Cross Reference: /xsrc/external/mit/glu/dist/src/libtess/mesh.c

Lines Matching defs:eOrg
305 /* __gl_meshSplice( eOrg, eDst ) is the basic operation for changing the
307  *	eOrg->Onext <- OLD( eDst->Onext )
308  *	eDst->Onext <- OLD( eOrg->Onext )
312  *  - if eOrg->Org != eDst->Org, the two vertices are merged together
313  *  - if eOrg->Org == eDst->Org, the origin is split into two vertices
314  * In both cases, eDst->Org is changed and eOrg->Org is untouched.
317  *  - if eOrg->Lface == eDst->Lface, one loop is split into two
318  *  - if eOrg->Lface != eDst->Lface, two distinct loops are joined into one
319  * In both cases, eDst->Lface is changed and eOrg->Lface is unaffected.
322  * If eDst == eOrg, the operation has no effect.
323  * If eDst == eOrg->Lnext, the new face will have a single edge.
324  * If eDst == eOrg->Lprev, the old face will have a single edge.
325  * If eDst == eOrg->Onext, the new vertex will have a single edge.
326  * If eDst == eOrg->Oprev, the old vertex will have a single edge.
328 int __gl_meshSplice( GLUhalfEdge *eOrg, GLUhalfEdge *eDst )
333   if( eOrg == eDst ) return 1;
335   if( eDst->Org != eOrg->Org ) {
338     KillVertex( eDst->Org, eOrg->Org );
340   if( eDst->Lface != eOrg->Lface ) {
343     KillFace( eDst->Lface, eOrg->Lface );
347   Splice( eDst, eOrg );
356     MakeVertex( newVertex, eDst, eOrg->Org );
357     eOrg->Org->anEdge = eOrg;
366     MakeFace( newFace, eDst, eOrg->Lface );
367     eOrg->Lface->anEdge = eOrg;
442 /* __gl_meshAddEdgeVertex( eOrg ) creates a new edge eNew such that
443  * eNew == eOrg->Lnext, and eNew->Dst is a newly created vertex.
444  * eOrg and eNew will have the same left face.
446 GLUhalfEdge *__gl_meshAddEdgeVertex( GLUhalfEdge *eOrg )
449   GLUhalfEdge *eNew = MakeEdge( eOrg );
455   Splice( eNew, eOrg->Lnext );
458   eNew->Org = eOrg->Dst;
465   eNew->Lface = eNewSym->Lface = eOrg->Lface;
471 /* __gl_meshSplitEdge( eOrg ) splits eOrg into two edges eOrg and eNew,
472  * such that eNew == eOrg->Lnext.  The new vertex is eOrg->Dst == eNew->Org.
473  * eOrg and eNew will have the same left face.
475 GLUhalfEdge *__gl_meshSplitEdge( GLUhalfEdge *eOrg )
478   GLUhalfEdge *tempHalfEdge= __gl_meshAddEdgeVertex( eOrg );
483   /* Disconnect eOrg from eOrg->Dst and connect it to eNew->Org */
484   Splice( eOrg->Sym, eOrg->Sym->Oprev );
485   Splice( eOrg->Sym, eNew );
488   eOrg->Dst = eNew->Org;
489   eNew->Dst->anEdge = eNew->Sym;	/* may have pointed to eOrg->Sym */
490   eNew->Rface = eOrg->Rface;
491   eNew->winding = eOrg->winding;	/* copy old winding information */
492   eNew->Sym->winding = eOrg->Sym->winding;
498 /* __gl_meshConnect( eOrg, eDst ) creates a new edge from eOrg->Dst
500  * If eOrg->Lface == eDst->Lface, this splits one loop into two,
504  * If (eOrg == eDst), the new face will have only two edges.
505  * If (eOrg->Lnext == eDst), the old face is reduced to a single edge.
506  * If (eOrg->Lnext->Lnext == eDst), the old face is reduced to two edges.
508 GLUhalfEdge *__gl_meshConnect( GLUhalfEdge *eOrg, GLUhalfEdge *eDst )
512   GLUhalfEdge *eNew = MakeEdge( eOrg );
517   if( eDst->Lface != eOrg->Lface ) {
520     KillFace( eDst->Lface, eOrg->Lface );
524   Splice( eNew, eOrg->Lnext );
528   eNew->Org = eOrg->Dst;
530   eNew->Lface = eNewSym->Lface = eOrg->Lface;
533   eOrg->Lface->anEdge = eNewSym;
540     MakeFace( newFace, eNew, eOrg->Lface );