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How to Create CurveDraw In Java
Posted on: March 13, 2008 at 12:00 AM

In this section, you will learn how to create CurveDraw in java.awt package. This class,supported by the java.awt.geom package, enables you to create a quadratic or cubic segment. Here, you will see in the following example that provide you complete code

How to Create CurveDraw In Java

Introduction

In this section, you will learn how to create CurveDraw in java.awt package. This class,supported by the java.awt.geom package, enables you to create a quadratic or cubic segment. Here, you will see in the following example that provide you complete code of the program.

Program Description:

Define class named CurveDraw, for creating this component.

QuadCurve2D.Double(): This QuadCurve2D class is defined as a quadratic parametric curve segment in (x, y) coordinate and the quadratic parametric curve segment is specified with Double Coordinate. This class supplies a coordinate space. Such that this class represents the coordinate parameter and is defined for using the CurveDraw component. A QuadCurve draws the curve line with Double Coordinate.

Here is the code of this program:


import java.awt.*;

import java.awt.event.*;

import java.awt.geom.*;



public class CurveDraw extends Frame {

  Stroke drawingStroke = new BasicStroke(2);

  QuadCurve2D curve = new QuadCurve2D.Double(30,50,20,200,100,100);



  public void paint(Graphics g) {

  Graphics2D ga = (Graphics2D)g;

  ga.setStroke(drawingStroke);

  ga.setPaint(Color.green);

  ga.draw(curve);



  }



  public static void main(String args[]) {

  Frame frame = new CurveDraw();

  frame.addWindowListener(new WindowAdapter(){

  public void windowClosing(WindowEvent we){

  System.exit(0);

  }

  });

  frame.setSize(200, 200);

  frame.setVisible(true);

  }

}

Output of this program:

Download this program.

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