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Add RenderingHints to a Graphics
Posted on: March 14, 2008 at 12:00 AM

This Java tutorial teaches you about adding the rendering hints to a graphics on the frame. The rendering hints uses the Graphics2D and creates the following image.

Add RenderingHints to a Graphics

This Java tutorial teaches you about adding the rendering hints to a graphics on the frame. The rendering hints uses the Graphics2D and creates the following image.

Description of program:

This program uses the Graphics2D class for rendering hints and draw or construct the given following image.

Description of code:

Graphics2D():
This is the constructor of Graphics2D class that extends the Graphics class to provide

KEY_ANTIALIASING:
This is an antialiasing hint key.

VALUE_ANTIALIAS_ON:
This is a antialiasing hints values and rendered with it.

setRenderingHint():
This method sets the values in Graphics2D object for rendering algorithm.

GradiantPaint(float x1, float y1, Color col1, float x2, float y2, Color col2):
This is the constructor of GradiantPaint class that provides a way for filling the shapes with gradient color pattern. It creates the simple acyclic GradientPaint object. It takes the following arguments:

x1: This is the x coordinate of first specified point.
y1: This is the y coordinate of first specified point.
col1: This is the color of first specified point.
x2: This is the x coordinate of second specified point.
y2: This is the y coordinate of second specified point.
col2: This is the color of second specified point.

Ellipse2D():
This is the constructor of an abstract class Ellipse2D that defines bounding rectangle and constructs an ellipse.

transform():
This is the constructor of Transform Class. This is an abstract class that transform a source tree into a tree result.

Here is the code of program:


import java.awt.*;

import java.awt.event.*;

import java.awt.geom.*;



public class RanderingHintsGraphics extends Frame{

  public static void main(String[] args) {

  new RanderingHintsGraphics();

  }

  public RanderingHintsGraphics(){

  setTitle("Add RenderingHints to a Graphics");

  setSize(300,200);

  setVisible(true);

  addWindowListener(new WindowAdapter(){

  public void windowClosing(WindowEvent we){

  System.exit(0);

  }

  });

  }

  public void paint(Graphics g){

  Graphics2D d = (Graphics2D)g;

  d.setRenderingHint(

RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

  GradientPaint gpaint = new GradientPaint(

  50, 80, Color.gray,50, 110, Color.lightGray);

  Ellipse2D el = new Ellipse2D.Double(5, 30, 280, 160);

  d.setPaint(gpaint);

  d.fill(el);

  double rotation = Math.PI/8;

  d.transform(AffineTransform.getRotateInstance(rotation));

  Font font = new Font("Serif", Font.TRUETYPE_FONT, 50);

  d.setFont(font);

  d.setPaint(Color.white);

  String str = "RoseIndia";

  d.drawString(str,80,60);

  }

}

Download this example.

Output of program:

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