private Pontos[] GerarPoligono()
{
int j, tl = 0;
No face;
Pontos[] p;
Pontos[] pol = new Pontos[qtdePontos];
for (int i = 0; i < lFace.Count; i++)
{
face = ((No)(lFace[i]));
p = new Pontos[face.getCount()];
j = 0;
while (face != null)
{
p[j] = (Pontos)lVertAtual[face.getPos()];
j++;
face = face.getProx();
}
p[j] = p[0];
if (cbBackFaceCulling.Checked)
{
if (((Vetor)lVetorNormal[i]).getZ() > 0)
{
for (int k = 0; k < j; k++)
{
pol[tl++] = p[k];
}
}
}
else
{
for (int k = 0; k < j; k++)
{
pol[tl++] = p[k];
}
}
}
return(pol);
}
private double[] MultiplicarPontos(double[][] mat, Pontos p)
{
int i, j;
double[] vet = { p.getX(), p.getY(), p.getZ(), 1 };
double[] resul = new double[4];
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
resul[i] += vet[j] * mat[j][i];
}
}
for (i = 0; i < 4; i++)
{
resul[i] = Math.Round(resul[i]);
}
return(resul);
}
public Vetor(Pontos ab, Pontos ac)
{
this.x = (ab.getY() * ac.getZ()) - (ac.getY() * ab.getZ());
this.y = (ab.getZ() * ac.getX()) - (ac.getZ() * ab.getX());
this.z = (ab.getX() * ac.getY()) - (ab.getY() * ac.getX());
}
private void ProjecaoObliqua(double[][] mat)
{
int j;
double[] p1, p2;
No face;
Pontos[] p;
ret = imgBmp;
Reta.IniciarMatriz();
for (int i = 0; i < lFace.Count; i++)
{
face = ((No)(lFace[i]));
p = new Pontos[face.getCount()];
j = 0;
while (face != null)
{
p[j] = (Pontos)lVertAtual[face.getPos()];
j++;
face = face.getProx();
}
p[j] = p[0];
Pontos vertAB = new Pontos(p[1].getX() - p[0].getX(), p[1].getY() - p[0].getY(), p[1].getZ() - p[0].getZ());
Pontos vertAC = new Pontos(p[2].getX() - p[0].getX(), p[2].getY() - p[0].getY(), p[2].getZ() - p[0].getZ());
if (lVetorNormal.Count <= i)
{
lVetorNormal.Add(new Vetor(vertAB, vertAC));
}
else
{
lVetorNormal[i] = new Vetor(vertAB, vertAC);
}
if (cbBackFaceCulling.Checked)
{
if (((Vetor)lVetorNormal[i]).getZ() > 0)
{
for (int k = 0; k < j; k++)
{
p1 = MultiplicarPontos(mat, p[k]);
p2 = MultiplicarPontos(mat, p[k + 1]);
Reta.Bresenham((int)p1[0], (int)p1[1], (int)p2[0], (int)p2[1]);
}
}
}
else
{
for (int k = 0; k < j; k++)
{
p1 = MultiplicarPontos(mat, p[k]);
p2 = MultiplicarPontos(mat, p[k + 1]);
Reta.Bresenham((int)p1[0], (int)p1[1], (int)p2[0], (int)p2[1]);
}
}
}
Reta.AlocarBitmap(ret);
Reta.Desenhar();
if (btnColorir.Text.Equals("Colorir"))
{
// ScanLine.Scanline(Reta.getImgDta());
}
Reta.DesalocarBitmap(ret);
pictureBox.Image = ret;
imgBmp = ret;
}
private void OrtograficaLateral()
{
int j;
No face;
Pontos[] p;
ret = imgBmp;
Reta.IniciarMatriz();
for (int i = 0; i < lFace.Count; i++)
{
face = ((No)(lFace[i]));
p = new Pontos[face.getCount()];
j = 0;
while (face != null)
{
p[j] = (Pontos)lVertAtual[face.getPos()];
j++;
face = face.getProx();
}
p[j] = p[0];
Pontos vertAB = new Pontos(p[1].getX() - p[0].getX(), p[1].getY() - p[0].getY(), p[1].getZ() - p[0].getZ());
Pontos vertAC = new Pontos(p[2].getX() - p[0].getX(), p[2].getY() - p[0].getY(), p[2].getZ() - p[0].getZ());
if (lVetorNormal.Count <= i)
{
lVetorNormal.Add(new Vetor(vertAB, vertAC));
}
else
{
lVetorNormal[i] = new Vetor(vertAB, vertAC);
}
if (cbBackFaceCulling.Checked)
{
if (((Vetor)lVetorNormal[i]).getX() > 0)
{
for (int k = 0; k < j; k++)
{
Reta.Bresenham(p[k].getY() + 100, p[k].getZ() + 425, p[k + 1].getY() + 100, p[k + 1].getZ() + 425);//pintanto
}
}
}
else
{
for (int k = 0; k < j; k++)
{
Reta.Bresenham(p[k].getY() + 100, p[k].getZ() + 425, p[k + 1].getY() + 100, p[k + 1].getZ() + 425);//pintanto
}
}
}
Reta.AlocarBitmap(ret);
Reta.Desenhar();
if (btnColorir.Text.Equals("Colorir"))
{
//ScanLine.Scanline(Reta.getImgDta());
}
Reta.DesalocarBitmap(ret);
pictureBox.Image = ret;
imgBmp = ret;
}
