Hi all,
I search to change dynamically Text3D when picking on screen.
At first I wanted to use the function TextLettre.setString("X")
but like nothing happened, I talked with java3d-beta and they said me
it was a bug.
(I send my code to let you understand what I intend to do).
Instead of waiting for the new version of java3d, perhaps there is
another way to change live Text3D.
have you a idea ?
Any help will be very useful.
Thanks a lot,
Kristell
/*
* FourByFour.java 13/01/99
*/
import java.applet.Applet;
import java.awt.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.picking.*;
import java.util.BitSet;
import com.sun.j3d.utils.applet.MainFrame;
public class FourByFour extends Applet
{
int width, height; // Size of the graphics window in
pixels
Canvas3D canvas3D; // 3D rendering canvas
Panel c_container; // Container to hold the canvas
private Group group;
String letter; // holds the key pressed
private String fontName = "TestFont";
private String textString = null;
private Appearance whiteApp;
private Material whiteMat;
Lettres lettres;
public void init()
{
width = 350;
height = 350;
setBackground(new Color(200, 200, 200));
lettres = new Lettres();
canvas3D = new Canvas3D(null);
canvas3D.setSize(width, height);
canvas3D.setLocation(5, 5);
BranchGroup scene3D = createScene3D();
SimpleUniverse universe = new SimpleUniverse(canvas3D);
universe.addBranchGraph(scene3D);
TransformGroup tg =
universe.getViewingPlatform().getViewPlatformTransform();
Transform3D transform = new Transform3D();
transform.set(65.f, new Vector3f(0.0f, 0.0f, 400.0f));
tg.setTransform(transform);
c_container = new Panel();
c_container.setSize(360, 360);
c_container.setLocation(0, 0);
c_container.setVisible(true);
c_container.setLayout(null);
add(c_container);
c_container.add(canvas3D);
setLayout(null);
}
public BranchGroup createScene3D()
{
Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
Color3f specular = new Color3f(1.0f, 1.0f, 1.0f);
whiteMat= new Material(white, white, white, specular, 100.f);
whiteMat.setLightingEnable(true);
whiteApp = new Appearance();
whiteApp.setMaterial(whiteMat);
BranchGroup branchGroup = new BranchGroup();
TransformGroup objScale = new TransformGroup();
Transform3D t3d = new Transform3D();
t3d.setScale(2.5);
objScale.setTransform(t3d);
branchGroup.addChild(objScale);
BoundingSphere bounds = new BoundingSphere(new
Point3d(0.0,0.0,0.0), 1000.0);
BoundingLeaf boundingLeaf = new BoundingLeaf(bounds);
objScale.addChild(boundingLeaf);
Background bg = new Background(bgColor);
bg.setApplicationBounds(bounds);
objScale.addChild(bg);
AmbientLight ambLight = new AmbientLight(white);
ambLight.setInfluencingBounds(bounds);
objScale.addChild(ambLight);
Vector3f dir = new Vector3f(-1.0f, -1.0f, -1.0f);
DirectionalLight dirLight = new DirectionalLight(white, dir);
dirLight.setInfluencingBounds(bounds);
objScale.addChild(dirLight);
TransformGroup objTrans = new TransformGroup();
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objScale.addChild(objTrans);
objTrans.addChild(lettres.getChild());
lettres.setTransformGroup(objTrans);
MouseRotate behavior3 = new MouseRotate();
behavior3.setTransformGroup(objTrans);
objTrans.addChild(behavior3);
behavior3.setSchedulingBounds(bounds);
SourisBehavior behavior = new SourisBehavior(canvas3D, branchGroup,
bounds, lettres);
branchGroup.compile();
return branchGroup;
}
public class Lettres extends Object
{
private Point3f point[];
private Switch posSwitch;
private BitSet posMask;
private Group group;
private Material whiteMat;
private Appearance whiteApp;
private TransformGroup tgroup;
private Shape3D sh;
private String fontName = "TestFont";
private String tabString[];
public Lettres()
{
// Define colors for lighting
Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
Color3f ambWhite = new Color3f(0.3f, 0.3f, 0.3f);
Color3f specular = new Color3f(1.0f, 1.0f, 1.0f);
// Create the white appearance node
whiteMat= new Material(ambWhite, black, white, specular, 100.f);
whiteMat.setLightingEnable(true);
whiteApp = new Appearance();
whiteApp.setMaterial(whiteMat);
point = new Point3f[2];
tabString = new String[2];
tabString[0]="A";
tabString[1]="B";
point[0]=new Point3f( 16.5f, -23.5f, 25.0f);
point[1]=new Point3f( -16.5f, 23.5f, 25.0f);
posSwitch = new Switch(Switch.CHILD_MASK);
posSwitch.setCapability(Switch.ALLOW_SWITCH_READ);
posSwitch.setCapability(Switch.ALLOW_SWITCH_WRITE);
posMask = new BitSet();
for (int i=0 ; i<2 ; i++)
{
String key = String.valueOf(i);
Transform3D transform3D = new Transform3D();
TransformGroup transformGroup = new TransformGroup(transform3D);
transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
transformGroup.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
Font3D f3d = new Font3D(new Font(fontName, Font.PLAIN, 30), new
FontExtrusion());
Text3D txt = new Text3D(f3d, tabString[i], point[i]);
txt.setCapability(Geometry.ALLOW_INTERSECT);
txt.setCapability(Text3D.ALLOW_STRING_READ);
txt.setCapability(Text3D.ALLOW_STRING_WRITE);
Shape3D sh = new Shape3D();
sh.setGeometry(txt);
sh.setAppearance(whiteApp);
sh.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
sh.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
sh.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
sh.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
sh.setCapability(Shape3D.ENABLE_PICK_REPORTING);
transformGroup.addChild(sh);
posSwitch.addChild(transformGroup);
posMask.set(i);
}
posSwitch.setChildMask(posMask);
group = new Group();
group.addChild(posSwitch);
}
public void setTransformGroup(TransformGroup transformGroup)
{
tgroup = transformGroup;
}
public Group getChild()
{
return group;
}
}
public class SourisBehavior extends PickMouseBehavior
{
Shape3D oldShape = null;
Lettres lettres;
public SourisBehavior(Canvas3D canvas, BranchGroup root,Bounds bounds,
Lettres lettres)
{
super(canvas, root, bounds);
this.setSchedulingBounds(bounds);
this.lettres = lettres;
root.addChild(this);
}
public void updateScene(int xpos, int ypos)
{
Shape3D shape;
shape = (Shape3D) pickScene.pickNode(pickScene.pickClosest(xpos,
ypos,PickObject.USE_GEOMETRY),PickObject.SHAPE3D);
System.out.println("shape : " + shape);
if (shape != null)
{
Geometry text = shape.getGeometry();
Text3D TextLettre = (Text3D) text;
TextLettre.setString("X");
// text = (Text3D) TextLettre;
// shape.setGeometry(text);
}
}
}
// The following allows FourByFour to be run as an application
// as well as an applet
//
public static void main(String[] args) {
new MainFrame(new FourByFour(), 360, 360);
}
}
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