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fgdata/Nasal/earthview.nas

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###########################################################
# Earthview orbital rendering
###########################################################
var start = func() {
if (earthview_running_flag ==1) {return;}
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earthview_running_flag = 1;
var lat = getprop("/position/latitude-deg");
var lon = getprop("/position/longitude-deg");
# define the tile centers
center_N1 = geo.Coord.new();
center_N2 = geo.Coord.new();
center_N3 = geo.Coord.new();
center_N4 = geo.Coord.new();
center_S1 = geo.Coord.new();
center_S2 = geo.Coord.new();
center_S3 = geo.Coord.new();
center_S4 = geo.Coord.new();
center_N1.set_latlon(45.0, -135.0);
center_N2.set_latlon(45.0, -45.0);
center_N3.set_latlon(45.0, 45.0);
center_N4.set_latlon(45.0, 135.0);
center_S1.set_latlon(-45.0, -135.0);
center_S2.set_latlon(-45.0, -45.0);
center_S3.set_latlon(-45.0, 45.0);
center_S4.set_latlon(-45.0, 135.0);
# determine which tiles to show
var shuttle_pos = geo.aircraft_position();
if (0==1){
print(shuttle_pos.distance_to(center_N1)/1000.0);
print(shuttle_pos.distance_to(center_N2)/1000.0);
print(shuttle_pos.distance_to(center_N3)/1000.0);
print(shuttle_pos.distance_to(center_N4)/1000.0);
print(shuttle_pos.distance_to(center_S1)/1000.0);
print(shuttle_pos.distance_to(center_S2)/1000.0);
print(shuttle_pos.distance_to(center_S3)/1000.0);
print(shuttle_pos.distance_to(center_S4)/1000.0);
}
setprop("/earthview/show-n1", 0);
setprop("/earthview/show-n2", 0);
setprop("/earthview/show-n3", 0);
setprop("/earthview/show-n4", 0);
setprop("/earthview/show-s1", 0);
setprop("/earthview/show-s2", 0);
setprop("/earthview/show-s3", 0);
setprop("/earthview/show-s4", 0);
aurora_model.node = earthview.place_earth_model("Models/Astro/aurora.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
# set Basic Weather off
props.globals.getNode("/environment/config/enabled").setBoolValue(0);
props.globals.getNode("/environment/params/metar-updates-environment").setBoolValue(0);
# set some reasonable defaults
setprop("/environment/visibility-m", 80000.0);
setprop("/sim/rendering/mie", 0.0);
setprop("/sim/rendering/rayleigh", 0.00002);
setprop("/sim/rendering/dome-density", 1.0);
setprop("/earthview/shade-effect", 1.5);
earth_model.l1 = setlistener("/earthview/show-n1", func(n) {load_sector (1, n);},0,0);
earth_model.l2 = setlistener("/earthview/show-n2", func(n) {load_sector (2, n);},0,0);
earth_model.l3 = setlistener("/earthview/show-n3", func(n) {load_sector (3, n);},0,0);
earth_model.l4 = setlistener("/earthview/show-n4", func(n) {load_sector (4, n);},0,0);
earth_model.l5 = setlistener("/earthview/show-s1", func(n) {load_sector (5, n);},0,0);
earth_model.l6 = setlistener("/earthview/show-s2", func(n) {load_sector (6, n);},0,0);
earth_model.l7 = setlistener("/earthview/show-s3", func(n) {load_sector (7, n);},0,0);
earth_model.l8 = setlistener("/earthview/show-s4", func(n) {load_sector (8, n);},0,0);
control_loop();
}
var stop = func () {
#earth_model.node.remove();
#cloudsphere_model.node.remove();
aurora_model.node.remove();
setprop("/earthview/control_loop_flag",0);
# unload tiles not loaded via listeners
if (cloudsphere_rotated_flag == 1)
{clear_cloud_tiles();}
# unlock rotation flag to allow downloading of distance-managed tiles
cloudsphere_rotated_flag = 0;
setprop("/earthview/cloudsphere-angle",0.0);
setprop("/earthview/show-n1", 0);
setprop("/earthview/show-n2", 0);
setprop("/earthview/show-n3", 0);
setprop("/earthview/show-n4", 0);
setprop("/earthview/show-s1", 0);
setprop("/earthview/show-s2", 0);
setprop("/earthview/show-s3", 0);
setprop("/earthview/show-s4", 0);
settimer( func {
removelistener(earth_model.l1);
removelistener(earth_model.l2);
removelistener(earth_model.l3);
removelistener(earth_model.l4);
removelistener(earth_model.l5);
removelistener(earth_model.l6);
removelistener(earth_model.l7);
removelistener(earth_model.l8);
}, 1.0);
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earthview_running_flag = 0;
}
var place_earth_model = func(path, lat, lon, alt, heading, pitch, roll) {
var m = props.globals.getNode("models", 1);
for (var i = 0; 1; i += 1)
if (m.getChild("model", i, 0) == nil)
break;
var model = m.getChild("model", i, 1);
var R1 = 5800000.0;
var R2 = 58000.0;
var altitude1 = getprop("/position/altitude-ft");
var altitude2 = R2/R1 * altitude1;
var model_alt = altitude1 - altitude2 - R2 * m_to_ft;
setprop("/earthview/latitude-deg", lat);
