Revision: 53048
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=53048
Author: campbellbarton
Date: 2012-12-16 04:05:16 +0000 (Sun, 16 Dec 2012)
Log Message:
-----------
add Matrix.normalized(), handy for transforming normals.
Modified Paths:
--------------
trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
Modified: trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
===================================================================
--- trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
2012-12-16 02:53:28 UTC (rev 53047)
+++ trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
2012-12-16 04:05:16 UTC (rev 53048)
@@ -1533,6 +1533,53 @@
return matrix__apply_to_copy((PyNoArgsFunction)Matrix_transpose, self);
}
+/*---------------------------matrix.normalize() ------------------*/
+PyDoc_STRVAR(Matrix_normalize_doc,
+".. method:: normalize()\n"
+"\n"
+" Normalize each of the columns of the matrix (useful for transforming unit
length normals).\n"
+);
+static PyObject *Matrix_normalize(MatrixObject *self)
+{
+ if (BaseMath_ReadCallback(self) == -1)
+ return NULL;
+
+ if (self->num_col != self->num_row) {
+ PyErr_SetString(PyExc_ValueError,
+ "Matrix.normalize(): "
+ "only square matrices are supported");
+ return NULL;
+ }
+
+ if (self->num_col == 3) {
+ normalize_m3((float (*)[3])self->matrix);
+ }
+ else if (self->num_col == 4) {
+ normalize_m4((float (*)[4])self->matrix);
+ }
+ else {
+ PyErr_SetString(PyExc_ValueError,
+ "Matrix.normalize(): "
+ "can only use a 3x3 or 4x4 matrix");
+ }
+
+ (void)BaseMath_WriteCallback(self);
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(Matrix_normalized_doc,
+".. method:: normalized()\n"
+"\n"
+" Return a row normalized matrix\n"
+"\n"
+" :return: a row normalized matrix\n"
+" :rtype: :class:`Matrix`\n"
+);
+static PyObject *Matrix_normalized(MatrixObject *self)
+{
+ return matrix__apply_to_copy((PyNoArgsFunction)Matrix_normalize, self);
+}
+
/*---------------------------matrix.zero() -----------------------*/
PyDoc_STRVAR(Matrix_zero_doc,
".. method:: zero()\n"
@@ -2371,6 +2418,8 @@
/* operate on original or copy */
{"transpose", (PyCFunction) Matrix_transpose, METH_NOARGS,
Matrix_transpose_doc},
{"transposed", (PyCFunction) Matrix_transposed, METH_NOARGS,
Matrix_transposed_doc},
+ {"normalize", (PyCFunction) Matrix_normalize, METH_NOARGS,
Matrix_normalize_doc},
+ {"normalized", (PyCFunction) Matrix_normalized, METH_NOARGS,
Matrix_normalized_doc},
{"invert", (PyCFunction) Matrix_invert, METH_NOARGS, Matrix_invert_doc},
{"inverted", (PyCFunction) Matrix_inverted, METH_NOARGS,
Matrix_inverted_doc},
{"adjugate", (PyCFunction) Matrix_adjugate, METH_NOARGS,
Matrix_adjugate_doc},
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