static void curve_to_filledpoly(Curve *cu, ListBase *UNUSED(nurb), ListBase *dispbase)
{
if (!CU_DO_2DFILL(cu))
return;
if (dispbase->first && ((DispList *) dispbase->first)->type == DL_SURF) {
bevels_to_filledpoly(cu, dispbase);
}
else {
const float z_up[3] = {0.0f, 0.0f, 1.0f};
BKE_displist_fill(dispbase, dispbase, z_up, false);
}
}
static void bevels_to_filledpoly(Curve *cu, ListBase *dispbase)
{
const float z_up[3] = {0.0f, 0.0f, 1.0f};
ListBase front, back;
DispList *dl, *dlnew;
float *fp, *fp1;
int a, dpoly;
BLI_listbase_clear(&front);
BLI_listbase_clear(&back);
dl = dispbase->first;
while (dl) {
if (dl->type == DL_SURF) {
if ((dl->flag & DL_CYCL_V) && (dl->flag & DL_CYCL_U) == 0) {
if ((cu->flag & CU_BACK) && (dl->flag & DL_BACK_CURVE)) {
dlnew = MEM_callocN(sizeof(DispList), "filldisp");
BLI_addtail(&front, dlnew);
dlnew->verts = fp1 = MEM_mallocN(sizeof(float) * 3 * dl->parts, "filldisp1");
dlnew->nr = dl->parts;
dlnew->parts = 1;
dlnew->type = DL_POLY;
dlnew->flag = DL_BACK_CURVE;
dlnew->col = dl->col;
dlnew->charidx = dl->charidx;
fp = dl->verts;
dpoly = 3 * dl->nr;
a = dl->parts;
while (a--) {
copy_v3_v3(fp1, fp);
fp1 += 3;
fp += dpoly;
}
}
if ((cu->flag & CU_FRONT) && (dl->flag & DL_FRONT_CURVE)) {
dlnew = MEM_callocN(sizeof(DispList), "filldisp");
BLI_addtail(&back, dlnew);
dlnew->verts = fp1 = MEM_mallocN(sizeof(float) * 3 * dl->parts, "filldisp1");
dlnew->nr = dl->parts;
dlnew->parts = 1;
dlnew->type = DL_POLY;
dlnew->flag = DL_FRONT_CURVE;
dlnew->col = dl->col;
dlnew->charidx = dl->charidx;
fp = dl->verts + 3 * (dl->nr - 1);
dpoly = 3 * dl->nr;
a = dl->parts;
while (a--) {
copy_v3_v3(fp1, fp);
fp1 += 3;
fp += dpoly;
}
}
}
}
dl = dl->next;
}
BKE_displist_fill(&front, dispbase, z_up, true);
BKE_displist_fill(&back, dispbase, z_up, false);
BKE_displist_free(&front);
BKE_displist_free(&back);
BKE_displist_fill(dispbase, dispbase, z_up, false);
}
/* PolyFill function, uses Blenders scanfill to fill multiple poly lines */
static PyObject *M_Geometry_tessellate_polygon(PyObject *UNUSED(self), PyObject *polyLineSeq)
{
PyObject *tri_list; /*return this list of tri's */
PyObject *polyLine, *polyVec;
int i, len_polylines, len_polypoints, ls_error = 0;
/* display listbase */
ListBase dispbase = {NULL, NULL};
DispList *dl;
float *fp; /*pointer to the array of malloced dl->verts to set the points from the vectors */
int index, *dl_face, totpoints = 0;
if (!PySequence_Check(polyLineSeq)) {
PyErr_SetString(PyExc_TypeError,
"expected a sequence of poly lines");
return NULL;
}
len_polylines = PySequence_Size(polyLineSeq);
for (i = 0; i < len_polylines; i++) {
polyLine = PySequence_GetItem(polyLineSeq, i);
if (!PySequence_Check(polyLine)) {
BKE_displist_free(&dispbase);
Py_XDECREF(polyLine); /* may be null so use Py_XDECREF*/
PyErr_SetString(PyExc_TypeError,
"One or more of the polylines is not a sequence of mathutils.Vector's");
return NULL;
}
len_polypoints = PySequence_Size(polyLine);
if (len_polypoints > 0) { /* don't bother adding edges as polylines */
#if 0
if (EXPP_check_sequence_consistency(polyLine, &vector_Type) != 1) {
freedisplist(&dispbase);
Py_DECREF(polyLine);
PyErr_SetString(PyExc_TypeError,
"A point in one of the polylines is not a mathutils.Vector type");
return NULL;
}
#endif
dl = MEM_callocN(sizeof(DispList), "poly disp");
BLI_addtail(&dispbase, dl);
dl->type = DL_INDEX3;
dl->nr = len_polypoints;
dl->type = DL_POLY;
dl->parts = 1; /* no faces, 1 edge loop */
dl->col = 0; /* no material */
dl->verts = fp = MEM_callocN(sizeof(float) * 3 * len_polypoints, "dl verts");
dl->index = MEM_callocN(sizeof(int) * 3 * len_polypoints, "dl index");
for (index = 0; index < len_polypoints; index++, fp += 3) {
polyVec = PySequence_GetItem(polyLine, index);
if (VectorObject_Check(polyVec)) {
if (BaseMath_ReadCallback((VectorObject *)polyVec) == -1)
ls_error = 1;
fp[0] = ((VectorObject *)polyVec)->vec[0];
fp[1] = ((VectorObject *)polyVec)->vec[1];
if (((VectorObject *)polyVec)->size > 2)
fp[2] = ((VectorObject *)polyVec)->vec[2];
else
fp[2] = 0.0f; /* if its a 2d vector then set the z to be zero */
}
else {
ls_error = 1;
}
totpoints++;
Py_DECREF(polyVec);
}
}
Py_DECREF(polyLine);
}
if (ls_error) {
BKE_displist_free(&dispbase); /* possible some dl was allocated */
PyErr_SetString(PyExc_TypeError,
"A point in one of the polylines "
"is not a mathutils.Vector type");
return NULL;
}
else if (totpoints) {
/* now make the list to return */
BKE_displist_fill(&dispbase, &dispbase, 0);
/* The faces are stored in a new DisplayList
* thats added to the head of the listbase */
dl = dispbase.first;
tri_list = PyList_New(dl->parts);
if (!tri_list) {
BKE_displist_free(&dispbase);
PyErr_SetString(PyExc_RuntimeError,
"failed to make a new list");
return NULL;
}
index = 0;
dl_face = dl->index;
while (index < dl->parts) {
PyList_SET_ITEM(tri_list, index, Py_BuildValue("iii", dl_face[0], dl_face[1], dl_face[2]));
dl_face += 3;
index++;
}
BKE_displist_free(&dispbase);
}
else {
/* no points, do this so scripts don't barf */
BKE_displist_free(&dispbase); /* possible some dl was allocated */
tri_list = PyList_New(0);
}
return tri_list;
}
