Read and create airport light objects like PAPIs and calculate their light vectors.
This commit is contained in:
Christian Schmitt
parent
785c4afcda
commit
2eb8428a59
6 changed files with 113 additions and 116 deletions
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@ -290,6 +290,7 @@ void build_airport( string airport_id, float alt_m,
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string_list& beacons_raw,
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string_list& towers_raw,
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string_list& windsocks_raw,
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string_list& lights_raw,
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const string& root,
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const string_list& elev_src )
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{
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@ -316,7 +317,6 @@ void build_airport( string airport_id, float alt_m,
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// parse runways and generate the vertex list
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runway_list runways; runways.clear();
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runway_list taxiways; taxiways.clear();
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for ( i = 0; i < (int)runways_raw.size(); ++i ) {
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++rwy_count;
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@ -395,16 +395,6 @@ void build_airport( string airport_id, float alt_m,
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rwy.reil1 = atoi( token[16].c_str() );
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rwy.reil2 = atoi( token[25].c_str() );
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if (token.size()>15) {
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string vasi_angles = token[15];
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vector<string> vasis = simgear::strutils::split( vasi_angles, "." );
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rwy.gs_angle1 = atof( vasis[0].c_str() ) * 0.01;
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rwy.gs_angle2 = atof( vasis[1].c_str() ) * 0.01;
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} else {
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rwy.gs_angle1 = rwy.gs_angle2 = 3.0;
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}
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SG_LOG( SG_GENERAL, SG_DEBUG, " no1/2 = " << rwy.rwy_no1 << " " << rwy.rwy_no2);
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SG_LOG( SG_GENERAL, SG_DEBUG, " lat = " << rwy.lat);
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SG_LOG( SG_GENERAL, SG_DEBUG, " lon = " << rwy.lon);
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@ -422,7 +412,6 @@ void build_airport( string airport_id, float alt_m,
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runways.push_back( rwy );
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}
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SG_LOG(SG_GENERAL, SG_INFO, "Runway count = " << runways.size() );
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SG_LOG(SG_GENERAL, SG_INFO, "Taxiway count = " << taxiways.size() );
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SGBucket b( apt_lon / (double)rwy_count, apt_lat / (double)rwy_count );
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SG_LOG(SG_GENERAL, SG_INFO, b.gen_base_path() << "/" << b.gen_index_str());
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@ -492,6 +481,26 @@ void build_airport( string airport_id, float alt_m,
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}
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// parse all light objects (PAPI/VASI) etc.
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light_list lightobj; lightobj.clear();
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for ( i = 0; i < (int)lights_raw.size(); ++i ) {
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string light_str = lights_raw[i];
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vector<string> token = simgear::strutils::split( light_str );
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TGLightobj light;
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light.lat = atof( token[1].c_str() );
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light.lon = atof( token[2].c_str() );
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light.type = atoi( token[3].c_str() );
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light.heading = atof( token[4].c_str() );
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light.glideslope = atof( token[5].c_str() );
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light.rwy_name = token[6];
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lightobj.push_back( light );
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}
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//TODO: Clean up
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// First pass: generate the precision runways since these have
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// precidence
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for ( i = 0; i < (int)runways.size(); ++i ) {
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@ -536,17 +545,6 @@ void build_airport( string airport_id, float alt_m,
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}
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}
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// 4th pass: generate all taxiways
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/* Ralf Gerlich: Generate Taxiways in specified order from bottom to top */
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for ( i=0; i<taxiways.size(); ++i ) {
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SG_LOG( SG_GENERAL, SG_DEBUG, "generating " << i );
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build_runway( taxiways[i], alt_m,
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&rwy_polys, &texparams, &accum,
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&apt_base, &apt_clearing );
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taxiways[i].generated = true;
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}
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// Now generate small surface for each beacon
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TGPolygon obj_base, obj_safe_base;
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double obj_hdg = runways[0].heading;
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@ -588,11 +586,16 @@ void build_airport( string airport_id, float alt_m,
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gen_runway_lights( runways[i], alt_m, rwy_lights, &apt_base );
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}
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// 6th pass: generate all taxiway lights
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for ( i = 0; i < (int)taxiways.size(); ++i ) {
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gen_taxiway_lights( taxiways[i], alt_m, rwy_lights );
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//generate runway light objects
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for ( i = 0; i < (int)lightobj.size(); ++i ) {
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gen_airport_lightobj( lightobj[i], alt_m, rwy_lights );
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}
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// 6th pass: generate all taxiway lights
