode("environment/config/aloft", 1).getChildren("entry");
|
|
foreach (var e; entries_aloft) {
|
|
e.getNode("visibility-m",1).setValue(vis);
|
|
}
|
|
|
|
var entries_boundary = props.globals.getNode("environment/config/boundary", 1).getChildren("entry");
|
|
foreach (var e; entries_boundary) {
|
|
e.getNode("visibility-m",1).setValue(vis);
|
|
}
|
|
fgcommand("reinit", props.Node.new({subsystem:"environment"}));
|
|
|
|
}
|
|
|
|
####################################
|
|
# set rain to given value
|
|
####################################
|
|
|
|
var setRain = func (rain) {
|
|
|
|
# setting the lowest cloud layer to 30.000 ft is a workaround
|
|
# as rain is only created below that layer in default
|
|
|
|
setprop("environment/clouds/layer[0]/elevation-ft", 30000.0);
|
|
setprop("environment/metar/rain-norm",rain);
|
|
|
|
}
|
|
|
|
####################################
|
|
# set snow to given value
|
|
####################################
|
|
|
|
var setSnow = func (snow) {
|
|
|
|
# setting the lowest cloud layer to 30.000 ft is a workaround
|
|
# as snow is only created below that layer in default
|
|
|
|
setprop("environment/clouds/layer[0]/elevation-ft", 30000.0);
|
|
setprop("environment/metar/snow-norm",snow);
|
|
}
|
|
|
|
####################################
|
|
# set temperature to given value
|
|
####################################
|
|
|
|
var setTemperature = func (T) {
|
|
|
|
# this is a rather dirty workaround till a better solution becomes available
|
|
# essentially we update the entry in config and reinit environment
|
|
|
|
setprop(ec~"boundary/entry[0]/temperature-degc",T);
|
|
fgcommand("reinit", props.Node.new({subsystem:"environment"}));
|
|
}
|
|
|
|
####################################
|
|
# set pressure to given value
|
|
####################################
|
|
|
|
var setPressure = func (p) {
|
|
|
|
# this is a rather dirty workaround till a better solution becomes available
|
|
# essentially we update the entry in config and reinit environment
|
|
|
|
setprop(ec~"boundary/entry[0]/pressure-sea-level-inhg",p);
|
|
setprop(ec~"aloft/entry[0]/pressure-sea-level-inhg",p);
|
|
fgcommand("reinit", props.Node.new({subsystem:"environment"}));
|
|
}
|
|
|
|
####################################
|
|
# set dewpoint to given value
|
|
####################################
|
|
|
|
var setDewpoint = func (D) {
|
|
|
|
# this is a rather dirty workaround till a better solution becomes available
|
|
# essentially we update the entry in config and reinit environment
|
|
|
|
setprop(ec~"boundary/entry[0]/dewpoint-degc",D);
|
|
fgcommand("reinit", props.Node.new({subsystem:"environment"}));
|
|
}
|
|
|
|
####################################
|
|
# set thermal lift to given value
|
|
####################################
|
|
|
|
var setLift = func (lat, lon, flag) {
|
|
|
|
# this is a cheat - if you have an AI thermal present, this sets its coordinates to the
|
|
# current position
|
|
|
|
if (flag==1)
|
|
{
|
|
setprop("ai/models/thermal/position/latitude-deg",lat);
|
|
setprop("ai/models/thermal/position/longitude-deg",lon);
|
|
}
|
|
else
|
|
{
|
|
setprop("ai/models/thermal/position/latitude-deg",0.1);
|
|
setprop("ai/models/thermal/position/longitude-deg",0.1);
|
|
|
|
}
|
|
|
|
#setprop("environment/thermal-lift",L);
|
|
}
|
|
|
|
#########################################
|
|
# compute thermal lift in detailed model
|
|
#########################################
|
|
|
|
var ts_factor = func (t, alt, height) {
|
|
|
|
# no time dependence modelled yet
|
|
return 1.0;
|
|
|
|
|
|
var t_a = t - (alt/height) * t1 -t1;
|
|
|
|
if (t_a<0) {return 0.0;}
|
|
else if (t_a<t1) {return 0.5 + 0.5 * math.cos((1.0-t_a/t1)* math.pi);}
|
|
else if ((t_a >= t1) and (t < t2)) {return 1.0;}
|
|
else if (t_a >= t2) {return 0.5 - 0.5 * math.cos((1.0-(t2-t_a)/(t3-t2))*math.pi);}
|
|
}
|
|
|
|
var tl_factor = func (t, alt, height) {
|
|
|
|
# no time dependence modelled yet
|
|
return 1.0;
|
|
|
|
var t_a = t - (alt/height) * t1;
|
|
|
|
if (t_a<0) {return 0.0;}
|
|
else if (t_a<t1) {return 0.5 + 0.5 * math.cos((1.0-t_a/t1)* math.pi);}
|
|
else if ((t_a >= t1) and (t < t2)) {return 1.0;}
|
|
else if (t_a >= t2) {return 0.5 - 0.5 * math.cos((1.0-(t2-t_a)/(t3-t2))*math.pi);}
|
|
}
|
|
|
|
|
|
var calcLift_max = func (alt, max_lift, height) {
|
|
|
|
# no lift below ground
|
|
if (alt < 0.0) {return 0.0;}
|
|
|
|
# lift ramps up to full within 200 m
|
|
else if (alt < 200.0*m_to_ft)
|
|
{return max_lift * 0.5 * (1.0 + math.cos((1.0-alt/(200.0*m_to_ft))*math.pi));}
|
|
|
|
# constant max. lift in main body
|
|
else if ((alt > 200.0*m_to_ft) and (alt < height))
|
|
{return max_lift;}
|
|
|
|
# decreasing lift from cloudbase to 10% above base
|
|
else if ((alt > height ) and (alt < height*1.1))
|
|
{return max_lift * 0.5 * (1.0 - math.cos((1.0-10.0*alt/height)*math.pi));}
|
|
|
|
# no lift available above
|
|
else {return 0.0;}
|
|
}
|
|
|
|
|
|
|
|
var calcLift = func (d, alt, R, height, cn, sh, max_lift, f_lift_radius, t) {
|
|
|
|
# radius of slice at given altitude
|
|
var r_total = (cn + alt/height*(1.0-cn)) * (R - R * (1.0- sh ) * (1.0 - ((2.0*alt/height)-1.0)*((2.0*alt/height)-1.0)));
|
|
|
|
|
|
# print("r_total: ", r_total, "d: ",d);
|
|
# print("alt: ", alt, "height: ",height);
|
|
|
|
# no lift if we're outside the radius or above the thermal
|
|
if ((d > r_total) or (alt > 1.1*height)) { return 0.0; }
|
|
|
|
# fraction of radius providing lift
|
|
var r_lift = f_lift_radius * r_total;
|
|
|
|
# print("r_lift: ", r_lift);
|
|
|
|
# if we are in the sink portion, get the max. sink for this time and altitude and adjust for actual position
|
|
if ((d < r_total ) and (d > r_lift))
|
|
{
|
|
var s_max = 0.5 * calcLift_max(alt, max_lift, height) * ts_factor(t, alt, height);
|
|
# print("s_max: ", s_max);
|
|
return s_max * math.sin(math.pi * (1.0 + (d-r_lift) * (1.0/(r_total - r_lift))));
|
|
}
|
|
# else we are in the lift portion, get the max. lift for this time and altitude and adjust for actual position
|
|
else
|
|
{
|
|
var l_max = calcLift_max(alt, max_lift, height) * tl_factor(t, alt, height);
|
|
# print("l_max: ", l_max);
|
|
return l_max * math.cos(math.pi * (d/(2.0 * r_lift)));
|
|
}
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# randomize positions of clouds created in a fixed pattern
|
|
###########################################################
|
|
|
|
var randomize_pos = func (type, alt_var, pos_var_x, pos_var_y, dir) {
|
|
|
|
# it is rather stupid coding to force the randomization call after the streak call, and I'll probably
|
|
# restructure the whole thing soon
|
|
|
|
dir = dir * math.pi/180.0;
|
|
|
|
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{
|
|
var s = size(clouds_type);
|
|
for (i=0; i<s; i=i+1)
|
|
{
|
|
if (clouds_type[i] == "tmp_cloud")
|
|
{
|
|
var x = pos_var_x * 2.0 * (rand() -0.5);
|
|
var y = pos_var_y * 2.0 * (rand() -0.5);
|
|
clouds_lat[i] = clouds_lat[i] + m_to_lat * (y * math.cos(dir) - x * math.sin(dir));
|
|
