[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [51724] trunk/blender/source/blender: py api: add mathutils.Matrix adjugate(d) methods, also add adjoint_m2_m2() to BLI_math_matrix
Campbell Barton
ideasman42 at gmail.com
Mon Oct 29 04:37:01 CET 2012
Revision: 51724
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=51724
Author: campbellbarton
Date: 2012-10-29 03:36:55 +0000 (Mon, 29 Oct 2012)
Log Message:
-----------
py api: add mathutils.Matrix adjugate(d) methods, also add adjoint_m2_m2() to BLI_math_matrix
Modified Paths:
--------------
trunk/blender/source/blender/blenlib/BLI_math_matrix.h
trunk/blender/source/blender/blenlib/intern/math_matrix.c
trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
Modified: trunk/blender/source/blender/blenlib/BLI_math_matrix.h
===================================================================
--- trunk/blender/source/blender/blenlib/BLI_math_matrix.h 2012-10-29 02:17:54 UTC (rev 51723)
+++ trunk/blender/source/blender/blenlib/BLI_math_matrix.h 2012-10-29 03:36:55 UTC (rev 51724)
@@ -128,6 +128,7 @@
int is_uniform_scaled_m3(float mat[3][3]);
+void adjoint_m2_m2(float R[2][2], float A[2][2]);
void adjoint_m3_m3(float R[3][3], float A[3][3]);
void adjoint_m4_m4(float R[4][4], float A[4][4]);
Modified: trunk/blender/source/blender/blenlib/intern/math_matrix.c
===================================================================
--- trunk/blender/source/blender/blenlib/intern/math_matrix.c 2012-10-29 02:17:54 UTC (rev 51723)
+++ trunk/blender/source/blender/blenlib/intern/math_matrix.c 2012-10-29 03:36:55 UTC (rev 51724)
@@ -945,8 +945,18 @@
if (len != 0.0f) rmat[2][3] = mat[2][3] / len;
}
+void adjoint_m2_m2(float m1[][2], float m[][2])
+{
+ BLI_assert(m1 != m);
+ m1[0][0] = m[1][1];
+ m1[0][1] = -m[1][0];
+ m1[1][0] = -m[0][1];
+ m1[1][1] = m[0][0];
+}
+
void adjoint_m3_m3(float m1[][3], float m[][3])
{
+ BLI_assert(m1 != m);
m1[0][0] = m[1][1] * m[2][2] - m[1][2] * m[2][1];
m1[0][1] = -m[0][1] * m[2][2] + m[0][2] * m[2][1];
m1[0][2] = m[0][1] * m[1][2] - m[0][2] * m[1][1];
Modified: trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c
===================================================================
--- trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c 2012-10-29 02:17:54 UTC (rev 51723)
+++ trunk/blender/source/blender/python/mathutils/mathutils_Matrix.c 2012-10-29 03:36:55 UTC (rev 51724)
@@ -1196,18 +1196,28 @@
if (det != 0) {
/* calculate the classical adjoint */
- if (self->num_col == 2) {
- mat[0] = MATRIX_ITEM(self, 1, 1);
- mat[1] = -MATRIX_ITEM(self, 0, 1);
- mat[2] = -MATRIX_ITEM(self, 1, 0);
- mat[3] = MATRIX_ITEM(self, 0, 0);
+ switch (self->num_col) {
+ case 2:
+ {
+ adjoint_m2_m2((float (*)[2])mat, (float (*)[2])self->matrix);
+ break;
+ }
+ case 3:
+ {
+ adjoint_m3_m3((float (*)[3])mat, (float (*)[3])self->matrix);
+ break;
+ }
+ case 4:
+ {
+ adjoint_m4_m4((float (*)[4])mat, (float (*)[4])self->matrix);
+ break;
+ }
+ default:
+ PyErr_Format(PyExc_TypeError,
+ "Matrix invert(ed): size (%d) unsupported",
+ (int)self->num_col);
