Hi all!
I am in desperate need of help. I have written an application that
creates a 3D bar chart. Now I want to save that to a .tif file. I can
create a rectangle in awt and save it to a .tif file. However, since
Java3D doesn't use the paint(Graphics g) method (as far as I can tell),
I can't figure it out. I am new at this so any help would be REALLY
appreciated. I posted a few questions in the forum and have gotten NO
responses. I know the API is new, so there is not many books
available. My boss just bought "The Java 3D API Specification". Here
is my code. It's very messy.
public class Test
{
public static Frame displayFrame;
protected String filename;
public static Image saveImage;
public static int Val1 = 0;
public static int Val2 = 0;
public static int Val3 = 0;
public static int highestVal = 0;
public static CapturingCanvas3D canvas3D;
public static CapturingCanvas3D capIm;
public static Image image;
public static boolean bTakeShot;
public static BufferedImage bi;
public Test(int width, int height)
{
System.out.println("You are in new Test");
BranchGroup scene = CreateLighter();
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
captureImage(canvas3D);
displayFrame = new Frame("Chart Application");
//displayFrame.add(BorderLayout.CENTER, canvas3D);
displayFrame.pack();
}
public static void main(String[] args)
{
new Test(500, 500);
System.out.println("0");
}
public static BranchGroup CreateLighter()
{
System.out.println("1");
BranchGroup objRoot = new BranchGroup();
System.out.println("2");
System.out.println("3");
TransformGroup objTrans = new TransformGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
Appearance abar1 = new Appearance();
Material mbar1 = new Material();
AmbientLight light1 = new AmbientLight();
light1.setInfluencingBounds(bounds);
mbar1.setAmbientColor(1.0f, 0.0f, 0.0f);
mbar1.setDiffuseColor(0.7f, 0.7f, 0.7f);
mbar1.setLightingEnable(true);
abar1.setMaterial(mbar1);
Appearance abar2 = new Appearance();
Material mbar2 = new Material();
AmbientLight light2 = new AmbientLight();
light2.setInfluencingBounds(bounds);
mbar2.setAmbientColor(0.0f, 0.0f, 1.0f);
mbar2.setDiffuseColor(0.7f, 0.7f, 0.7f);
mbar2.setLightingEnable(true);
abar2.setMaterial(mbar2);
Appearance abar3 = new Appearance();
Material mbar3 = new Material();
AmbientLight light3 = new AmbientLight();
light3.setInfluencingBounds(bounds);
mbar3.setAmbientColor(0.0f, 1.0f, 0.0f);
mbar3.setDiffuseColor(0.7f, 0.7f, 0.7f);
mbar3.setLightingEnable(true);
abar3.setMaterial(mbar3);
Transform3D bar1mat = new Transform3D();
Transform3D bar1mat2 = new Transform3D();
Box boxObj1 = new Box(0.2f, 0.7f, 0.2f, abar1);
//Shape3D shape = new Shape3D(raster);
boxObj1.setAppearance(abar1);
bar1mat.set(new Vector3d(-0.8, 0.4, -0.9));
bar1mat2.set(new Vector3d(-0.8, 0.4, -0.9));
TransformGroup maintrans1 = new TransformGroup();
Transform3D rotate1 = new Transform3D();
Transform3D tempRotate1 = new Transform3D();
rotate1.rotX(Math.PI/4.0d);
tempRotate1.rotY(Math.PI/3.0d);
rotate1.mul(tempRotate1);
TransformGroup objRotate1 = new TransformGroup(rotate1);
objRotate1.addChild(boxObj1);
maintrans1.addChild(light1);
maintrans1.addChild(objRotate1);
maintrans1.setTransform(bar1mat);
maintrans1.setTransform(bar1mat2);
objTrans.addChild(maintrans1);
Transform3D bar2mat = new Transform3D();
Transform3D bar2mat2 = new Transform3D();
Box boxObj2 = new Box(0.2f, 0.3f, 0.2f, abar2);
boxObj2.setAppearance(abar2);
bar2mat.set(new Vector3d(-0.4, 0.0, -0.71));
bar2mat2.set(new Vector3d(-0.4, 0.0, -0.71));
