pointPolygonTest function
PointPolygonTest performs a point-in-contour test.
For further details, please see: https:///docs.opencv.org/master/d3/dc0/group__imgproc__shape.html#ga1a539e8db2135af2566103705d7a5722
Implementation
double pointPolygonTest(VecPoint points, Point2f pt, bool measureDist) {
final r = calloc<ffi.Double>();
cvRun(() => cimgproc.cv_pointPolygonTest(points.ref, pt.ref, measureDist, r, ffi.nullptr));
final rval = r.value;
calloc.free(r);
return rval;
}