/**
* gts_triangle_is_ok:
* @t: a #GtsTriangle.
*
* Returns: %TRUE if @t is a non-degenerate, non-duplicate triangle,
* %FALSE otherwise.
*/
gboolean gts_triangle_is_ok (GtsTriangle * t)
{
g_return_val_if_fail (t != NULL, FALSE);
g_return_val_if_fail (t->e1 != NULL, FALSE);
g_return_val_if_fail (t->e2 != NULL, FALSE);
g_return_val_if_fail (t->e3 != NULL, FALSE);
g_return_val_if_fail (t->e1 != t->e2 && t->e1 != t->e3 && t->e2 != t->e3,
FALSE);
g_return_val_if_fail (gts_segments_touch (GTS_SEGMENT (t->e1),
GTS_SEGMENT (t->e2)),
FALSE);
g_return_val_if_fail (gts_segments_touch (GTS_SEGMENT (t->e1),
GTS_SEGMENT (t->e3)),
FALSE);
g_return_val_if_fail (gts_segments_touch (GTS_SEGMENT (t->e2),
GTS_SEGMENT (t->e3)),
FALSE);
g_return_val_if_fail (GTS_SEGMENT (t->e1)->v1 != GTS_SEGMENT (t->e1)->v2,
FALSE);
g_return_val_if_fail (GTS_SEGMENT (t->e2)->v1 != GTS_SEGMENT (t->e2)->v2,
FALSE);
g_return_val_if_fail (GTS_SEGMENT (t->e3)->v1 != GTS_SEGMENT (t->e3)->v2,
FALSE);
g_return_val_if_fail (GTS_OBJECT (t)->reserved == NULL, FALSE);
g_return_val_if_fail (!gts_triangle_is_duplicate (t), FALSE);
return TRUE;
}
static PyObject*
touches(PygtsSegment *self, PyObject *args)
{
PyObject *s_;
GtsSegment *s;
SELF_CHECK
/* Parse the args */
if(! PyArg_ParseTuple(args, "O", &s_) ) {
return NULL;
}
/* Convert to PygtsObjects */
if(!pygts_segment_check(s_)) {
PyErr_SetString(PyExc_TypeError,"expected a Segment");
return NULL;
}
s = PYGTS_SEGMENT_AS_GTS_SEGMENT(s_);
if(gts_segments_touch(PYGTS_SEGMENT_AS_GTS_SEGMENT(self),s)) {
Py_INCREF(Py_True);
return Py_True;
}
else {
Py_INCREF(Py_False);
return Py_False;
}
}
