Computer Graphice C# Twin coding

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using Tao.OpenGl;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            simpleOpenGlControl1.InitializeContexts();
            Application.Idle += new EventHandler(Application_Idle);
            Gl.glMatrixMode(Gl.GL_PROJECTION);
            Glu.gluOrtho2D(2, simpleOpenGlControl1.Width, simpleOpenGlControl1.Height, 5);
            Gl.glMatrixMode(Gl.GL_MODELVIEW);

            polyA = new List<PointF>();
            polyB = new List<PointF>();
            Gl.glPointSize(10);
            Gl.glClearColor(0, 0, 0, 0);
        }
        float i = 0;
        void Application_Idle(object sender, EventArgs e)
        {
            simpleOpenGlControl1.Invalidate();
        }
        List<PointF> polyA;
        List<PointF> polyB;
        private void simpleOpenGlControl1_MouseClick(object sender, MouseEventArgs e)
        {
            if (radioButton1.Checked)
            {
                polyA.Add(new PointF(e.X, e.Y));
                updateAPoints();
            }
            else
            {
                polyB.Add(new PointF(e.X, e.Y));
                updateBPoints();
            }
        }

        public void updateAPoints()
        {
          //label1.Text = "Points in A: " + polyA.Count;
        }
        public void updateBPoints()
        {
            label2.Text = "Points in B: " + polyB.Count;
        }
        bool startTween = false;


      
        private void simpleOpenGlControl1_Paint(object sender, PaintEventArgs e)
        {
            Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);

            if (!startTween)
            {
                drawLines();
            }
            else
            {
                drawTween(polyA, polyB, i);
            }
           
        }









        public void drawTween(List<PointF> A, List<PointF> B,float t)
        {

           
            Gl.glBegin(Gl.GL_LINE_STRIP);
            Gl.glColor3f(1, 1, 1);
            PointF p2=new PointF();
            for (int i = 0; i < polyA.Count; i++)
            {
                p2.X = (1-t)*polyA[i].X+t*(polyB[i].X);
                p2.Y = (1 - t) * polyA[i].Y + t * (polyB[i].Y);
                Gl.glVertex3f(p2.X, p2.Y, 0);
            }
            Gl.glEnd();
       
        }
        public void drawLines()
        {
            Gl.glBegin(Gl.GL_LINE_STRIP);
            Gl.glColor3f(4,5,0);
            for (int i = 0; i < polyA.Count; i++)
            {
                Gl.glVertex3f(polyA[i].X, polyA[i].Y, 0);
            }
            Gl.glEnd();

           
            Gl.glBegin(Gl.GL_LINE_STRIP);
            Gl.glColor3f(6, 0, 1);
            for (int i = 0; i < polyB.Count; i++)
            {
                Gl.glVertex3f(polyB[i].X, polyB[i].Y, 0);
            }
            Gl.glEnd();
            Gl.glFlush();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            startTween = true;
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            updateTweenTime();
        }
        public void updateTweenTime()
        {
            i += 0.2f;
            if (i > 1)
            {
                startTween = false;
                i = 0;
                timer1.Stop();
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            polyA.Clear();
            updateAPoints();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            polyB.Clear();
            updateBPoints();
        }

      

    }
}

Posted in C#, Coding, Computer Graphics