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#import "PerspMat.h"
@interface AzimuthMat : PerspMat
/* A special class of perspective matrices where the viewpoint is */
/* determined by an azimuth angle (theta), an elevation angle (phi), */
/* and a distance to the viewpoint. The limits are the ranges of the */
/* three coordinates. The resulting projected points are in the */
/* range [-1,1] */
{
float theta, c_theta, s_theta, phi, c_phi, s_phi, dist, limits[6];
float to_theta_cache[16], to_phi_cache[16], to_dist_cache[16];
BOOL is_cached_to_theta, is_cached_to_phi, is_cached_to_dist;
}
/* Factory Methods */
+new; // as identity matrix with limits of [0,1] for all coordinates
+newLimits:(float *)newlimits;
/* Public Methods */
-(void)reset;
-(void)setlimits:(float *)newlimits;
-(void)setTheta:(float) radians;
-(void)setPhi:(float) radians;
-(void)setdist:(float) distance;
-(void)setinvdist:(float) invdistance;
-(float)getTheta:sender;
-(float)getPhi:sender;
-(float)getdist:sender;
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.