PTLOC_ON_EDGE     379 modules/imgproc/src/subdivision2d.cpp             location = PTLOC_ON_EDGE;
PTLOC_ON_EDGE     424 modules/imgproc/src/subdivision2d.cpp     if( location == PTLOC_ON_EDGE )
PTLOC_ON_EDGE     653 modules/imgproc/src/subdivision2d.cpp     if( loc != PTLOC_ON_EDGE && loc != PTLOC_INSIDE )