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Convert runway edge lights to SGGeod

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This commit is contained in:
Christian Schmitt 2012-10-19 10:00:27 +02:00
parent 2dd32d2839
commit 7d7d4e41a6
1 changed files with 26 additions and 31 deletions
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57
src/Airports/GenAirports850/lights.cxx
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@ -81,62 +81,58 @@ superpoly_list Runway::gen_runway_edge_lights( bool recip )
point_list y_normals; y_normals.clear();
int i;
double length_hdg;
double dist = rwy.length - rwy.threshold[0] - rwy.threshold[1];
int divs = (int)(dist / 60.0) + 1;
double step = dist / divs;
SGGeod pt1, pt2;
Point3D normal = gen_runway_light_vector( 3.0, recip );
point_list corner = gen_corners(2.0, rwy.threshold[0], rwy.threshold[1], 2.0);
Point3D inc1, inc2;
Point3D pt1, pt2;
if ( recip ) {
inc1 = (corner[3] - corner[0]) / divs;
inc2 = (corner[2] - corner[1]) / divs;
pt1 = corner[0];
pt2 = corner[1];
length_hdg = rwy.heading + 180.0;
if ( length_hdg > 360.0 ) { length_hdg -= 360.0; }
pt1 = SGGeodesy::direct(GetEnd(), length_hdg, rwy.threshold[get_thresh0(recip)]);
pt2 = GetStart();
} else {
inc1 = (corner[0] - corner[3]) / divs;
inc2 = (corner[1] - corner[2]) / divs;
pt1 = corner[3];
pt2 = corner[2];
length_hdg = rwy.heading;
pt1 = SGGeodesy::direct(GetStart(), length_hdg, rwy.threshold[get_thresh0(recip)]);
pt2 = GetEnd();
}
double left_hdg = length_hdg - 90.0;
if ( left_hdg < 0 ) { left_hdg += 360.0; }
Point3D thresh1 = pt1;
Point3D thresh2 = pt2;
int tstep;
double offset = 2 + rwy.width * 0.5;
//front threshold
if (rwy.threshold[get_thresh0(recip)] > step )
{
SGGeod pt0 = pt1;
tstep = (int)(rwy.threshold[get_thresh0(recip)] / step);
for ( i = 0; i < tstep; ++i ) {
thresh1 -= inc1;
thresh2 -= inc2;
r_lights.push_back( thresh1 );
pt0 = SGGeodesy::direct(pt0, length_hdg, -step);
r_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt0, left_hdg, offset)) );
r_normals.push_back( normal );
r_lights.push_back( thresh2 );
r_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt0, left_hdg, -offset)) );
r_normals.push_back( normal );
}
}
dist -= step;
for ( i = 0; i < divs; ++i ) {
pt1 += inc1;
pt2 += inc2;
pt1 = SGGeodesy::direct(pt1, SGGeodesy::courseDeg(pt1, pt2), step);
dist -= step;
if ( dist > 610.0 || dist > rwy.length / 2 ) {
w_lights.push_back( pt1 );
w_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, offset)) );
w_normals.push_back( normal );
w_lights.push_back( pt2 );
w_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, -offset)) );
w_normals.push_back( normal );
} else if (dist > 5) {
y_lights.push_back( pt1 );
} else if (dist > 5.0) {
y_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, offset)) );
y_normals.push_back( normal );
y_lights.push_back( pt2 );
y_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, -offset)) );
y_normals.push_back( normal );
}
dist -= step;
}
//back threshold
@ -144,12 +140,11 @@ superpoly_list Runway::gen_runway_edge_lights( bool recip )
{
tstep = (int)(rwy.threshold[get_thresh1(recip)] / step);
for ( i = 0; i < tstep; ++i ) {
y_lights.push_back( pt1 );
y_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, offset)) );
y_normals.push_back( normal );
y_lights.push_back( pt2 );
y_lights.push_back( Point3D::fromSGGeod(SGGeodesy::direct(pt1, left_hdg, -offset)) );
y_normals.push_back( normal );
pt1 += inc1;
pt2 += inc2;
pt1 = SGGeodesy::direct(pt1, length_hdg, step);
}
}