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Basic 2d graphics in Java

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  Basic 2d graphics in Java tomcees_pc@yahoo.com - 2013-12-12 08:45 -0800
    Re: Basic 2d graphics in Java markspace <markspace@nospam.nospam> - 2013-12-12 09:39 -0800
    Re: Basic 2d graphics in Java lipska the kat <"lipskathekat at yahoo dot co dot uk"> - 2013-12-12 19:07 +0000
      Re: Basic 2d graphics in Java Joerg Meier <joergmmeier@arcor.de> - 2013-12-12 20:43 +0100
        Re: Basic 2d graphics in Java lipska the kat <"lipskathekat at yahoo dot co dot uk"> - 2013-12-12 19:47 +0000
    Re: Basic 2d graphics in Java lipska the kat <"lipskathekat at yahoo dot co dot uk"> - 2013-12-12 20:14 +0000
      Re: Basic 2d graphics in Java tomcees_pc@yahoo.com - 2013-12-12 12:37 -0800
    Re: Basic 2d graphics in Java Jeff Higgins <jeff@invalid.invalid> - 2013-12-12 17:42 -0500

#26857 — Basic 2d graphics in Java

Hello:

I'm working through re-learning java and would like to solicit some help.

Can anyone share some simple java code to:

1.  Set up a small (say 320w x 240h) 2d window.
2.  Set(color) and Read (color) of pixels within this window.

TIA for your help,
TomC

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#26858

On 12/12/2013 8:45 AM, tomcees_pc@yahoo.com wrote:
> Hello:
>
> I'm working through re-learning java and would like to solicit some help.
>
> Can anyone share some simple java code to:
>
> 1.  Set up a small (say 320w x 240h) 2d window.
> 2.  Set(color) and Read (color) of pixels within this window.

<http://docs.oracle.com/javase/tutorial/2d/>

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#26862

On 12/12/13 18:42, Stefan Ram wrote:
> tomcees_pc@yahoo.com writes:
>> Can anyone share some simple java code to:
>> 1.  Set up a small (say 320w x 240h) 2d window.
>> 2.  Set(color) and Read (color) of pixels within this window.
>
> class Main extends javax.swing.JComponent implements java.lang.Runnable
> { final int X = 320; final int Y = 200;
>    private static final long serialVersionUID = 0L;
>    final java.awt.image.BufferedImage window
>    = new java.awt.image.BufferedImage
>    ( X, Y, java.awt.image.BufferedImage.TYPE_INT_RGB );
>    public int readColor( final int x, final int y )
>    { return Main.this.window.getRGB( x, y ); }
>    public void setColor( final int x, final int y, final int color )
>    { Main.this.window.setRGB( x, y, color ); }
>    public static void main( final java.lang.String args[] )
>    { java.awt.EventQueue.invokeLater( new Main() ); }
>    @java.lang.Override public final void run()
>    { final javax.swing.JFrame frame = new javax.swing.JFrame( "Main" );
>      Main.this.setPreferredSize( new java.awt.Dimension( 320, 200 ));
>      Main.this.setColor( X/2, Y/2, 0xFFFFFF );
>      java.lang.System.out.println( Main.this.readColor( X/2, Y/2 ));
>      frame.setDefaultCloseOperation( javax.swing.JFrame.EXIT_ON_CLOSE );
>      frame.add( Main.this ); frame.pack(); frame.setVisible( true ); }
>    @java.lang.Override
>    public void paintComponent( final java.awt.Graphics graphics )
>    { graphics.drawImage( Main.this.window, 0, 0, null ); }}

Jeez

If anyone had written code formatted like that when I was working I'd 
have sacked the bugger.


-- 
Lipska the Kat©: Troll hunter, sandbox destroyer,
treacherous feline and farscape dreamer of Aeryn Sun
GNU/Linux user #560883 - http://www.linuxcounter.net

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#26864

On Thu, 12 Dec 2013 19:07:17 +0000, lipska the kat wrote:

> If anyone had written code formatted like that when I was working I'd 
> have sacked the bugger.

I was thinking the same reading about Stefan teaching students his
ridiculously eccentric code style. I wonder if they (or he) realizes that
if they are ever asked to provide a code sample before or during an
interview, they'll be unceremoniously asked to leave.

Liebe Gruesse,
		Joerg

-- 
Ich lese meine Emails nicht, replies to Email bleiben also leider
ungelesen.

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#26865

On 12/12/13 19:43, Joerg Meier wrote:
> On Thu, 12 Dec 2013 19:07:17 +0000, lipska the kat wrote:
>
>> If anyone had written code formatted like that when I was working I'd
>> have sacked the bugger.
>
> I was thinking the same reading about Stefan teaching students his
> ridiculously eccentric code style. I wonder if they (or he) realizes that
> if they are ever asked to provide a code sample before or during an
> interview, they'll be unceremoniously asked to leave.

I can't believe that he actually teaches people to write code like that!

Does he? surely not.

It's just his 'c.l.j.p style' I'm sure.


-- 
Lipska the Kat©: Troll hunter, sandbox destroyer,
treacherous feline and farscape dreamer of Aeryn Sun
GNU/Linux user #560883 - http://www.linuxcounter.net

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#26866

On 12/12/13 16:45, tomcees_pc@yahoo.com wrote:
> Hello:
>
> I'm working through re-learning java and would like to solicit some help.
>
> Can anyone share some simple java code to:
>
> 1.  Set up a small (say 320w x 240h) 2d window.
> 2.  Set(color) and Read (color) of pixels within this window.
>
> TIA for your help,
> TomC

Try this

With suitable acknowledgments to Stefan Ram of this parish.

