/* turns Mesh into editmesh */
void make_editMesh(Scene *scene, Object *ob)
{
Mesh *me= ob->data;
MFace *mface;
MVert *mvert;
MSelect *mselect;
KeyBlock *actkey;
EditMesh *em;
EditVert *eve, **evlist, *eve1, *eve2, *eve3, *eve4;
EditFace *efa, *efa_last_sel= NULL;
EditEdge *eed;
EditSelection *ese;
float *co, (*keyco)[3]= NULL;
int tot, a, eekadoodle= 0;
const short is_paint_face_sel= paint_facesel_test(ob);
const short is_paint_vert_sel= is_paint_face_sel ? FALSE : paint_vertsel_test(ob);
if(me->edit_mesh==NULL)
me->edit_mesh= MEM_callocN(sizeof(EditMesh), "editmesh");
else
/* because of reload */
free_editMesh(me->edit_mesh);
em= me->edit_mesh;
em->selectmode= scene->toolsettings->selectmode; // warning needs to be synced
em->act_face = NULL;
em->totvert= tot= me->totvert;
em->totedge= me->totedge;
em->totface= me->totface;
if(tot==0) {
return;
}
if(ob->actcol > 0)
em->mat_nr= ob->actcol-1;
/* initialize fastmalloc for editmesh */
init_editmesh_fastmalloc(em, me->totvert, me->totedge, me->totface);
actkey = ob_get_keyblock(ob);
if(actkey) {
/* undo-ing in past for previous editmode sessions gives corrupt 'keyindex' values */
undo_editmode_clear();
keyco= actkey->data;
em->shapenr= ob->shapenr;
}
/* make editverts */
CustomData_copy(&me->vdata, &em->vdata, CD_MASK_EDITMESH, CD_CALLOC, 0);
mvert= me->mvert;
evlist= (EditVert **)MEM_mallocN(tot*sizeof(void *),"evlist");
for(a=0; a<tot; a++, mvert++) {
co= mvert->co;
/* edit the shape key coordinate if available */
if(keyco && a < actkey->totelem)
co= keyco[a];
eve= addvertlist(em, co, NULL);
evlist[a]= eve;
/* face select sets selection in next loop */
if(!is_paint_face_sel)
eve->f |= (mvert->flag & SELECT);
if (mvert->flag & ME_HIDE) eve->h= 1;
normal_short_to_float_v3(eve->no, mvert->no);
eve->bweight= ((float)mvert->bweight)/255.0f;
/* lets overwrite the keyindex of the editvert
* with the order it used to be in before
* editmode
*/
eve->keyindex = a;
CustomData_to_em_block(&me->vdata, &em->vdata, a, &eve->data);
}
if(actkey && actkey->totelem!=me->totvert);
else {
MEdge *medge= me->medge;
CustomData_copy(&me->edata, &em->edata, CD_MASK_EDITMESH, CD_CALLOC, 0);
/* make edges */
for(a=0; a<me->totedge; a++, medge++) {
eed= addedgelist(em, evlist[medge->v1], evlist[medge->v2], NULL);
/* eed can be zero when v1 and v2 are identical, dxf import does this... */
if(eed) {
int is_sel;
if (is_paint_vert_sel) {
/* when from vertex select, flush flags to edges,
* allow selection, code below handles editmode selection conversion */
is_sel= (eed->v1->f & SELECT) && (eed->v2->f & SELECT);
}
else {
is_sel= (medge->flag & SELECT);
}
eed->crease= ((float)medge->crease)/255.0f;
eed->bweight= ((float)medge->bweight)/255.0f;
if(medge->flag & ME_SEAM) eed->seam= 1;
if(medge->flag & ME_SHARP) eed->sharp = 1;
if(medge->flag & ME_FGON) eed->h= EM_FGON; // 2 different defines!
if(medge->flag & ME_HIDE) eed->h |= 1;
if(is_sel) eed->f |= SELECT;
if(em->selectmode==SCE_SELECT_EDGE)
EM_select_edge(eed, eed->f & SELECT); // force edge selection to vertices, seems to be needed ...
