//
// Written by Curtis Olson, started March 1999.
//
-// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
*/
+#include <simgear/compiler.h>
+
+// #include STL_IOSTREAM
+
#include "texcoord.hxx"
+// SG_USING_STD(cout);
+// SG_USING_STD(endl);
+
#define FG_STANDARD_TEXTURE_DIMENSION 1000.0 // meters
#define MAX_TEX_COORD 8.0
// return the basic unshifted/unmoded texture coordinate for a lat/lon
-inline Point3D basic_tex_coord( const Point3D& p,
- double degree_width, double degree_height,
- double scale )
+static inline Point3D basic_tex_coord( const Point3D& p,
+ double degree_width,
+ double degree_height,
+ double scale )
{
return Point3D( p.x() * ( degree_width * scale /
FG_STANDARD_TEXTURE_DIMENSION ),
// traverse the specified fan/strip/list of vertices and attempt to
// calculate "none stretching" texture coordinates
-point_list calc_tex_coords( const SGBucket& b, const point_list& geod_nodes,
+point_list sgCalcTexCoords( const SGBucket& b, const point_list& geod_nodes,
const int_list& fan, double scale )
{
// cout << "calculating texture coordinates for a specific fan of size = "
clat = (int)clat - 0.5;
}
- double clat_rad = clat * DEG_TO_RAD;
+ double clat_rad = clat * SGD_DEGREES_TO_RADIANS;
double cos_lat = cos( clat_rad );
- double local_radius = cos_lat * EQUATORIAL_RADIUS_M;
- double local_perimeter = 2.0 * local_radius * SG_PI;
+ double local_radius = cos_lat * SG_EQUATORIAL_RADIUS_M;
+ double local_perimeter = 2.0 * local_radius * SGD_PI;
double degree_width = local_perimeter / 360.0;
// cout << "clat = " << clat << endl;
// cout << "local_perimeter = " << local_perimeter << endl;
// cout << "degree_width = " << degree_width << endl;
- double perimeter = 2.0 * EQUATORIAL_RADIUS_M * SG_PI;
+ double perimeter = 2.0 * SG_EQUATORIAL_RADIUS_M * SGD_PI;
double degree_height = perimeter / 360.0;
// cout << "degree_height = " << degree_height << endl;