clouds_lon[i] = clouds_lon[i] + m_to_lon * (x * math.cos(dir) + y * math.sin(dir));
|
|
clouds_alt[i] = clouds_alt[i] + alt_var * 2 * (rand() - 0.5);
|
|
clouds_type[i] = type;
|
|
}
|
|
|
|
if (type=="Cumulonimbus (rain)") # we add a rain model
|
|
{
|
|
var path = "Models/Weather/rain2.xml";
|
|
create_cloud_vec("Rain", path, clouds_lat[i], clouds_lon[i], clouds_alt[i], 0.0, 0);
|
|
create_effect_volume(1, clouds_lat[i], clouds_lon[i], 2000.0, 2000.0, 0.0, 0.0, clouds_alt[i], 8000, 0.3, -1, -1, -1,0);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
var tile_counter = getprop(lw~"tiles/tile-counter");
|
|
var cloudNode = props.globals.getNode("local-weather/clouds", 1).getChild("tile",tile_counter,1).getChildren("cloud");
|
|
foreach (var e; cloudNode) {
|
|
var name = e.getNode("type",1).getValue();
|
|
|
|
|
|
if (name=="tmp_cloud")
|
|
{
|
|
var e_lat = e.getNode("position/latitude-deg");
|
|
var e_long = e.getNode("position/longitude-deg");
|
|
var e_alt = e.getNode("position/altitude-ft");
|
|
|
|
var slat = e_lat.getValue();
|
|
var slon = e_long.getValue();
|
|
var salt = e_alt.getValue();
|
|
|
|
var x = pos_var_x * 2.0 * (rand() -0.5);
|
|
var y = pos_var_y * 2.0 * (rand() -0.5);
|
|
|
|
slat = slat + m_to_lat * (y * math.cos(dir) - x * math.sin(dir));
|
|
slon = slon + m_to_lon * (x * math.cos(dir) + y * math.sin(dir));
|
|
|
|
|
|
salt = (salt + alt_var * 2 * (rand() - 0.5));
|
|
|
|
e_lat.setValue(slat);
|
|
e_long.setValue(slon);
|
|
e_alt.setValue(salt);
|
|
|
|
e.getNode("type").setValue(type);
|
|
|
|
if (type=="Cumulonimbus (rain)") # we add a rain model
|
|
{
|
|
var path = "Models/Weather/rain2.xml";
|
|
create_cloud("Rain", path, slat, slon, salt, 0.0, 0);
|
|
create_effect_volume(1, slat, slon, 2000.0, 2000.0, 0.0, 0.0, salt, 8000, 0.3, -1, -1, -1,0);
|
|
}
|
|
} # end if
|
|
} # end foreach
|
|
} # end else
|
|
|
|
}
|
|
|
|
###########################################################
|
|
# select a cloud model
|
|
###########################################################
|
|
|
|
var select_cloud_model = func(type, subtype) {
|
|
|
|
var rn = rand();
|
|
var path="Models/Weather/blank.ac";
|
|
|
|
if (type == "Cumulus"){
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/cumulus_small_shader1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/cumulus_small_shader2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/cumulus_small_shader3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/cumulus_small_shader4.xml";}
|
|
else {path = "Models/Weather/cumulus_small_shader5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.83) {path = "Models/Weather/cumulus_shader1.xml";}
|
|
else if (rn > 0.664) {path = "Models/Weather/cumulus_shader2.xml";}
|
|
else if (rn > 0.498) {path = "Models/Weather/cumulus_shader3.xml";}
|
|
else if (rn > 0.332) {path = "Models/Weather/cumulus_shader4.xml";}
|
|
else if (rn > 0.166) {path = "Models/Weather/cumulus_shader5.xml";}
|
|
else {path = "Models/Weather/cumulus_shader6.xml";}
|
|
}
|
|
}
|
|
else if (type == "Cumulus (cloudlet)"){
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/cumulus_sl7.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/cumulus_sl8.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/cumulus_sl9.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/cumulus_sl10.xml";}
|
|
else {path = "Models/Weather/cumulus_sl11.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/cumulus_sl1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/cumulus_sl2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/cumulus_sl3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/cumulus_sl4.xml";}
|
|
else {path = "Models/Weather/cumulus_sl5.xml";}
|
|
}
|
|
|
|
}
|
|
|
|
else if (type == "Altocumulus"){
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/altocumulus_shader6.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/altocumulus_shader7.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/altocumulus_shader8.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/altocumulus_shader9.xml";}
|
|
else {path = "Models/Weather/altocumulus_shader10.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/altocumulus_shader1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/altocumulus_shader2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/altocumulus_shader3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/altocumulus_shader4.xml";}
|
|
else {path = "Models/Weather/altocumulus_shader5.xml";}
|
|
}
|
|
}
|
|
else if (type == "Stratus (structured)"){
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/altocumulus_layer6.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/altocumulus_layer7.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/altocumulus_layer8.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/altocumulus_layer9.xml";}
|
|
else {path = "Models/Weather/altocumulus_layer10.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/altocumulus_layer1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/altocumulus_layer2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/altocumulus_layer3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/altocumulus_layer4.xml";}
|
|
else {path = "Models/Weather/altocumulus_layer5.xml";}
|
|
}
|
|
}
|
|
else if ((type == "Cumulonimbus") or (type == "Cumulonimbus (rain)")) {
|
|
if (subtype == "small") {
|
|
if (rn > 0.5) {path = "Models/Weather/cumulonimbus_small1.xml";}
|
|
else {path = "Models/Weather/cumulonimbus_small2.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.5) {path = "Models/Weather/cumulonimbus_small1.xml";}
|
|
else {path = "Models/Weather/cumulonimbus_small2.xml";}
|
|
}
|
|
}
|
|
else if (type == "Cirrus") {
|
|
if (subtype == "large") {
|
|
if (rn > 0.66) {path = "Models/Weather/cirrus1.xml";}
|
|
else if (rn > 0.33) {path = "Models/Weather/cirrus2.xml";}
|
|
else {path = "Models/Weather/cirrus3.xml";}
|
|
}
|
|
else if (subtype == "small") {
|
|
if (rn > 0.5) {path = "Models/Weather/cirrus_amorphous1.xml";}
|
|
else {path = "Models/Weather/cirrus_amorphous2.xml";}
|
|
}
|
|
}
|
|
else if (type == "Cirrocumulus") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.5) {path = "Models/Weather/cirrocumulus1.xml";}
|
|
else {path = "Models/Weather/cirrocumulus2.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.5) {path = "Models/Weather/cirrocumulus1.xml";}
|
|
else {path = "Models/Weather/cirrocumulus4.xml";}
|
|
}
|
|
}
|
|
else if (type == "Nimbus") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/nimbus_sls1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/nimbus_sls2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/nimbus_sls3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/nimbus_sls4.xml";}
|
|
else {path = "Models/Weather/nimbus_sls5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/nimbus_sl1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/nimbus_sl2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/nimbus_sl3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/nimbus_sl4.xml";}
|
|
