summaryrefslogtreecommitdiffstats
path: root/libdimension-python
diff options
context:
space:
mode:
Diffstat (limited to 'libdimension-python')
-rw-r--r--libdimension-python/Makefile.am3
-rw-r--r--libdimension-python/Matrix.c342
-rw-r--r--libdimension-python/Matrix.h37
-rw-r--r--libdimension-python/Vector.c26
-rw-r--r--libdimension-python/Vector.h1
-rw-r--r--libdimension-python/dimension.c13
-rwxr-xr-xlibdimension-python/tests/geometry.py13
7 files changed, 419 insertions, 16 deletions
diff --git a/libdimension-python/Makefile.am b/libdimension-python/Makefile.am
index 89bfd1d..23af579 100644
--- a/libdimension-python/Makefile.am
+++ b/libdimension-python/Makefile.am
@@ -26,8 +26,9 @@ AM_CFLAGS = $(Python_CFLAGS)
AM_LDFLAGS = $(Python_LDFLAGS)
pyexec_LTLIBRARIES = dimension.la
-dimension_la_SOURCES = Vector.c \
+dimension_la_SOURCES = Matrix.c \
Scene.c \
+ Vector.c \
dimension.c
dimension_la_LDFLAGS = -avoid-version -module
dimension_la_LIBADD = $(top_builddir)/libdimension/libdimension.la
diff --git a/libdimension-python/Matrix.c b/libdimension-python/Matrix.c
new file mode 100644
index 0000000..a414622
--- /dev/null
+++ b/libdimension-python/Matrix.c
@@ -0,0 +1,342 @@
+/*************************************************************************
+ * Copyright (C) 2009-2011 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This file is part of The Dimension Python Module. *
+ * *
+ * The Dimension Python Module is free software; you can redistribute it *
+ * and/ or modify it under the terms of the GNU Lesser General Public *
+ * License as published by the Free Software Foundation; either version *
+ * 3 of the License, or (at your option) any later version. *
+ * *
+ * The Dimension Python Module is distributed in the hope that it will *
+ * be useful, but WITHOUT ANY WARRANTY; without even the implied *
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See *
+ * the GNU Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include "Vector.h"
+#include "Matrix.h"
+
+static int
+dmnsn_py_Matrix_init(dmnsn_py_Matrix *self, PyObject *args, PyObject *kwds)
+{
+ if (kwds) {
+ PyErr_SetString(PyExc_TypeError, "Keyword arguments not supported");
+ return -1;
+ }
+
+ if (!PyArg_ParseTuple(args, "dddddddddddd",
+ &self->m.n[0][0], &self->m.n[0][1], &self->m.n[0][2],
+ &self->m.n[0][3],
+ &self->m.n[1][0], &self->m.n[1][1], &self->m.n[1][2],
+ &self->m.n[1][3],
+ &self->m.n[2][0], &self->m.n[2][1], &self->m.n[2][2],
+ &self->m.n[2][3]))
+ return -1;
+
+ return 0;
+}
+
+PyObject *
+dmnsn_py_Matrix_scale(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ dmnsn_vector scale;
+ if (dmnsn_py_Vector_args(&scale, args, kwds)) {
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_scale_matrix(scale);
+ }
+ return (PyObject *)ret;
+ } else {
+ PyErr_Clear();
+ if (kwds) {
+ PyErr_SetString(PyExc_TypeError,
+ "Keywords only make sense for component syntax");
+ return NULL;
+ }
+
+ dmnsn_py_Vector *scale;
+ if (!PyArg_ParseTuple(args, "O!", &dmnsn_py_VectorType, &scale))