setprop("/earthview/longitude-deg", lon);
setprop("/earthview/elevation-ft", model_alt);
setprop("/earthview/heading-deg", heading);
setprop("/earthview/pitch-deg", pitch);
setprop("/earthview/roll-deg", roll);
setprop("/earthview/yaw-deg", 0.0);
var eview = props.globals.getNode("earthview", 1);
var latN = eview.getNode("latitude-deg",1);
var lonN = eview.getNode("longitude-deg",1);
var altN = eview.getNode("elevation-ft",1);
var headN = eview.getNode("heading-deg",1);
var pitchN = eview.getNode("pitch-deg",1);
var rollN = eview.getNode("roll-deg",1);
model.getNode("path", 1).setValue(path);
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(headN.getPath());
model.getNode("pitch-deg-prop", 1).setValue(pitchN.getPath());
model.getNode("roll-deg-prop", 1).setValue(rollN.getPath());
model.getNode("load", 1).remove();
setprop("/earthview/heading-deg",90);
setprop("/earthview/control_loop_flag",1);
return model;
}
var control_loop = func {
if (earthview_running_flag == 0) {return;}
var R1 = 5800000.0;
var R2 = 58000.0;
var range_base = 7000000;
var altitude1 = getprop("/position/altitude-ft");
var altitude2 = R2/R1 * altitude1;
var model_alt = altitude1 - altitude2 - R2 * m_to_ft;
var horizon = math.sqrt(2.0 * R1 * altitude1 * ft_to_m );
if (horizon > 5000000.0) {horizon = 5000000.0;}
setprop("/earthview/horizon-km", horizon/1000.0);
setprop("/earthview/elevation-ft", model_alt);
var lat = getprop("/position/latitude-deg");
var lon = getprop("/position/longitude-deg");
setprop("/earthview/latitude-deg", lat);
setprop("/earthview/longitude-deg", lon);
setprop("/earthview/roll-deg", -(90-lat));
setprop("/earthview/yaw-deg", -lon);
var shuttle_pos = geo.aircraft_position();
if (shuttle_pos.distance_to(center_N1) > range_base + horizon)
{setprop("/earthview/show-n1", 0);}
else {setprop("/earthview/show-n1", 1);}
if (shuttle_pos.distance_to(center_N2) > range_base + horizon)
{setprop("/earthview/show-n2", 0);}
else {setprop("/earthview/show-n2", 1);}
if (shuttle_pos.distance_to(center_N3) > range_base + horizon)
{setprop("/earthview/show-n3", 0);}
else {setprop("/earthview/show-n3", 1);}
if (shuttle_pos.distance_to(center_N4) > range_base + horizon)
{setprop("/earthview/show-n4", 0);}
else {setprop("/earthview/show-n4", 1);}
if (shuttle_pos.distance_to(center_S1) > range_base + horizon)
{setprop("/earthview/show-s1", 0);}
else {setprop("/earthview/show-s1", 1);}
if (shuttle_pos.distance_to(center_S2) > range_base + horizon)
{setprop("/earthview/show-s2", 0);}
else {setprop("/earthview/show-s2", 1);}
if (shuttle_pos.distance_to(center_S3) > range_base + horizon)
{setprop("/earthview/show-s3", 0);}
else {setprop("/earthview/show-s3", 1);}
if (shuttle_pos.distance_to(center_S4) > range_base + horizon)
{setprop("/earthview/show-s4", 0);}
else {setprop("/earthview/show-s4", 1);}
# now set scattering paramaters
if (getprop("/earthview/mrd-flag") == 1)
{
var rayleigh = 0.0002;
var mie = 0.001;
var density = 1.0;
if (altitude1 < 300000.0)
{
setprop("/sim/rendering/rayleigh",rayleigh);
setprop("/sim/rendering/mie",mie);
setprop("/sim/rendering/dome-density",density);
}
else if (altitude1 < 650000.0)
{
rayleigh = rayleigh - 0.00018 * (altitude1-300000.0)/350000.0;
mie = mie - 0.001 * (altitude1-300000.0)/350000.0;
density = 1.0;
setprop("/sim/rendering/rayleigh",rayleigh);
setprop("/sim/rendering/mie",mie);
setprop("/sim/rendering/dome-density",density);
}
else
{
rayleigh = 0.00002;
mie = 0.0;
density = 1.0;
setprop("/sim/rendering/rayleigh",rayleigh);
setprop("/sim/rendering/mie",mie);
setprop("/sim/rendering/dome-density",density);
}
}
if (getprop("/earthview/control_loop_flag") ==1) {settimer( func {control_loop(); },0);}
}
# rotate position of cloud tiles
var adjust_cloud_tiles = func {
# we need to load all cloud tiles if we want to rotate the cloudsphere
if (getprop("/earthview/cloudsphere-angle") > 0.0)
{
if (cloudsphere_rotated_flag == 0)
{
var lat = getprop("/position/latitude-deg");
var lon = getprop("/position/longitude-deg");
if (getprop("/earthview/show-n1") == 0)
{cloudsphere_model.node1 = place_earth_model("Models/Astro/clouds_N1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-n2") == 0)
{cloudsphere_model.node2 = place_earth_model("Models/Astro/clouds_N2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-n3") == 0)
{cloudsphere_model.node3 = place_earth_model("Models/Astro/clouds_N3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-n4") == 0)
{cloudsphere_model.node4 = place_earth_model("Models/Astro/clouds_N4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-s1") == 0)