else {path = "Models/Weather/nimbus_sl5.xml";}
|
|
}
|
|
}
|
|
else if (type == "Stratus") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_layer1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_layer2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_layer3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_layer4.xml";}
|
|
else {path = "Models/Weather/stratus_layer5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_layer1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_layer2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_layer3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_layer4.xml";}
|
|
else {path = "Models/Weather/stratus_layer5.xml";}
|
|
}
|
|
}
|
|
else if (type == "Stratus (thin)") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_tlayer1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_tlayer2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_tlayer3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_tlayer4.xml";}
|
|
else {path = "Models/Weather/stratus_tlayer5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_tlayer1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_tlayer2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_tlayer3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_tlayer4.xml";}
|
|
else {path = "Models/Weather/stratus_tlayer5.xml";}
|
|
}
|
|
}
|
|
else if (type == "Cirrostratus") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.75) {path = "Models/Weather/cirrostratus1.xml";}
|
|
else if (rn > 0.5) {path = "Models/Weather/cirrostratus2.xml";}
|
|
else if (rn > 0.25) {path = "Models/Weather/cirrostratus3.xml";}
|
|
else {path = "Models/Weather/cirrostratus4.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.75) {path = "Models/Weather/cirrostratus1.xml";}
|
|
else if (rn > 0.5) {path = "Models/Weather/cirrostratus2.xml";}
|
|
else if (rn > 0.25) {path = "Models/Weather/cirrostratus3.xml";}
|
|
else {path = "Models/Weather/cirrostratus4.xml";}
|
|
}
|
|
}
|
|
else if (type == "Fog (thin)") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_thin1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_thin2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_thin3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_thin4.xml";}
|
|
else {path = "Models/Weather/stratus_thin5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_thin1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_thin2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_thin3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_thin4.xml";}
|
|
else {path = "Models/Weather/stratus_thin5.xml";}
|
|
}
|
|
}
|
|
else if (type == "Fog (thick)") {
|
|
if (subtype == "small") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_thick1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_thick2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_thick3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_thick4.xml";}
|
|
else {path = "Models/Weather/stratus_thick5.xml";}
|
|
}
|
|
else if (subtype == "large") {
|
|
if (rn > 0.8) {path = "Models/Weather/stratus_thick1.xml";}
|
|
else if (rn > 0.6) {path = "Models/Weather/stratus_thick2.xml";}
|
|
else if (rn > 0.4) {path = "Models/Weather/stratus_thick3.xml";}
|
|
else if (rn > 0.2) {path = "Models/Weather/stratus_thick4.xml";}
|
|
else {path = "Models/Weather/stratus_thick5.xml";}
|
|
}
|
|
}
|
|
|
|
else {print("Cloud type ", type, " subtype ",subtype, " not available!");}
|
|
|
|
return path;
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# place a single cloud
|
|
###########################################################
|
|
|
|
var create_cloud = func(type, path, lat, long, alt, heading, rnd_flag) {
|
|
|
|
var tile_counter = getprop(lw~"tiles/tile-counter");
|
|
|
|
var n = props.globals.getNode("local-weather/clouds", 1);
|
|
var c = n.getChild("tile",tile_counter,1);
|
|
|
|
var cloud_number = n.getNode("placement-index").getValue();
|
|
for (var i = cloud_number; 1; i += 1)
|
|
if (c.getChild("cloud", i, 0) == nil)
|
|
break;
|
|
cl = c.getChild("cloud", i, 1);
|
|
n.getNode("placement-index").setValue(i);
|
|
|
|
|
|
var model_number = n.getNode("model-placement-index").getValue();
|
|
var m = props.globals.getNode("models", 1);
|
|
for (var i = model_number; 1; i += 1)
|
|
if (m.getChild("model", i, 0) == nil)
|
|
break;
|
|
model = m.getChild("model", i, 1);
|
|
n.getNode("model-placement-index").setValue(i);
|
|
|
|
|
|
|
|
cl.getNode("type", 1).setValue(type);
|
|
var latN = cl.getNode("position/latitude-deg", 1); latN.setValue(lat);
|
|
var lonN = cl.getNode("position/longitude-deg", 1); lonN.setValue(long);
|
|
var altN = cl.getNode("position/altitude-ft", 1); altN.setValue(alt);
|
|
var hdgN = cl.getNode("orientation/true-heading-deg", 1); hdgN.setValue(heading);
|
|
var pitchN = cl.getNode("orientation/pitch-deg", 1); pitchN.setValue(0.0);
|
|
var rollN = cl.getNode("orientation/roll-deg", 1);rollN.setValue(0.0);
|
|
|
|
cl.getNode("tile-index",1).setValue(tile_counter);
|
|
|
|
model.getNode("path", 1).setValue(path);
|
|
model.getNode("legend", 1).setValue("Cloud");
|
|
model.getNode("latitude-deg-prop", 1).setValue(latN.getPath());
|
|
model.getNode("longitude-deg-prop", 1).setValue(lonN.getPath());
|
|
model.getNode("elevation-ft-prop", 1).setValue(altN.getPath());
|
|
model.getNode("heading-deg-prop", 1).setValue(hdgN.getPath());
|
|
model.getNode("pitch-deg-prop", 1).setValue(pitchN.getPath());
|
|
model.getNode("roll-deg-prop", 1).setValue(rollN.getPath());
|
|
model.getNode("tile-index",1).setValue(tile_counter);
|
|
model.getNode("load", 1).remove();
|
|
|
|
n.getNode("cloud-number").setValue(n.getNode("cloud-number").getValue()+1);
|
|
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# place a single cloud into a vector to be processed
|
|
# in a split loop
|
|
###########################################################
|
|
|
|
var create_cloud_vec = func(type, path, lat, long, alt, heading, rain_flag) {
|
|
|
|
append(clouds_type,type);
|
|
append(clouds_path,path);
|
|
append(clouds_lat,lat);
|
|
append(clouds_lon,long);
|
|
append(clouds_alt,alt);
|
|
append(clouds_orientation,heading);
|
|
|
|
}
|
|
###########################################################
|
|
# clear all clouds and effects
|
|
###########################################################
|
|
|
|
var clear_all = func {
|
|
|
|
# clear the clouds and models
|
|
|
|
var cloudNode = props.globals.getNode(lw~"clouds", 1);
|
|
cloudNode.removeChildren("tile");
|
|
|
|
var modelNode = props.globals.getNode("models", 1).getChildren("model");
|
|
|
|
foreach (var m; modelNode)
|
|
{
|
|
var l = m.getNode("legend").getValue();
|
|
if (l == "Cloud")
|
|
{
|
|
m.remove();
|
|
}
|
|
}
|
|
|
|
cloudNode.getNode("cloud-number",1).setValue(0);
|
|
|
|
# clear effect volumes
|
|
|
|
props.globals.getNode("local-weather/effect-volumes", 1).removeChildren("effect-volume");
|
|
|
|
# stop the effect loop and the interpolation loop, make sure thermal generation is off
|
|
|
|
setprop(lw~"effect-loop-flag",0);
