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);
}
}
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Output of this program:
Download this program.
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