int poly_p_point_inside(gpc_polygon *p, double x, double y){
int i, inSolid = 0, inHole = 0;
for(i=0; i< p->num_contours; i++) {
/* loop over solid contours */
if (p->hole[i] == 0) {
inSolid = poly_c_point_inside(p->contour + i, x, y);
if (inSolid == -1)
return inSolid; /* error */
if (inSolid > 0)
break;
}
}
if (inSolid == 0)
return 0;
for(i=0; i < p->num_contours; i++) {
/* loop over holes */
if (p->hole[i] == 1) {
inHole = poly_c_point_inside(p->contour + i, x, y);
if (inHole == -1)
return inHole; /* error */
if (inHole > 0)
break;
}
}
return ((inHole > 0) ? 0 : 1);
}
static PyObject *Polygon_isInside(Polygon *self, PyObject *args) {
int i=INDEF, r=0;
double x, y;
if (! PyArg_ParseTuple(args, "dd|i", &x, &y, &i))
return Polygon_Raise(ERR_ARG);
if (i!=INDEF) {
if ((i >= 0) && (i < self->p->num_contours)) {
if ((r = poly_c_point_inside(self->p->contour+i, x, y)) == -1)
return Polygon_Raise(ERR_INV);
} else
return Polygon_Raise(ERR_IND);
} else {
if ((r = poly_p_point_inside(self->p, x, y)) == -1)
return Polygon_Raise(ERR_INV);
}
return Py_BuildValue("i", r);
}