CustomData_to_em_block(&me->edata,&em->edata, a, &eed->data);
}
}
CustomData_copy(&me->fdata, &em->fdata, CD_MASK_EDITMESH, CD_CALLOC, 0);
/* make faces */
mface= me->mface;
for(a=0; a<me->totface; a++, mface++) {
eve1= evlist[mface->v1];
eve2= evlist[mface->v2];
if(!mface->v3) eekadoodle= 1;
eve3= evlist[mface->v3];
if(mface->v4) eve4= evlist[mface->v4]; else eve4= NULL;
efa= addfacelist(em, eve1, eve2, eve3, eve4, NULL, NULL);
if(efa) {
CustomData_to_em_block(&me->fdata, &em->fdata, a, &efa->data);
efa->mat_nr= mface->mat_nr;
efa->flag= mface->flag & ~ME_HIDE;
/* select and hide face flag */
if(mface->flag & ME_HIDE) {
efa->h= 1;
} else {
int is_sel;
if (!is_paint_vert_sel) {
is_sel= (mface->flag & ME_FACE_SEL);
}
else {
/* when from vertex select, flush flags to edges,
* allow selection, code below handles editmode selection conversion */
is_sel= ( (efa->v1->f & SELECT) &&
(efa->v2->f & SELECT) &&
(efa->v3->f & SELECT) &&
(efa->v4 == NULL || efa->v4->f & SELECT)
);
}
if (a==me->act_face) {
EM_set_actFace(em, efa);
}
/* dont allow hidden and selected */
if(is_sel) {
efa->f |= SELECT;
if(is_paint_face_sel) {
EM_select_face(efa, 1); /* flush down */
}
efa_last_sel= efa;
}
}
}
}
}
if(EM_get_actFace(em, 0)==NULL && efa_last_sel) {
EM_set_actFace(em, efa_last_sel);
}
if(eekadoodle)
error("This Mesh has old style edgecodes, please put it in the bugtracker!");
MEM_freeN(evlist);
end_editmesh_fastmalloc(); // resets global function pointers
if(me->mselect){
//restore editselections
EM_init_index_arrays(em, 1,1,1);
mselect = me->mselect;
for(a=0; a<me->totselect; a++, mselect++){
/*check if recorded selection is still valid, if so copy into editmesh*/
if ( (mselect->type == EDITVERT && me->mvert[mselect->index].flag & SELECT) ||
(mselect->type == EDITEDGE && me->medge[mselect->index].flag & SELECT) ||
(mselect->type == EDITFACE && me->mface[mselect->index].flag & ME_FACE_SEL) )
{
ese = MEM_callocN(sizeof(EditSelection), "Edit Selection");
ese->type = mselect->type;
if(ese->type == EDITVERT) ese->data = EM_get_vert_for_index(mselect->index); else
if(ese->type == EDITEDGE) ese->data = EM_get_edge_for_index(mselect->index); else
if(ese->type == EDITFACE) ese->data = EM_get_face_for_index(mselect->index);
BLI_addtail(&(em->selected),ese);
}
}
EM_free_index_arrays();
}
/* this creates coherent selections. also needed for older files */
EM_selectmode_set(em);
/* paranoia check to enforce hide rules */
EM_hide_reset(em);
/* sets helper flags which arent saved */
EM_fgon_flags(em);
if (EM_get_actFace(em, 0)==NULL) {
EM_set_actFace(em, em->faces.first ); /* will use the first face, this is so we alwats have an active face */
}
}
static void addedgeface_mesh(EditMesh *em, wmOperator *op)
{
EditVert *eve, *neweve[4];
EditEdge *eed;
EditFace *efa;
short amount=0;
/* how many selected ? */
if(em->selectmode & SCE_SELECT_EDGE) {
/* in edge mode finding selected vertices means flushing down edge codes... */
/* can't make face with only edge selection info... */
EM_selectmode_set(em);
}
for(eve= em->verts.first; eve; eve= eve->next) {
