From 719c9febac2eaff9483fda487b57684afbb59bb2 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Wed, 05 Mar 2014 16:47:50 +0000
Subject: [PATCH] dont know

---
 src/bond.c |   62 +++++++++++++++++++++++++++++++
 1 files changed, 62 insertions(+), 0 deletions(-)

diff --git a/src/bond.c b/src/bond.c
index af39532..7e98110 100644
--- a/src/bond.c
+++ b/src/bond.c
@@ -30,10 +30,72 @@
 	blist->bond[blist->n - 1]->vtx2=vtx2;
 	blist->bond[blist->n - 1]->tainted=0;
     //Should we calculate bond length NOW?
+
+
+	
 	
 	return blist->bond[blist->n-1];
 }
 
+
+/* Two triangles are assigned to the bond. Bond must already be initialized. */
+ts_bool bond_assign_triangles(ts_bond *bond){
+	ts_vertex *vtx1=bond->vtx1, *vtx2=bond->vtx2;
+	ts_uint i,j,k;
+	ts_uint i1=0,i2=0,i3=0,im=0;
+	ts_triangle *ttria;
+	for(i=0,k=0;i<vtx1->tristar_no;i++){
+		for(j=0;j<3;j++){
+			if(vtx1->tristar[i]->vertex[j]==vtx2){
+				//triangle found;
+				bond->tria[k]=vtx1->tristar[i];
+				k++;
+			}
+		}
+	}
+	if(k<2) return TS_FAIL;
+
+	//We will sort the triangles so, they are oriented as km and kp for bondflip
+	for(i=0;i<3;i++){
+		if(bond->tria[0]->vertex[i]==vtx1){
+			i1=i;
+		}
+		else if(bond->tria[0]->vertex[i]==vtx2){
+			i2=i;
+		}
+		else i3=i;
+	}
+
+	if(i1>i2 || (i1==0 && i2==2)){
+		//pozitivna orientacija!
+		ttria=bond->tria[0];
+		bond->tria[0]=bond->tria[1];
+		bond->tria[1]=ttria;	
+		bond->adjvtx[1]=bond->tria[0]->vertex[i3];
+		im=0;
+	}
+	else{
+		bond->adjvtx[0]=bond->tria[0]->vertex[i3];
+		im=1;
+	}
+	
+		for(i=0;i<3;i++){
+		if(bond->tria[1]->vertex[i]==vtx1){
+			i1=i;
+		}
+		else if(bond->tria[1]->vertex[i]==vtx2){
+			i2=i;
+		}
+		else i3=i;
+	}
+		bond->adjvtx[im]=bond->tria[1]->vertex[i3];
+#ifdef DEBUG
+	if(bond->adjvtx[0]==NULL) fatal("AdjVTX[0] is NULL",1);
+	if(bond->adjvtx[1]==NULL) fatal("AdjVTX[1] is NULL",1);
+#endif
+	return TS_SUCCESS;
+}
+
 ts_bool bond_list_free(ts_bond_list *blist){
     ts_uint i;
     for(i=0;i<blist->n;i++){

--
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