fly/terragear
1
0
Fork 0
Code Activity

Add a skirt around airport as a first line defense against pixel

Browse source 
wide border gaps.
This commit is contained in:
curt 2002-02-25 15:22:32 +00:00
parent 2a068e31e8
commit c5f9e48267
1 changed files with 52 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

65
src/Airports/GenAirports/build.cxx
View file

@ -546,7 +546,7 @@ void build_airport( string airport_raw, string_list& runways_raw,
for ( i = 0; i < (int)taxiways.size(); ++i ) {
build_runway( taxiways[i], &rwy_polys, &texparams, &accum, &apt_base );
}
write_polygon( accum, "accum" );
// write_polygon( accum, "accum" );
if ( apt_base.total_size() == 0 ) {
cout << "no airport points generated" << endl;
@ -562,11 +562,11 @@ void build_airport( string airport_raw, string_list& runways_raw,
// FGPolygon hull = convex_hull(apt_pts);
FGPolygon filled_base = strip_out_holes( apt_base );
write_polygon( filled_base, "filled-base" );
// write_polygon( filled_base, "filled-base" );
FGPolygon divided_base = split_long_edges( filled_base, 200.0 );
write_polygon( divided_base, "divided-base" );
// write_polygon( divided_base, "divided-base" );
FGPolygon base_poly = polygon_diff( divided_base, accum );
write_polygon( base_poly, "base-raw" );
// write_polygon( base_poly, "base-raw" );
// Try to remove duplicated nodes and other degeneracies
for ( k = 0; k < (int)rwy_polys.size(); ++k ) {
@ -821,29 +821,68 @@ void build_airport( string airport_raw, string_list& runways_raw,
point_list geod_nodes = calc_elevations( root, nodes.get_node_list() );
cout << "Done with calc_elevations()" << endl;
#if 0 // testing
// #if 0 // testing
// add base skirt (to hide potential cracks)
//
// this has to happen after we've calculated the node elevations
// but before we convert to wgs84 coordinates
int uindex, lindex;
for ( i = 0; i < divided_base.contours(); ++i ) {
strip_v.clear();
strip_tc.clear();
for ( j = 0; j < divided_base.contour_size(i); ++j ) {
// prime the pump ...
p = divided_base.get_pt( i, 0 );
uindex = nodes.find( p );
if ( uindex >= 0 ) {
Point3D lower = geod_nodes[uindex] - Point3D(0, 0, 20);
cout << geod_nodes[uindex] << " <-> " << lower << endl;
lindex = nodes.simple_add( lower );
geod_nodes.push_back( lower );
strip_v.push_back( uindex );
strip_v.push_back( lindex );
} else {
cout << "Ooops missing node when building skirt ... dying!"
<< endl;
exit(-1);
}
// loop through the list
for ( j = 1; j < divided_base.contour_size(i); ++j ) {
p = divided_base.get_pt( i, j );
index = nodes.find( p );
if ( index >= 0 ) {
strip_v.push_back( index );
Point3D lower = geod_nodes[index] - Point3D(0, 0, 20);
index = nodes.unique_add_3d( lower );
strip_v.push_back( index );
uindex = nodes.find( p );
if ( uindex >= 0 ) {
Point3D lower = geod_nodes[uindex] - Point3D(0, 0, 20);
cout << geod_nodes[uindex] << " <-> " << lower << endl;
lindex = nodes.simple_add( lower );
geod_nodes.push_back( lower );
strip_v.push_back( lindex );
strip_v.push_back( uindex );
} else {
cout << "Ooops missing node when building skirt ... dying!"
<< endl;
exit(-1);
}
}
// close off the loop
p = divided_base.get_pt( i, 0 );
uindex = nodes.find( p );
if ( uindex >= 0 ) {
Point3D lower = geod_nodes[uindex] - Point3D(0, 0, 20);
cout << geod_nodes[uindex] << " <-> " << lower << endl;
lindex = nodes.simple_add( lower );
geod_nodes.push_back( lower );
strip_v.push_back( lindex );
strip_v.push_back( uindex );
} else {
cout << "Ooops missing node when building skirt ... dying!"
<< endl;
exit(-1);
}
strips_v.push_back( strip_v );
strip_materials.push_back( "Grass" );
@ -860,7 +899,7 @@ void build_airport( string airport_raw, string_list& runways_raw,
strips_tc.push_back( base_tc );
}
#endif
// #endif
// calculate wgs84 mapping of nodes
point_list wgs84_nodes;