106 lines
3.2 KiB
Java
106 lines
3.2 KiB
Java
|
/*
|
||
|
|
File: CapturingCanvas3D.java
|
||
|
|
|
||
|
|
University of Applied Science Berne,HTA-Biel/Bienne,
|
||
|
|
Computer Science Department.
|
||
|
|
|
||
|
|
Diploma thesis J3D Solar System Simulator
|
||
|
|
Originally written by Marcel Portner & Bernhard Hari (c) 2000
|
||
|
|
|
||
|
|
CVS - Information :
|
||
|
|
|
||
|
|
$Header: /var/cvsreps/projects/c450/2000/sss3d/source_diploma/sss3d/utils/CapturingCanvas3D.java,v 1.2 2000/12/06 11:09:01 portm Exp $
|
||
|
|
$Author: portm $
|
||
|
|
$Date: 2000/12/06 11:09:01 $
|
||
|
|
$State: Exp $
|
||
|
|
|
||
|
|
*/
|
||
|
|
package sss3d.utils;
|
||
|
|
|
||
|
|
import java.awt.*;
|
||
|
|
import java.awt.image.BufferedImage;
|
||
|
|
import java.io.*;
|
||
|
|
import javax.media.j3d.*;
|
||
|
|
import javax.vecmath.Point3f;
|
||
|
|
import com.sun.image.codec.jpeg.*;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class CapturingCanvas3D, using the instructions from the Java3D
|
||
|
|
* FAQ pages on how to capture a still image in jpeg format.
|
||
|
|
*
|
||
|
|
* A capture button would call a method that looks like
|
||
|
|
*
|
||
|
|
* <pre>
|
||
|
|
* public static void captureImage(CapturingCanvas3D MyCanvas3D) {
|
||
|
|
* MyCanvas3D.writeJPEG_ = true;
|
||
|
|
* MyCanvas3D.repaint();
|
||
|
|
* }
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* Peter Z. Kunszt
|
||
|
|
* Johns Hopkins University
|
||
|
|
* Dept of Physics and Astronomy
|
||
|
|
* Baltimore MD
|
||
|
|
*
|
||
|
|
* @author Marcel Portner & Bernhard Hari
|
||
|
|
* @version $Revision: 1.2 $
|
||
|
|
*/
|
||
|
|
public class CapturingCanvas3D extends Canvas3D {
|
||
|
|
|
||
|
|
public boolean writeJPEG_;
|
||
|
|
private int postSwapCount_;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Constructor that generate a Canvas3D.
|
||
|
|
*
|
||
|
|
* @param gc the GraphicsConfiguration
|
||
|
|
*/
|
||
|
|
public CapturingCanvas3D(GraphicsConfiguration gc) {
|
||
|
|
super(gc);
|
||
|
|
postSwapCount_ = 0;
|
||
|
|
writeJPEG_ = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Override Canvas3D's postSwap method to save a JPEG of the canvas.
|
||
|
|
*/
|
||
|
|
public void postSwap() {
|
||
|
|
if(writeJPEG_) {
|
||
|
|
System.out.println("Writing JPEG");
|
||
|
|
int dimX = this.getScreen3D().getSize().width;
|
||
|
|
int dimY = this.getScreen3D().getSize().height;
|
||
|
|
|
||
|
|
// The raster components need all be set!
|
||
|
|
Raster ras = new Raster(new Point3f(-1.0f, -1.0f, -1.0f),
|
||
|
|
Raster.RASTER_COLOR,
|
||
|
|
0, 0,
|
||
|
|
dimX, dimY,
|
||
|
|
new ImageComponent2D(ImageComponent.FORMAT_RGB,
|
||
|
|
new BufferedImage(dimX, dimY,
|
||
|
|
BufferedImage.TYPE_INT_RGB)),
|
||
|
|
null);
|
||
|
|
|
||
|
|
GraphicsContext3D ctx = getGraphicsContext3D();
|
||
|
|
ctx.readRaster(ras);
|
||
|
|
|
||
|
|
// Now strip out the image info
|
||
|
|
BufferedImage img = ras.getImage().getImage();
|
||
|
|
|
||
|
|
// write that to disk....
|
||
|
|
try {
|
||
|
|
FileOutputStream out = new FileOutputStream("Capture" + postSwapCount_ + ".jpg");
|
||
|
|
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
|
||
|
|
JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(img);
|
||
|
|
param.setQuality(0.9f,false); // 90% qualith JPEG
|
||
|
|
encoder.setJPEGEncodeParam(param);
|
||
|
|
encoder.encode(img);
|
||
|
|
writeJPEG_ = false;
|
||
|
|
out.close();
|
||
|
|
} catch ( IOException e ) {
|
||
|
|
System.out.println("I/O exception!");
|
||
|
|
}
|
||
|
|
postSwapCount_++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|