Campbell Barton
e191618cb5
- Grouped Mathutils deprecated functions - Dont include source code in bpy epydocs
757 lines
22 KiB
C
757 lines
22 KiB
C
/*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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*
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* Contributor(s): Joseph Gilbert
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "Mathutils.h"
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#include "BLI_arithb.h"
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#include "BKE_utildefines.h"
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#include "BLI_blenlib.h"
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//-------------------------DOC STRINGS ---------------------------
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char Quaternion_Identity_doc[] = "() - set the quaternion to it's identity (1, vector)";
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char Quaternion_Negate_doc[] = "() - set all values in the quaternion to their negative";
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char Quaternion_Conjugate_doc[] = "() - set the quaternion to it's conjugate";
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char Quaternion_Inverse_doc[] = "() - set the quaternion to it's inverse";
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char Quaternion_Normalize_doc[] = "() - normalize the vector portion of the quaternion";
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char Quaternion_ToEuler_doc[] = "(eul_compat) - return a euler rotation representing the quaternion, optional euler argument that the new euler will be made compatible with.";
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char Quaternion_ToMatrix_doc[] = "() - return a rotation matrix representing the quaternion";
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char Quaternion_Cross_doc[] = "(other) - return the cross product between this quaternion and another";
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char Quaternion_Dot_doc[] = "(other) - return the dot product between this quaternion and another";
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char Quaternion_copy_doc[] = "() - return a copy of the quat";
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//-----------------------METHOD DEFINITIONS ----------------------
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struct PyMethodDef Quaternion_methods[] = {
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{"identity", (PyCFunction) Quaternion_Identity, METH_NOARGS, Quaternion_Identity_doc},
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{"negate", (PyCFunction) Quaternion_Negate, METH_NOARGS, Quaternion_Negate_doc},
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{"conjugate", (PyCFunction) Quaternion_Conjugate, METH_NOARGS, Quaternion_Conjugate_doc},
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{"inverse", (PyCFunction) Quaternion_Inverse, METH_NOARGS, Quaternion_Inverse_doc},
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{"normalize", (PyCFunction) Quaternion_Normalize, METH_NOARGS, Quaternion_Normalize_doc},
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{"toEuler", (PyCFunction) Quaternion_ToEuler, METH_VARARGS, Quaternion_ToEuler_doc},
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{"toMatrix", (PyCFunction) Quaternion_ToMatrix, METH_NOARGS, Quaternion_ToMatrix_doc},
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{"cross", (PyCFunction) Quaternion_Cross, METH_O, Quaternion_Cross_doc},
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{"dot", (PyCFunction) Quaternion_Dot, METH_O, Quaternion_Dot_doc},
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{"__copy__", (PyCFunction) Quaternion_copy, METH_NOARGS, Quaternion_copy_doc},
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{"copy", (PyCFunction) Quaternion_copy, METH_NOARGS, Quaternion_copy_doc},
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{NULL, NULL, 0, NULL}
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};
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//-----------------------------METHODS------------------------------
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//----------------------------Quaternion.toEuler()------------------
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//return the quat as a euler
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PyObject *Quaternion_ToEuler(QuaternionObject * self, PyObject *args)
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{
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float eul[3];
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EulerObject *eul_compat = NULL;
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int x;
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if(!PyArg_ParseTuple(args, "|O!:toEuler", &euler_Type, &eul_compat))
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return NULL;
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if(eul_compat) {
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float mat[3][3], eul_compatf[3];
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for(x = 0; x < 3; x++) {
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eul_compatf[x] = eul_compat->eul[x] * ((float)Py_PI / 180);
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}
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QuatToMat3(self->quat, mat);
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Mat3ToCompatibleEul(mat, eul, eul_compatf);
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}
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else {
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QuatToEul(self->quat, eul);
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}
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for(x = 0; x < 3; x++) {
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eul[x] *= (180 / (float)Py_PI);
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}
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return newEulerObject(eul, Py_NEW);