+ return NULL;
}
- else if (self->num_col == 3) {
- adjoint_m3_m3((float (*)[3])mat, (float (*)[3])self->matrix);
- }
- else if (self->num_col == 4) {
- adjoint_m4_m4((float (*)[4])mat, (float (*)[4])self->matrix);
- }
/* divide by determinate */
for (x = 0; x < (self->num_col * self->num_row); x++) {
mat[x] /= det;
@@ -1236,7 +1246,7 @@
"\n"
" Return an inverted copy of the matrix.\n"
"\n"
-" :return: the inverted matrix.\n"
+" :return: the inverted matrix.\n"
" :rtype: :class:`Matrix`\n"
"\n"
" .. note:: When the matrix cant be inverted a :exc:`ValueError` exception is raised.\n"
@@ -1246,6 +1256,77 @@
return matrix__apply_to_copy((PyNoArgsFunction)Matrix_invert, self);
}
+/*---------------------------matrix.adjugate() ---------------------*/
+PyDoc_STRVAR(Matrix_adjugate_doc,
+".. method:: adjugate()\n"
+"\n"
+" Set the matrix to its adjugate.\n"
+"\n"
+" .. note:: When the matrix cant be adjugated a :exc:`ValueError` exception is raised.\n"
+"\n"
+" .. seealso:: <http://en.wikipedia.org/wiki/Adjugate_matrix>\n"
+);
+static PyObject *Matrix_adjugate(MatrixObject *self)
+{
+ if (BaseMath_ReadCallback(self) == -1)
+ return NULL;
+
+ if (self->num_col != self->num_row) {
+ PyErr_SetString(PyExc_TypeError,
+ "Matrix.adjugate(d): "
+ "only square matrices are supported");
+ return NULL;
+ }
+
+ /* calculate the classical adjoint */
+ switch (self->num_col) {
+ case 2:
+ {
+ float mat[2][2];
+ adjoint_m2_m2(mat, (float (*)[2])self->matrix);
+ copy_v4_v4((float *)self->matrix, (float *)mat);
+ break;
+ }
+ case 3:
+ {
+ float mat[3][3];
+ adjoint_m3_m3(mat, (float (*)[3])self->matrix);
+ copy_m3_m3((float (*)[3])self->matrix, mat);
+ break;
+ }
+ case 4:
+ {
+ float mat[4][4];
+ adjoint_m4_m4(mat, (float (*)[4])self->matrix);
+ copy_m4_m4((float (*)[4])self->matrix, mat);
+ break;
+ }
+ default:
+ PyErr_Format(PyExc_TypeError,
+ "Matrix adjugate(d): size (%d) unsupported",
+ (int)self->num_col);
+ return NULL;
+ }
+
+ (void)BaseMath_WriteCallback(self);
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(Matrix_adjugated_doc,
+".. method:: adjugated()\n"
+"\n"
+" Return an adjugated copy of the matrix.\n"
+"\n"
+" :return: the adjugated matrix.\n"
+" :rtype: :class:`Matrix`\n"
+"\n"
+" .. note:: When the matrix cant be adjugated a :exc:`ValueError` exception is raised.\n"
+);
+static PyObject *Matrix_adjugated(MatrixObject *self)
+{
+ return matrix__apply_to_copy((PyNoArgsFunction)Matrix_adjugate, self);
+}
+
PyDoc_STRVAR(Matrix_rotate_doc,
".. method:: rotate(other)\n"
"\n"
@@ -2281,6 +2362,8 @@
{"transposed", (PyCFunction) Matrix_transposed, METH_NOARGS, Matrix_transposed_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},
+ {"adjugated", (PyCFunction) Matrix_adjugated, METH_NOARGS, Matrix_adjugated_doc},
{"to_3x3", (PyCFunction) Matrix_to_3x3, METH_NOARGS, Matrix_to_3x3_doc},
/* TODO. {"resize_3x3", (PyCFunction) Matrix_resize3x3, METH_NOARGS, Matrix_resize3x3_doc}, */
{"to_4x4", (PyCFunction) Matrix_to_4x4, METH_NOARGS, Matrix_to_4x4_doc},
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