void poly_p_boundingbox(gpc_polygon *p, double *x0, double *x1,
double *y0, double *y1) {
int i;
double X0, X1, Y0, Y1;
if (p->num_contours <= 0) {
*x0 = *x1 = *y0 = *y1 = 0.0;
return;
}
poly_c_boundingbox(p->contour, x0, x1, y0, y1);
for (i=1; i < p->num_contours; i++) {
poly_c_boundingbox(p->contour+i, &X0, &X1, &Y0, &Y1);
if (X0 < *x0) *x0 = X0;
if (X1 > *x1) *x1 = X1;
if (Y0 < *y0) *y0 = Y0;
if (Y1 > *y1) *y1 = Y1;
}
}
static PyObject *Polygon_boundingBox(Polygon *self, PyObject *args) {
int i=INDEF;
double x0, x1, y0, y1;
if (! PyArg_ParseTuple(args, "|i", &i))
return Polygon_Raise(ERR_ARG);
if (i!=INDEF) {
if ((i >= 0) && (i < self->p->num_contours))
poly_c_boundingbox(self->p->contour+i, &x0, &x1, &y0, &y1);
else
return Polygon_Raise(ERR_IND);
} else
Polygon_getBoundingBox(self, &x0, &x1, &y0, &y1);
return Py_BuildValue("dddd", x0, x1,y0,y1);
}
static PyObject *Polygon_aspectRatio(Polygon *self, PyObject *args) {
int i=INDEF;
double x0, x1, y0, y1;
if (! PyArg_ParseTuple(args, "|i", &i))
return Polygon_Raise(ERR_ARG);
if (i!=INDEF) {
if ((i >= 0) && (i < self->gpc_p->num_contours))
poly_c_boundingbox(self->gpc_p->contour+i, &x0, &x1, &y0, &y1);
else
return Polygon_Raise(ERR_IND);
} else
Polygon_getBoundingBox(self, &x0, &x1, &y0, &y1);
return Py_BuildValue("d", ((x0 != x1) ? fabs((y1-y0)/(x1-x0)) : 0.0));
}