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}
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//----------------------------Quaternion.toMatrix()------------------
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//return the quat as a matrix
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PyObject *Quaternion_ToMatrix(QuaternionObject * self)
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{
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float mat[9] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
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QuatToMat3(self->quat, (float (*)[3]) mat);
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return newMatrixObject(mat, 3, 3, Py_NEW);
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}
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//----------------------------Quaternion.cross(other)------------------
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//return the cross quat
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PyObject *Quaternion_Cross(QuaternionObject * self, QuaternionObject * value)
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{
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float quat[4];
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if (!QuaternionObject_Check(value)) {
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PyErr_SetString( PyExc_TypeError, "quat.cross(value): expected a quaternion argument" );
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return NULL;
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}
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QuatMul(quat, self->quat, value->quat);
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return newQuaternionObject(quat, Py_NEW);
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}
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//----------------------------Quaternion.dot(other)------------------
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//return the dot quat
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PyObject *Quaternion_Dot(QuaternionObject * self, QuaternionObject * value)
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{
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int x;
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double dot = 0.0;
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if (!QuaternionObject_Check(value)) {
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PyErr_SetString( PyExc_TypeError, "quat.dot(value): expected a quaternion argument" );
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return NULL;
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}
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for(x = 0; x < 4; x++) {
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dot += self->quat[x] * value->quat[x];
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}
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return PyFloat_FromDouble(dot);
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}
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//----------------------------Quaternion.normalize()----------------
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//normalize the axis of rotation of [theta,vector]
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PyObject *Quaternion_Normalize(QuaternionObject * self)
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{
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NormalQuat(self->quat);
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Py_INCREF(self);
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return (PyObject*)self;
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}
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//----------------------------Quaternion.inverse()------------------
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//invert the quat
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PyObject *Quaternion_Inverse(QuaternionObject * self)
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{
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double mag = 0.0f;
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int x;
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for(x = 1; x < 4; x++) {
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self->quat[x] = -self->quat[x];
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}
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for(x = 0; x < 4; x++) {
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mag += (self->quat[x] * self->quat[x]);
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}
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mag = sqrt(mag);
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for(x = 0; x < 4; x++) {
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self->quat[x] /= (float)(mag * mag);
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}
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Py_INCREF(self);
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return (PyObject*)self;
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}
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//----------------------------Quaternion.identity()-----------------
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//generate the identity quaternion
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PyObject *Quaternion_Identity(QuaternionObject * self)
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{
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self->quat[0] = 1.0;
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self->quat[1] = 0.0;
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self->quat[2] = 0.0;
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self->quat[3] = 0.0;
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Py_INCREF(self);
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return (PyObject*)self;
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}
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//----------------------------Quaternion.negate()-------------------
