static bool FindCommonInsideEdges(AnalyzedTriangle a, AnalyzedTriangle b, out InsideEdgeLine a_edge, out InsideEdgeLine b_edge)
{
//2 contact triangles share GlyphBoneJoint.
EdgeLine find_b_edge = b.e0;
InsideEdgeLine matching_inside_edge_of_a = null;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
//--------------
find_b_edge = b.e1;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
find_b_edge = b.e2;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
a_edge = b_edge = null;
return(false);
}
static void CreateBoneJointIfNeed(
InsideEdgeLine insideEdge,
AnalyzedTriangle first_p_tri,
Joint firstJoint,
List <Bone> newlyCreatedBones,
List <Bone> glyphBones)
{
if (insideEdge != null &&
insideEdge._inside_joint == null)
{
InsideEdgeLine mainEdge = insideEdge;
EdgeLine nbEdge = null;
if (FindSameCoordEdgeLine(first_p_tri.N0, mainEdge, out nbEdge) ||
FindSameCoordEdgeLine(first_p_tri.N1, mainEdge, out nbEdge) ||
FindSameCoordEdgeLine(first_p_tri.N2, mainEdge, out nbEdge))
{
//confirm that nbEdge is INSIDE edge
if (nbEdge.IsInside)
{
Joint joint = new Joint((InsideEdgeLine)nbEdge, mainEdge);
Bone bone = new Bone(mainEdge._inside_joint, firstJoint);
newlyCreatedBones.Add(bone);
glyphBones.Add(bone);
}
else
{
//?
}
}
else
{
//?
}
}
}
static void CreateTipBoneIfNeed(
InsideEdgeLine insideEdge, Joint joint,
List <Bone> newlyCreatedBones, List <Bone> glyphBones)
{
if (insideEdge != null &&
insideEdge._inside_joint != null &&
insideEdge._inside_joint != joint)
{
//create connection
Bone tipBone = new Bone(insideEdge._inside_joint, joint);
newlyCreatedBones.Add(tipBone);
glyphBones.Add(tipBone);
}
}
internal Joint(
InsideEdgeLine p_contact_edge,
InsideEdgeLine q_contact_edge)
{
//both p and q is INSIDE, contact edge
_p_contact_edge = p_contact_edge;
_q_contact_edge = q_contact_edge;
//this is original x,y
Vector2f midpos = p_contact_edge.GetMidPoint();
_fitX = midpos.X;
_fitY = midpos.Y;
#if DEBUG
if (p_contact_edge._inside_joint != null ||
q_contact_edge._inside_joint != null)
{
throw new System.NotSupportedException();
}
#endif
p_contact_edge._inside_joint = this;
q_contact_edge._inside_joint = this;
}