/* * CapturingPicture.java * * Created on 8 januari 2001, 9:25 */ import java.net.URL; import javax.swing.*; import javax.media.j3d.*; import com.sun.j3d.loaders.vrml97.*; import java.awt.*; import java.applet.*; import com.sun.j3d.utils.geometry.ColorCube; import javax.vecmath.*; /** This class is a subclass of JFrame and holds a CapturingCanvas3D. It * is used to save PART vrml files to a JPEG format so that they can be shown in * sets. Each VRMl File is rotated 45 degrees around the X and Y axiss */ public class CapturingPicture extends JFrame{ /** This URL holds the location of the VRML file */ private URL url; /** VrmlScene is used by the VRMLLoader and holds the entire VRML file */ private VrmlScene vrmlScene; /** This BranchGroup holds a Java3d tree representing the VRML file */ private BranchGroup sceneGroup; /** This BranchGroup holds the content of the VRML file */ private BranchGroup scene; /** This is a AWT component that captures the VRML file into a JPEG */ private CapturingCanvas3D cCanvas; /** This is the universe where the part we be loaded. It holds all * Java3D dependend objects */ private VirtualUniverse universe; /** The Locale is attached to the Virtual universe and holds only BranchGroups */ private Locale locale; /** vpRoot holds all vieuwing dependend objects */ private BranchGroup vpRoot; /** this TransformGroup is responsible for the location of the View */ private TransformGroup viewTransformGroup; /** The view holds information on how the object is seen */ private View view; /** The viewplatform is a representation of the Camera. This object is usually * transformed by a TransformGroup */ private ViewPlatform viewPlatform; /** This object holds information on the Viewing Output */ private PhysicalBody body; /** This object holds information on the Viewing Output */ private PhysicalEnvironment environment; /** This transform3d is responsible for the rotation, location and size of the * of the viewplatform */ private Transform3D viewTransform; /** These BranchGroup holds all content dependend objects */ private BranchGroup sceneRoot; /** This is an AmbientLight usesd to light up the scene */ private AmbientLight ambLight; /** This is a light, attached to the viewTransformGroup in order to give the visible * objects extra light */ private DirectionalLight headLight; /** This method does the actual capturing of the scene. * @param URL This URL holds the location of the VRML Scene * @param file This String holds the name of the destination file * @param directory This String holds the destination directory */ public CapturingPicture(String URL, String file, String directory){ this.getContentPane().setLayout(new BorderLayout()); // Create a Canvas3D object cCanvas = new CapturingCanvas3D(null,file,directory); cCanvas.writeJPEG_ = true; cCanvas.repaint(); this.getContentPane().add(cCanvas); // Create a Virtual Universe object universe = new VirtualUniverse(); // Create a Locale object and connect it to the universe object locale = new Locale(universe); //================================================================= // Create a view branch graph // Create a BranchGroup note for the view platform vpRoot = new BranchGroup(); SetCapability.settingCap(this.vpRoot, SetCapability.CAPTPICTURE_vpROOT_CAPABILITY); BranchGroup temp = new BranchGroup(); SetCapability.settingCap(temp, SetCapability.CAPTPICTURE_TEMP_CAPABILITY); temp = this.createSceneGraph(URL); Transform3D tempRotate = new Transform3D(); Transform3D rotate = new Transform3D(); rotate.rotX(Math.PI/4.0d); tempRotate.rotY(Math.PI/4.0d); rotate.mul(tempRotate); TransformGroup objRotate = new TransformGroup(rotate); objRotate.addChild(temp); vpRoot.addChild(objRotate); view = new View(); // Create a TransformGroup object. viewTransform = new Transform3D(); BoundingSphere bound= new BoundingSphere(temp.getBounds()); double radius = bound.getRadius(); double eyeDist = (1.3999999999999999D * radius )/ Math.tan(view.getFieldOfView() / 2D); viewTransform.set(new Vector3f(0.0f , 0.0f, (float) eyeDist )); view.setBackClipDistance(eyeDist + 3 * radius); //viewTransform.set(new Vector3f(0.0f, 0.0f, 3.0f)); viewTransformGroup = new TransformGroup(viewTransform); SetCapability.settingCap(this.viewTransformGroup, SetCapability.CAPTPICTURE_VIEWTG_CAPABILITY); // Create a View object // Create a ViewPlatform object viewPlatform = new ViewPlatform(); // Create a PhysicalBody object body = new PhysicalBody(); // Create a PhysicalEnvironment object environment = new PhysicalEnvironment(); // Attach the ViewPlatform, PhysicalBody, PhysicalEnvironment, // and Canvas3D objects to the View object view.setPhysicalBody(body); view.setPhysicalEnvironment(environment); view.attachViewPlatform(viewPlatform); view.addCanvas3D(cCanvas); // Attach the ViewPlatform object to the TransformGroup object viewTransformGroup.addChild(viewPlatform); // Attach the viewTransformGroup to the BranchGroup vpRoot vpRoot.addChild(viewTransformGroup); sceneRoot = new BranchGroup(); SetCapability.settingCap(this.sceneRoot, SetCapability.CAPTPICTURE_SCENEROOT_CAPABILITY); // maken van een ambientLight BoundingSphere lightBounds = new BoundingSphere(new Point3d(), Double.MAX_VALUE); ambLight = new AmbientLight(true, new Color3f(1.0f, 1.0f, 1.0f)); ambLight.setInfluencingBounds(lightBounds); SetCapability.settingCap(this.ambLight, SetCapability.CAPTPICTURE_AMBLIGHT_CAPABILITY); sceneRoot.addChild(ambLight); // maken van een DirectionalLight headLight = new DirectionalLight(); SetCapability.settingCap(this.headLight, SetCapability.CAPTPICTURE_HEADLIGHT_CAPABILITY); headLight.setInfluencingBounds(lightBounds); sceneRoot.addChild(headLight); sceneRoot.addChild(this.scene); locale.addBranchGraph(vpRoot); locale.addBranchGraph(sceneRoot); this.setSize(200,200); this.show(); } /** This method loads the VRML file and returns its BranchGroup * @param URL The location of the VRML file * @return The VRML BranchGroup (rudementary) */ public BranchGroup createSceneGraph(String URL){ try{ url = new URL( URL ); VrmlLoader loader = new VrmlLoader(); vrmlScene = ( VrmlScene ) loader.load( url ); sceneGroup = vrmlScene.getSceneGroup(); }catch( java.io.IOException e ) { System.err.println( "IO exception reading URL" ); }catch( vrml.InvalidVRMLSyntaxException e ) { System.err.println( "VRML parse error" ); e.printStackTrace( System.err ); }catch(Exception e) { e.printStackTrace(System.err); } return sceneGroup; } /** Used to make this class operate stand-alone * @param args not used */ public static void main (String args[]) { String test = new String("http://w2000-jurgenv/sets/kegel.wrl"); CapturingPicture cPicture = new CapturingPicture(test,"kegel","c:\\Inetpub\\wwwroot\\sets\\"); cPicture.setSize(200,200); cPicture.show(); } }