Text To Image 3D

This simple program shows how to apply a texture Image to a rotated 3D box. The user can put a title into the canvas. A list that allows the user to select one of the available fonts on his/her local system is also provided. The output can be saved to disk as a PNG file.

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import com.sun.j3d.utils.geometry.Primitive; import com.sun.j3d.utils.geometry.Box; import com.sun.j3d.utils.image.TextureLoader; import com.sun.j3d.utils.universe.SimpleUniverse; import java.awt.*; import java.awt.event.*; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import javax.media.j3d.Appearance; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.Font3D; import javax.media.j3d.FontExtrusion; import javax.media.j3d.GraphicsContext3D; import javax.media.j3d.ImageComponent; import javax.media.j3d.ImageComponent2D; import javax.media.j3d.Material; import javax.media.j3d.Raster; import javax.media.j3d.Shape3D; import javax.media.j3d.Text3D; import javax.media.j3d.Texture; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.swing.*; import javax.vecmath.Color3f; import javax.vecmath.Point3f; import javax.vecmath.Vector3f; public class TextToImage3D extends JFrame{ private JPanel panel=null; private JTextField tfTitle=null; private JList lFont=null; private JScrollPane splFont=null; private JButton bLoad=null; private JButton bShow=null; private JButton bSave=null; private BranchGroup bg=null; private SimpleUniverse su=null; private Canvas3D canvas=null; private Box box=null; public TextToImage3D(){ super("Text To Image 3D"); setSize(700,550); setLayout(new BorderLayout()); panel=new JPanel(); panel.setPreferredSize(new Dimension(200,550)); panel.setLayout(new FlowLayout()); tfTitle=new JTextField(); tfTitle.setColumns(16); panel.add(tfTitle); GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment(); String []fontFamilies=ge.getAvailableFontFamilyNames(); lFont=new JList(fontFamilies); splFont=new JScrollPane(lFont); panel.add(splFont); bLoad=new JButton("Load"); bLoad.addActionListener(new ButtonHandler()); panel.add(bLoad); bShow=new JButton("Show"); bShow.addActionListener(new ButtonHandler()); panel.add(bShow); bSave=new JButton("Save"); bSave.addActionListener(new ButtonHandler()); panel.add(bSave); add("West",panel); GraphicsConfiguration config=SimpleUniverse.getPreferredConfiguration(); canvas=new Canvas3D(config); canvas.setSize(500,550); add("Center",canvas); su=new SimpleUniverse(canvas); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); } class ButtonHandler implements ActionListener{ public void actionPerformed(ActionEvent e){ if(e.getActionCommand()=="Load"){ su.getViewingPlatform().setNominalViewingTransform(); bg=new BranchGroup(); FileDialog fd=new FileDialog(TextToImage3D.this,"Open Image File",FileDialog.LOAD); fd.setDirectory("C:\\"); fd.setVisible(true); String filename=fd.getDirectory()+fd.getFile(); TextureLoader loader = new TextureLoader(filename,"RGB", new Container()); Texture texture = loader.getTexture(); Appearance ap = new Appearance(); ap.setTexture(texture); box=new Box(0.5f,0.5f,0.5f,Primitive.GENERATE_NORMALS + Primitive.GENERATE_TEXTURE_COORDS,ap); TransformGroup tg = new TransformGroup(); Transform3D t3d = new Transform3D(); Vector3f v3f = new Vector3f(0.0f,-0.2f,0.0f); t3d.setTranslation(v3f); Transform3D rot = new Transform3D(); rot.rotX(Math.PI / 5); rot.rotY(Math.PI / 5); t3d.mul(rot); tg.setTransform(t3d); tg.addChild(box); bg.addChild(tg); su.addBranchGraph(bg); } if(e.getActionCommand()=="Show"){ su.getViewingPlatform().setNominalViewingTransform(); bg=new BranchGroup(); String temp=tfTitle.getText(); String font=(String)lFont.getSelectedValue(); Font3D f3d=new Font3D(new Font(font,Font.PLAIN,1),new FontExtrusion()); Text3D tx3d=new Text3D(f3d,temp,new Point3f(0.0f,1.0f,-1.9f)); tx3d.setAlignment(Text3D.ALIGN_CENTER); Color3f white = new Color3f(1.0f,1.0f,1.0f); Color3f blue = new Color3f(0.2f,0.2f,1f); Appearance a = new Appearance(); a.setCapability(Appearance.ALLOW_TEXTURE_WRITE); a.setCapability(Appearance.ALLOW_TEXGEN_WRITE); Material m = new Material(blue,blue,blue,white,60.0f); m.setLightingEnable(true); a.setMaterial(m); Shape3D sh=new Shape3D(); sh.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE); sh.setGeometry(tx3d); sh.setAppearance(a); bg.addChild(sh); su.addBranchGraph(bg); } if(e.getActionCommand()=="Save"){ GraphicsContext3D ctx=canvas.getGraphicsContext3D(); int w=canvas.getWidth(); int h=canvas.getHeight(); BufferedImage bi=new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB); ImageComponent2D im=new ImageComponent2D(ImageComponent.FORMAT_RGB,bi); Raster ras = new Raster(new Point3f(-1.0f,-1.0f,-1.0f ),Raster.RASTER_COLOR,0,0,w,h,im,null ); ctx.flush(true); ctx.readRaster(ras); BufferedImage bufImage = new BufferedImage(w,h, BufferedImage.TYPE_INT_ARGB); bufImage=ras.getImage().getImage(); try { ImageIO.write(bufImage,"png",new File("3dresult.png") ); } catch (IOException ioe) { ioe.printStackTrace(); } } } } public static void main(String[] args){ TextToImage3D ap=new TextToImage3D(); } }