|
|
setprop(lw~"interpolation-loop-flag",0);
|
|
setprop(lw~"tile-loop-flag",0);
|
|
setprop(lw~"lift-loop-flag",0);
|
|
setprop(lw~"tmp/generate-thermal-lift-flag",0);
|
|
|
|
# also remove rain and snow effects
|
|
|
|
setRain(0.0);
|
|
setSnow(0.0);
|
|
|
|
# set placement indices to zero
|
|
|
|
setprop(lw~"clouds/placement-index",0);
|
|
setprop(lw~"clouds/model-placement-index",0);
|
|
setprop(lw~"effect-volumes/effect-placement-index",0);
|
|
setprop(lw~"tiles/tile-counter",0);
|
|
|
|
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# detailed Cumulus clouds created from multiple sprites
|
|
###########################################################
|
|
|
|
var create_detailed_cumulus_cloud = func (lat, lon, alt, size) {
|
|
|
|
#print(size);
|
|
|
|
if (size>2.0)
|
|
{
|
|
var height = 1200;
|
|
var n = 24;
|
|
var x = 800.0;
|
|
var y = 300.0;
|
|
var edge = 0.3;
|
|
}
|
|
|
|
else if (size>1.0)
|
|
{
|
|
var height = 400;
|
|
var n = 8;
|
|
var x = 400.0;
|
|
var y = 200.0;
|
|
var edge = 0.3;
|
|
}
|
|
else
|
|
{
|
|
var height = 100;
|
|
var n = 4;
|
|
var x = 200.0;
|
|
var y = 200.0;
|
|
var edge = 1.0;
|
|
}
|
|
|
|
var alpha = rand() * 180.0;
|
|
|
|
|
|
|
|
create_streak("Cumulus (cloudlet)",lat,lon, alt+ 0.5* (height +cloud_vertical_size_map["Cumulus"] * ft_to_m),n,0.0,edge,1,0.0,0.0,alpha,1.0);
|
|
randomize_pos("Cumulus (cloudlet)",height,x,y,alpha);
|
|
|
|
}
|
|
|
|
###########################################################
|
|
# wrappers for convective cloud system to distribute
|
|
# call across several frames if needed
|
|
###########################################################
|
|
|
|
var create_cumosys = func (blat, blon, balt, nc, size) {
|
|
|
|
# realistic Cumulus has somewhat larger models, so compensate to get the same coverage
|
|
if (getprop(lw~"config/detailed-clouds-flag") == 1)
|
|
{nc = int(0.5 * nc);}
|
|
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{setprop(lw~"tmp/convective-status", "computing");
|
|
cumulus_loop(blat, blon, balt, nc, size);}
|
|
|
|
else
|
|
{create_cumulus(blat, blon, balt, nc, size);
|
|
print("Convective system done!");}
|
|
}
|
|
|
|
|
|
|
|
var cumulus_loop = func (blat, blon, balt, nc, size) {
|
|
|
|
var n = 25;
|
|
|
|
if (nc < 0) {print("Convective system done!");setprop(lw~"tmp/convective-status", "idle");return;}
|
|
|
|
#print("nc is now: ",nc);
|
|
create_cumulus(blat, blon, balt, n, size);
|
|
|
|
settimer( func {cumulus_loop(blat, blon, balt, nc-n, size) },0);
|
|
}
|
|
|
|
###########################################################
|
|
# place a convective cloud system
|
|
###########################################################
|
|
|
|
var create_cumulus = func (blat, blon, balt, nc, size) {
|
|
|
|
|
|
|
|
var path = "Models/Weather/blank.ac";
|
|
var i = 0;
|
|
var p = 0.0;
|
|
var rn = 0.0;
|
|
var place_lift_flag = 0;
|
|
var strength = 0.0;
|
|
var detail_flag = getprop(lw~"config/detailed-clouds-flag");
|
|
|
|
var sec_to_rad = 2.0 * math.pi/86400;
|
|
|
|
calc_geo(blat);
|
|
|
|
# get the local time of the day in seconds
|
|
|
|
var t = getprop("sim/time/utc/day-seconds");
|
|
t = t + getprop("sim/time/local-offset");
|
|
|
|
# print("t is now:", t);
|
|
|
|
# and make a simple sinusoidal model of thermal strength
|
|
|
|
var t_factor1 = 0.5 * 1.0-math.cos((t * sec_to_rad));
|
|
var t_factor2 = 0.5 * 1.0-math.cos((t * sec_to_rad)-0.52);
|
|
|
|
# print("t-factor is now: ",t_factor);
|
|
|
|
nc = t_factor1 * nc * math.cos(blat/180.0*math.pi);
|
|
|
|
|
|
while (i < nc) {
|
|
|
|
p = 0.0;
|
|
place_lift_flag = 0;
|
|
strength = 0.0;
|
|
|
|
var x = (2.0 * rand() - 1.0) * size;
|
|
var y = (2.0 * rand() - 1.0) * size;
|
|
|
|
var lat = blat + y * m_to_lat;
|
|
var lon = blon + x * m_to_lon;
|
|
var info = geodinfo(lat, lon);
|
|
|
|
if (info != nil) {
|
|
if (info[1] != nil){
|
|
var landcover = info[1].names[0];
|
|
if (contains(landcover_map,landcover)) {p = p + landcover_map[landcover];}
|
|
else {print(p, " ", info[1].names[0]);}
|
|
}}
|
|
|
|
|
|
if (rand() < p)
|
|
{
|
|
if (rand() + (2.0 * p) > 1.0)
|
|
{
|
|
path = select_cloud_model("Cumulus","large"); place_lift_flag = 1; strength=1.0;
|
|
}
|
|
else {path = select_cloud_model("Cumulus","small");}
|
|
|
|
if (getprop(lw~"tmp/generate-thermal-lift-flag") != 3) # see if we produce blue thermals
|
|
{
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{
|
|
if (detail_flag == 0){create_cloud_vec("Cumulus",path,lat,lon, balt, 0.0, 0);}
|
|
else {create_detailed_cumulus_cloud(lat, lon, balt, p + strength+rand());}
|
|
}
|
|
else
|
|
{
|
|
if (detail_flag == 0){create_cloud("Cumulus", path, lat, lon, balt, 0.0, 0);}
|
|
else {create_detailed_cumulus_cloud(lat, lon, balt, p + strength+rand());}
|
|
}
|
|
}
|
|
|
|
# now see if we need to create a thermal - first check the flag
|
|
if (getprop(lw~"tmp/generate-thermal-lift-flag") == 1)
|
|
{
|
|
# now check if convection is strong
|
|
if (place_lift_flag == 1)
|
|
{
|
|
var lift = 3.0 + 20.0 * p * rand();
|
|
var radius = 500 + 500 * rand();
|
|
create_effect_volume(1, lat, lon, radius, radius, 0.0, 0.0, balt+500.0, -1, -1, -1, -1, lift, 1);
|
|
} # end if place_lift_flag
|
|
} # end if generate-thermal-lift-flag
|
|
else if ((getprop(lw~"tmp/generate-thermal-lift-flag") == 2) or (getprop(lw~"tmp/generate-thermal-lift-flag") == 3))
|
|
{
|
|
|
|
if (place_lift_flag == 1)
|
|
{
|
|
var lift = 3.0 + 20.0 * p * rand();
|
|
var radius = 500 + 500 * rand();
|
|
create_effect_volume(1, lat, lon, 1.2*radius, 1.2*radius, 0.0, 0.0, balt+500.0, -1, -1, -1, -1, lift, -2);
|
|
} # end if place_lift_flag
|
|
|
|
} # end if generate-thermal-lift-flag
|
|
|
|
|
|
} # end if rand < p
|
|
i = i + 1;
|
|
} # end while
|
|
|
|
}
|
|
|
|
###########################################################
|
|
# terrain sampling
|
|
###########################################################
|
|
|
|
var terrain_presampling = func {
|
|
|
|
var size = 20000.0;
|
|
var blat = getprop("position/latitude-deg");
|
|
var blon = getprop("position/longitude-deg");
|
|
var elevation = 0.0;
|
|
var n=[];
|
|
setsize(n,20);
|
|
|
|
calc_geo(blat);
|
|
|
|
for(j=0;j<20;j=j+1){n[j]=0;}
|
|
|
|
for (i=0; i<1000; i=i+1)
|
|
{
|
|
var x = (2.0 * rand() - 1.0) * size;
|
|
var y = (2.0 * rand() - 1.0) * size;
|
|
|
|
var lat = blat + y * m_to_lat;
|
|
var lon = blon + x * m_to_lon;
|
|
|
|
var info = geodinfo(lat, lon);
|
|
if (info != nil) {elevation = info[0] * m_to_ft;}
|
|
for(j=0;j<20;j=j+1){if (elevation < 500.0 * (j+1))
|
|
{n[j] = n[j]+1; break;}}
|
|
|
|
}
|
|
|
|
for (i=0;i<20;i=i+1){print(500.0*i," ",n[i]);}
|
|
}
|
|
|
|
|
|
|
|
###########################################################
|
|
# place a barrier cloud system
|
|
###########################################################
|
|
|
|
var create_rise_clouds = func (blat, blon, balt, nc, size, winddir, dist) {
|
|
|
|
var path = "Models/Weather/blank.ac";
|
|
var i = 0;
|
|
var p = 0.0;
|
|
var rn = 0.0;
|
|
var nsample = 10;
|
|
var counter = 0;
|
|
