GRAFIKA TAS MELALUI JAVA

    membuat suatu gambar sederhana dari program java

disini akan dicoba untuk membuat grafika atau gambar dari sebuah tas

namun tas yang di buat ini sangatlah simpel

berikut programnya:

ü  Source code main program 

package grafikakomputer;

import java.io.DataInputStream;

import javax.swing.*;

public class GrafikaKomputer extends JFrame{

      DigitalDifferensialAnalizer garis = new DigitalDifferensialAnalizer();

      CircleMidpoint lingkaran = new CircleMidpoint();

      ElipsMidPoint elips = new ElipsMidPoint();

      public GrafikaKomputer(){

                  setTitle("...");

        add("Center", new MainCanvas());

        setSize(800,700);

    // KOORDINAT TITIK

      garis.drawLineDda(300,200,600,200); //lurus atas dalam

      garis.drawLineDda(300,200,300,400); //garis bawah dalam kiri

      garis.drawLineDda(300,400,600,400); //lurus bawah dalam

      garis.drawLineDda(600,200,600,400); //lurus bawah dalam

      garis.drawLineDda(320,190,580,190); //garis atas

      garis.drawLineDda(300,200,320,190); //miring kiri

      garis.drawLineDda(600,200,580,190); //miring kanan

      garis.drawLineDda(410,170,490,170); //atas pegangan 1

      garis.drawLineDda(410,170,410,195); //garis pgngan 1

      garis.drawLineDda(490,170,490,195); //garis pegangan 2

      garis.drawLineDda(400,160,500,160); //atas pegangan 2

      garis.drawLineDda(400,160,400,195); //garis pgngn 3

      garis.drawLineDda(500,160,500,195); //garis pgangan 4

      garis.drawLineDda(300,200,450,70); //miring kiri 1

      garis.drawLineDda(600,200,450,70); //miring kanan 1

      garis.drawLineDda(320,190,450,70); //miring kiri 2

      garis.drawLineDda(580,190,450,70); //miring kanan 3

      garis.drawLineDda(550,250,550,370); //garis saku

      elips.drawElips(565,255,15,5); //slerekan

        setResizable(false);

        setVisible(true);

      }

      public static void main (String[] args) {

                  new GrafikaKomputer();

      }

}

ü  Source code dda

package grafikakomputer;

public class DigitalDifferensialAnalizer extends MainCanvas

{   

      public void drawLineDda(int x1, int y1, int x2, int y2){

                  float dx, dy, a, b,x,y, xin, yin,langkah;

                  dx = x2-x1;

                  dy= y2-y1;

                  a = Math.round(Math.abs(dx));

                  b= Math.round(Math.abs(dy));

                  x=x1;

                  y = y1;

                  if (a>b)

                              langkah= a;

                              else

                                          langkah=b;

                  xin = dx/langkah;

                  yin = dy/langkah;

                  px.setPixel(Math.round(x),Math.round(y), warna);

                  for(int i = 0;i<langkah;i++)

                  {

                              x = x+ xin;

                              y = y+yin;

                              px.setPixel(Math.round(x),Math.round(y), warna);

                  }

      } }

ü  Source code elips mid point

package grafikakomputer;

public class ElipsMidPoint extends MainCanvas{

    ElipsMidPoint(){

    }

    private void elipsPlotPoints(int xCenter,int yCenter,int x,int y){

      px.setPixel(xCenter+x,yCenter+y,warna);

      px.setPixel(xCenter-x,yCenter+y,warna);

      px.setPixel(xCenter+x,yCenter-y,warna);

      px.setPixel(xCenter-x,yCenter-y,warna);

    }

        public void drawElips(int xCenter,int yCenter,int Rx, int Ry){

      int Rx2, Ry2, x,y,twoRx2, twoRy2, py, px;

      float p;

      Rx2 = Rx*Rx;

      Ry2 = Ry*Ry;

      x=0;

      y=Ry;

      twoRx2=2*Rx2;

      twoRy2=2*Ry2;

      px=0;

      py=twoRx2*y;

      elipsPlotPoints(xCenter,yCenter,x,y);

      p=Math.round(Ry2-(Rx2*Ry)+(0.25*Rx2));

      while(px<py){

                  x=x+1;

                  px=px+twoRy2;

                  if(p<0){

                              p=p+(Ry2+px);

                  }

                  else{

                              y=y-1;

                              py=py-twoRx2;

                              p=p+(Ry2+px-py);

                  }

                  elipsPlotPoints(xCenter, yCenter,x,y);

      }

                  while (y>0){

                  y=y-1;

                  py=py-twoRx2;

                  if(p>0){

                              p=p+(Rx2-py);

                  }

                  else{

                              x=x+1;

                              px=px+twoRy2;

                              p=p+Ry2+px-py;

                  }

                  elipsPlotPoints(xCenter, yCenter,x,y);

      }

        }

}