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import javax.swing.JComponent;
import javax.swing.JFrame;

class Main extends JComponent implements Runnable {
    int X = 320;
    int Y = 200;

    private static final long serialVersionUID = 0L;
    BufferedImage window = new BufferedImage( X, Y, 
BufferedImage.TYPE_INT_RGB );

    public int readColor(int x, int y ){
	   return window.getRGB( x, y );
    }

    public void setColor( int x, int y, int color ){
	   window.setRGB( x, y, color );
    }

    public static void main(String args[] ){
	   EventQueue.invokeLater(new Main() );
    }

    @Override
    public void run(){
	   JFrame frame = new JFrame( "Main" );
	   setPreferredSize( new Dimension( X, Y ));
	   setColor( X/2, Y/2, 0xFFFFFF );
	   System.out.println(readColor( X/2, Y/2 ));
	   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
	   frame.add(this);
	   frame.pack();
	   frame.setVisible( true );
    }

    @Override
    public void paintComponent(Graphics graphics ){
	  graphics.drawImage(window, 0, 0, null );
    }
}



-- 
Lipska the Kat©: Troll hunter, sandbox destroyer,
treacherous feline and farscape dreamer of Aeryn Sun
GNU/Linux user #560883 - http://www.linuxcounter.net


-- 
Lipska the Kat©: Troll hunter, sandbox destroyer,
treacherous feline and farscape dreamer of Aeryn Sun
GNU/Linux user #560883 - http://www.linuxcounter.net

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#26867

On Thursday, December 12, 2013 3:14:47 PM UTC-5, lipska the kat wrote:
> On 12/12/13 16:45, tomcees_ .com wrote:
> 
> > Hello:
> 
> >
> 
> > I'm working through re-learning java and would like to solicit some help.
> 
> >
> 
> > Can anyone share some simple java code to:
> 
> >
> 
> > 1.  Set up a small (say 320w x 240h) 2d window.
> 
> > 2.  Set(color) and Read (color) of pixels within this window.
> 
> >
> 
> > TIA for your help,
> 
> > TomC
> 
> 
> 
> Try this
> 
> 
> 
> With suitable acknowledgments to Stefan Ram of this parish.
> 
> 
> 
> import java.awt.Dimension;
> 
> import java.awt.EventQueue;
> 
> import java.awt.Graphics;
> 
> import java.awt.image.BufferedImage;
> 
> import javax.swing.JComponent;
> 
> import javax.swing.JFrame;
> 
> 
> 
> class Main extends JComponent implements Runnable {
> 
>     int X = 320;
> 
>     int Y = 200;
> 
> 
> 
>     private static final long serialVersionUID = 0L;
> 
>     BufferedImage window = new BufferedImage( X, Y, 
> 
> BufferedImage.TYPE_INT_RGB );
> 
> 
> 
>     public int readColor(int x, int y ){
> 
> 	   return window.getRGB( x, y );
> 
>     }
> 
> 
> 
>     public void setColor( int x, int y, int color ){
> 
> 	   window.setRGB( x, y, color );
> 
>     }
> 
> 
> 
>     public static void main(String args[] ){
> 
> 	   EventQueue.invokeLater(new Main() );
> 
>     }
> 
> 
> 
>     @Override
> 
>     public void run(){
> 
> 	   JFrame frame = new JFrame( "Main" );
> 
> 	   setPreferredSize( new Dimension( X, Y ));
> 
> 	   setColor( X/2, Y/2, 0xFFFFFF );
> 
> 	   System.out.println(readColor( X/2, Y/2 ));
> 
> 	   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
> 
> 	   frame.add(this);
> 
> 	   frame.pack();
> 
> 	   frame.setVisible( true );
> 
>     }
> 
> 
> 
>     @Override
> 
>     public void paintComponent(Graphics graphics ){
> 
> 	  graphics.drawImage(window, 0, 0, null );
> 
>     }
> 
> }
> 
> 
> 
> 
> 
> 
> 
> -- 
> 
> Lipska the Kat�: Troll hunter, sandbox destroyer,
> 
> treacherous feline and farscape dreamer of Aeryn Sun
> 
> GNU/Linux user #560883 - http://www.linuxcounter.net
> 
> 
> 
> 
> 
> -- 
> 
> Lipska the Kat�: Troll hunter, sandbox destroyer,
> 
> treacherous feline and farscape dreamer of Aeryn Sun
> 
> GNU/Linux user #560883 - http://www.linuxcounter.net

Works nicely!  Thanks to both of you for the courteous, helpful response!

Regards,
TomC

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#26868

On 12/12/2013 11:45 AM, tomcees_pc@yahoo.com wrote:
> Hello:
>
> I'm working through re-learning java and would like to solicit some help.
>
> Can anyone share some simple java code to:
>
> 1.  Set up a small (say 320w x 240h) 2d window.
> 2.  Set(color) and Read (color) of pixels within this window.
>
> TIA for your help,
> TomC
>
Just cause so many are heaping on Swing lately.

package pixel.test;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.ImageView;
import javafx.scene.image.PixelReader;
import javafx.scene.image.PixelWriter;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class PixelTest extends Application {
	
   WritableImage image = new WritableImage(320,240);
   PixelReader pixelReader = image.getPixelReader();
   PixelWriter pixelWriter = image.getPixelWriter();

   //setPixel and readPixel left as an exercise

   @Override
   public void start(Stage primaryStage) {
     ImageView imageView = new ImageView();
     imageView.setImage(image);
     StackPane root = new StackPane();
     root.getChildren().add(imageView);
     Scene scene = new Scene(root, 320, 240);
     primaryStage.setTitle("Pixel Test");
     primaryStage.setScene(scene);
     primaryStage.show();
   }

   public static void main(String[] args) {
     launch(args);
   }
}

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