938                           pCvVoronoiEdge pEdge_left_prev,
2639     pCvVoronoiEdge pEdge_left_prev = NULL;  in _cvJoinChains()  local
2676             _cvStickEdgeLeftBegin(pEdge1,pEdge_left_prev,pSite_left);  in _cvJoinChains()
2687             _cvStickEdgeLeftBegin(pEdge1,pEdge_left_prev,pSite_left);  in _cvJoinChains()
2788                 pEdge_left_prev = pEdge_left->twin_edge;  in _cvJoinChains()
2789                 if(!pEdge_left_prev)  in _cvJoinChains()
2791                 pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvJoinChains()
2798                 pSite_left = pEdge_left_prev->site;  in _cvJoinChains()
2818                 pEdge_left_prev = pEdge_left->twin_edge;  in _cvJoinChains()
2819                 if(!pEdge_left_prev)  in _cvJoinChains()
2821                 pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvJoinChains()
2822                 pSite_left = pEdge_left_prev->site;  in _cvJoinChains()
2847                     pEdge_left_prev = pEdge_left->twin_edge;  in _cvJoinChains()
2848                     if(!pEdge_left_prev)  in _cvJoinChains()
2850                     pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvJoinChains()
2851                     pSite_left = pEdge_left_prev->site;  in _cvJoinChains()
2866                     pEdge_left_prev = pEdge_left->twin_edge;  in _cvJoinChains()
2867                     if(!pEdge_left_prev)  in _cvJoinChains()
2869                     pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvJoinChains()
2870                     pSite_left = pEdge_left_prev->site;  in _cvJoinChains()
2891                 pEdge_left_prev = pEdge1;  in _cvJoinChains()
3205     pCvVoronoiEdge pEdge_left_prev = NULL;  in _cvMergeVD()  local
3230         if(pEdge_left_prev != NULL)  in _cvMergeVD()
3231             _cvStickEdgeLeftBegin(pEdge1,pEdge_left_prev,pSite_left);  in _cvMergeVD()
3279             pEdge_left_prev = pEdge_left->twin_edge;  in _cvMergeVD()
3280             if(!pEdge_left_prev)  in _cvMergeVD()
3282             pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvMergeVD()
3283             pSite_left = pEdge_left_prev->site;  in _cvMergeVD()
3307             pEdge_left_prev = pEdge_left->twin_edge;  in _cvMergeVD()
3308             if(!pEdge_left_prev)  in _cvMergeVD()
3310             pEdge_left_cur = pEdge_left_prev->next_edge;  in _cvMergeVD()
3311             pSite_left = pEdge_left_prev->site;  in _cvMergeVD()
3328             pEdge_left_prev = pEdge1;  in _cvMergeVD()
3344         _cvStickEdgeLeftBegin(pEdge1_first,pEdge_left_prev,pSite_left_first);  in _cvMergeVD()
4367                           pCvVoronoiEdge pEdge_left_prev,  in _cvStickEdgeLeftBegin()  argument
4370     pEdge->prev_edge = pEdge_left_prev;  in _cvStickEdgeLeftBegin()
4372     if(pEdge_left_prev == NULL)  in _cvStickEdgeLeftBegin()
4376         pEdge_left_prev->node2 = pEdge->node1;  in _cvStickEdgeLeftBegin()
4377         pEdge_left_prev->next_edge = pEdge;  in _cvStickEdgeLeftBegin()