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//negate the quat
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PyObject *Quaternion_Negate(QuaternionObject * self)
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{
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int x;
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for(x = 0; x < 4; x++) {
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self->quat[x] = -self->quat[x];
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}
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Py_INCREF(self);
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return (PyObject*)self;
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}
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//----------------------------Quaternion.conjugate()----------------
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//negate the vector part
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PyObject *Quaternion_Conjugate(QuaternionObject * self)
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{
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int x;
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for(x = 1; x < 4; x++) {
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self->quat[x] = -self->quat[x];
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}
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Py_INCREF(self);
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return (PyObject*)self;
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}
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//----------------------------Quaternion.copy()----------------
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//return a copy of the quat
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PyObject *Quaternion_copy(QuaternionObject * self)
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{
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return newQuaternionObject(self->quat, Py_NEW);
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}
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//----------------------------dealloc()(internal) ------------------
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//free the py_object
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static void Quaternion_dealloc(QuaternionObject * self)
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{
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Py_XDECREF(self->coerced_object);
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//only free py_data
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if(self->data.py_data){
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PyMem_Free(self->data.py_data);
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}
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PyObject_DEL(self);
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}
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//----------------------------print object (internal)--------------
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//print the object to screen
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static PyObject *Quaternion_repr(QuaternionObject * self)
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{
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char str[64];
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sprintf(str, "[%.6f, %.6f, %.6f, %.6f](quaternion)", self->quat[0], self->quat[1], self->quat[2], self->quat[3]);
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return PyString_FromString(str);
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}
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//------------------------tp_richcmpr
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//returns -1 execption, 0 false, 1 true
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static PyObject* Quaternion_richcmpr(PyObject *objectA, PyObject *objectB, int comparison_type)
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{
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QuaternionObject *quatA = NULL, *quatB = NULL;
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int result = 0;
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if (!QuaternionObject_Check(objectA) || !QuaternionObject_Check(objectB)){
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if (comparison_type == Py_NE){
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Py_RETURN_TRUE;
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}else{
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Py_RETURN_FALSE;
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}
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}
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quatA = (QuaternionObject*)objectA;
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quatB = (QuaternionObject*)objectB;
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switch (comparison_type){
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case Py_EQ:
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result = EXPP_VectorsAreEqual(quatA->quat, quatB->quat, 4, 1);
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break;
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case Py_NE:
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result = EXPP_VectorsAreEqual(quatA->quat, quatB->quat, 4, 1);
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if (result == 0){
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result = 1;
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}else{
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result = 0;
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}
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break;
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default:
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printf("The result of the comparison could not be evaluated");
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break;
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}
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if (result == 1){
