/* * * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. The Blender * Foundation also sells licenses for use in proprietary software under * the Blender License. See http://www.blender.org/BL/ for information * about this. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. * All rights reserved. * * This is a new part of Blender. * * Contributor(s): Jacques Guignot, Stephen Swaney * * ***** END GPL/BL DUAL LICENSE BLOCK ***** */ #include #include "Curve.h" #include #include #include #include #include #include #include #include #include "gen_utils.h" /*****************************************************************************/ /* The following string definitions are used for documentation strings. */ /* In Python these will be written to the console when doing a */ /* Blender.Curve.__doc__ */ /*****************************************************************************/ char M_Curve_doc[] = "The Blender Curve module\n\n\ This module provides access to **Curve Data** in Blender.\n\ Functions :\n\ New(opt name) : creates a new curve object with the given name (optional)\n\ Get(name) : retreives a curve with the given name (mandatory)\n\ get(name) : same as Get. Kept for compatibility reasons"; char M_Curve_New_doc[] = ""; char M_Curve_Get_doc[] = "xxx"; /*****************************************************************************/ /* Python API function prototypes for the Curve module. */ /*****************************************************************************/ static PyObject *M_Curve_New (PyObject * self, PyObject * args); static PyObject *M_Curve_Get (PyObject * self, PyObject * args); /*****************************************************************************/ /* Python BPy_Curve instance methods declarations: */ /*****************************************************************************/ static PyObject *Curve_getName (BPy_Curve * self); static PyObject *Curve_setName (BPy_Curve * self, PyObject * args); static PyObject *Curve_getPathLen (BPy_Curve * self); static PyObject *Curve_setPathLen (BPy_Curve * self, PyObject * args); static PyObject *Curve_getTotcol (BPy_Curve * self); static PyObject *Curve_setTotcol (BPy_Curve * self, PyObject * args); static PyObject *Curve_getMode (BPy_Curve * self); static PyObject *Curve_setMode (BPy_Curve * self, PyObject * args); static PyObject *Curve_getBevresol (BPy_Curve * self); static PyObject *Curve_setBevresol (BPy_Curve * self, PyObject * args); static PyObject *Curve_getResolu (BPy_Curve * self); static PyObject *Curve_setResolu (BPy_Curve * self, PyObject * args); static PyObject *Curve_getResolv (BPy_Curve * self); static PyObject *Curve_setResolv (BPy_Curve * self, PyObject * args); static PyObject *Curve_getWidth (BPy_Curve * self); static PyObject *Curve_setWidth (BPy_Curve * self, PyObject * args); static PyObject *Curve_getExt1 (BPy_Curve * self); static PyObject *Curve_setExt1 (BPy_Curve * self, PyObject * args); static PyObject *Curve_getExt2 (BPy_Curve * self); static PyObject *Curve_setExt2 (BPy_Curve * self, PyObject * args); static PyObject *Curve_getControlPoint (BPy_Curve * self, PyObject * args); static PyObject *Curve_setControlPoint (BPy_Curve * self, PyObject * args); static PyObject *Curve_getLoc (BPy_Curve * self); static PyObject *Curve_setLoc (BPy_Curve * self, PyObject * args); static PyObject *Curve_getRot (BPy_Curve * self); static PyObject *Curve_setRot (BPy_Curve * self, PyObject * args); static PyObject *Curve_getSize (BPy_Curve * self); static PyObject *Curve_setSize (BPy_Curve * self, PyObject * args); static PyObject *Curve_getNumCurves (BPy_Curve * self); static PyObject *Curve_isNurb (BPy_Curve * self, PyObject * args); static PyObject *Curve_getNumPoints (BPy_Curve * self, PyObject * args); static PyObject *Curve_getNumPoints (BPy_Curve * self, PyObject * args); /*****************************************************************************/ /* Python method definitions for Blender.Curve module: */ /*****************************************************************************/ struct PyMethodDef M_Curve_methods[] = { {"New", (PyCFunction) M_Curve_New, METH_VARARGS, M_Curve_New_doc}, {"Get", M_Curve_Get, METH_VARARGS, M_Curve_Get_doc}, {"get", M_Curve_Get, METH_VARARGS, M_Curve_Get_doc}, {NULL, NULL, 0, NULL} }; /*****************************************************************************/ /* Python BPy_Curve instance methods table: */ /*****************************************************************************/ static PyMethodDef BPy_Curve_methods[] = { {"getName", (PyCFunction) Curve_getName, METH_NOARGS, "() - Return Curve Data name"}, {"setName", (PyCFunction) Curve_setName, METH_VARARGS, "() - Sets Curve Data name"}, {"getPathLen", (PyCFunction) Curve_getPathLen, METH_NOARGS, "() - Return Curve path length"}, {"setPathLen", (PyCFunction) Curve_setPathLen, METH_VARARGS, "(int) - Sets Curve path length"}, {"getTotcol", (PyCFunction) Curve_getTotcol, METH_NOARGS, "() - Return the number of materials of the curve"}, {"setTotcol", (PyCFunction) Curve_setTotcol, METH_VARARGS, "(int) - Sets the number of materials of the curve"}, {"getFlag", (PyCFunction) Curve_getMode, METH_NOARGS, "() - Return flag (see the doc for semantic)"}, {"setFlag", (PyCFunction) Curve_setMode, METH_VARARGS, "(int) - Sets flag (see the doc for semantic)"}, {"getBevresol", (PyCFunction) Curve_getBevresol, METH_NOARGS, "() - Return bevel resolution"}, {"setBevresol", (PyCFunction) Curve_setBevresol, METH_VARARGS, "(int) - Sets bevel resolution"}, {"getResolu", (PyCFunction) Curve_getResolu, METH_NOARGS, "() - Return U resolution"}, {"setResolu", (PyCFunction) Curve_setResolu, METH_VARARGS, "(int) - Sets U resolution"}, {"getResolv", (PyCFunction) Curve_getResolv, METH_NOARGS, "() - Return V resolution"}, {"setResolv", (PyCFunction) Curve_setResolv, METH_VARARGS, "(int) - Sets V resolution"}, {"getWidth", (PyCFunction) Curve_getWidth, METH_NOARGS, "() - Return curve width"}, {"setWidth", (PyCFunction) Curve_setWidth, METH_VARARGS, "(int) - Sets curve width"}, {"getExt1", (PyCFunction) Curve_getExt1, METH_NOARGS, "() - Returns extent 1 of the bevel"}, {"setExt1", (PyCFunction) Curve_setExt1, METH_VARARGS, "(int) - Sets extent 1 of the bevel"}, {"getExt2", (PyCFunction) Curve_getExt2, METH_NOARGS, "() - Return extent 2 of the bevel "}, {"setExt2", (PyCFunction) Curve_setExt2, METH_VARARGS, "(int) - Sets extent 2 of the bevel "}, {"getControlPoint", (PyCFunction) Curve_getControlPoint, METH_VARARGS, "(int numcurve,int numpoint) -\ Gets a control point.Depending upon the curve type, returne a list of 4 or 9 floats"}, {"setControlPoint", (PyCFunction) Curve_setControlPoint, METH_VARARGS, "(int numcurve,int numpoint,float x,float y,float z,\ float w)(nurbs) or (int numcurve,int numpoint,float x1,...,x9(bezier)\ Sets a control point "}, {"getLoc", (PyCFunction) Curve_getLoc, METH_NOARGS, "() - Gets Location of the curve (a 3-tuple) "}, {"setLoc", (PyCFunction) Curve_setLoc, METH_VARARGS, "(3-tuple) - Sets Location "}, {"getRot", (PyCFunction) Curve_getRot, METH_NOARGS, "() - Gets curve rotation"}, {"setRot", (PyCFunction) Curve_setRot, METH_VARARGS, "(3-tuple) - Sets curve rotation"}, {"getSize", (PyCFunction) Curve_getSize, METH_NOARGS, "() - Gets curve size"}, {"setSize", (PyCFunction) Curve_setSize, METH_VARARGS, "(3-tuple) - Sets curve size"}, {"getNumCurves", (PyCFunction) Curve_getNumCurves, METH_NOARGS, "() - Gets # of curves"}, {"isNurb", (PyCFunction) Curve_isNurb, METH_NOARGS, "(nothing or integer) - returns 1 or 0, depending upon the curve being a Nurb"}, {"getNumPoints", (PyCFunction) Curve_getNumPoints, METH_VARARGS, "(nothing or integer) - returns