insert method
Insert multiple points into a Delaunay triangulation.
https://docs.opencv.org/4.x/df/dbf/classcv_1_1Subdiv2D.html#a37223a499032ef57364f1372ad0c9c2e
Implementation
int insert(Point2f pt) {
final p = calloc<ffi.Int>();
cvRun(() => cimgproc.cv_Subdiv2D_insert(ref, pt.ref, p, ffi.nullptr));
final rval = p.value;
calloc.free(p);
return rval;
}