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//for ( i = 0; i < (int)taxiways.size(); ++i ) {
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// gen_taxiway_lights( taxiways[i], alt_m, rwy_lights );
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//}
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// write_polygon( accum, "accum" );
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// write_polygon( apt_base, "base" );
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// write_polygon( apt_clearing, "clear" );
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@ -39,6 +39,7 @@ void build_airport( string airport_id, float alt_m,
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string_list& beacons_raw,
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string_list& towers_raw,
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string_list& windsocks_raw,
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string_list& lights_raw,
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const string& root,
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const string_list& elev_src );
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@ -683,9 +683,9 @@ static TGSuperPoly gen_touchdown_zone_lights( const TGRunway& rwy_info,
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return result;
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}
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/*
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// generate a simple 2 bar VASI
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static TGSuperPoly gen_vasi( const TGRunway& rwy_info, float alt_m,
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static TGSuperPoly gen_vasi( const TGLightobj& rwy_light, float alt_m,
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bool recip, TGPolygon *apt_base )
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{
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point_list lights; lights.clear();
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@ -847,110 +847,103 @@ static TGSuperPoly gen_vasi( const TGRunway& rwy_info, float alt_m,
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result.set_flag( flag );
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return result;
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}
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*/
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// generate a simple PAPI
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static TGSuperPoly gen_papi( const TGRunway& rwy_info, float alt_m,
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bool recip, TGPolygon *apt_base )
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// Generate the airports light objects (PAPI/VASI)
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void gen_airport_lightobj( const TGLightobj& rwy_light, float alt_m, superpoly_list &lights )
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{
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point_list lights; lights.clear();
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point_list lightobj; lightobj.clear();
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point_list normals; normals.clear();
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int i;
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string flag;
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double gs_angle = 3.0;
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cout << "gen papi " << rwy_info.rwy_no1 << endl;
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cout << "gen papi " << rwy_light.rwy_name << endl;
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Point3D normal;
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// using TGPolygon is a bit innefficient, but that's what the
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// routine returns.
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TGPolygon poly_corners
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= gen_runway_area_w_extend( rwy_info, 0.0, 0.0,
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rwy_info.disp_thresh1,
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rwy_info.disp_thresh2,
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0.0 );
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point_list corner;
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for ( i = 0; i < poly_corners.contour_size( 0 ); ++i ) {
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corner.push_back( poly_corners.get_pt( 0, i ) );
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}
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// determine the start point.
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Point3D ref;
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double length_hdg, left_hdg;
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double lon, lat, r;
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if ( recip ) {
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ref = corner[0];
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length_hdg = rwy_info.heading + 180.0;
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if ( length_hdg > 360.0 ) { length_hdg -= 360.0; }
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flag = rwy_info.rwy_no1 + "-i";
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gs_angle = rwy_info.gs_angle1;
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} else {
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ref = corner[2];
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length_hdg = rwy_info.heading;
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flag = rwy_info.rwy_no1;
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gs_angle = rwy_info.gs_angle2;
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}
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double gs_angle = rwy_light.glideslope;
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double left_hdg = rwy_light.heading - 90.0;
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ref.setlat( rwy_light.lat );
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ref.setlon( rwy_light.lon );
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left_hdg = length_hdg - 90.0;
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if ( left_hdg < 0 ) { left_hdg += 360.0; }
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cout << "length hdg = " << length_hdg
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<< " left heading = " << left_hdg << endl;
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if ( gs_angle < 0.5 ) {
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gs_angle = 3.0;
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}
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// offset 950' upwind
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geo_direct_wgs_84 ( alt_m, ref.lat(), ref.lon(), length_hdg,
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950 * SG_FEET_TO_METER, &lat, &lon, &r );
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ref = Point3D( lon, lat, 0.0 );
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// offset 50' left
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geo_direct_wgs_84 ( alt_m, ref.lat(), ref.lon(), left_hdg,
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50 * SG_FEET_TO_METER, &lat, &lon, &r );
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ref = Point3D( lon, lat, 0.0 );
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// Calculate the normal once for all object parts.
