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-fix for angleBetweenVecs

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* adds a test to check for zero-length vectors
This commit is contained in:
Joseph Gilbert 2005-09-27 18:41:39 +00:00
parent 39a243f8d2
commit af431c5a68
1 changed files with 10 additions and 0 deletions
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10
source/blender/python/api2_2x/Mathutils.c
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@ -465,6 +465,7 @@ PyObject *M_Mathutils_AngleBetweenVecs(PyObject * self, PyObject * args)
double norm_a = 0.0f, norm_b = 0.0f;
double vec_a[4], vec_b[4];
int x, size;
PyObject *test = NULL;
if(!PyArg_ParseTuple(args, "O!O!", &vector_Type, &vec1, &vector_Type, &vec2))
return EXPP_ReturnPyObjError(PyExc_TypeError,
@ -473,6 +474,15 @@ PyObject *M_Mathutils_AngleBetweenVecs(PyObject * self, PyObject * args)
return EXPP_ReturnPyObjError(PyExc_AttributeError,
"Mathutils.AngleBetweenVecs(): expects (2) vector objects of the same size\n");
//test to make sure that we don't have a zero vector
test = M_Mathutils_DotVecs(self, args);
if(!PyFloat_AS_DOUBLE(test)){
Py_DECREF(test);
return EXPP_ReturnPyObjError(PyExc_AttributeError,
"Mathutils.AngleBetweenVecs(): zero-length vectors not acceptable\n");
}
Py_DECREF(test);
//since size is the same....
size = vec1->size;