var elevation = 0.0;
|
|
var dir = (winddir + 180.0) * math.pi/180.0;
|
|
var step = dist/nsample;
|
|
|
|
calc_geo(blat);
|
|
|
|
while (i < nc) {
|
|
|
|
counter = counter + 1;
|
|
p = 0.0;
|
|
elevation=0.0;
|
|
|
|
var x = (2.0 * rand() - 1.0) * size;
|
|
var y = (2.0 * rand() - 1.0) * size;
|
|
|
|
var lat = blat + y * m_to_lat;
|
|
var lon = blon + x * m_to_lon;
|
|
|
|
var info = geodinfo(lat, lon);
|
|
if (info != nil) {elevation = info[0] * m_to_ft;}
|
|
|
|
|
|
|
|
if ((elevation < balt) and (elevation != 0.0))
|
|
{
|
|
for (var j = 0; j<nsample; j=j+1)
|
|
{
|
|
d = j * step;
|
|
x = d * math.sin(dir);
|
|
y = d * math.cos(dir);
|
|
var tlat = lat + y * m_to_lat;
|
|
var tlon = lon + x * m_to_lon;
|
|
info = geodinfo(tlat, tlon);
|
|
if (info != nil) {
|
|
elevation = info[0] * m_to_ft;
|
|
if (elevation > balt)
|
|
{
|
|
p = 1.0 - j * (1.0/nsample);
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
if (counter > 500) {print("Cannot place clouds - exiting..."); i = nc;}
|
|
if (rand() < p)
|
|
{
|
|
path = select_cloud_model("Altocumulus","large");
|
|
#print("Cloud ",i, " after ",counter, " tries");
|
|
create_cloud("Altocumulus", path, lat, lon, balt, 0.0, 0);
|
|
counter = 0;
|
|
i = i+1;
|
|
}
|
|
|
|
} # end while
|
|
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# place a cloud streak
|
|
###########################################################
|
|
|
|
var create_streak = func (type, blat, blong, balt, nx, xoffset, edgex, ny, yoffset, edgey, direction, tri) {
|
|
|
|
var flag = 0;
|
|
var path = "Models/Weather/blank.ac";
|
|
calc_geo(blat);
|
|
var dir = direction * math.pi/180.0;
|
|
|
|
var ymin = -0.5 * ny * yoffset;
|
|
var xmin = -0.5 * nx * xoffset;
|
|
var xinc = xoffset * (tri-1.0) /ny;
|
|
|
|
var jlow = int(nx*edgex);
|
|
var ilow = int(ny*edgey);
|
|
|
|
|
|
for (var i=0; i<ny; i=i+1)
|
|
{
|
|
var y = ymin + i * yoffset;
|
|
#print("xmax is now:", ny * (xoffset + i * xinc));
|
|
|
|
for (var j=0; j<nx; j=j+1)
|
|
{
|
|
var x = xmin + j * (xoffset + i * xinc);
|
|
var lat = blat + m_to_lat * (y * math.cos(dir) - x * math.sin(dir));
|
|
var long = blong + m_to_lon * (x * math.cos(dir) + y * math.sin(dir));
|
|
flag = 0;
|
|
var rn = 6.0 * rand();
|
|
|
|
if (((j<jlow) or (j>(nx-jlow-1))) and ((i<ilow) or (i>(ny-ilow-1)))) # select a small or no cloud
|
|
{
|
|
if (rn > 2.0) {flag = 1;} else {path = select_cloud_model(type,"small");}
|
|
}
|
|
if ((j<jlow) or (j>(nx-jlow-1)) or (i<ilow) or (i>(ny-ilow-1)))
|
|
{
|
|
if (rn > 5.0) {flag = 1;} else {path = select_cloud_model(type,"small");}
|
|
}
|
|
else { # select a large cloud
|
|
if (rn > 5.0) {flag = 1;} else {path = select_cloud_model(type,"large");}
|
|
}
|
|
|
|
#if (rand() > 0.5) {var beta = 0.0;} else {var beta = 180.0;}
|
|
|
|
if (flag==0){
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{create_cloud_vec("tmp_cloud", path, lat, long, balt, 0.0, 0);}
|
|
else
|
|
{create_cloud("tmp_cloud", path, lat, long, balt, 0.0, 0);}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# place a cloud layer
|
|
###########################################################
|
|
|
|
var create_layer = func (type, blat, blon, balt, bthick, rx, ry, phi, density, edge, rainflag, rain_density) {
|
|
|
|
|
|
var i = 0;
|
|
var area = math.pi * rx * ry;
|
|
var circ = math.pi * (rx + ry); # that's just an approximation
|
|
var n = int(area/80000000.0 * 100 * density);
|
|
var m = int(circ/63000.0 * 40 * rain_density);
|
|
var path = "Models/Weather/blank.ac";
|
|
|
|
phi = phi * math.pi/180.0;
|
|
|
|
if (contains(cloud_vertical_size_map, type))
|
|
{var alt_offset = cloud_vertical_size_map[type]/2.0 * m_to_ft;}
|
|
else {var alt_offset = 0.0;}
|
|
|
|
while(i<n)
|
|
{
|
|
var x = rx * (2.0 * rand() - 1.0);
|
|
var y = ry * (2.0 * rand() - 1.0);
|
|
var alt = balt + bthick * rand() + 0.8 * alt_offset;
|
|
var res = (x*x)/(rx*rx) + (y*y)/(ry*ry);
|
|
|
|
if (res < 1.0)
|
|
{
|
|
var lat = blat + m_to_lat * (y * math.cos(phi) - x * math.sin(phi));
|
|
var lon = blon + m_to_lon * (x * math.cos(phi) + y * math.sin(phi));
|
|
if (res > ((1.0 - edge) * (1.0- edge)))
|
|
{
|
|
if (rand() > 0.4) {
|
|
path = select_cloud_model(type,"small");
|
|
create_cloud(type, path, lat, lon, alt, 0.0, 0);
|
|
}
|
|
}
|
|
else {
|
|
path = select_cloud_model(type,"large");
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{create_cloud_vec(type, path, lat, lon, alt, 0.0, 0);}
|
|
else
|
|
{create_cloud(type, path, lat, lon, alt, 0.0, 0);}
|
|
}
|
|
i = i + 1;
|
|
}
|
|
}
|
|
|
|
i = 0;
|
|
|
|
if (rainflag ==1){
|
|
|
|
while(i<m)
|
|
{
|
|
var alpha = rand() * 2.0 * math.pi;
|
|
x = 0.8 * (1.0 - edge) * (1.0-edge) * rx * math.cos(alpha);
|
|
y = 0.8 * (1.0 - edge) * (1.0-edge) * ry * math.sin(alpha);
|
|
|
|
lat = blat + m_to_lat * (y * math.cos(phi) - x * math.sin(phi));
|
|
lon = blon + m_to_lon * (x * math.cos(phi) + y * math.sin(phi));
|
|
|
|
path = "Models/Weather/rain1.xml";
|
|
if (contains(cloud_vertical_size_map,type)) {var alt_shift = cloud_vertical_size_map[type];}
|
|
else {var alt_shift = 0.0;}
|
|
|
|
if (getprop(lw~"tmp/thread-flag") == 1)
|
|
{create_cloud_vec("Rain", path, lat, lon,balt +0.5*bthick+ alt_shift, 0.0, 0);}
|
|
else
|
|
{create_cloud("Rain", path, lat, lon, balt + 0.5 * bthick + alt_shift, 0.0, 0);}
|
|
i = i + 1;
|
|
} # end while
|
|
} # end if (rainflag ==1)
|
|
}
|
|
|
|
###########################################################
|
|
# place a cloud layer from arrays, only 20 clouds/frame
|
|
###########################################################
|
|
|
|
var cloud_placement_loop = func (i) {
|
|
|
|
if (getprop(lw~"tmp/thread-status") != "placing") {return;}
|
|
if (getprop(lw~"tmp/convective-status") != "idle") {return;}
|
|
if ((i < 0) or (i==0))
|
|
{
|
|
print("Cloud placement from array finished!");
|
|
setprop(lw~"tmp/thread-status", "idle");
|
|
return;
|
|
}
|
|
|
|
|
|
var k_max = 20;
|
|
var s = size(clouds_type);
|
|
|
|
if (s < k_max) {k_max = s;}
|
|
|
|
for (var k = 0; k < k_max; k = k+1)
|
|
{
|
|
#print(s, " ", k, " ", s-k-1, " ", clouds_path[s-k-1]);
|
|
create_cloud(clouds_type[s-k-1], clouds_path[s-k-1], clouds_lat[s-k-1], clouds_lon[s-k-1], clouds_alt[s-k-1], 0.0, 0);
|
|
}
|
|
|
|
setsize(clouds_type,s-k_max);
|
|
setsize(clouds_path,s-k_max);
|
|
setsize(clouds_lat,s-k_max);
|
|
setsize(clouds_lon,s-k_max);
|
|
setsize(clouds_alt,s-k_max);
|
|
setsize(clouds_orientation,s-k_max);
|
|
|
|
settimer( func {cloud_placement_loop(i - k ) }, 0 );
|
|
};
|
|
|
|
|
|
|
|
###########################################################
|
|
# create an effect volume
|
|
###########################################################
|
|
|
|
var create_effect_volume = func (geometry, lat, lon, r1, r2, phi, alt_low, alt_high, vis, rain, snow, turb, lift, lift_flag) {
|
|
|
|
var flag = 0;
|
|
|
|
var index = getprop(lw~"effect-volumes/effect-placement-index");
|
|
|
|
var n = props.globals.getNode("local-weather/effect-volumes", 1);
|
|
for (var i = index; 1; i += 1)
|
|
