| | |
| | | return vlist; |
| | | } |
| | | |
| | | |
| | | ts_bool vertex_list_add_vtx(ts_vertex_list *vlist, ts_vertex *vtx){ |
| | | |
| | | #ifdef DEBUG |
| | | if(vtx==NULL || vlist==NULL) return TS_FAIL; |
| | | #endif |
| | | if(vlist->list_size < vlist->n+1){ |
| | | vlist->vtx=(ts_vertex **)realloc(vlist->vtx, (vlist->list_size+TS_VLIST_CHUNK)*sizeof(ts_vertex*)); |
| | | if(vlist->vtx==NULL){ |
| | | fatal("Error in vertex_list_add. Could not reallocate memory space.",9999); |
| | | } |
| | | vlist->list_size+=TS_VLIST_CHUNK; |
| | | } |
| | | vlist->vtx[n]=vtx; |
| | | vlist->n++; |
| | | return TS_SUCCESS; |
| | | } |
| | | |
| | | |
| | | /* Idea is to delete vertex by removing it from list. The emply place is then filled in by the last |
| | | vertex in the list. List can then be resized by one -- unless resize is required when max list size - |
| | | real list size > predefined value */ |
| | | ts_bool vertex_list_remove_vtx(ts_vertex_list *vlist, ts_vertex *vtx){ |
| | | #ifdef DEBUG |
| | | if(vtx==NULL || vlist==NULL) return TS_FAIL; |
| | | #endif |
| | | for(i=0; i<vlist->n;i++){ |
| | | if(vlist->vtx[i]==vtx){ |
| | | vlist->vtx[i]=vlist->vtx[n-1]; |
| | | vlist->n--; |
| | | if(vlist->list_size-vlist->n > TS_VLIST_CHUNK){ |
| | | vlist->vtx=(ts_vertex **)realloc(vlist->vtx, (vlist->list_size-TS_VLIST_CHUNK)*sizeof(ts_vertex*)); |
| | | if(vlist->vtx==NULL){ |
| | | fatal("Error in vertex_list_add. Could not reallocate memory space.",9999); |
| | | } |
| | | vlist->list_size-=TS_VLIST_CHUNK; |
| | | } |
| | | return TS_SUCCESS; |
| | | } |
| | | } |
| | | return TS_FAIL; |
| | | } |
| | | |
| | | |
| | | ts_bool vtx_add_neighbour(ts_vertex *vtx, ts_vertex *nvtx){ |
| | | ts_uint i; |
| | | /* no neighbour can be null! */ |
| | | if(vtx==NULL || nvtx==NULL) return TS_FAIL; |
| | | |
| | | /*if it is already a neighbour don't add it to the list */ |
| | | for(i=0; i<vtx->neigh_no;i++){ |
| | | if(vtx->neigh[i]==nvtx) return TS_FAIL; |
| | | for(i=0; i<vtx->neigh->n;i++){ |
| | | if(vtx->neigh->vtx[i]==nvtx) return TS_FAIL; |
| | | } |
| | | ts_uint nn=++vtx->neigh_no; |
| | | ts_uint nn=++vtx->neigh->n; |
| | | vtx->neigh=(ts_vertex **)realloc(vtx->neigh, nn*sizeof(ts_vertex *)); |
| | | vtx->neigh[nn-1]=nvtx; |
| | | /* This was a bug in creating DIPYRAMID (the neighbours were not in right |
| | | * order). |
| | | */ |
| | | /* pa se sosedu dodamo vertex */ |
| | | /*if it is already a neighbour don't add it to the list */ |
| | | /* |
| | | for(i=0; i<nvtx->data->neigh_no;i++){ |
| | | if(nvtx->data->neigh[i]==vtx) return TS_FAIL; |
| | | } |
| | | nn=++nvtx->data->neigh_no; |
| | | nvtx->data->neigh=(ts_vertex **)realloc(nvtx->data->neigh, nn*sizeof(ts_vertex *)); |
| | | nvtx->data->neigh[nn-1]=vtx; |
| | | */ |
| | | |
| | | return TS_SUCCESS; |
| | | } |