+ return NULL;
+
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_scale_matrix(scale->v);
+ }
+ return (PyObject *)ret;
+ }
+}
+
+PyObject *
+dmnsn_py_Matrix_translate(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ dmnsn_vector translate;
+ if (dmnsn_py_Vector_args(&translate, args, kwds)) {
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_translation_matrix(translate);
+ }
+ return (PyObject *)ret;
+ } else {
+ PyErr_Clear();
+ if (kwds) {
+ PyErr_SetString(PyExc_TypeError,
+ "Keywords only make sense for component syntax");
+ return NULL;
+ }
+
+ dmnsn_py_Vector *translate;
+ if (!PyArg_ParseTuple(args, "O!", &dmnsn_py_VectorType, &translate))
+ return NULL;
+
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_translation_matrix(translate->v);
+ }
+ return (PyObject *)ret;
+ }
+}
+
+PyObject *
+dmnsn_py_Matrix_rotate(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ dmnsn_vector rotate;
+ if (dmnsn_py_Vector_args(&rotate, args, kwds)) {
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_rotation_matrix(dmnsn_vector_mul(dmnsn_radians(1.0),
+ rotate));
+ }
+ return (PyObject *)ret;
+ } else {
+ PyErr_Clear();
+ if (kwds) {
+ PyErr_SetString(PyExc_TypeError,
+ "Keywords only make sense for component syntax");
+ return NULL;
+ }
+
+ dmnsn_py_Vector *rotate;
+ if (!PyArg_ParseTuple(args, "O!", &dmnsn_py_VectorType, &rotate))
+ return NULL;
+
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_rotation_matrix(dmnsn_vector_mul(dmnsn_radians(1.0),
+ rotate->v));
+ }
+ return (PyObject *)ret;
+ }
+}
+
+static PyObject *
+dmnsn_py_Matrix_repr(dmnsn_py_Matrix *self)
+{
+ PyObject *floats[3][4] = { { NULL } };
+ bool initialized = true;
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ floats[i][j] = PyFloat_FromDouble(self->m.n[i][j]);
+ if (!floats[i][j]) {
+ initialized = false;
+ break;
+ }
+ }
+ if (!initialized)
+ break;
+ }
+
+ if (!initialized) {
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ Py_XDECREF(floats[i][j]);
+ }
+ }
+ return NULL;
+ }
+
+ PyObject *repr = PyUnicode_FromFormat("dimension.Matrix(%R, %R, %R, %R,"
+ "%R, %R, %R, %R,"
+ "%R, %R, %R, %R)",
+ floats[0][0], floats[0][1],
+ floats[0][2], floats[0][3],
+ floats[1][0], floats[1][1],
+ floats[1][2], floats[1][3],
+ floats[2][0], floats[2][1],
+ floats[2][2], floats[2][3]);
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ Py_DECREF(floats[i][j]);
+ }
+ }
+ return repr;
+}
+
+static PyObject *
+dmnsn_py_Matrix_str(dmnsn_py_Matrix *self)
+{
+ PyObject *floats[3][4] = { { NULL } };
+ bool initialized = true;
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ floats[i][j] = PyFloat_FromDouble(self->m.n[i][j]);
+ if (!floats[i][j]) {
+ initialized = false;
+ break;
+ }
+ }
+ if (!initialized)
+ break;
+ }
+
+ if (!initialized) {
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ Py_XDECREF(floats[i][j]);
+ }
+ }
+ return NULL;
+ }
+
+ PyObject *str = PyUnicode_FromFormat("\n[%S\t%S\t%S\t%S]\n"
+ "[%S\t%S\t%S\t%S]\n"
+ "[%S\t%S\t%S\t%S]\n"