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Py_RETURN_TRUE;
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}else{
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Py_RETURN_FALSE;
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}
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}
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//------------------------tp_doc
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static char QuaternionObject_doc[] = "This is a wrapper for quaternion objects.";
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//---------------------SEQUENCE PROTOCOLS------------------------
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//----------------------------len(object)------------------------
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//sequence length
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static int Quaternion_len(QuaternionObject * self)
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{
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return 4;
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}
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//----------------------------object[]---------------------------
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//sequence accessor (get)
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static PyObject *Quaternion_item(QuaternionObject * self, int i)
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{
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if(i < 0 || i >= 4) {
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PyErr_SetString(PyExc_IndexError, "quaternion[attribute]: array index out of range\n");
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return NULL;
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}
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return PyFloat_FromDouble(self->quat[i]);
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}
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//----------------------------object[]-------------------------
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//sequence accessor (set)
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static int Quaternion_ass_item(QuaternionObject * self, int i, PyObject * ob)
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{
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PyObject *f = NULL;
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f = PyNumber_Float(ob);
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if(f == NULL) { // parsed item not a number
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PyErr_SetString(PyExc_TypeError, "quaternion[attribute] = x: argument not a number\n");
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return -1;
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}
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if(i < 0 || i >= 4){
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Py_DECREF(f);
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PyErr_SetString(PyExc_IndexError, "quaternion[attribute] = x: array assignment index out of range\n");
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return -1;
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}
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self->quat[i] = (float)PyFloat_AS_DOUBLE(f);
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Py_DECREF(f);
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return 0;
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}
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//----------------------------object[z:y]------------------------
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//sequence slice (get)
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static PyObject *Quaternion_slice(QuaternionObject * self, int begin, int end)
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{
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PyObject *list = NULL;
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int count;
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CLAMP(begin, 0, 4);
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if (end<0) end= 5+end;
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CLAMP(end, 0, 4);
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begin = MIN2(begin,end);
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list = PyList_New(end - begin);
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for(count = begin; count < end; count++) {
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PyList_SetItem(list, count - begin,
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PyFloat_FromDouble(self->quat[count]));
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}
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return list;
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}
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//----------------------------object[z:y]------------------------
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//sequence slice (set)
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static int Quaternion_ass_slice(QuaternionObject * self, int begin, int end,
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PyObject * seq)
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{
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int i, y, size = 0;
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float quat[4];
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PyObject *q, *f;
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CLAMP(begin, 0, 4);
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if (end<0) end= 5+end;
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CLAMP(end, 0, 4);
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begin = MIN2(begin,end);
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size = PySequence_Length(seq);
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if(size != (end - begin)){
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PyErr_SetString(PyExc_TypeError, "quaternion[begin:end] = []: size mismatch in slice assignment\n");
