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struct Point3D
{
public float X, Y, Z;
public Point3D (float x, float y, float z)
{
X=x;
Y=y;
Z=z;
}
}
struct wireframe
{
public Point3D[] vert;
public int[,] edge;
}
public partial class Form1 : Form
{
const int a = 100;
Graphics g;
wireframe w;
int H, W;
double al;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
g = panel1.CreateGraphics();
H = panel1.Height;
W = panel1.Width;
al = (float)30 * Math.PI / 180;
w.vert= new Point3D [8];
w.vert[0]=new Point3D(0,0,0);
w.vert[1]=new Point3D(0,a,0);
w.vert[2]=new Point3D(0,a,a);
w.vert[3]=new Point3D(0,0,a);
w.vert[4]=new Point3D(a,0,0);
w.vert[5]=new Point3D(a,a,0);
w.vert[6]=new Point3D(a,a,a);
w.vert[7]=new Point3D(a,0,a);
w.edge= new int [12,2];
w.edge[0,0]=0;
w.edge[0,1]=1;
w.edge[1,0]=1;
w.edge[1,1]=2;
w.edge[2,0]=2;
w.edge[2,1]=3;
w.edge[3,0]=3;
w.edge[3,1]=0;
w.edge[4,0]=4;
w.edge[4,1]=5;
w.edge[5,0]=5;
w.edge[5,1]=6;
w.edge[6,0]=6;
w.edge[6,1]=7;
w.edge[7,0]=7;
w.edge[7,1]=4;
w.edge[8,0]=7;
w.edge[8,1]=3;
w.edge[9,0]=4;
w.edge[9,1]=0;
w.edge[10,0]=5;
w.edge[10,1]=1;
w.edge[11,0]=6;
w.edge[11,1]=2;
}
PointF ChieuSSOXY(Point3D p)
{
PointF Q = new PointF();
Q.X = p.X;
Q.Y = p.Y;
return Q;
}
void VeW(wireframe w, Graphics g, int W, int H, Color c)
{
Point3D p1, p2;
PointF Q1, Q2;
for (int i = 0; i < w.edge.GetLength(0); i++)
{
p1 = w.vert[w.edge[i,0]];
p2 = w.vert[w.edge[i,1]];
Q1 = ChieuSSOXY(p1);
Q2 = ChieuSSOXY(p2);
Myline(g, W,H, Q1, Q2, c);
}
}
void Myline(Graphics g, int W, int H, PointF p1, PointF p2, Color c)
{
p1.Y = H - p1.Y;
p1.X += W;
p2.Y = H - p2.Y;
p2.X += W;
g.DrawLine(new Pen(Color.Red), p1, p2);
}
private void panel1_Paint(object sender, PaintEventArgs e)
{
VeW(w, g,panel1.Width / 2, panel1.Height / 2, Color.Red);
}
Point3D XoayOx(Point3D p, float al)
{
Point3D q = new Point3D();
q.X = p.X;
q.Y =(float) (p.Y * Math.Cos(al) - p.Z*Math.Sin(al));
q.Z = (float)(p.Y * Math.Sin(al) + p.Z * Math.Cos(al));
return q;
}
void XoayWOx(ref wireframe w, float al)
{
for (int i = 0; i < w.vert.Length; i++)
{
w.vert[i] = XoayOx(w.vert[i], al);
}
}
Point3D XoayOy(Point3D p, float al)
{
Point3D q = new Point3D();
q.Y = p.Y;
q.X = (float)(p.Z * Math.Sin(al) + p.X * Math.Cos(al));
q.Z = (float)(p.Z * Math.Cos(al) - p.X * Math.Sin(al));
return q;
}
void XoayWOy(ref wireframe w, float al)
{
for (int i = 0; i < w.vert.Length; i++)
{
w.vert[i] = XoayOy(w.vert[i], al);
}
}
Point3D XoayOz(Point3D p, float al)
{
Point3D q = new Point3D();
q.Z = p.Z;
q.Y = (float)(p.X * Math.Sin(al) + p.Y * Math.Cos(al));
q.X = (float)(p.X * Math.Cos(al) - p.Y * Math.Sin(al));
return q;
}
void XoayWOz(ref wireframe w, float al)
{
for (int i = 0; i < w.vert.Length; i++)
{
w.vert[i] = XoayOz(w.vert[i], al);
}
}
Point3D BDOx(Point3D p, float hxy, float hxz)
{
Point3D q = new Point3D();
q.X = p.X + hxy * p.Y + hxz * p.Z;
q.Y = p.Y;
q.Z=p.Z;
return q;
}
void BDWOx(ref wireframe w,float hxy, float hxz)
{
for (int i = 0; i < w.vert.Length; i++)
{
w.vert[i] = BDOx(w.vert[i], hxy, hxz);
}
}
private void button1_Click(object sender, EventArgs e)
{
XoayWOx(ref w,(float) al);
g.Clear(panel1.BackColor);
VeW(w, g, panel1.Width / 2, panel1.Height / 2, Color.Red);
}
private void button2_Click(object sender, EventArgs e)
{
XoayWOy(ref w, (float)al);
g.Clear(panel1.BackColor);
VeW(w, g, panel1.Width / 2, panel1.Height / 2, Color.Red);
}
private void button3_Click(object sender, EventArgs e)
{
XoayWOz(ref w, (float)al);
g.Clear(panel1.BackColor);
VeW(w, g, panel1.Width / 2, panel1.Height / 2, Color.Red);
}
private void button4_Click(object sender, EventArgs e)
{
BDWOx(ref w, 2,3);
g.Clear(panel1.BackColor);
VeW(w, g, panel1.Width / 2, panel1.Height / 2, Color.Red);
}}
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