+ "[0.0\t0.0\t0.0\t1.0]",
+ floats[0][0], floats[0][1],
+ floats[0][2], floats[0][3],
+ floats[1][0], floats[1][1],
+ floats[1][2], floats[1][3],
+ floats[2][0], floats[2][1],
+ floats[2][2], floats[2][3]);
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ Py_DECREF(floats[i][j]);
+ }
+ }
+ return str;
+}
+
+static PyObject *
+dmnsn_py_Matrix_richcompare(PyObject *lhs, PyObject *rhs, int op)
+{
+ if (!PyObject_TypeCheck(lhs, &dmnsn_py_MatrixType)
+ || !PyObject_TypeCheck(rhs, &dmnsn_py_MatrixType))
+ {
+ PyErr_SetString(PyExc_TypeError,
+ "Matricies can only be compared with Matricies");
+ return NULL;
+ }
+
+ dmnsn_py_Matrix *mlhs = (dmnsn_py_Matrix *)lhs;
+ dmnsn_py_Matrix *mrhs = (dmnsn_py_Matrix *)rhs;
+
+ double sqdiff = 0.0;
+ for (size_t i = 0; i < 3; ++i) {
+ for (size_t j = 0; j < 4; ++j) {
+ double diff = mlhs->m.n[i][j] - mrhs->m.n[i][j];
+ sqdiff += diff*diff;
+ }
+ }
+
+ bool equal = sqrt(sqdiff) < dmnsn_epsilon;
+
+ PyObject *result;
+ switch (op) {
+ case Py_EQ:
+ result = equal ? Py_True : Py_False;
+ break;
+ case Py_NE:
+ result = !equal ? Py_True : Py_False;
+ break;
+ default:
+ result = Py_NotImplemented;
+ break;
+ }
+
+ Py_INCREF(result);
+ return result;
+}
+
+static PyObject *
+dmnsn_py_Matrix_mul(PyObject *lhs, PyObject *rhs)
+{
+ if (!PyObject_TypeCheck(lhs, &dmnsn_py_MatrixType)) {
+ PyErr_SetString(PyExc_TypeError,
+ "Left-hand side of matrix multiplication must be a matrix");
+ return NULL;
+ }
+
+ dmnsn_py_Matrix *mlhs = (dmnsn_py_Matrix *)lhs;
+
+ if (PyObject_TypeCheck(rhs, &dmnsn_py_MatrixType)) {
+ dmnsn_py_Matrix *mrhs = (dmnsn_py_Matrix *)rhs;
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_matrix_mul(mlhs->m, mrhs->m);
+ }
+ return (PyObject *)ret;
+ } else if (PyObject_TypeCheck(rhs, &dmnsn_py_VectorType)) {
+ dmnsn_py_Vector *vrhs = (dmnsn_py_Vector *)rhs;
+ dmnsn_py_Vector *ret = PyObject_New(dmnsn_py_Vector, &dmnsn_py_VectorType);
+ if (ret) {
+ ret->v = dmnsn_transform_vector(mlhs->m, vrhs->v);
+ }
+ return (PyObject *)ret;
+ } else {
+ PyErr_SetString(PyExc_TypeError,
+ "Right-hand side of matrix multiplication must be a matrix"
+ " or vector");
+ return NULL;
+ }
+}
+
+static PyNumberMethods dmnsn_py_Matrix_as_number = {
+ .nb_multiply = dmnsn_py_Matrix_mul,
+};
+
+static PyObject *
+dmnsn_py_Matrix_inverse(dmnsn_py_Matrix *self)
+{
+ dmnsn_py_Matrix *ret = PyObject_New(dmnsn_py_Matrix, &dmnsn_py_MatrixType);
+ if (ret) {
+ ret->m = dmnsn_matrix_inverse(self->m);
+ }
+ return (PyObject *)ret;
+}
+
+static PyMethodDef dmnsn_py_Matrix_methods[] = {
+ { "inverse", (PyCFunction)dmnsn_py_Matrix_inverse, METH_NOARGS,
+ "Return the inverse of the matrix" },
+ { NULL }
+};
+
+static PyGetSetDef dmnsn_py_Matrix_getsetters[] = {
+ { NULL }
+};
+
+PyTypeObject dmnsn_py_MatrixType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ .tp_name = "dimension.Matrix",
+ .tp_basicsize = sizeof(dmnsn_py_Matrix),
+ .tp_repr = (reprfunc)dmnsn_py_Matrix_repr,
+ .tp_str = (reprfunc)dmnsn_py_Matrix_str,