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return -1;
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}
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for (i = 0; i < size; i++) {
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q = PySequence_GetItem(seq, i);
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if (q == NULL) { // Failed to read sequence
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PyErr_SetString(PyExc_RuntimeError, "quaternion[begin:end] = []: unable to read sequence\n");
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return -1;
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}
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f = PyNumber_Float(q);
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if(f == NULL) { // parsed item not a number
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Py_DECREF(q);
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PyErr_SetString(PyExc_TypeError, "quaternion[begin:end] = []: sequence argument not a number\n");
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return -1;
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}
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quat[i] = (float)PyFloat_AS_DOUBLE(f);
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Py_DECREF(f);
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Py_DECREF(q);
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}
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//parsed well - now set in vector
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for(y = 0; y < size; y++){
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self->quat[begin + y] = quat[y];
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}
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return 0;
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}
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//------------------------NUMERIC PROTOCOLS----------------------
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//------------------------obj + obj------------------------------
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//addition
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static PyObject *Quaternion_add(PyObject * q1, PyObject * q2)
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{
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int x;
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float quat[4];
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QuaternionObject *quat1 = NULL, *quat2 = NULL;
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quat1 = (QuaternionObject*)q1;
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quat2 = (QuaternionObject*)q2;
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if(quat1->coerced_object || quat2->coerced_object){
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PyErr_SetString(PyExc_AttributeError, "Quaternion addition: arguments not valid for this operation....\n");
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return NULL;
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}
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for(x = 0; x < 4; x++) {
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quat[x] = quat1->quat[x] + quat2->quat[x];
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}
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return newQuaternionObject(quat, Py_NEW);
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}
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//------------------------obj - obj------------------------------
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//subtraction
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static PyObject *Quaternion_sub(PyObject * q1, PyObject * q2)
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{
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int x;
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float quat[4];
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QuaternionObject *quat1 = NULL, *quat2 = NULL;
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quat1 = (QuaternionObject*)q1;
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quat2 = (QuaternionObject*)q2;
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if(quat1->coerced_object || quat2->coerced_object){
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PyErr_SetString(PyExc_AttributeError, "Quaternion addition: arguments not valid for this operation....\n");
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return NULL;
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}
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for(x = 0; x < 4; x++) {
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quat[x] = quat1->quat[x] - quat2->quat[x];
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}
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return newQuaternionObject(quat, Py_NEW);
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}
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//------------------------obj * obj------------------------------
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//mulplication
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static PyObject *Quaternion_mul(PyObject * q1, PyObject * q2)
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{
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int x;
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float quat[4], scalar;
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double dot = 0.0f;
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QuaternionObject *quat1 = NULL, *quat2 = NULL;
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PyObject *f = NULL;
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VectorObject *vec = NULL;
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quat1 = (QuaternionObject*)q1;
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quat2 = (QuaternionObject*)q2;
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if(quat1->coerced_object){