if (n.getChild("effect-volume", i, 0) == nil)
|
|
break;
|
|
|
|
setprop(lw~"effect-volumes/effect-placement-index",i);
|
|
|
|
|
|
ev = n.getChild("effect-volume", i, 1);
|
|
|
|
ev.getNode("geometry", 1).setValue(geometry);
|
|
ev.getNode("active-flag", 1).setValue(0);
|
|
ev.getNode("position/latitude-deg", 1).setValue(lat);
|
|
ev.getNode("position/longitude-deg", 1).setValue(lon);
|
|
ev.getNode("position/min-altitude-ft", 1).setValue(alt_low);
|
|
ev.getNode("position/max-altitude-ft", 1).setValue(alt_high);
|
|
ev.getNode("volume/size-x", 1).setValue(r1);
|
|
ev.getNode("volume/size-y", 1).setValue(r2);
|
|
ev.getNode("volume/orientation-deg", 1).setValue(phi);
|
|
ev.getNode("tile-index",1).setValue(getprop(lw~"tiles/tile-counter"));
|
|
|
|
var flag = 1;
|
|
if (vis < 0.0) {flag = 0;}
|
|
ev.getNode("effects/visibility-flag", 1).setValue(flag);
|
|
ev.getNode("effects/visibility-m", 1).setValue(vis);
|
|
|
|
flag = 1;
|
|
if (rain < 0.0) {flag = 0;}
|
|
ev.getNode("effects/rain-flag", 1).setValue(flag);
|
|
ev.getNode("effects/rain-norm", 1).setValue(rain);
|
|
|
|
flag = 1;
|
|
if (snow < 0.0) {flag = 0;}
|
|
ev.getNode("effects/snow-flag", 1).setValue(flag);
|
|
ev.getNode("effects/snow-norm", 1).setValue(snow);
|
|
|
|
flag = 1;
|
|
if (snow < 0.0) {flag = 0;}
|
|
ev.getNode("effects/snow-flag", 1).setValue(flag);
|
|
ev.getNode("effects/snow-norm", 1).setValue(snow);
|
|
|
|
flag = 1;
|
|
if (turb < 0.0) {flag = 0;}
|
|
ev.getNode("effects/turbulence-flag", 1).setValue(flag);
|
|
ev.getNode("effects/turbulence", 1).setValue(turb);
|
|
|
|
flag = 1;
|
|
if (lift_flag == 0) {flag = 0;}
|
|
ev.getNode("effects/thermal-lift-flag", 1).setValue(flag);
|
|
ev.getNode("effects/thermal-lift", 1).setValue(lift);
|
|
|
|
flag = 1;
|
|
if (lift_flag == -2) # we create a thermal by function
|
|
{
|
|
ev.getNode("effects/thermal-lift-flag", 1).setValue(2);
|
|
ev.getNode("effects/radius",1 ).setValue(0.8*r1);
|
|
ev.getNode("effects/height",1).setValue(alt_high);
|
|
ev.getNode("effects/cn",1).setValue(0.8);
|
|
ev.getNode("effects/sh",1).setValue(0.8);
|
|
ev.getNode("effects/max_lift",1).setValue(lift);
|
|
ev.getNode("effects/f_lift_radius",1).setValue(0.8);
|
|
}
|
|
|
|
|
|
|
|
# and add to the counter
|
|
setprop(lw~"effect-volumes/number",getprop(lw~"effect-volumes/number")+1);
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# place an effect volume from arrays
|
|
# only 20 volumes/frame
|
|
###########################################################
|
|
|
|
var effect_placement_loop = func (i) {
|
|
|
|
if (getprop(lw~"tmp/effect-thread-status") != "placing") {return;}
|
|
if (getprop(lw~"tmp/convective-status") != "idle") {return;}
|
|
if ((i < 0) or (i==0))
|
|
{
|
|
print("Effect placement from array finished!");
|
|
setprop(lw~"tmp/effect-thread-status", "idle");
|
|
return;
|
|
}
|
|
|
|
|
|
var k_max = 20;
|
|
var s = size(effects_geo);
|
|
|
|
if (s < k_max) {k_max = s;}
|
|
|
|
for (var k = 0; k < k_max; k = k+1)
|
|
{
|
|
create_effect_volume(effects_geo[s-k-1], effects_lat[s-k-1], effects_lon[s-k-1], effects_r1[s-k-1], effects_r2[s-k-1], effects_phi[s-k-1], effects_alt_low[s-k-1], effects_alt_high[s-k-1], effects_vis[s-k-1], effects_rain[s-k-1], effects_snow[s-k-1], effects_turb[s-k-1], effects_lift[s-k-1], effects_lift_flag[s-k-1]);
|
|
|
|
}
|
|
|
|
setsize(effects_geo, s-k_max);
|
|
setsize(effects_lat, s-k_max);
|
|
setsize(effects_lon, s-k_max);
|
|
setsize(effects_r1, s-k_max);
|
|
setsize(effects_r2, s-k_max);
|
|
setsize(effects_phi, s-k_max);
|
|
setsize(effects_alt_low, s-k_max);
|
|
setsize(effects_alt_high, s-k_max);
|
|
setsize(effects_vis, s-k_max);
|
|
setsize(effects_rain, s-k_max);
|
|
setsize(effects_snow, s-k_max);
|
|
setsize(effects_turb, s-k_max);
|
|
setsize(effects_lift, s-k_max);
|
|
setsize(effects_lift_flag, s-k_max);
|
|
|
|
settimer( func {effect_placement_loop(i - k ) }, 0 );
|
|
};
|
|
|
|
###########################################################
|
|
# create an effect volume vector for use in split
|
|
# frame loops
|
|
###########################################################
|
|
|
|
var create_effect_volume_vec = func (geometry, lat, lon, r1, r2, phi, alt_low, alt_high, vis, rain, snow, turb, lift, lift_flag) {
|
|
|
|
append(effects_geo,geometry);
|
|
append(effects_lat,lat);
|
|
append(effects_lon,lon);
|
|
append(effects_r1,r1);
|
|
append(effects_r2,r2);
|
|
append(effects_phi,phi);
|
|
append(effects_alt_low,alt_low);
|
|
append(effects_alt_high,alt_high);
|
|
append(effects_vis,vis);
|
|
append(effects_rain,rain);
|
|
append(effects_snow,snow);
|
|
append(effects_turb,turb);
|
|
append(effects_lift,lift);
|
|
append(effects_lift_flag,lift_flag);
|
|
}
|
|
|
|
###########################################################
|
|
# set a weather station for interpolation
|
|
###########################################################
|
|
|
|
var set_weather_station = func (lat, lon, vis, T, D, p) {
|
|
|
|
var n = props.globals.getNode(lwi, 1);
|
|
for (var i = 0; 1; i += 1)
|
|
if (n.getChild("station", i, 0) == nil)
|
|
break;
|
|
|
|
s = n.getChild("station", i, 1);
|
|
|
|
s.getNode("latitude-deg",1).setValue(lat);
|
|
s.getNode("longitude-deg",1).setValue(lon);
|
|
s.getNode("visibility-m",1).setValue(vis);
|
|
s.getNode("temperature-degc",1).setValue(T);
|
|
s.getNode("dewpoint-degc",1).setValue(D);
|
|
s.getNode("pressure-sea-level-inhg",1).setValue(p);
|
|
}
|
|
|
|
|
|
###########################################################
|
|
# wrappers to call functions from the local weather menu bar
|
|
###########################################################
|
|
|
|
var streak_wrapper = func {
|
|
|
|
var lat = getprop("position/latitude-deg");
|
|
var lon = getprop("position/longitude-deg");
|
|
var type = getprop("/local-weather/tmp/cloud-type");
|
|
var alt = getprop("/local-weather/tmp/alt");
|
|
var nx = getprop("/local-weather/tmp/nx");
|
|
var xoffset = getprop("/local-weather/tmp/xoffset");
|
|
var xedge = getprop("/local-weather/tmp/xedge");
|
|
var ny = getprop("/local-weather/tmp/ny");
|
|
var yoffset = getprop("/local-weather/tmp/yoffset");
|
|
var yedge = getprop("/local-weather/tmp/yedge");
|
|
var dir = getprop("/local-weather/tmp/dir");
|
|
var tri = getprop("/local-weather/tmp/tri");
|
|
var rnd_alt = getprop("/local-weather/tmp/rnd-alt");
|
|
var rnd_pos_x = getprop("/local-weather/tmp/rnd-pos-x");
|
|
var rnd_pos_y = getprop("/local-weather/tmp/rnd-pos-y");
|
|
|
|
create_streak(type,lat,lon,alt,nx,xoffset,xedge,ny,yoffset,yedge,dir,tri);
|
|
randomize_pos(type,rnd_alt,rnd_pos_x, rnd_pos_y, dir);
|
|
|
|
|
|
}
|
|
|
|
|
|
var convection_wrapper = func {
|
|
|
|
var lat = getprop("position/latitude-deg");
|
|
var lon = getprop("position/longitude-deg");
|
|
var alt = getprop("/local-weather/tmp/conv-alt");
|
|
var size = getprop("/local-weather/tmp/conv-size");
|
|
var strength = getprop("/local-weather/tmp/conv-strength");
|
|
|
|
var n = int(10 * size * size * strength);
|
|
create_cumosys(lat,lon,alt,n, size*1000.0);
|