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// SG takes care of the angle.
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// calculate a second point in the object heading direction
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geo_direct_wgs_84 ( rwy_light.lat, rwy_light.lon, rwy_light.heading,
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100, &lat, &lon, &r);
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Point3D end1, end2;
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end1.setlat( lat );
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end1.setlon( lon );
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end2.setlat( rwy_light.lat);
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end2.setlon( rwy_light.lon);
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Point3D cart1 = sgGeodToCart( end1 * SG_DEGREES_TO_RADIANS );
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Point3D cart2 = sgGeodToCart( end2 * SG_DEGREES_TO_RADIANS );
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Point3D up = cart1;
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double length = up.distance3D( Point3D(0.0) );
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up = up / length;
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Point3D obj_vec = cart2 - cart1;
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// angle up specified amount
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length = obj_vec.distance3D( Point3D(0.0) );
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double up_length = length * tan( rwy_light.glideslope * SG_DEGREES_TO_RADIANS);
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Point3D light_vec = obj_vec + (up * up_length);
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length = light_vec.distance3D( Point3D(0.0) );
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Point3D normal = light_vec / length;
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SG_LOG(SG_GENERAL, SG_DEBUG, "obj_normal = " << normal);
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// We know our normal, now create the lights
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// unit1
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Point3D pt1 = ref;
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lights.push_back( pt1 );
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normal = gen_runway_light_vector( rwy_info, gs_angle + 0.5, recip );
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lightobj.push_back( pt1 );
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normals.push_back( normal );
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// unit2
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geo_direct_wgs_84 ( alt_m, pt1.lat(), pt1.lon(), left_hdg,
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30 * SG_FEET_TO_METER, &lat, &lon, &r );
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pt1 = Point3D( lon, lat, 0.0 );
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lights.push_back( pt1 );
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normal = gen_runway_light_vector( rwy_info, gs_angle + 0.167, recip );
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lightobj.push_back( pt1 );
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normals.push_back( normal );
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// unit3
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geo_direct_wgs_84 ( alt_m, pt1.lat(), pt1.lon(), left_hdg,
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30 * SG_FEET_TO_METER, &lat, &lon, &r );
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pt1 = Point3D( lon, lat, 0.0 );
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lights.push_back( pt1 );
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normal = gen_runway_light_vector( rwy_info, gs_angle - 0.167, recip );
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lightobj.push_back( pt1 );
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normals.push_back( normal );
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// unit4
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geo_direct_wgs_84 ( alt_m, pt1.lat(), pt1.lon(), left_hdg,
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30 * SG_FEET_TO_METER, &lat, &lon, &r );
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pt1 = Point3D( lon, lat, 0.0 );
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lights.push_back( pt1 );
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normal = gen_runway_light_vector( rwy_info, gs_angle - 0.5, recip );
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lightobj.push_back( pt1 );
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normals.push_back( normal );
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// grass base
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/* // grass base
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Point3D base_pt = (ref + pt1) / 2.0;
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TGPolygon obj_base = gen_wgs84_area( base_pt, 15.0, 0.0, 0.0, 30.0,
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length_hdg, alt_m, false );
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*apt_base = tgPolygonUnion( obj_base, *apt_base );
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*apt_base = tgPolygonUnion( obj_base, *apt_base );*/
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TGPolygon lights_poly; lights_poly.erase();
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TGPolygon normals_poly; normals_poly.erase();
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lights_poly.add_contour( lights, false );
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lights_poly.add_contour( lightobj, false );
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normals_poly.add_contour( normals, false );
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TGSuperPoly result;
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@ -958,9 +951,7 @@ static TGSuperPoly gen_papi( const TGRunway& rwy_info, float alt_m,
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result.set_normals( normals_poly );
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result.set_material( "RWY_VASI_LIGHTS" );
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result.set_flag( flag );
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return result;
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lights.push_back( result);
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}
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@ -2667,23 +2658,8 @@ void gen_runway_lights( const TGRunway& rwy_info, float alt_m,
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TGSuperPoly s = gen_reil( rwy_info, alt_m, true );
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lights.push_back( s );
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}
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#if 0
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// VASI/PAPI lighting
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if ( vasi1 == 2 /* Has VASI */ ) {
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TGSuperPoly s = gen_vasi( rwy_info, alt_m, false, apt_base );
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lights.push_back( s );