the number of points of the specified curve"}, {NULL, NULL, 0, NULL} }; /*****************************************************************************/ /* Python Curve_Type callback function prototypes: */ /*****************************************************************************/ static void CurveDeAlloc (BPy_Curve * msh); /* static int CurvePrint (BPy_Curve *msh, FILE *fp, int flags); */ static int CurveSetAttr (BPy_Curve * msh, char *name, PyObject * v); static PyObject *CurveGetAttr (BPy_Curve * msh, char *name); static PyObject *CurveRepr (BPy_Curve * msh); PyObject *Curve_CreatePyObject (struct Curve *curve); int Curve_CheckPyObject (PyObject * py_obj); struct Curve *Curve_FromPyObject (PyObject * py_obj); /*****************************************************************************/ /* Python Curve_Type structure definition: */ /*****************************************************************************/ PyTypeObject Curve_Type = { PyObject_HEAD_INIT (NULL) /* required macro */ 0, /* ob_size */ "Curve", /* tp_name - for printing */ sizeof (BPy_Curve), /* tp_basicsize - for allocation */ 0, /* tp_itemsize - for allocation */ /* methods for standard operations */ (destructor) CurveDeAlloc, /* tp_dealloc */ 0, /* tp_print */ (getattrfunc) CurveGetAttr, /* tp_getattr */ (setattrfunc) CurveSetAttr, /* tp_setattr */ 0, /* tp_compare */ (reprfunc) CurveRepr, /* tp_repr */ /* methods for standard classes */ 0, /* tp_as_number */ 0, /* tp_as_sequence */ 0, /* tp_as_mapping */ 0, /* tp_as_hash */ 0, /* tp_call */ 0, /* tp_str */ 0, /* tp_getattro */ 0, /* tp_setattro */ 0, /* tp_as_buffer */ /* Flags to define presence of optional/expaned features */ 0, /* tp_flags */ 0, /* tp_doc - documentation string */ 0, /* tp_traverse */ /* delete references to contained objects */ 0, /* tp_clear */ 0, /* tp_richcompare - rich comparisions */ 0, /* tp_weaklistoffset - weak reference enabler */ /* new release 2.2 stuff - Iterators */ 0, /* tp_iter */ 0, /* tp_iternext */ /* Attribute descriptor and subclassing stuff */ BPy_Curve_methods, /* tp_methods */ 0, /* tp_members */ 0, /* 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; Low-level free-memory routine */ 0, /* tp_is_gc */ 0, /* tp_bases; */ 0, /* tp_mro; method resolution order */ 0, /* tp_defined; */ 0, /* tp_weakllst */ 0, }; /*****************************************************************************/ /* Function: M_Curve_New */ /* Python equivalent: Blender.Curve.New */ /*****************************************************************************/ static PyObject * M_Curve_New (PyObject * self, PyObject * args) { char buf[24]; char *name = NULL; BPy_Curve *pycurve; /* for Curve Data object wrapper in Python */ Curve *blcurve = 0; /* for actual Curve Data we create in Blender */ if (!PyArg_ParseTuple (args, "|s", &name)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected string argument or no argument")); blcurve = add_curve (OB_CURVE); /* first create the Curve Data in Blender */ if (blcurve == NULL) /* bail out if add_curve() failed */ return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't create Curve Data in Blender")); /* return user count to zero because add_curve() inc'd it */ blcurve->id.us = 0; /* create python wrapper obj */ pycurve = (BPy_Curve *) PyObject_NEW (BPy_Curve, &Curve_Type); if (pycurve == NULL) return (EXPP_ReturnPyObjError (PyExc_MemoryError, "couldn't create Curve Data object")); pycurve->curve = blcurve; /* link Python curve wrapper to Blender Curve */ if (name) { PyOS_snprintf (buf, sizeof (buf), "%s", name); rename_id (&blcurve->id, buf); } return (PyObject *) pycurve; } /*****************************************************************************/ /* Function: M_Curve_Get */ /* Python equivalent: Blender.Curve.Get */ /*****************************************************************************/ static PyObject * M_Curve_Get (PyObject * self, PyObject * args) { char *name = NULL; Curve *curv_iter; BPy_Curve *wanted_curv; if (!PyArg_ParseTuple (args, "|s", &name)) /* expects nothing or a string */ return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected string argument")); if (name) { /*a name has been given */ /* Use the name to search for the curve requested */ wanted_curv = NULL; curv_iter = G.main->curve.first; while ((curv_iter) && (wanted_curv == NULL)) { if (strcmp (name, curv_iter->id.name + 2) == 0) { wanted_curv = (BPy_Curve *) PyObject_NEW (BPy_Curve, &Curve_Type); if (wanted_curv) wanted_curv->curve = curv_iter; } curv_iter = curv_iter->id.next; } if (wanted_curv == NULL) { /* Requested curve doesn't exist */ char error_msg[64]; PyOS_snprintf (error_msg, sizeof (error_msg), "Curve \"%s\" not found", name); return (EXPP_ReturnPyObjError (PyExc_NameError, error_msg)); } return (PyObject *) wanted_curv; } /* end of if(name) */ else { /* no name has been given; return a list of all curves by name. */ PyObject *curvlist; curv_iter = G.main->curve.first; curvlist = PyList_New (0); if (curvlist == NULL) return (PythonReturnErrorObject (PyExc_MemoryError, "couldn't create PyList")); while (curv_iter) { BPy_Curve *found_cur = (BPy_Curve *) PyObject_NEW (BPy_Curve, &Curve_Type); found_cur->curve = curv_iter; PyList_Append (curvlist, (PyObject *) found_cur); curv_iter = curv_iter->id.next; } return (curvlist); } /* end of else */ } /*****************************************************************************/ /* Function: Curve_Init */ /*****************************************************************************/ PyObject * Curve_Init (void) { PyObject *submodule; Curve_Type.ob_type = &PyType_Type; submodule = Py_InitModule3 ("Blender.Curve", M_Curve_methods, M_Curve_doc); return (submodule); } /*****************************************************************************/ /* Python BPy_Curve methods: */ /* gives access to */ /* name, pathlen totcol flag bevresol */ /* resolu resolv width ext1 ext2 */ /* controlpoint loc rot size */ /* numpts */ /*****************************************************************************/ static PyObject * Curve_getName (BPy_Curve * self) { PyObject *attr = PyString_FromString (self->curve->id.name + 2); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.name attribute")); } static PyObject * Curve_setName (BPy_Curve * self, PyObject * args) { char *name; char buf[50]; if (!PyArg_ParseTuple (args, "s", &(name))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected string argument")); PyOS_snprintf (buf, sizeof (buf), "%s", name); rename_id (&self->curve->id, buf); /* proper way in Blender */ Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getPathLen (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->pathlen); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.pathlen attribute")); } static PyObject * Curve_setPathLen (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->pathlen))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getTotcol (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->totcol); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.totcol attribute")); } static PyObject * Curve_setTotcol (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->totcol))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getMode (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->flag); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.flag attribute")); } static PyObject * Curve_setMode (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->flag))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getBevresol (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->bevresol); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.bevresol