if(eve->f & SELECT) {
amount++;
if(amount>4) break;
neweve[amount-1]= eve;
}
}
if(amount==2) {
eed= addedgelist(em, neweve[0], neweve[1], NULL);
EM_select_edge(eed, 1);
// XXX DAG_id_tag_update(obedit->data, 0);
return;
}
else if(amount > 4) {
addfaces_from_edgenet(em);
return;
}
else if(amount<2) {
BKE_report(op->reports, RPT_WARNING, "More vertices are needed to make an edge/face");
return;
}
efa= NULL; // check later
if(amount==3) {
if(exist_face_overlaps(em, neweve[0], neweve[1], neweve[2], NULL)==0) {
efa= addfacelist(em, neweve[0], neweve[1], neweve[2], 0, NULL, NULL);
EM_select_face(efa, 1);
}
else BKE_report(op->reports, RPT_WARNING, "The selected vertices already form a face");
}
else if(amount==4) {
/* this test survives when theres 2 triangles */
if(exist_face(em, neweve[0], neweve[1], neweve[2], neweve[3])==0) {
int tria= 0;
/* remove trias if they exist, 4 cases.... */
if(exist_face(em, neweve[0], neweve[1], neweve[2], NULL)) tria++;
if(exist_face(em, neweve[0], neweve[1], neweve[3], NULL)) tria++;
if(exist_face(em, neweve[0], neweve[2], neweve[3], NULL)) tria++;
if(exist_face(em, neweve[1], neweve[2], neweve[3], NULL)) tria++;
if(tria==2) join_triangles(em);
else if(exist_face_overlaps(em, neweve[0], neweve[1], neweve[2], neweve[3])==0) {
/* If there are 4 Verts, But more selected edges, we need to call addfaces_from_edgenet */
EditEdge *eedcheck;
int count;
count = 0;
for(eedcheck= em->edges.first; eedcheck; eedcheck= eedcheck->next) {
if(eedcheck->f & SELECT) {
count++;
}
}
if(count++ > 4){
addfaces_from_edgenet(em);
return;
} else {
/* if 4 edges exist, we just create the face, convex or not */
efa= addface_from_edges(em);
if(efa==NULL) {
/* the order of vertices can be anything, 6 cases to check */
if( convex(neweve[0]->co, neweve[1]->co, neweve[2]->co, neweve[3]->co) ) {
efa= addfacelist(em, neweve[0], neweve[1], neweve[2], neweve[3], NULL, NULL);
}
else if( convex(neweve[0]->co, neweve[2]->co, neweve[3]->co, neweve[1]->co) ) {
efa= addfacelist(em, neweve[0], neweve[2], neweve[3], neweve[1], NULL, NULL);
}
else if( convex(neweve[0]->co, neweve[2]->co, neweve[1]->co, neweve[3]->co) ) {
efa= addfacelist(em, neweve[0], neweve[2], neweve[1], neweve[3], NULL, NULL);
}
else if( convex(neweve[0]->co, neweve[1]->co, neweve[3]->co, neweve[2]->co) ) {
efa= addfacelist(em, neweve[0], neweve[1], neweve[3], neweve[2], NULL, NULL);
}
else if( convex(neweve[0]->co, neweve[3]->co, neweve[2]->co, neweve[1]->co) ) {
efa= addfacelist(em, neweve[0], neweve[3], neweve[2], neweve[1], NULL, NULL);
}
else if( convex(neweve[0]->co, neweve[3]->co, neweve[1]->co, neweve[2]->co) ) {
efa= addfacelist(em, neweve[0], neweve[3], neweve[1], neweve[2], NULL, NULL);
}
else BKE_report(op->reports, RPT_WARNING, "cannot find nice quad from concave set of vertices");
}
}
}
else BKE_report(op->reports, RPT_WARNING, "The selected vertices already form a face");
}
else BKE_report(op->reports, RPT_WARNING, "The selected vertices already form a face");
}
if(efa) {
EM_select_face(efa, 1);
fix_new_face(em, efa);
recalc_editnormals(em);
}
}