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Smarter vasi coloring.

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This commit is contained in:
curt
2003-12-30 07:04:05 +00:00
parent a43f5c8d21
commit 7bee5f1ab6
2 changed files with 111 additions and 9 deletions
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6
simgear/scene/tgdb/pt_lights.cxx
View File

@@ -34,7 +34,7 @@
// strobe pre-draw (we want a larger point size)
static int StrobePreDraw( ssgEntity *e ) {
glPushAttrib( GL_POINT_BIT );
glPointSize(4.0);
glPointSize(3.0);
glEnable(GL_POINT_SMOOTH);
return true;
@@ -631,8 +631,8 @@ ssgBranch *sgMakeDirectionalLights( const point_list &nodes,
// structure.
ssgRangeSelector *lod = (ssgRangeSelector *)light_group->getKid(0);
ssgLeaf *leaf = (ssgLeaf *)lod->getKid(0);
leaf->setCallback( SSG_CALLBACK_PREDRAW, StrobePreDraw );
leaf->setCallback( SSG_CALLBACK_POSTDRAW, StrobePostDraw );
// leaf->setCallback( SSG_CALLBACK_PREDRAW, StrobePreDraw );
// leaf->setCallback( SSG_CALLBACK_POSTDRAW, StrobePostDraw );
SGVASIUserData *vasi = new SGVASIUserData( pos, leaf );

114
simgear/scene/tgdb/vasi.hxx
View File

@@ -64,14 +64,116 @@ public:
double get_alt_m() { return alt_m; }
double *get_abs_pos() { return abs_pos; }
int i;
// color is a number in the range of 0.0 = full red, 1.0 = full white
void set_color( float color ) {
// color the vasi/papi correctly based on angle
void set_color( float angle_deg ) {
int count = leaf->getNumColours();
for ( int i = 0; i < count; ++i ) {
float *entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
double trans = 0.05;
double color = 1.0;
double ref;
float *entry;
if ( count == 12 ) {
// PAPI configuration
// papi D
ref = 3.5;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( i = 0; i < 3; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
// papi C
ref = 3.167;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( i = 3; i < 6; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
// papi B
ref = 2.833;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( i = 6; i < 9; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
// papi A
ref = 2.5;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( i = 9; i < 12; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
} else if ( count == 36 ) {
// probably vasi, first 18 are downwind bar (2.5 deg)
ref = 2.5;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( int i = 0; i < 18; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
// last 6 are upwind bar (3.0 deg)
ref = 3.0;
if ( angle_deg < ref - trans ) {
color = 0.0;
} else if ( angle_deg < ref + trans ) {
color = (ref + trans - angle_deg) * (1 / (2 * trans) );
} else {
color = 1.0;
}
for ( int i = 18; i < 36; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
} else {
// fail safe
cout << "unknown vasi/papi configuration, count = " << count << endl;
for ( int i = 0; i < count; ++i ) {
entry = leaf->getColour( i );
entry[1] = color;
entry[2] = color;
}
}
}
};