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if (PyFloat_Check(quat1->coerced_object) ||
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PyInt_Check(quat1->coerced_object)){ // FLOAT/INT * QUAT
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f = PyNumber_Float(quat1->coerced_object);
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if(f == NULL) { // parsed item not a number
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PyErr_SetString(PyExc_TypeError, "Quaternion multiplication: arguments not acceptable for this operation\n");
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return NULL;
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}
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scalar = (float)PyFloat_AS_DOUBLE(f);
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Py_DECREF(f);
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for(x = 0; x < 4; x++) {
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quat[x] = quat2->quat[x] * scalar;
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}
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return newQuaternionObject(quat, Py_NEW);
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}
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}else{
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if(quat2->coerced_object){
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if (PyFloat_Check(quat2->coerced_object) ||
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PyInt_Check(quat2->coerced_object)){ // QUAT * FLOAT/INT
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f = PyNumber_Float(quat2->coerced_object);
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if(f == NULL) { // parsed item not a number
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PyErr_SetString(PyExc_TypeError, "Quaternion multiplication: arguments not acceptable for this operation\n");
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return NULL;
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}
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scalar = (float)PyFloat_AS_DOUBLE(f);
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Py_DECREF(f);
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for(x = 0; x < 4; x++) {
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quat[x] = quat1->quat[x] * scalar;
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}
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return newQuaternionObject(quat, Py_NEW);
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}else if(VectorObject_Check(quat2->coerced_object)){ //QUAT * VEC
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vec = (VectorObject*)quat2->coerced_object;
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if(vec->size != 3){
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PyErr_SetString(PyExc_TypeError, "Quaternion multiplication: only 3D vector rotations currently supported\n");
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return NULL;
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}
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return quat_rotation((PyObject*)quat1, (PyObject*)vec);
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}
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}else{ //QUAT * QUAT (dot product)
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for(x = 0; x < 4; x++) {
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dot += quat1->quat[x] * quat1->quat[x];
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}
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return PyFloat_FromDouble(dot);
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}
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "Quaternion multiplication: arguments not acceptable for this operation\n");
|
|
return NULL;
|
|
}
|
|
//------------------------coerce(obj, obj)-----------------------
|
|
//coercion of unknown types to type QuaternionObject for numeric protocols
|
|
/*Coercion() is called whenever a math operation has 2 operands that
|
|
it doesn't understand how to evaluate. 2+Matrix for example. We want to
|
|
evaluate some of these operations like: (vector * 2), however, for math
|
|
to proceed, the unknown operand must be cast to a type that python math will
|
|
understand. (e.g. in the case above case, 2 must be cast to a vector and
|
|
then call vector.multiply(vector, scalar_cast_as_vector)*/
|
|
static int Quaternion_coerce(PyObject ** q1, PyObject ** q2)
|
|
{
|
|
if(VectorObject_Check(*q2) || PyFloat_Check(*q2) || PyInt_Check(*q2)) {
|
|
PyObject *coerced = (PyObject *)(*q2);
|
|
Py_INCREF(coerced);
|
|
|
|
*q2 = newQuaternionObject(NULL,Py_NEW);
|
|
((QuaternionObject*)*q2)->coerced_object = coerced;
|
|
Py_INCREF (*q1);
|
|
return 0;
|
|
}
|
|
|
|
PyErr_SetString(PyExc_TypeError, "quaternion.coerce(): unknown operand - can't coerce for numeric protocols");
|
|
return -1;
|
|
}
|
|
//-----------------PROTOCOL DECLARATIONS--------------------------
|
|
static PySequenceMethods Quaternion_SeqMethods = {
|
|
(inquiry) Quaternion_len, /* sq_length */
|
|
(binaryfunc) 0, /* sq_concat */
|
|
(intargfunc) 0, /* sq_repeat */
|
|
(intargfunc) Quaternion_item, /* sq_item */
|
|
(intintargfunc) Quaternion_slice, /* sq_slice */
|
|
(intobjargproc) Quaternion_ass_item, /* sq_ass_item */
|
|
(intintobjargproc) Quaternion_ass_slice, /* sq_ass_slice */
|
|
};
|
|
static PyNumberMethods Quaternion_NumMethods = {
|
|
(binaryfunc) Quaternion_add, /* __add__ */
|
|
(binaryfunc) Quaternion_sub, /* __sub__ */
|
|
(binaryfunc) Quaternion_mul, /* __mul__ */
|
|
(binaryfunc) 0, /* __div__ */
|
|
(binaryfunc) 0, /* __mod__ */
|
|
(binaryfunc) 0, /* __divmod__ */
|
|
(ternaryfunc) 0, /* __pow__ */
|
|
(unaryfunc) 0, /* __neg__ */
|
|
(unaryfunc) 0, /* __pos__ */
|
|
(unaryfunc) 0, /* __abs__ */
|
|
(inquiry) 0, /* __nonzero__ */
|
|
(unaryfunc) 0, /* __invert__ */
|
|
(binaryfunc) 0, /* __lshift__ */
|
|
(binaryfunc) 0, /* __rshift__ */
|
|
(binaryfunc) 0, /* __and__ */
|
|
(binaryfunc) 0, /* __xor__ */
|
|
(binaryfunc) 0, /* __or__ */
|
|
(coercion) Quaternion_coerce, /* __coerce__ */
