66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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#include "MEM_guardedalloc.h"
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#include "BKE_utildefines.h"
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#include "BLI_ghash.h"
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#include "BLI_memarena.h"
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#include "BLI_blenlib.h"
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#include "BLI_arithb.h"
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#include "bmesh.h"
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#include "bmesh_operators_private.h"
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#define EXT_INPUT 1
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#define EXT_KEEP 2
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void extrude_edge_context_exec(BMesh *bm, BMOperator *op)
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{
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BMOperator splitop;
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BMOIter siter;
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BMIter iter, fiter;
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BMEdge *edge, *newedge;
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BMVert *verts[4];
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BMFace *f;
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int totflagged, rlen;
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/*initialize our sub-operators*/
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BMO_Init_Op(&splitop, BMOP_SPLIT);
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BMO_Flag_To_Slot(bm, op, BMOP_EXFACE_EDGEFACEIN, EXT_INPUT, BM_ALL);
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/*calculate geometry to keep*/
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for (edge = BMIter_New(&iter, bm, BM_EDGES, NULL); edge; edge=BMIter_Step(&iter)) {
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f = BMIter_New(&fiter, bm, BM_FACES_OF_EDGE, edge);
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rlen = 0;
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for (; f; f=BMIter_Step(&fiter)) {
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if (BMO_TestFlag(bm, f, EXT_INPUT)) rlen++;
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}
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if (rlen < 2) BMO_SetFlag(bm, edge, EXT_KEEP);
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}
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BMO_CopySlot(op, &splitop, BMOP_EXFACE_EDGEFACEIN, BMOP_SPLIT_MULTIN);
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BMO_Flag_To_Slot(bm, &splitop, BMOP_SPLIT_KEEPIN, EXT_KEEP, BM_ALL);
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BMO_Exec_Op(bm, &splitop);
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BMO_CopySlot(&splitop, op, BMOP_SPLIT_MULTOUT, BMOP_EXFACE_MULTOUT);
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edge = BMO_IterNew(&siter, bm, &splitop, BMOP_SPLIT_BOUNDS_EDGEMAP);
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for (; edge; edge=BMO_IterStep(&siter)) {
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if (BMO_InMap(bm, op, BMOP_EXFACE_EXCLUDEMAP, edge)) continue;
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newedge = *(BMEdge**)BMO_IterMapVal(&siter);
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verts[0] = edge->v1;
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verts[1] = edge->v2;
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verts[2] = newedge->v2;
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verts[3] = newedge->v1;
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//not sure what to do about example face, pass NULL for now.
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f = BM_Make_Quadtriangle(bm, verts, NULL, 4, NULL, 0);
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}
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/*cleanup*/
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BMO_Finish_Op(bm, &splitop);
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}
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