|
|
|
}
|
|
|
|
var barrier_wrapper = func {
|
|
|
|
var lat = getprop("position/latitude-deg");
|
|
var lon = getprop("position/longitude-deg");
|
|
var alt = getprop("/local-weather/tmp/bar-alt");
|
|
var n = getprop("/local-weather/tmp/bar-n");
|
|
var dir = getprop("/local-weather/tmp/bar-dir");
|
|
var dist = getprop("/local-weather/tmp/bar-dist") * 1000.0;
|
|
var size = getprop("/local-weather/tmp/bar-size") * 1000.0;
|
|
|
|
create_rise_clouds(lat, lon, alt, n, size, dir, dist);
|
|
|
|
}
|
|
|
|
var single_cloud_wrapper = func {
|
|
|
|
var type = getprop("/local-weather/tmp/scloud-type");
|
|
var subtype = getprop("/local-weather/tmp/scloud-subtype");
|
|
var lat = getprop("/local-weather/tmp/scloud-lat");
|
|
var lon = getprop("/local-weather/tmp/scloud-lon");
|
|
var alt = getprop("/local-weather/tmp/scloud-alt");
|
|
var heading = getprop("/local-weather/tmp/scloud-dir");
|
|
|
|
var path = select_cloud_model(type,subtype);
|
|
|
|
create_cloud(type, path, lat, lon, alt, heading, 0);
|
|
|
|
}
|
|
|
|
var layer_wrapper = func {
|
|
|
|
var lat = getprop("position/latitude-deg");
|
|
var lon = getprop("position/longitude-deg");
|
|
var type = getprop(lw~"tmp/layer-type");
|
|
var rx = getprop(lw~"tmp/layer-rx") * 1000.0;
|
|
var ry = getprop(lw~"tmp/layer-ry") * 1000.0;
|
|
var phi = getprop(lw~"tmp/layer-phi");
|
|
var alt = getprop(lw~"tmp/layer-alt");
|
|
var thick = getprop(lw~"tmp/layer-thickness");
|
|
var density = getprop(lw~"tmp/layer-density");
|
|
var edge = getprop(lw~"tmp/layer-edge");
|
|
var rain_flag = getprop(lw~"tmp/layer-rain-flag");
|
|
var rain_density = getprop(lw~"tmp/layer-rain-density");
|
|
|
|
create_layer(type, lat, lon, alt, thick, rx, ry, phi, density, edge, rain_flag, rain_density);
|
|
|
|
}
|
|
|
|
|
|
####################################
|
|
# tile setup call wrapper
|
|
####################################
|
|
|
|
var set_tile = func {
|
|
|
|
var type = getprop("/local-weather/tmp/tile-type");
|
|
|
|
# set tile center coordinates to current position
|
|
|
|
setprop(lw~"tiles/tmp/latitude-deg",getprop("position/latitude-deg"));
|
|
setprop(lw~"tiles/tmp/longitude-deg",getprop("position/longitude-deg"));
|
|
|
|
weather_tile_management.create_neighbours(getprop("position/latitude-deg"),getprop("position/longitude-deg"),getprop(lw~"tmp/tile-orientation-deg"));
|
|
|
|
setprop(lw~"tiles/tile-counter",getprop(lw~"tiles/tile-counter")+1);
|
|
|
|
if (type == "High-pressure-core")
|
|
{weather_tiles.set_high_pressure_core_tile();}
|
|
else if (type == "High-pressure")
|
|
{weather_tiles.set_high_pressure_tile();}
|
|
else if (type == "High-pressure-border")
|
|
{weather_tiles.set_high_pressure_border_tile();}
|
|
else if (type == "Low-pressure-border")
|
|
{weather_tiles.set_low_pressure_border_tile();}
|
|
else if (type == "Low-pressure")
|
|
{weather_tiles.set_low_pressure_tile();}
|
|
else if (type == "Low-pressure-core")
|
|
{weather_tiles.set_low_pressure_core_tile();}
|
|
else if (type == "Altocumulus sky")
|
|
{weather_tiles.set_altocumulus_tile();setprop(lw~"tiles/code","altocumulus_sky");}
|
|
else if (type == "Broken layers")
|
|
{weather_tiles.set_broken_layers_tile();setprop(lw~"tiles/code","broken_layers");}
|
|
else if (type == "Cold front")
|
|
{weather_tiles.set_coldfront_tile();setprop(lw~"tiles/code","coldfront");}
|
|
else if (type == "Cirrus sky")
|
|
{weather_tiles.set_cirrus_sky_tile();setprop(lw~"tiles/code","cirrus_sky");}
|
|
else if (type == "Fair weather")
|
|
{setprop(lw~"tiles/code","cumulus_sky");weather_tiles.set_fair_weather_tile();}
|
|
else if (type == "Glider's sky")
|
|
{setprop(lw~"tiles/code","gliders_sky");weather_tiles.set_gliders_sky_tile();}
|
|
else if (type == "Blue thermals")
|
|
{setprop(lw~"tiles/code","blue_thermals");weather_tiles.set_blue_thermals_tile();}
|
|
else if (type == "Incoming rainfront")
|
|
{weather_tiles.set_rainfront_tile();setprop(lw~"tiles/code","rainfront");}
|
|
else if (type == "8/8 stratus sky")
|
|
{weather_tiles.set_overcast_stratus_tile();setprop(lw~"tiles/code","overcast_stratus");}
|
|
else if (type == "Test tile")
|
|
{weather_tiles.set_4_8_stratus_tile();setprop(lw~"tiles/code","test");}
|
|
else if (type == "Summer rain")
|
|
{weather_tiles.set_summer_rain_tile();setprop(lw~"tiles/code","summer_rain");}
|
|
else
|
|
{print("Tile not implemented.");setprop(lw~"tiles/tile-counter",getprop(lw~"tiles/tile-counter")-1);return();}
|
|
|
|
|
|
# start tile management loop if needed
|
|
|
|
if (getprop(lw~"tmp/tile-management") != "single tile") {
|
|
if (getprop(lw~"tile-loop-flag") == 0)
|
|
{setprop(lw~"tile-loop-flag",1); weather_tile_management.tile_management_loop();}
|
|
}
|
|
|
|
# start the interpolation loop
|
|
|
|
if (getprop(lw~"interpolation-loop-flag") == 0)
|
|
{setprop(lw~"interpolation-loop-flag",1); local_weather.interpolation_loop();}
|
|
|
|
# start the effect volume loop
|
|
|
|
if (getprop(lw~"effect-loop-flag") == 0)
|
|
{setprop(lw~"effect-loop-flag",1); local_weather.effect_volume_loop(0,0);}
|
|
|
|
}
|
|
|
|
|
|
#################################################
|
|
# Anything that needs to run at startup goes here
|
|
#################################################
|
|
|
|
var startup = func {
|
|
print("Loading local weather routines...");
|
|
|
|
var lat = getprop("position/latitude-deg");
|
|
var lon = getprop("position/longitude-deg");
|
|
calc_geo(lat);
|
|
|
|
# copy weather properties at startup to local weather
|
|
|
|
setprop(lw~"interpolation/visibility-m",getprop(ec~"boundary/entry[0]/visibility-m"));
|
|
setprop(lw~"interpolation/pressure-sea-level-inhg",getprop(ec~"boundary/entry[0]/pressure-sea-level-inhg"));
|
|
setprop(lw~"interpolation/temperature-degc",getprop(ec~"boundary/entry[0]/temperature-degc"));
|
|
setprop(lw~"interpolation/wind-from-heading-deg",getprop(ec~"boundary/entry[0]/wind-from-heading-deg"));
|
|
setprop(lw~"interpolation/wind-speed-kt",getprop(ec~"boundary/entry[0]/wind-speed-kt"));
|
|
|
|
setprop(lw~"interpolation/rain-norm",0.0);
|
|
setprop(lw~"interpolation/snow-norm",0.0);
|
|
setprop(lw~"interpolation/thermal-lift",0.0);
|
|
|
|
# before interpolation starts, these are also initially current
|
|
|
|
setprop(lw~"current/visibility-m",getprop(lwi~"visibility-m"));
|
|
setprop(lw~"current/pressure-sea-level-inhg",getprop(lw~"interpolation/pressure-sea-level-inhg"));
|
|
setprop(lw~"current/temperature-degc",getprop(lw~"interpolation/temperature-degc"));
|
|
setprop(lw~"current/wind-from-heading-deg",getprop(lw~"interpolation/wind-from-heading-deg"));
|
|
setprop(lw~"current/wind-speed-kt",getprop(lw~"interpolation/wind-speed-kt"));
|
|
|
|
setprop(lw~"current/rain-norm",getprop(lw~"interpolation/rain-norm"));
|
|
setprop(lw~"current/snow-norm",getprop(lw~"interpolation/snow-norm"));
|
|
setprop(lw~"current/thermal-lift",getprop(lw~"interpolation/thermal-lift"));
|
|
|
|
# try to set up a menu from Nasal
|
|
|
|
#setprop("/sim/menubar/default/menu[4]/item[8]/label","Test");
|
|