|
|
(unaryfunc) 0, /* __int__ */
|
|
(unaryfunc) 0, /* __long__ */
|
|
(unaryfunc) 0, /* __float__ */
|
|
(unaryfunc) 0, /* __oct__ */
|
|
(unaryfunc) 0, /* __hex__ */
|
|
|
|
};
|
|
|
|
|
|
static PyObject *Quaternion_getAxis( QuaternionObject * self, void *type )
|
|
{
|
|
switch( (long)type ) {
|
|
case 'W':
|
|
return PyFloat_FromDouble(self->quat[0]);
|
|
case 'X':
|
|
return PyFloat_FromDouble(self->quat[1]);
|
|
case 'Y':
|
|
return PyFloat_FromDouble(self->quat[2]);
|
|
case 'Z':
|
|
return PyFloat_FromDouble(self->quat[3]);
|
|
}
|
|
|
|
PyErr_SetString(PyExc_SystemError, "corrupt quaternion, cannot get axis");
|
|
return NULL;
|
|
}
|
|
|
|
static int Quaternion_setAxis( QuaternionObject * self, PyObject * value, void * type )
|
|
{
|
|
float param= (float)PyFloat_AsDouble( value );
|
|
|
|
if (param==-1 && PyErr_Occurred()) {
|
|
PyErr_SetString( PyExc_TypeError, "expected a number for the vector axis" );
|
|
return -1;
|
|
}
|
|
switch( (long)type ) {
|
|
case 'W':
|
|
self->quat[0]= param;
|
|
break;
|
|
case 'X':
|
|
self->quat[1]= param;
|
|
break;
|
|
case 'Y':
|
|
self->quat[2]= param;
|
|
break;
|
|
case 'Z':
|
|
self->quat[3]= param;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static PyObject *Quaternion_getWrapped( QuaternionObject * self, void *type )
|
|
{
|
|
if (self->wrapped == Py_WRAP)
|
|
Py_RETURN_TRUE;
|
|
else
|
|
Py_RETURN_FALSE;
|
|
}
|
|
|
|
static PyObject *Quaternion_getMagnitude( QuaternionObject * self, void *type )
|
|
{
|
|
double mag = 0.0;
|
|
int i;
|
|
for(i = 0; i < 4; i++) {
|
|
mag += self->quat[i] * self->quat[i];
|
|
}
|
|
return PyFloat_FromDouble(sqrt(mag));
|
|
}
|
|
|
|
static PyObject *Quaternion_getAngle( QuaternionObject * self, void *type )
|
|
{
|
|
double ang = self->quat[0];
|
|
ang = 2 * (saacos(ang));
|
|
ang *= (180 / Py_PI);
|
|
return PyFloat_FromDouble(ang);
|
|
}
|
|
|
|
static PyObject *Quaternion_getAxisVec( QuaternionObject * self, void *type )
|
|
{
|
|
int i;
|
|
float vec[3];
|
|
double mag = self->quat[0] * (Py_PI / 180);
|
|
mag = 2 * (saacos(mag));
|
|
mag = sin(mag / 2);
|
|
for(i = 0; i < 3; i++)
|
|
vec[i] = (float)(self->quat[i + 1] / mag);
|
|
|
|
Normalize(vec);
|
|
//If the axis of rotation is 0,0,0 set it to 1,0,0 - for zero-degree rotations
|
|
if( EXPP_FloatsAreEqual(vec[0], 0.0f, 10) &&
|
|
EXPP_FloatsAreEqual(vec[1], 0.0f, 10) &&
|
|
EXPP_FloatsAreEqual(vec[2], 0.0f, 10) ){
|
|
vec[0] = 1.0f;
|
|
}
|
|
return (PyObject *) newVectorObject(vec, 3, Py_NEW);
|
|
}
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Python attributes get/set structure: */
|
|
/*****************************************************************************/
|
|
static PyGetSetDef Quaternion_getseters[] = {
|
|
{"w",
|
|
(getter)Quaternion_getAxis, (setter)Quaternion_setAxis,
|
|
"Quaternion W value",
|
|
(void *)'W'},
|
|
{"x",
|
|
(getter)Quaternion_getAxis, (setter)Quaternion_setAxis,
|
|
"Quaternion X axis",
|
|
(void *)'X'},
|
|
{"y",
|
|
(getter)Quaternion_getAxis, (setter)Quaternion_setAxis,
|
|
"Quaternion Y axis",
|
|
(void *)'Y'},
|
|
{"z",
|
|
(getter)Quaternion_getAxis, (setter)Quaternion_setAxis,
|
|
"Quaternion Z axis",
|
|
(void *)'Z'},
|
|
{"magnitude",
|
|
(getter)Quaternion_getMagnitude, (setter)NULL,
|
|
"Size of the quaternion",
|
|
NULL},
|
|
{"angle",
|
|
(getter)Quaternion_getAngle, (setter)NULL,
|
|
"angle of the quaternion",
|
|
NULL},
|
|
{"axis",
|
|
(getter)Quaternion_getAxisVec, (setter)NULL,
|
|
"quaternion axis as a vector",
|
|
NULL},
|
|
{"wrapped",
|
|
(getter)Quaternion_getWrapped, (setter)NULL,
|
|
"True when this wraps blenders internal data",
|
|
NULL},
|
|
{NULL,NULL,NULL,NULL,NULL} /* Sentinel */
|
|
};
|
|
|
|
|
|
//------------------PY_OBECT DEFINITION--------------------------
|
|
PyTypeObject quaternion_Type = {
|
|
PyObject_HEAD_INIT(NULL) //tp_head
|
|
0, //tp_internal
|
|
"quaternion", //tp_name
|
|
sizeof(QuaternionObject), //tp_basicsize
|
|
0, //tp_itemsize
|
|
(destructor)Quaternion_dealloc, //tp_dealloc
|
|
0, //tp_print
|
|
0, //tp_getattr
|
|
0, //tp_setattr
|
|
0, //tp_compare
|
|
(reprfunc) Quaternion_repr, //tp_repr
|
|
&Quaternion_NumMethods, //tp_as_number
|
|
&Quaternion_SeqMethods, //tp_as_sequence
|
|
0, //tp_as_mapping
|
|
0, //tp_hash
|
|
0, //tp_call
|
|
0, //tp_str
|
|
0, //tp_getattro
|
|
0, //tp_setattro
|
|
0, //tp_as_buffer
|
|
Py_TPFLAGS_DEFAULT, //tp_flags
|
|
QuaternionObject_doc, //tp_doc
|
|
0, //tp_traverse
|
|
0, //tp_clear
|
|
(richcmpfunc)Quaternion_richcmpr, //tp_richcompare
|
|
0, //tp_weaklistoffset
|
|
0, //tp_iter
|
|
0, //tp_iternext
|
|
Quaternion_methods, //tp_methods
|
|
0, //tp_members
|
|
Quaternion_getseters, //tp_getset
|
|
0, //tp_base
|
|
0, //tp_dict
|
|
0, //tp_descr_get
|
|
0, //tp_descr_set
|
|
0, //tp_dictoffset
|
|
0, //tp_init
|
|
0, //tp_alloc
|
|
0, //tp_new
|
|
0, //tp_free
|
|
0, //tp_is_gc
|
|
0, //tp_bases
|
|
0, //tp_mro
|
|
0, //tp_cache
|
|
0, //tp_subclasses
|
|
0, //tp_weaklist
|
|
0 //tp_del
|
|
};
|
|
//------------------------newQuaternionObject (internal)-------------
|
|
//creates a new quaternion object
|
|
/*pass Py_WRAP - if vector is a WRAPPER for data allocated by BLENDER
|
|
(i.e. it was allocated elsewhere by MEM_mallocN())
|
|
pass Py_NEW - if vector is not a WRAPPER and managed by PYTHON
|
|
(i.e. it must be created here with PyMEM_malloc())*/
|
|
PyObject *newQuaternionObject(float *quat, int type)
|
|
{
|
|
QuaternionObject *self;
|
|
int x;
|
|
|
|
self = PyObject_NEW(QuaternionObject, &quaternion_Type);
|
|
self->data.blend_data = NULL;
|
|
self->data.py_data = NULL;
|
|
self->coerced_object = NULL;
|
|
|
|
if(type == Py_WRAP){
|
|
self->data.blend_data = quat;
|
|
self->quat = self->data.blend_data;
|
|
self->wrapped = Py_WRAP;
|
|
}else if (type == Py_NEW){
|
|
self->data.py_data = PyMem_Malloc(4 * sizeof(float));
|
|
self->quat = self->data.py_data;
|
|
if(!quat) { //new empty
|
|
Quaternion_Identity(self);
|
|
Py_DECREF(self);
|
|
}else{
|
|
for(x = 0; x < 4; x++){
|
|
self->quat[x] = quat[x];
|
|
}
|
|
}
|
|
self->wrapped = Py_NEW;
|
|
}else{ //bad type
|
|
return NULL;
|
|
}
|
|
return (PyObject *) self;
|
|
}
|