//------------------------------------ADDS----------------------------------------//
/**
* Method used to add a face properly for internal methods
*
* @param v1 a face vertex
* @param v2 a face vertex
* @param v3 a face vertex
*/
private Face addFace(Vertex v1, Vertex v2, Vertex v3)
{
if (!(v1.equals(v2) || v1.equals(v3) || v2.equals(v3)))
{
Face face = new Face(v1, v2, v3);
if (face.getArea() > TOL)
{
faces.Add(face);
return(face);
}
else
{
return(null);
}
}
else
{
return(null);
}
}
/**
* Face breaker for VERTEX-FACE-EDGE / EDGE-FACE-VERTEX
*
* @param facePos face position on the faces array
* @param newPos new vertex position
* @param endVertex vertex used for splitting
*/
private void breakFaceInTwo(int facePos, Point3d newPos, Vertex endVertex)
{
Face face = faces[facePos];
faces.RemoveAt(facePos);
Vertex vertex = addVertex(newPos, face.v1.getColor(), Vertex.BOUNDARY);
if (endVertex.equals(face.v1))
{
addFace(face.v1, vertex, face.v3);
addFace(vertex, face.v2, face.v3);
}
else if (endVertex.equals(face.v2))
{
addFace(face.v2, vertex, face.v1);
addFace(vertex, face.v3, face.v1);
}
else
{
addFace(face.v3, vertex, face.v2);
addFace(vertex, face.v1, face.v2);
}
}
/**
* Method used to add a vertex properly for internal methods
*
* @param pos vertex position
* @param color vertex color
* @param status vertex status
* @return the vertex inserted (if a similar vertex already exists, this is returned)
*/
private Vertex addVertex(Point3d pos, Color3f color, int status)
{
int i;
//if already there is an equal vertex, it is not inserted
Vertex vertex = new Vertex(pos, color, status);
for (i = 0; i < vertices.Count; i++)
{
if (vertex.equals(vertices[i]))
break;
}
if (i == vertices.Count)
{
vertices.Add(vertex);
return vertex;
}
else
{
vertex = vertices[i];
vertex.setStatus(status);
return vertex;
}
}
/**
* Face breaker for EDGE-FACE-EDGE
*
* @param facePos face position on the faces array
* @param newPos1 new vertex position
* @param newPos2 new vertex position
* @param startVertex vertex used the new faces creation
* @param endVertex vertex used for the new faces creation
*/
private void breakFaceInThree(int facePos, Point3d newPos1, Point3d newPos2, Vertex startVertex, Vertex endVertex)
{
Face face = faces[facePos];
faces.RemoveAt(facePos);
Vertex vertex1 = addVertex(newPos1, face.v1.getColor(), Vertex.BOUNDARY);
Vertex vertex2 = addVertex(newPos2, face.v1.getColor(), Vertex.BOUNDARY);
if (startVertex.equals(face.v1) && endVertex.equals(face.v2))
{
addFace(face.v1, vertex1, vertex2);
addFace(face.v1, vertex2, face.v3);
addFace(vertex1, face.v2, vertex2);
}
else if (startVertex.equals(face.v2) && endVertex.equals(face.v1))
{
addFace(face.v1, vertex2, vertex1);
addFace(face.v1, vertex1, face.v3);
addFace(vertex2, face.v2, vertex1);
}
else if (startVertex.equals(face.v2) && endVertex.equals(face.v3))
{
addFace(face.v2, vertex1, vertex2);
addFace(face.v2, vertex2, face.v1);
addFace(vertex1, face.v3, vertex2);
}
else if (startVertex.equals(face.v3) && endVertex.equals(face.v2))
{
addFace(face.v2, vertex2, vertex1);
addFace(face.v2, vertex1, face.v1);
addFace(vertex2, face.v3, vertex1);
}
else if (startVertex.equals(face.v3) && endVertex.equals(face.v1))
{
addFace(face.v3, vertex1, vertex2);
addFace(face.v3, vertex2, face.v2);
addFace(vertex1, face.v1, vertex2);
}
else
{
addFace(face.v3, vertex2, vertex1);
addFace(face.v3, vertex1, face.v2);
addFace(vertex2, face.v1, vertex1);
}
}
//------------------------------------ADDS----------------------------------------//
/**
* Method used to add a face properly for internal methods
*
* @param v1 a face vertex
* @param v2 a face vertex
* @param v3 a face vertex
*/
private Face addFace(Vertex v1, Vertex v2, Vertex v3)
{
if (!(v1.equals(v2) || v1.equals(v3) || v2.equals(v3)))
{
Face face = new Face(v1, v2, v3);
if (face.getArea() > TOL)
{
faces.Add(face);
return face;
}
else
{
return null;
}
}
else
{
return null;
}
}