PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ interpolate_arc()

static double interpolate_arc ( double  angle,
double  a1,
double  a2,
double  a3,
double  zm1,
double  zm2,
double  zm3 
)
static

Definition at line 96 of file lwstroke.c.

97 {
98  LWDEBUGF(4,"angle %.05g a1 %.05g a2 %.05g a3 %.05g zm1 %.05g zm2 %.05g zm3 %.05g",angle,a1,a2,a3,zm1,zm2,zm3);
99  /* Counter-clockwise sweep */
100  if ( a1 < a2 )
101  {
102  if ( angle <= a2 )
103  return zm1 + (zm2-zm1) * (angle-a1) / (a2-a1);
104  else
105  return zm2 + (zm3-zm2) * (angle-a2) / (a3-a2);
106  }
107  /* Clockwise sweep */
108  else
109  {
110  if ( angle >= a2 )
111  return zm1 + (zm2-zm1) * (a1-angle) / (a1-a2);
112  else
113  return zm2 + (zm3-zm2) * (a2-angle) / (a2-a3);
114  }
115 }
#define LWDEBUGF(level, msg,...)
Definition: lwgeom_log.h:88

References LWDEBUGF.

Referenced by lwarc_linearize().

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