attribute")); } static PyObject * Curve_setBevresol (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->bevresol))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getResolu (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->resolu); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.resolu attribute")); } static PyObject * Curve_setResolu (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->resolu))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getResolv (BPy_Curve * self) { PyObject *attr = PyInt_FromLong ((long) self->curve->resolv); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.resolv attribute")); } static PyObject * Curve_setResolv (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "i", &(self->curve->resolv))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getWidth (BPy_Curve * self) { PyObject *attr = PyFloat_FromDouble ((double) self->curve->width); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.width attribute")); } static PyObject * Curve_setWidth (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "f", &(self->curve->width))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected float argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getExt1 (BPy_Curve * self) { PyObject *attr = PyFloat_FromDouble ((double) self->curve->ext1); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.ext1 attribute")); } static PyObject * Curve_setExt1 (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "f", &(self->curve->ext1))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected float argument")); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getExt2 (BPy_Curve * self) { PyObject *attr = PyFloat_FromDouble ((double) self->curve->ext2); if (attr) return attr; return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get Curve.ext2 attribute")); } static PyObject * Curve_setExt2 (BPy_Curve * self, PyObject * args) { if (!PyArg_ParseTuple (args, "f", &(self->curve->ext2))) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected float argument")); Py_INCREF (Py_None); return Py_None; } /* static PyObject *Curve_setControlPoint(BPy_Curve *self, PyObject *args) { Nurb*ptrnurb = self->curve->nurb.first; int numcourbe,numpoint,i,j; float x,y,z,w; float bez[9]; if (!ptrnurb){ Py_INCREF(Py_None);return Py_None;} if (ptrnurb->bp) if (!PyArg_ParseTuple(args, "iiffff", &numcourbe,&numpoint,&x,&y,&z,&w)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int int float float float float arguments")); if (ptrnurb->bezt) if (!PyArg_ParseTuple(args, "iifffffffff", &numcourbe,&numpoint, bez,bez+1,bez+2,bez+3,bez+4,bez+5,bez+6,bez+7,bez+8)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int int float float float float float float " "float float float arguments")); for(i = 0;i< numcourbe;i++) ptrnurb=ptrnurb->next; if (ptrnurb->bp) { ptrnurb->bp[numpoint].vec[0] = x; ptrnurb->bp[numpoint].vec[1] = y; ptrnurb->bp[numpoint].vec[2] = z; ptrnurb->bp[numpoint].vec[3] = w; } if (ptrnurb->bezt) { for(i = 0;i<3;i++) for(j = 0;j<3;j++) ptrnurb->bezt[numpoint].vec[i][j] = bez[i*3+j]; } Py_INCREF(Py_None); return Py_None; } */ static PyObject * Curve_setControlPoint (BPy_Curve * self, PyObject * args) { PyObject *listargs = 0; Nurb *ptrnurb = self->curve->nurb.first; int numcourbe, numpoint, i, j; if (!ptrnurb) { Py_INCREF (Py_None); return Py_None; } if (ptrnurb->bp) if (!PyArg_ParseTuple (args, "iiO", &numcourbe, &numpoint, &listargs)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int int list arguments")); if (ptrnurb->bezt) if (!PyArg_ParseTuple (args, "iiO", &numcourbe, &numpoint, &listargs)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int int list arguments")); for (i = 0; i < numcourbe; i++) ptrnurb = ptrnurb->next; if (ptrnurb->bp) for (i = 0; i < 4; i++) ptrnurb->bp[numpoint].vec[i] = PyFloat_AsDouble (PyList_GetItem (listargs, i)); if (ptrnurb->bezt) for (i = 0; i < 3; i++) for (j = 0; j < 3; j++) ptrnurb->bezt[numpoint].vec[i][j] = PyFloat_AsDouble (PyList_GetItem (listargs, i * 3 + j)); Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getControlPoint (BPy_Curve * self, PyObject * args) { PyObject *liste = PyList_New (0); /* return values */ Nurb *ptrnurb; int i, j; /* input args: requested curve and point number on curve */ int numcourbe, numpoint; if (!PyArg_ParseTuple (args, "ii", &numcourbe, &numpoint)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int int arguments")); if ((numcourbe < 0) || (numpoint < 0)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, " arguments must be non-negative")); /* if no nurbs in this curve obj */ if (!self->curve->nurb.first) return liste; /* walk the list of nurbs to find requested numcourbe */ ptrnurb = self->curve->nurb.first; for (i = 0; i < numcourbe; i++) { ptrnurb = ptrnurb->next; if (!ptrnurb) /* if zero, we ran just ran out of curves */ return (EXPP_ReturnPyObjError (PyExc_AttributeError, "curve index out of range")); } /* check numpoint param against pntsu */ if (numpoint >= ptrnurb->pntsu) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "point index out of range")); if (ptrnurb->bp) /* if we are a nurb curve, you get 4 values */ { for (i = 0; i < 4; i++) PyList_Append (liste, PyFloat_FromDouble (ptrnurb->bp[numpoint].vec[i])); } if (ptrnurb->bezt) /* if we are a bezier, you get 9 values */ { for (i = 0; i < 3; i++) for (j = 0; j < 3; j++) PyList_Append (liste, PyFloat_FromDouble (ptrnurb->bezt[numpoint]. vec[i][j])); } return liste; } static PyObject * Curve_getLoc (BPy_Curve * self) { int i; PyObject *liste = PyList_New (3); for (i = 0; i < 3; i++) PyList_SetItem (liste, i, PyFloat_FromDouble (self->curve->loc[i])); return liste; } static PyObject * Curve_setLoc (BPy_Curve * self, PyObject * args) { PyObject *listargs = 0; int i; if (!PyArg_ParseTuple (args, "O", &listargs)) return EXPP_ReturnPyObjError (PyExc_AttributeError, "expected list argument"); if (!PyList_Check (listargs)) return (EXPP_ReturnPyObjError (PyExc_TypeError, "expected a list")); for (i = 0; i < 3; i++) { PyObject *xx = PyList_GetItem (listargs, i); self->curve->loc[i] = PyFloat_AsDouble (xx); } Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getRot (BPy_Curve * self) { int i; PyObject *liste = PyList_New (3); for (i = 0; i < 3; i++) PyList_SetItem (liste, i, PyFloat_FromDouble (self->curve->rot[i])); return liste; } static PyObject * Curve_setRot (BPy_Curve * self, PyObject * args) { PyObject *listargs = 0; int i; if (!PyArg_ParseTuple (args, "O", &listargs)) return EXPP_ReturnPyObjError (PyExc_AttributeError, "expected list argument"); if (!PyList_Check (listargs)) return (EXPP_ReturnPyObjError (PyExc_TypeError, "expected a list")); for (i = 0; i < 3; i++) { PyObject *xx = PyList_GetItem (listargs, i); self->curve->rot[i] = PyFloat_AsDouble (xx); } Py_INCREF (Py_None); return Py_None; } static PyObject * Curve_getSize (BPy_Curve * self) { int i; PyObject *liste = PyList_New (3); for (i = 0; i < 3; i++) PyList_SetItem (liste, i, PyFloat_FromDouble (self->curve->size[i])); return liste; } static PyObject * Curve_setSize (BPy_Curve * self, PyObject * args) { PyObject *listargs = 0; int i; if (!PyArg_ParseTuple (args, "O", &listargs)) return EXPP_ReturnPyObjError (PyExc_AttributeError, "expected list argument"); if (!PyList_Check (listargs)) return (EXPP_ReturnPyObjError (PyExc_TypeError, "expected a list")); for (i = 0; i < 3; i++) { PyObject *xx = PyList_GetItem (listargs, i); self->curve->size[i] = PyFloat_AsDouble (xx); } Py_INCREF (Py_None); return Py_None; } /* * Count the number of splines in a Curve Object * int getNumCurves() */ static PyObject * Curve_getNumCurves (BPy_Curve * self) { Nurb *ptrnurb; PyObject *ret_val; int