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} else if ( vasi1 == 3 /* Has PAPI */ ) {
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TGSuperPoly s = gen_papi( rwy_info, alt_m, false, apt_base );
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lights.push_back( s );
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}
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if ( vasi2 == 2 /* Has VASI */ ) {
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TGSuperPoly s = gen_vasi( rwy_info, alt_m, true, apt_base );
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lights.push_back( s );
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} else if ( vasi2 == 3 /* Has PAPI */ ) {
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TGSuperPoly s = gen_papi( rwy_info, alt_m, true, apt_base );
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lights.push_back( s );
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}
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#endif
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// Approach lighting
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////////////////////////////////////////////////////////////
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@ -41,4 +41,7 @@ void gen_runway_lights( const TGRunway& rwy_info, float alt_m,
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void gen_taxiway_lights( const TGRunway& taxiway_info, float alt_m,
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superpoly_list &lights );
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// generate light objects
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void gen_airport_lightobj( const TGLightobj& rwy_light, float alt_m, superpoly_list &lights );
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#endif // _RWY_LIGHTS_HXX
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@ -251,6 +251,7 @@ int main( int argc, char **argv ) {
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string_list beacon_list;
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string_list tower_list;
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string_list windsock_list;
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string_list light_list;
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vector<string> token;
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string last_apt_id = "";
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@ -335,6 +336,7 @@ int main( int argc, char **argv ) {
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beacon_list,
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tower_list,
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windsock_list,
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light_list,
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work_dir, elev_src );
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}
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}
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@ -367,6 +369,7 @@ int main( int argc, char **argv ) {
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beacon_list.clear();
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tower_list.clear();
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windsock_list.clear();
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light_list.clear();
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} else if ( token[0] == "100" ) {
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// runway entry
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runways_list.push_back(line);
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@ -380,7 +383,8 @@ int main( int argc, char **argv ) {
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// windsock entry
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windsock_list.push_back(line);
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} else if ( token[0] == "21" ) {
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// light object
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// PAPI / VASI list
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light_list.push_back(line);
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} else if ( token[0] == "15" ) {
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// ignore custom startup locations
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} else if ( token[0] == "50" || token[0] == "51" || token[0] == "52"
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@ -439,6 +443,7 @@ int main( int argc, char **argv ) {
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beacon_list,
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tower_list,
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windsock_list,
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light_list,
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work_dir, elev_src );
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}
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}
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@ -64,9 +64,6 @@ struct TGRunway {
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bool dist_remaining;
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double gs_angle1;
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double gs_angle2;
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TGPolygon threshold;
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TGPolygon tens, tens_margin, ones, ones_margin;
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TGPolygon letter, letter_margin_left, letter_margin_right;
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@ -75,12 +72,24 @@ struct TGRunway {
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TGPolygon aim_point;
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bool generated;
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};
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typedef std::vector < TGRunway > runway_list;
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typedef runway_list::iterator runway_list_iterator;
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typedef runway_list::const_iterator const_runway_list_iterator;
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struct TGLightobj {
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double lon;
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double lat;
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int type;
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double heading;
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double glideslope;
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std::string rwy_name;
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};
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typedef std::vector < TGLightobj > light_list;
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typedef light_list::iterator light_list_iterator;
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typedef light_list::const_iterator const_light_list_iterator;
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// given a runway center point, length, width, and heading, and
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// altitude (meters) generate the lon and lat 4 corners using wgs84
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