+ .tp_as_number = &dmnsn_py_Matrix_as_number,
+ .tp_flags = Py_TPFLAGS_DEFAULT,
+ .tp_doc = "Dimension matrix",
+ .tp_richcompare = dmnsn_py_Matrix_richcompare,
+ .tp_methods = dmnsn_py_Matrix_methods,
+ .tp_getset = dmnsn_py_Matrix_getsetters,
+ .tp_init = (initproc)dmnsn_py_Matrix_init,
+};
+
+bool
+dmnsn_py_init_MatrixType(void)
+{
+ dmnsn_py_MatrixType.tp_new = PyType_GenericNew;
+ Py_INCREF(&dmnsn_py_MatrixType);
+ return PyType_Ready(&dmnsn_py_MatrixType) >= 0;
+}
diff --git a/libdimension-python/Matrix.h b/libdimension-python/Matrix.h
new file mode 100644
index 0000000..7f7a085
--- /dev/null
+++ b/libdimension-python/Matrix.h
@@ -0,0 +1,37 @@
+/*************************************************************************
+ * Copyright (C) 2009-2011 Tavian Barnes <tavianator@tavianator.com> *
+ * *
+ * This file is part of The Dimension Python Module. *
+ * *
+ * The Dimension Python Module is free software; you can redistribute it *
+ * and/ or modify it under the terms of the GNU Lesser General Public *
+ * License as published by the Free Software Foundation; either version *
+ * 3 of the License, or (at your option) any later version. *
+ * *
+ * The Dimension Python Module is distributed in the hope that it will *
+ * be useful, but WITHOUT ANY WARRANTY; without even the implied *
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See *
+ * the GNU Lesser General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Lesser General Public *
+ * License along with this program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include "dimension.h"
+
+typedef struct dmnsn_py_Matrix {
+ PyObject_HEAD
+ dmnsn_matrix m;
+} dmnsn_py_Matrix;
+
+extern PyTypeObject dmnsn_py_MatrixType;
+
+bool dmnsn_py_init_MatrixType(void);
+
+/* Global methods */
+PyObject *dmnsn_py_Matrix_scale(PyObject *self, PyObject *args, PyObject *kwds);
+PyObject *dmnsn_py_Matrix_translate(PyObject *self, PyObject *args,
+ PyObject *kwds);
+PyObject *dmnsn_py_Matrix_rotate(PyObject *self, PyObject *args,
+ PyObject *kwds);
diff --git a/libdimension-python/Vector.c b/libdimension-python/Vector.c
index d4ed533..8cd7f05 100644
--- a/libdimension-python/Vector.c
+++ b/libdimension-python/Vector.c
@@ -19,18 +19,19 @@
*************************************************************************/
#include "Vector.h"
-#include "dimension.h"
-static int
-dmnsn_py_Vector_init(dmnsn_py_Vector *self, PyObject *args, PyObject *kwds)
+bool
+dmnsn_py_Vector_args(dmnsn_vector *v, PyObject *args, PyObject *kwds)
{
static char *kwlist[] = { "x", "y", "z", NULL };
+ return PyArg_ParseTupleAndKeywords(args, kwds, "ddd", kwlist,
+ &v->x, &v->y, &v->z);
+}
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "ddd", kwlist,
- &self->v.x, &self->v.y, &self->v.z))
- return -1;
-
- return 0;
+static int
+dmnsn_py_Vector_init(dmnsn_py_Vector *self, PyObject *args, PyObject *kwds)
+{
+ return dmnsn_py_Vector_args(&self->v, args, kwds) ? 0 : -1;
}
static PyObject *
@@ -79,12 +80,9 @@ dmnsn_py_Vector_str(dmnsn_py_Vector *self)