{cloudsphere_model.node5 = place_earth_model("Models/Astro/clouds_S1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-s2") == 0)
{cloudsphere_model.node6 = place_earth_model("Models/Astro/clouds_S2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-s3") == 0)
{cloudsphere_model.node7 = place_earth_model("Models/Astro/clouds_S3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
if (getprop("/earthview/show-s4") == 0)
{cloudsphere_model.node8 = place_earth_model("Models/Astro/clouds_S4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
cloudsphere_rotated_flag = 1;
}
}
else
{
clear_cloud_tiles();
cloudsphere_rotated_flag = 0;
}
}
var clear_cloud_tiles = func {
if (getprop("/earthview/show-n1") == 0)
{cloudsphere_model.node1.remove();}
if (getprop("/earthview/show-n2") == 0)
{cloudsphere_model.node2.remove();}
if (getprop("/earthview/show-n3") == 0)
{cloudsphere_model.node3.remove();}
if (getprop("/earthview/show-n4") == 0)
{cloudsphere_model.node4.remove();}
if (getprop("/earthview/show-s1") == 0)
{cloudsphere_model.node5.remove();}
if (getprop("/earthview/show-s2") == 0)
{cloudsphere_model.node6.remove();}
if (getprop("/earthview/show-s3") == 0)
{cloudsphere_model.node7.remove();}
if (getprop("/earthview/show-s4") == 0)
{cloudsphere_model.node8.remove();}
}
# load of individual tile
var load_sector = func (i, n) {
var action = n.getValue();
if (action)
{
var lat = getprop("/position/latitude-deg");
var lon = getprop("/position/longitude-deg");
if (i==1)
{
earth_model.node1 = place_earth_model("Models/Astro/earth_N1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node1 = place_earth_model("Models/Astro/clouds_N1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==2)
{
earth_model.node2 = place_earth_model("Models/Astro/earth_N2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node2 = place_earth_model("Models/Astro/clouds_N2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==3)
{
earth_model.node3 = place_earth_model("Models/Astro/earth_N3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
cloudsphere_model.node3 = place_earth_model("Models/Astro/clouds_N3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
}
else if (i==4)
{
earth_model.node4 = place_earth_model("Models/Astro/earth_N4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node4 = place_earth_model("Models/Astro/clouds_N4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==5)
{
earth_model.node5 = place_earth_model("Models/Astro/earth_S1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node5 = place_earth_model("Models/Astro/clouds_S1.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==6)
{
earth_model.node6 = place_earth_model("Models/Astro/earth_S2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node6 = place_earth_model("Models/Astro/clouds_S2.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==7)
{
earth_model.node7 = place_earth_model("Models/Astro/earth_S3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node7 = place_earth_model("Models/Astro/clouds_S3.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
else if (i==8)
{
earth_model.node8 = place_earth_model("Models/Astro/earth_S4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node8 = place_earth_model("Models/Astro/clouds_S4.xml",lat, lon, 0.0, 0.0, 0.0, 0.0);}
}
}
else
{
if (i==1)
{
earth_model.node1.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node1.remove();}
}
else if (i==2)
{
earth_model.node2.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node2.remove();}
}
else if (i==3)
{
earth_model.node3.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node3.remove();}
}
else if (i==4)
{
earth_model.node4.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node4.remove();}
}
else if (i==5)
{
earth_model.node5.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node5.remove();}
}
else if (i==6)
{
earth_model.node6.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node6.remove();}
}
else if (i==7)
{
earth_model.node7.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node7.remove();}
}
else if (i==8)
{
earth_model.node8.remove();
if (cloudsphere_rotated_flag == 0)
{cloudsphere_model.node8.remove();}
}
}
}
var ft_to_m = 0.30480;
var m_to_ft = 1.0/ft_to_m;
var earth_model = {};
var cloudsphere_model = {};
var aurora_model = {};
var earthview_running_flag = 0;
var cloudsphere_rotated_flag = 0;
var center_N1 = {};
var center_N2 = {};
var center_N3 = {};
var center_N4 = {};
var center_S1 = {};
var center_S2 = {};
var center_S3 = {};
var center_S4 = {};