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Patch from Julian Foad:

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Use defined constant instead of yet another approximation to pi.
This commit is contained in:
david 2002-06-28 18:00:49 +00:00
parent 048da049f8
commit 140f58b4ca
1 changed files with 3 additions and 3 deletions
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6
src/Scenery/tileentry.cxx
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@ -193,7 +193,7 @@ float g, float b, float a)
float inv_length = 1.0 / sqrt(x*x + y*y + z*z); float inv_length = 1.0 / sqrt(x*x + y*y + z*z);
x *= inv_length; y *= inv_length; z *= inv_length; x *= inv_length; y *= inv_length; z *= inv_length;
float cos_angular_size = cos(angular_size*(22.0/7.0)/180.0); float cos_angular_size = cos(angular_size*SG_DEGREES_TO_RADIANS);
for( int s = 0; s < TEXRES_X; s++) { for( int s = 0; s < TEXRES_X; s++) {
for( int t = 0; t < TEXRES_Y; t++) { for( int t = 0; t < TEXRES_Y; t++) {
@ -258,11 +258,11 @@ void setColor2(float elevation_size,float azimuth_size, float r, float g, float
//get elevation => project t onto the x-z-plane //get elevation => project t onto the x-z-plane
float tz_proj1 = tz / sqrt(tx*tx + tz*tz); float tz_proj1 = tz / sqrt(tx*tx + tz*tz);
float televation = acos( -tz_proj1 ) * 180.0 / 3.1415; float televation = acos( -tz_proj1 ) * SG_RADIANS_TO_DEGREES;
//get azi => project t onto the y-z-plane //get azi => project t onto the y-z-plane
float tz_proj2 = tz / sqrt(ty*ty + tz*tz); float tz_proj2 = tz / sqrt(ty*ty + tz*tz);
float tazimuth = acos( -tz_proj2 ) * 180.0 / 3.1415; float tazimuth = acos( -tz_proj2 ) * SG_RADIANS_TO_DEGREES;
//note televation and tazimuth are the angles *between* the //note televation and tazimuth are the angles *between* the
//temporary vector and the normal (0,0,-1). They are *NOT* //temporary vector and the normal (0,0,-1). They are *NOT*