using System using System Collections Generic using System ComponentMo

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
static double angle = 0.1;
double[,] transformMatrix = new double[4, 4] {
{Math.Cos(angle),0,Math.Sin(angle),0},
{0, 1, 0,0},
{-Math.Sin(angle),0,Math.Cos(angle),0},
{0,0,0,1}
};
double[,] cube = new double[8,4] {
{0,0,0,1},
{100,0,0,1},
{100,0,100,1},
{0,0,100,1},
{0,100,0,1},
{100,100,0,1},
{100,100,100,1},
{0,100,100,1}
};
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
reDraw();
}
private Point[] getPoints(double[,] cube)
{
Point[] ps = new Point[8];
for (int i = 0; i < cube.GetLength(0); ++i )
{
ps[i] = new Point((int)cube[i, 0], (int)cube[i, 1]);
}
return ps;
}
private void button2_Click(object sender, EventArgs e)
{
timer1.Enabled = !timer1.Enabled;
}
private void multiplyTrMatrix()
{
double[,] res = new double[8, 4];
for (int row = 0; row < 8; row++)
{
for (int col = 0; col < 4; col++)
{
for (int inner = 0; inner < 4; inner++)
{
res[row, col] += cube[row, inner] * transformMatrix[inner, col];
}
}
}
cube = res;
}
private void reDraw()
{
Graphics g = pictureBox1.CreateGraphics();
g.Clear(SystemColors.Window);
g.TranslateTransform(this.ClientRectangle.Width / 4, this.ClientRectangle.Height / 4);
Point[] ps = getPoints(cube);
GraphicsPath path = new GraphicsPath();
path.AddPolygon(new Point[4] {
ps[4],
ps[0],
ps[1],
ps[5]
});
path.AddPolygon(new Point[4] {
ps[2],
ps[3],
ps[7],
ps[6]
});
path.AddPolygon(new Point[4] {
ps[2],
ps[3],
ps[0],
ps[1]
});
path.AddPolygon(new Point[4] {
ps[6],
ps[5],
ps[4],
ps[7]
});
path.AddPolygon(new Point[4] {
ps[2],
ps[6],
ps[5],
ps[1]
});
path.AddPolygon(new Point[4] {
ps[3],
ps[7],
ps[4],
ps[0]
});
PathGradientBrush pthGrBrush = new PathGradientBrush(path);
pthGrBrush.CenterColor = Color.FromArgb(255, 100, 200, 100);
Color[] colors = { Color.FromArgb(255, 100, 255, 100) };
pthGrBrush.SurroundColors = colors;
g.FillPolygon(pthGrBrush, new Point[4] {
ps[4],
ps[0],
ps[1],
ps[5]
});
g.FillPolygon(pthGrBrush, new Point[4] {
ps[2],
ps[3],
ps[7],
ps[6]
});
g.FillPolygon(pthGrBrush, new Point[4] {
ps[2],
ps[3],
ps[0],
ps[1]
});
g.FillPolygon(pthGrBrush, new Point[4] {
ps[6],
ps[5],
ps[4],
ps[7]
});
g.FillPolygon(pthGrBrush, new Point[4] {
ps[2],
ps[6],
ps[5],
ps[1]
});
g.FillPolygon(pthGrBrush, new Point[4] {
ps[3],
ps[7],
ps[4],
ps[0]
});
//--------------
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[4],
ps[0],
ps[1],
ps[5]
});
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[2],
ps[3],
ps[7],
ps[6]
});
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[2],
ps[3],
ps[0],
ps[1]
});
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[6],
ps[5],
ps[4],
ps[7]
});
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[2],
ps[6],
ps[5],
ps[1]
});
g.DrawPolygon(new Pen(new SolidBrush(Color.Black), 1), new Point[4] {
ps[3],
ps[7],
ps[4],
ps[0]
});
for (int i = 0; i < 8; ++i )
{
g.DrawString(i.ToString(), new Font("Verdana", 10), new SolidBrush(Color.Black), ps[i]);
}
}
private void timer1_Tick(object sender, EventArgs e)
{
multiplyTrMatrix();
reDraw();
}
}
}