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FaceVertex_Mesh.pde
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FaceVertex_Mesh.pde
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class FaceVertex_Mesh extends Basic_Mesh{
ArrayList<IntList> vertex_list;
ArrayList<IntList> face_list;
HashMap<PVector, Integer> vertex_id;
FaceVertex_Mesh() {
build();
shape.disableStyle();
s_points.disableStyle();
}
void build() {
vertices = new ArrayList<PVector>();
vertex_list = new ArrayList<IntList>();
face_list = new ArrayList<IntList>();
vertex_id = new HashMap<PVector, Integer>();
PShape s = loadShape("wolf.obj");
int children = s.getChildCount();
for (int i = 0; i < children; i++) {
PShape child = s.getChild(i);
IntList next_vertex = new IntList();
IntList next_face = new IntList();
int total = child.getVertexCount();
for(int j=0; j< total;j++){
vertices.add(child.getVertex(j));
vertex_list.add(next_vertex);
int next_id;
if (vertex_id.containsKey(child.getVertex(j))) {
next_id = vertex_id.get(child.getVertex(j));
} else {
vertex_id.put(child.getVertex(j), vertices.size()-1);
next_id = vertices.size()-1;
}
next_face.append(next_id);
vertex_list.get(next_id).append(j);
}
face_list.add(next_face);
}
shape = createShape();
s_points = createShape();
shape.beginShape(TRIANGLES);
s_points.beginShape(POINTS);
int cnt =0 ;
for(int i =0; i < face_list.size();i++) {
PVector cvertex;
for(int nxt: face_list.get(i)) {
cvertex = vertices.get(nxt);
cnt ++;
shape.vertex(cvertex.x, cvertex.y, cvertex.z);
s_points.vertex(cvertex.x, cvertex.y, cvertex.z);
}
}
s_points.endShape();
shape.endShape();
}
void drawImmediate() {
if(mode == 3){
PShape s = createShape();
s.beginShape(POINTS);
for(int i =0; i < face_list.size();i++) {
PVector cvertex;
for(int nxt: face_list.get(i)) {
cvertex = vertices.get(nxt);
s.vertex(cvertex.x, cvertex.y, cvertex.z);
}
}
s.endShape();
shape(s, 0, -100);
}else{
PShape s = createShape();
s.beginShape(TRIANGLES);
for(int i =0; i < face_list.size();i++) {
PVector cvertex;
for(int nxt: face_list.get(i)) {
cvertex = vertices.get(nxt);
s.vertex(cvertex.x, cvertex.y, cvertex.z);
}
}
s.endShape();
shape(s, 0, -100);
}
}
}