num_curves = 0; /* start with no splines */ /* get curve */ ptrnurb = self->curve->nurb.first; if (ptrnurb) /* we have some nurbs in this curve */ { while (1) { ++num_curves; ptrnurb = ptrnurb->next; if (!ptrnurb) /* no more curves */ break; } } ret_val = PyInt_FromLong ((long) num_curves); if (ret_val) return ret_val; /* oops! */ return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get number of curves")); } /* * count the number of points in a give spline * int getNumPoints( curve_num=0 ) * */ static PyObject * Curve_getNumPoints (BPy_Curve * self, PyObject * args) { Nurb *ptrnurb; PyObject *ret_val; int curve_num = 0; /* default spline number */ int i; /* parse input arg */ if (!PyArg_ParseTuple (args, "|i", &curve_num)) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); /* check arg - must be non-negative */ if (curve_num < 0) return (EXPP_ReturnPyObjError (PyExc_AttributeError, "argument must be non-negative")); /* walk the list of curves looking for our curve */ ptrnurb = self->curve->nurb.first; if (!ptrnurb) /* no splines in this Curve */ { return (EXPP_ReturnPyObjError (PyExc_AttributeError, "no splines in this Curve")); } for (i = 0; i < curve_num; i++) { ptrnurb = ptrnurb->next; if (!ptrnurb) /* if zero, we ran just ran out of curves */ return (EXPP_ReturnPyObjError (PyExc_AttributeError, "curve index out of range")); } /* pntsu is the number of points in curve */ ret_val = PyInt_FromLong ((long) ptrnurb->pntsu); if (ret_val) return ret_val; /* oops! */ return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get number of points for curve")); } /* * Test whether a given spline of a Curve is a nurb * as opposed to a bezier * int isNurb( curve_num=0 ) */ static PyObject * Curve_isNurb (BPy_Curve * self, PyObject * args) { int curve_num = 0; /* default value */ int is_nurb; Nurb *ptrnurb; PyObject *ret_val; int i; /* parse and check input args */ if (!PyArg_ParseTuple (args, "|i", &curve_num)) { return (EXPP_ReturnPyObjError (PyExc_AttributeError, "expected int argument")); } if (curve_num < 0) { return (EXPP_ReturnPyObjError (PyExc_AttributeError, "curve number must be non-negative")); } ptrnurb = self->curve->nurb.first; if (!ptrnurb) /* no splines in this curve */ return (EXPP_ReturnPyObjError (PyExc_AttributeError, "no splines in this Curve")); for (i = 0; i < curve_num; i++) { ptrnurb = ptrnurb->next; if (!ptrnurb) /* if zero, we ran just ran out of curves */ return (EXPP_ReturnPyObjError (PyExc_AttributeError, "curve index out of range")); } /* right now, there are only two curve types, nurb and bezier. */ is_nurb = ptrnurb->bp ? 1 : 0; ret_val = PyInt_FromLong ((long) is_nurb); if (ret_val) return ret_val; /* oops */ return (EXPP_ReturnPyObjError (PyExc_RuntimeError, "couldn't get curve type")); } /*****************************************************************************/ /* Function: CurveDeAlloc */ /* Description: This is a callback function for the BPy_Curve type. It is */ /* the destructor function. */ /*****************************************************************************/ static void CurveDeAlloc (BPy_Curve * self) { PyObject_DEL (self); } /*****************************************************************************/ /* Function: CurveGetAttr */ /* Description: This is a callback function for the BPy_Curve type. It is */ /* the function that accesses BPy_Curve "member variables" and */ /* methods. */ /*****************************************************************************/ static PyObject * CurveGetAttr (BPy_Curve * self, char *name) /* getattr */ { PyObject *attr = Py_None; if (strcmp (name, "name") == 0) attr = PyString_FromString (self->curve->id.name + 2); if (strcmp (name, "pathlen") == 0) attr = PyInt_FromLong (self->curve->pathlen); if (strcmp (name, "totcol") == 0) attr = PyInt_FromLong (self->curve->totcol); if (strcmp (name, "flag") == 0) attr = PyInt_FromLong (self->curve->flag); if (strcmp (name, "bevresol") == 0) attr = PyInt_FromLong (self->curve->bevresol); if (strcmp (name, "resolu") == 0) attr = PyInt_FromLong (self->curve->resolu); if (strcmp (name, "resolv") == 0) attr = PyInt_FromLong (self->curve->resolv); if (strcmp (name, "width") == 0) attr = PyFloat_FromDouble (self->curve->width); if (strcmp (name, "ext1") == 0) attr = PyFloat_FromDouble (self->curve->ext1); if (strcmp (name, "ext2") == 0) attr = PyFloat_FromDouble (self->curve->ext2); if (strcmp (name, "loc") == 0) return Curve_getLoc (self); if (strcmp (name, "rot") == 0) return Curve_getRot (self); if (strcmp (name, "size") == 0) return Curve_getSize (self); #if 0 if (strcmp (name, "numpts") == 0) return Curve_getNumPoints (self); #endif if (!attr) return (EXPP_ReturnPyObjError (PyExc_MemoryError, "couldn't create PyObject")); if (attr != Py_None) return attr; /* member attribute found, return it */ /* not an attribute, search the methods table */ return Py_FindMethod (BPy_Curve_methods, (PyObject *) self, name); } /*****************************************************************************/ /* Function: CurveSetAttr */ /* Description: This is a callback function for the BPy_Curve type. It is the */ /* function that sets Curve Data attributes (member variables). */ /*****************************************************************************/ static int CurveSetAttr (BPy_Curve * self, char *name, PyObject * value) { PyObject *valtuple; PyObject *error = NULL; valtuple = Py_BuildValue ("(O)", value); /* resolu resolv width ext1 ext2 */ if (!valtuple) return EXPP_ReturnIntError (PyExc_MemoryError, "CurveSetAttr: couldn't create PyTuple"); if (strcmp (name, "name") == 0) error = Curve_setName (self, valtuple); else if (strcmp (name, "pathlen") == 0) error = Curve_setPathLen (self, valtuple); else if (strcmp (name, "resolu") == 0) error = Curve_setResolu (self, valtuple); else if (strcmp (name, "resolv") == 0) error = Curve_setResolv (self, valtuple); else if (strcmp (name, "width") == 0) error = Curve_setWidth (self, valtuple); else if (strcmp (name, "ext1") == 0) error = Curve_setExt1 (self, valtuple); else if (strcmp (name, "ext2") == 0) error = Curve_setExt2 (self, valtuple); else if (strcmp (name, "loc") == 0) error = Curve_setLoc (self, valtuple); else if (strcmp (name, "rot") == 0) error = Curve_setRot (self, valtuple); else if (strcmp (name, "size") == 0) error = Curve_setSize (self, valtuple); else { /* Error */ Py_DECREF (valtuple); if ((strcmp (name, "Types") == 0) || (strcmp (name, "Modes") == 0)) return (EXPP_ReturnIntError (PyExc_AttributeError, "constant dictionary -- cannot be changed")); else return (EXPP_ReturnIntError (PyExc_KeyError, "attribute not found")); } Py_DECREF (valtuple); if (error != Py_None) return -1; Py_DECREF (Py_None); return 0; } /*****************************************************************************/ /* Function: CurveRepr */ /* Description: This is a callback function for the BPy_Curve type. It */ /* builds a meaninful string to represent curve objects. */ /*****************************************************************************/ static PyObject * CurveRepr (BPy_Curve * self) /* used by 'repr' */ { return PyString_FromFormat ("[Curve \"%s\"]", self->curve->id.name + 2); } PyObject * Curve_CreatePyObject (struct Curve * curve) { BPy_Curve *blen_object; blen_object = (BPy_Curve *) PyObject_NEW (BPy_Curve, &Curve_Type); if (blen_object == NULL) { return (NULL); } blen_object->curve = curve; return ((PyObject *) blen_object); } int Curve_CheckPyObject (PyObject * py_obj) { return (py_obj->ob_type == &Curve_Type); } struct Curve * Curve_FromPyObject (PyObject * py_obj) { BPy_Curve *blen_obj; blen_obj = (BPy_Curve *) py_obj; return (blen_obj->curve); }