void CttView::ADTFill(const COLORREF color){
if (m_point.size() <= 2)return;
CDC* pDC = GetWindowDC();
CPen pen1(0, 0, color);
pDC->SelectObject(&pen1);
int start, end, msz=m_point.size();
start = 10000;
end = 0;
for (int i = 0; i < msz; i++){
start = min(start, m_point[i].y);
end = max(end, m_point[i].y);
}
vector<EdgeTable> net(end+1);
net.assign(end + 1, EdgeTable());
Edge te;
int miny;
for (int i = 0; i < msz-1; i++){
te = Edge(m_point[i], m_point[i + 1], miny);
net[miny].Add(te);
}
te = Edge(m_point[msz-1], m_point[0], miny);
net[miny].Add(te);
EdgeTable adt = EdgeTable(start);
for (int i = start; i <= end; i++){
for (int j = 0; j < net[i].e.size(); j++)
adt.Add(net[i].e[j]);
for (int j = 1; j < adt.e.size(); j += 2){
pDC->MoveTo((int)adt.e[j-1].x0, i);
pDC->LineTo((int)adt.e[j].x0, i);
}
adt.Update();
}
}
void SCANLINE::pixelCompute()
{
///------------Illumination Model-------------------------
Compute_Poly_Normal(); //compute normal of all polygon
///-------------------------------------
vector< vector<float> > Ycompare;
vector< vector<float> > nearVertex;
vector< vector<float> > startVertex;
for(int poly_num = 0; poly_num< (int)front_Poly.size();poly_num++)
{
Ycompare.clear();
nearVertex.clear();
startVertex.clear();
//compute edge table
//put y value and vertex index in Ycompare
//sort by y value - buble sort
get_Ycompare(Ycompare,poly_num);
//find near vertices around start vertices
find_near_vertex(nearVertex,startVertex,Ycompare,poly_num);
EdgeTable(startVertex,nearVertex,
front_Poly,poly_num);
}//end poly_num loop
Compute_pixel_intensity();//compute Intensity on each pixel
}