TransformGroup maintrans2 = new TransformGroup();
Transform3D rotate2 = new Transform3D();
Transform3D tempRotate2 = new Transform3D();
rotate2.rotX(Math.PI/4.0d);
tempRotate2.rotY(Math.PI/3.0d);
rotate2.mul(tempRotate2);
TransformGroup objRotate2 = new TransformGroup(rotate2);
objRotate2.addChild(boxObj2);
maintrans2.addChild(light2);
maintrans2.addChild(objRotate2);
maintrans2.setTransform(bar2mat);
maintrans2.setTransform(bar2mat2);
objTrans.addChild(maintrans2);
Transform3D bar3mat = new Transform3D();
Transform3D bar3mat2 = new Transform3D();
Box boxObj3 = new Box(0.2f, 0.4f, 0.2f, abar3);
boxObj3.setAppearance(abar3);
bar3mat.set(new Vector3d(-0.05, -0.05, -0.3));
bar3mat2.set(new Vector3d(-0.05, -0.05, -0.3));
TransformGroup maintrans3 = new TransformGroup();
Transform3D rotate3 = new Transform3D();
Transform3D tempRotate3 = new Transform3D();
rotate3.rotX(Math.PI/4.0d);
tempRotate3.rotY(Math.PI/3.0d);
rotate3.mul(tempRotate3);
TransformGroup objRotate3 = new TransformGroup(rotate3);
objRotate3.addChild(boxObj3);
maintrans3.addChild(objRotate3);
maintrans3.addChild(light3);
maintrans3.setTransform(bar3mat);
maintrans3.setTransform(bar3mat2);
objTrans.addChild(maintrans3);
Color3f lightColor = new Color3f(1.0f, 1.0f, 1.0f);
Point3f lightDirection = new Point3f(2.0f, 0.0f, 0.5f);
PointLight light = new PointLight();
light.setPosition(lightDirection);
light.setColor(lightColor);
light.setInfluencingBounds(bounds);
Background backg = new Background(1.0f, 1.0f, 1.0f);
backg.setApplicationBounds(bounds);
objRoot.addChild(backg);
objRoot.addChild(light);
objRoot.addChild(objTrans);
System.out.println("4");
System.out.println("5");
objRoot.compile();
return objRoot;
}
public static void captureImage(CapturingCanvas3D MyCanvas3D)
{
System.out.println("you are here 1 ");
MyCanvas3D.writeTIF_ = true;
System.out.println("you are here 2");
MyCanvas3D.repaint();
System.out.println("You are here 3");
}
}
class CapturingCanvas3D extends Canvas3D
{
public static boolean writeTIF_;
private int postSwapCount_;
public GraphicsContext3D ctx;
public Raster snapshot;
public CapturingCanvas3D(GraphicsConfiguration gc)
{
super(gc);
postSwapCount_ = 0;
System.out.println("You are in CapturingCanvas3D");
}
public void postSwap()
{
System.out.println("You are in postSwap");
if(writeTIF_) {
System.out.println("Writing TIF");
ctx = getGraphicsContext3D();
snapshot = new Raster(
new Point3f(-1.0f,-1.0f,-1.0f),
Raster.RASTER_COLOR,
0,0,
512,512,
new ImageComponent2D(
ImageComponent.FORMAT_RGB,
new BufferedImage(512,512,
BufferedImage.TYPE_INT_RGB)),
null);
ctx.readRaster(snapshot);
BufferedImage saveImage = snapshot.getImage().getImage();
System.out.println("The value of saveImage is "+saveImage);
String theFile = "C:\\jdk1.2.2\\picture.tif";
try
{ System.out.println("6");
RenderedOp ri = JAI.create("awtimage", saveImage);
System.out.println("7");
FileOutputStream stream = new FileOutputStream(theFile);
//JAI.create("encode", ri, stream, null);
JAI.create("filestore", ri, theFile, null);
System.out.println("You are past save");
}
catch (Exception e)
{
System.out.println("Picture save failed: " +
e.getMessage());
}
postSwapCount_++;
}
else
{
System.out.println("Failure writing file");
}
}
/*public void postRender()
{
ctx.readRaster(snapshot);
}*/
}
One of my main questions is: When is postSwap called?
I get my NullPointerException at: MyCanvas3D.repaint();
Thanks so much in advance!
Stephanie
[EMAIL PROTECTED]
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