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py api - utility function for vectors.

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quat = vec.difference(other)

also pedantic change with enum names.
This commit is contained in:
Campbell Barton
2010-01-27 15:29:21 +00:00
parent 877251fb8c
commit 035daa2e2d
2 changed files with 39 additions and 6 deletions
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33
source/blender/python/generic/vector.c
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@@ -560,6 +560,38 @@ static PyObject *Vector_Angle(VectorObject * self, VectorObject * value)
#endif
}
static char Vector_Difference_doc[] =
".. function:: difference(other)\n"
"\n"
" Returns a quaternion representing the rotational difference between this vector and another.\n"
"\n"
" :arg other: second vector.\n"
" :type other: Vector\n"
" :return: the rotational difference between the two vectors.\n"
" :rtype: Quaternion\n";
static PyObject *Vector_Difference( VectorObject * self, VectorObject * value )
{
float quat[4];
if (!VectorObject_Check(value)) {
PyErr_SetString( PyExc_TypeError, "vec.difference(value): expected a vector argument" );
return NULL;
}
if(self->size < 3 || value->size < 3) {
PyErr_SetString(PyExc_AttributeError, "vec.difference(value): expects both vectors to be size 3 or 4\n");
return NULL;
}
if(!BaseMath_ReadCallback(self) || !BaseMath_ReadCallback(value))
return NULL;
rotation_between_vecs_to_quat(quat, self->vec, value->vec);
return newQuaternionObject(quat, Py_NEW, NULL);
}
static char Vector_Project_doc[] =
".. function:: project(other)\n"
"\n"
@@ -2076,6 +2108,7 @@ static struct PyMethodDef Vector_methods[] = {
{"cross", ( PyCFunction ) Vector_Cross, METH_O, Vector_Cross_doc},
{"dot", ( PyCFunction ) Vector_Dot, METH_O, Vector_Dot_doc},
{"angle", ( PyCFunction ) Vector_Angle, METH_O, Vector_Angle_doc},
{"difference", ( PyCFunction ) Vector_Difference, METH_O, Vector_Difference_doc},
{"project", ( PyCFunction ) Vector_Project, METH_O, Vector_Project_doc},
{"lerp", ( PyCFunction ) Vector_Lerp, METH_VARARGS, Vector_Lerp_doc},
{"copy", (PyCFunction) Vector_copy, METH_NOARGS, Vector_copy_doc},