static PyObject *
dmnsn_py_Vector_richcompare(PyObject *lhs, PyObject *rhs, int op)
{
- if (!PyObject_TypeCheck(lhs, &dmnsn_py_VectorType)) {
- PyErr_SetString(PyExc_TypeError,
- "Vectors can only be compared with Vectors");
- return NULL;
- }
- if (!PyObject_TypeCheck(lhs, &dmnsn_py_VectorType)) {
+ if (!PyObject_TypeCheck(lhs, &dmnsn_py_VectorType)
+ || !PyObject_TypeCheck(rhs, &dmnsn_py_VectorType))
+ {
PyErr_SetString(PyExc_TypeError,
"Vectors can only be compared with Vectors");
return NULL;
diff --git a/libdimension-python/Vector.h b/libdimension-python/Vector.h
index 0ec288d..7a8d769 100644
--- a/libdimension-python/Vector.h
+++ b/libdimension-python/Vector.h
@@ -27,6 +27,7 @@ typedef struct dmnsn_py_Vector {
extern PyTypeObject dmnsn_py_VectorType;
+bool dmnsn_py_Vector_args(dmnsn_vector *v, PyObject *args, PyObject *kwds);
bool dmnsn_py_init_VectorType(void);
/* Global methods */
diff --git a/libdimension-python/dimension.c b/libdimension-python/dimension.c
index 91d32dc..2b08f6c 100644
--- a/libdimension-python/dimension.c
+++ b/libdimension-python/dimension.c
@@ -20,6 +20,7 @@
#include "dimension.h"
#include "Vector.h"
+#include "Matrix.h"
#include "Scene.h"
static PyObject *
@@ -43,6 +44,13 @@ static PyMethodDef DimensionMethods[] = {
{ "dot", dmnsn_py_Vector_dot, METH_VARARGS, "Dot product." },
{ "proj", dmnsn_py_Vector_proj, METH_VARARGS, "Vector projection." },
+ { "scale", (PyCFunction)dmnsn_py_Matrix_scale,
+ METH_VARARGS | METH_KEYWORDS, "Scaling." },
+ { "translate", (PyCFunction)dmnsn_py_Matrix_translate,
+ METH_VARARGS | METH_KEYWORDS, "Translation." },
+ { "rotate", (PyCFunction)dmnsn_py_Matrix_rotate,
+ METH_VARARGS | METH_KEYWORDS, "Rotation." },
+
{ NULL, NULL, 0, NULL }
};
@@ -58,6 +66,7 @@ PyMODINIT_FUNC
PyInit_dimension(void)
{
if (!dmnsn_py_init_VectorType()
+ || !dmnsn_py_init_MatrixType()
|| !dmnsn_py_init_SceneType())
return NULL;
@@ -89,7 +98,9 @@ PyInit_dimension(void)
PyModule_AddObject(module, "Y", (PyObject *)y);
PyModule_AddObject(module, "Z", (PyObject *)z);
- PyModule_AddObject(module, "Scene", (PyObject *)&dmnsn_py_SceneType);
+ PyModule_AddObject(module, "Matrix", (PyObject *)&dmnsn_py_MatrixType);
+
+ PyModule_AddObject(module, "Scene", (PyObject *)&dmnsn_py_SceneType);
return module;
}
diff --git a/libdimension-python/tests/geometry.py b/libdimension-python/tests/geometry.py
index b398a1b..8f76ef7 100755
--- a/libdimension-python/tests/geometry.py
+++ b/libdimension-python/tests/geometry.py
@@ -50,3 +50,16 @@ assert dot(v, v) == v.norm()**2, dot(v, v)
assert v, bool(v)
assert not Zero, not Zero
assert proj(v, X) == 2*X, proj(v, X)
+
+assert scale(1, 2, 3) == Matrix(1, 0, 0, 0,
+ 0, 2, 0, 0,
+ 0, 0, 3, 0), \
+ scale(1, 2, 3)
+assert translate(x = 1, y = 2, z = 3) == Matrix(1, 0, 0, 1,
+ 0, 1, 0, 2,
+ 0, 0, 1, 3), \
+ translate(x = 1, y = 2, z = 3)
+assert rotate(90*Y) == Matrix( 0, 0, 1, 0,
+ 0, 1, 0, 0,
+ -1, 0, 0, 0), \
+ rotate(90*Y)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 19:04:47 +0000