#setprop("/sim/menubar/default/menu[4]/item[8]/binding/command","dialog-show");
|
|
#setprop("/sim/menubar/default/menu[4]/item[8]/binding/dialog-name","local_weather_tiles");
|
|
#setprop("/sim/menubar/default/menu[4]/item[8]/enabled","true");
|
|
|
|
|
|
# set listener for worker threads
|
|
|
|
setlistener(lw~"tmp/thread-status", func {var s = size(clouds_type); cloud_placement_loop(s); });
|
|
setlistener(lw~"tmp/convective-status", func {var s = size(clouds_type); cloud_placement_loop(s); });
|
|
setlistener(lw~"tmp/effect-thread-status", func {var s = size(effects_geo); effect_placement_loop(s); });
|
|
setlistener(lw~"tmp/convective-status", func {var s = size(effects_geo); effect_placement_loop(s); });
|
|
}
|
|
|
|
|
|
#####################################################
|
|
# Standard test call (for development and debug only)
|
|
#####################################################
|
|
|
|
var test = func {
|
|
|
|
#var lat = getprop("position/latitude-deg");
|
|
#var lon = getprop("position/longitude-deg");
|
|
|
|
#create_layer("Nimbus", lat, lon, 3000.0, 500.0, 10000.0, 5000.0, 45.0, 1.0, 0.2,1,1.0);
|
|
#create_layer(type, lat, lon, alt, thick, rx, ry, phi, density, edge, rain_flag, rain_density);
|
|
|
|
thread.newthread(terrain_presampling);
|
|
|
|
#create_effect_volume(2, lat, lon, 9000.0, 4000.0, 45.0, 0.0, 3500.0, 1500, 0.4, -1, -1, -1, 0);
|
|
|
|
|
|
#if (getprop(lw~"effect-loop-flag") == 0)
|
|
#{setprop(lw~"effect-loop-flag",1); effect_volume_loop();}
|
|
|
|
}
|
|
|
|
#################################################################
|
|
# global variable, property creation and the startup listener
|
|
#################################################################
|
|
|
|
var rad_E = 6378138.12; # earth radius
|
|
var lat_to_m = 110952.0; # latitude degrees to meters
|
|
var m_to_lat = 9.01290648208234e-06; # meters to latitude degrees
|
|
var ft_to_m = 0.30480;
|
|
var m_to_ft = 1.0/ft_to_m;
|
|
|
|
var lon_to_m = 0.0; # needs to be calculated dynamically
|
|
var m_to_lon = 0.0; # we do this on startup
|
|
|
|
# some common abbreviations
|
|
|
|
var lw = "/local-weather/";
|
|
var lwi = "/local-weather/interpolation/";
|
|
var ec = "/environment/config/";
|
|
|
|
# a hash map of the strength for convection associated with terrain types
|
|
|
|
var landcover_map = {BuiltUpCover: 0.35, Town: 0.35, Freeway:0.35, BarrenCover:0.3, HerbTundraCover: 0.25, GrassCover: 0.2, CropGrassCover: 0.2, Sand: 0.25, Grass: 0.2, Ocean: 0.01, Marsh: 0.05, Lake: 0.01, ShrubCover: 0.15, Landmass: 0.2, CropWoodCover: 0.15, MixedForestCover: 0.1, DryCropPastureCover: 0.25, MixedCropPastureCover: 0.2, IrrCropPastureCover: 0.15, DeciduousBroadCover: 0.1, pa_taxiway : 0.35, pa_tiedown: 0.35, pc_taxiway: 0.35, pc_tiedown: 0.35, Glacier: 0.01, DryLake: 0.25, IntermittentStream: 0.2};
|
|
|
|
# a hash map of average vertical cloud model sizes
|
|
|
|
var cloud_vertical_size_map = {Altocumulus: 700.0, Cumulus: 600.0, Nimbus: 1000.0, Stratus: 800.0, Stratus_structured: 600.0, Stratus_thin: 400.0};
|
|
|
|
# storage arrays for cloud generation
|
|
|
|
clouds_type = [];
|
|
clouds_path = [];
|
|
clouds_lat = [];
|
|
clouds_lon = [];
|
|
clouds_alt = [];
|
|
clouds_orientation = [];
|
|
|
|
# storage arrays for effect volume generation
|
|
|
|
effects_geo = [];
|
|
effects_lat = [];
|
|
effects_lon = [];
|
|
effects_r1 = [];
|
|
effects_r2 = [];
|
|
effects_phi = [];
|
|
effects_alt_low = [];
|
|
effects_alt_high = [];
|
|
effects_vis = [];
|
|
effects_rain = [];
|
|
effects_snow = [];
|
|
effects_turb = [];
|
|
effects_lift = [];
|
|
effects_lift_flag = [];
|
|
|
|
|
|
|
|
# set all sorts of default properties for the menu
|
|
|
|
setprop(lw~"tmp/cloud-type", "Altocumulus");
|
|
setprop(lw~"tmp/alt", 12000.0);
|
|
setprop(lw~"tmp/nx",5);
|
|
setprop(lw~"tmp/xoffset",800.0);
|
|
setprop(lw~"tmp/xedge", 0.2);
|
|
setprop(lw~"tmp/ny",15);
|
|
setprop(lw~"tmp/yoffset",800.0);
|
|
setprop(lw~"tmp/yedge", 0.2);
|
|
setprop(lw~"tmp/dir",0.0);
|
|
setprop(lw~"tmp/tri", 1.0);
|
|
setprop(lw~"tmp/rnd-pos-x",400.0);
|
|
setprop(lw~"tmp/rnd-pos-y",400.0);
|
|
setprop(lw~"tmp/rnd-alt", 300.0);
|
|
setprop(lw~"tmp/conv-strength", 1);
|
|
setprop(lw~"tmp/conv-size", 15.0);
|
|
setprop(lw~"tmp/conv-alt", 2000.0);
|
|
setprop(lw~"tmp/bar-alt", 3500.0);
|
|
setprop(lw~"tmp/bar-n", 150.0);
|
|
setprop(lw~"tmp/bar-dir", 0.0);
|
|
setprop(lw~"tmp/bar-dist", 5.0);
|
|
setprop(lw~"tmp/bar-size", 10.0);
|
|
setprop(lw~"tmp/scloud-type", "Altocumulus");
|
|
setprop(lw~"tmp/scloud-subtype", "small");
|
|
setprop(lw~"tmp/scloud-lat",getprop("position/latitude-deg"));
|
|
setprop(lw~"tmp/scloud-lon",getprop("position/longitude-deg"));
|
|
setprop(lw~"tmp/scloud-alt", 5000.0);
|
|
setprop(lw~"tmp/scloud-dir", 0.0);
|
|
setprop(lw~"tmp/layer-type","Nimbus");
|
|
setprop(lw~"tmp/layer-rx",10.0);
|
|
setprop(lw~"tmp/layer-ry",10.0);
|
|
setprop(lw~"tmp/layer-phi",0.0);
|
|
setprop(lw~"tmp/layer-alt",3000.0);
|
|
setprop(lw~"tmp/layer-thickness",500.0);
|
|
setprop(lw~"tmp/layer-density",1.0);
|
|
setprop(lw~"tmp/layer-edge",0.2);
|
|
setprop(lw~"tmp/layer-rain-flag",1);
|
|
setprop(lw~"tmp/layer-rain-density",1.0);
|
|
setprop(lw~"tmp/tile-type", "High-pressure");
|
|
setprop(lw~"tmp/tile-orientation-deg", 0.0);
|
|
setprop(lw~"tmp/tile-alt-offset-ft", 0.0);
|
|
setprop(lw~"tmp/tile-management", "single tile");
|
|
setprop(lw~"tmp/generate-thermal-lift-flag", 0);
|
|
setprop(lw~"tmp/presampling-flag", 0);
|
|
setprop(lw~"tmp/asymmetric-tile-loading-flag", 0);
|
|
setprop(lw~"tmp/thread-flag", 0);
|
|
setprop(lw~"tmp/last-reading-pos-del",0);
|
|
setprop(lw~"tmp/last-reading-pos-mod",0);
|
|
setprop(lw~"tmp/thread-status", "idle");
|
|
setprop(lw~"tmp/convective-status", "idle");
|
|
|
|
# set config values
|
|
|
|
setprop(lw~"config/distance-to-load-tile-m",35000.0);
|
|
setprop(lw~"config/distance-to-remove-tile-m",37000.0);
|
|
setprop(lw~"config/detailed-clouds-flag",0);
|
|
|
|
|
|
# set the default loop flags to loops inactive
|
|
|
|
|
|
setprop(lw~"effect-loop-flag",0);
|
|
setprop(lw~"interpolation-loop-flag",0);
|
|
setprop(lw~"tile-loop-flag",0);
|
|
setprop(lw~"lift-loop-flag",0);
|
|
|
|
# create other management properties
|
|
|
|
setprop(lw~"clouds/cloud-number",0);
|
|
setprop(lw~"clouds/placement-index",0);
|
|
setprop(lw~"clouds/model-placement-index",0);
|
|
setprop(lw~"effect-volumes/effect-placement-index",0);
|
|
|
|
# create properties for effect volume management
|
|
|
|
setprop(lw~"effect-volumes/number",0);
|
|
setprop(lw~"effect-volumes/number-active-vis",0);
|
|
setprop(lw~"effect-volumes/number-active-rain",0);
|
|
setprop(lw~"effect-volumes/number-active-snow",0);
|
|
setprop(lw~"effect-volumes/number-active-turb",0);
|
|
setprop(lw~"effect-volumes/number-active-lift",0);
|
|
|
|
# create properties for tile management
|
|
|
|
setprop(lw~"tiles/tile-counter",0);
|
|
|
|
|
|
# wait for Nasal to be available and do what is in startup()
|
|
|
|
_setlistener("/sim/signals/nasal-dir-initialized", func {
|
|
startup();
|
|
});
|
|
|