package org.reprap.gui; import java.util.Properties; import java.awt.BorderLayout; import java.awt.Cursor; import java.awt.GraphicsConfigTemplate; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.io.File; import java.net.URL; import javax.media.j3d.Appearance; import javax.media.j3d.AudioDevice; import javax.media.j3d.Background; import javax.media.j3d.BoundingSphere; import javax.media.j3d.Bounds; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.GraphicsConfigTemplate3D; import javax.media.j3d.Material; import javax.media.j3d.PhysicalBody; import javax.media.j3d.PhysicalEnvironment; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.media.j3d.View; import javax.media.j3d.ViewPlatform; import javax.media.j3d.VirtualUniverse; import javax.swing.JPanel; import javax.vecmath.AxisAngle4d; import javax.vecmath.Color3f; import javax.vecmath.Point3d; import javax.vecmath.Vector3d; import com.sun.j3d.audioengines.javasound.JavaSoundMixer; import com.sun.j3d.utils.geometry.Box; import com.sun.j3d.utils.geometry.Cylinder; import com.sun.j3d.utils.geometry.Primitive; abstract public class Panel3D extends JPanel { //------------------------------------------------------------- // What follows are defaults. These values should be overwritten from // the reprap.properties file. protected String wv_location = null; // Translate and zoom scaling factors protected double mouse_tf = 50; protected double mouse_zf = 50; protected double xwv = 300; // The RepRap machine... protected double ywv = 300; // ...working volume in mm. protected double zwv = 300; // Factors for front and back clipping planes and so on protected double RADFAC = 0.7; protected double BACKFAC = 2.0; protected double FRONTFAC = 0.001; protected double BOUNDFAC = 3.0; protected String worldName = "RepRap World"; protected Vector3d wv_offset = new Vector3d(-17.3, -24.85, -2); // The background, and other colours protected Color3f bgColour = new Color3f(0.9f, 0.9f, 0.9f); protected Color3f selectedColour = new Color3f(0.6f, 0.2f, 0.2f); protected Color3f machineColour = new Color3f(0.3f, 0.4f, 0.3f); protected Color3f unselectedColour = new Color3f(0.3f, 0.3f, 0.3f); // That's the end of the configuration file data //-------------------------------------------------------------- protected static final Color3f black = new Color3f(0, 0, 0); protected Appearance default_app = null; // Colour for unselected parts protected Appearance picked_app = null; // Colour for the selected part protected Appearance wv_app = null; // Colour for the working volume protected Appearance extrusion_app = null; // Colour for extruded material protected BranchGroup wv_and_stls = new BranchGroup(); // Where in the scene // the // working volume and STLs // are joined on. protected STLObject world = null; // Everything protected STLObject workingVolume = null; // The RepRap machine itself. // The world in the Applet protected VirtualUniverse universe = null; protected BranchGroup sceneBranchGroup = null; protected Bounds applicationBounds = null; // Set up the RepRap working volume abstract protected BranchGroup createSceneBranchGroup() throws Exception; // Set bg light grey abstract protected Background createBackground(); abstract protected BranchGroup createViewBranchGroup( TransformGroup[] tgArray, ViewPlatform vp); protected void initialise() throws Exception { // ----------------------- // Set everything up from the properties file // All this needs to go into Preferences.java Properties props = new Properties(); URL url = ClassLoader.getSystemResource("reprap.properties"); props.load(url.openStream()); wv_location = props.getProperty("WorkingLocation"); // Translate and zoom scaling factors mouse_tf = 50; mouse_zf = 50; xwv = 300; // The RepRap machine... ywv = 300; // ...working volume in mm. zwv = 300; // Factors for front and back clipping planes and so on worldName = "RepRap World"; wv_offset = new Vector3d(-17.3, -24.85, -2); // The background, and other colours bgColour = new Color3f(0.9f, 0.9f, 0.9f); selectedColour = new Color3f(0.6f, 0.2f, 0.2f); machineColour = new Color3f(0.3f, 0.4f, 0.3f); unselectedColour = new Color3f(0.3f, 0.3f, 0.3f); // End of stuff from the preferences file // ---------------------- default_app = new Appearance(); default_app.setMaterial(new Material(unselectedColour, black, unselectedColour, black, 0f)); picked_app = new Appearance(); picked_app.setMaterial(new Material(selectedColour, black, selectedColour, black, 0f)); extrusion_app = new Appearance(); extrusion_app.setMaterial(new Material(unselectedColour, black, unselectedColour, black, 101f)); wv_app = new Appearance(); wv_app.setMaterial(new Material(machineColour, black, machineColour, black, 0f)); initJava3d(); } // How far away is the back? protected double getBackClipDistance() { return BACKFAC * getViewPlatformActivationRadius(); } // How close is the front? protected double getFrontClipDistance() { return FRONTFAC * getViewPlatformActivationRadius(); } // Set up the size of the world protected Bounds createApplicationBounds() { applicationBounds = new BoundingSphere(new Point3d(xwv * 0.5, ywv * 0.5, zwv * 0.5), BOUNDFAC * getViewPlatformActivationRadius()); return applicationBounds; } // (About) how big is the world? protected float getViewPlatformActivationRadius() { return (float) (RADFAC * Math.sqrt(xwv * xwv + ywv * ywv + zwv * zwv)); } // Where are we in the file system? public static URL getWorkingDirectory() { try { File file = new File(System.getProperty("user.dir")); return file.toURL(); } catch (Exception e) { System.err.println("getWorkingDirectory( ): can't get user dir."); } //return getCodeBase( ); return null; } // Return handles on big things above where we are interested public VirtualUniverse getVirtualUniverse() { return universe; } protected View createView(ViewPlatform vp) { View view = new View(); PhysicalBody pb = createPhysicalBody(); PhysicalEnvironment pe = createPhysicalEnvironment(); AudioDevice audioDevice = createAudioDevice(pe); if (audioDevice != null) { pe.setAudioDevice(audioDevice); audioDevice.initialize(); } view.setPhysicalEnvironment(pe); view.setPhysicalBody(pb); if (vp != null) view.attachViewPlatform(vp); view.setBackClipDistance(getBackClipDistance()); view.setFrontClipDistance(getFrontClipDistance()); Canvas3D c3d = createCanvas3D(); view.addCanvas3D(c3d); addCanvas3D(c3d); return view; } protected Canvas3D createCanvas3D() { GraphicsConfigTemplate3D gc3D = new GraphicsConfigTemplate3D(); gc3D.setSceneAntialiasing(GraphicsConfigTemplate.PREFERRED); GraphicsDevice gd[] = GraphicsEnvironment.getLocalGraphicsEnvironment() .getScreenDevices(); Canvas3D c3d = new Canvas3D(gd[0].getBestConfiguration(gc3D)); //c3d.setSize(getCanvas3dWidth(c3d), getCanvas3dHeight(c3d)); return c3d; } public javax.media.j3d.Locale getFirstLocale() { java.util.Enumeration en = universe.getAllLocales(); if (en.hasMoreElements() != false) return (javax.media.j3d.Locale) en.nextElement(); return null; } // The size of the world protected Bounds getApplicationBounds() { if (applicationBounds == null) applicationBounds = createApplicationBounds(); return applicationBounds; } // Fire up Java3D public void initJava3d() throws Exception { universe = createVirtualUniverse(); javax.media.j3d.Locale locale = createLocale(universe); BranchGroup sceneBG = createSceneBranchGroup(); ViewPlatform vp = createViewPlatform(); BranchGroup viewBranchGroup = createViewBranchGroup( getViewTransformGroupArray(), vp); createView(vp); Background background = createBackground(); if (background != null) sceneBG.addChild(background); locale.addBranchGraph(sceneBG); addViewBranchGroup(locale, viewBranchGroup); } protected PhysicalBody createPhysicalBody() { return new PhysicalBody(); } protected AudioDevice createAudioDevice(PhysicalEnvironment pe) { JavaSoundMixer javaSoundMixer = new JavaSoundMixer(pe); if (javaSoundMixer == null) System.out.println("create of audiodevice failed"); return javaSoundMixer; } protected PhysicalEnvironment createPhysicalEnvironment() { return new PhysicalEnvironment(); } protected ViewPlatform createViewPlatform() { ViewPlatform vp = new ViewPlatform(); vp.setViewAttachPolicy(View.RELATIVE_TO_FIELD_OF_VIEW); vp.setActivationRadius(getViewPlatformActivationRadius()); return vp; } // These two are probably wrong. protected int getCanvas3dWidth(Canvas3D c3d) { return getWidth(); } protected int getCanvas3dHeight(Canvas3D c3d) { return getHeight(); } protected VirtualUniverse createVirtualUniverse() { return new VirtualUniverse(); } protected void addViewBranchGroup(javax.media.j3d.Locale locale, BranchGroup bg) { locale.addBranchGraph(bg); } protected javax.media.j3d.Locale createLocale(VirtualUniverse u) { return new javax.media.j3d.Locale(u); } public TransformGroup[] getViewTransformGroupArray() { TransformGroup[] tgArray = new TransformGroup[1]; tgArray[0] = new TransformGroup(); Transform3D viewTrans = new Transform3D(); Transform3D eyeTrans = new Transform3D(); BoundingSphere sceneBounds = (BoundingSphere) sceneBranchGroup .getBounds(); // point the view at the center of the object Point3d center = new Point3d(); sceneBounds.getCenter(center); double radius = sceneBounds.getRadius(); Vector3d temp = new Vector3d(center); viewTrans.set(temp); // pull the eye back far enough to see the whole object double eyeDist = radius / Math.tan(Math.toRadians(40) / 2.0); temp.x = 0.0; temp.y = 0.0; temp.z = eyeDist; eyeTrans.set(temp); viewTrans.mul(eyeTrans); // set the view transform tgArray[0].setTransform(viewTrans); return tgArray; } protected void addCanvas3D(Canvas3D c3d) { setLayout(new BorderLayout()); add(c3d, BorderLayout.CENTER); doLayout(); c3d.setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); } protected void addBlock(BranchGroup root, Appearance appearance, double x1, double y1, double z1, double x2, double y2, double z2, float thickness) { root.addChild(addRectangularSegment(appearance, x1, y1, z1, x2, y2, z2, thickness)); } protected void addBlock(TransformGroup root, Appearance appearance, double x1, double y1, double z1, double x2, double y2, double z2, float thickness) { root.addChild(addRectangularSegment(appearance, x1, y1, z1, x2, y2, z2, thickness)); } protected TransformGroup addRectangularSegment(Appearance appearance, double x1, double y1, double z1, double x2, double y2, double z2, float thickness) { z1 += thickness / 2.0; z2 += thickness / 2.0; Point3d p1 = new Point3d(x1, y1, z1); //Point3d p2 = new Point3d(x2, y2, z2); Vector3d unity = new Vector3d(0, 1, 0); Vector3d v = new Vector3d(x2 - x1, y2 - y1, z2 - z1); Primitive segment = new Box(thickness, (float)v.length() / 2.0f, thickness, appearance); Transform3D transform = new Transform3D(); Vector3d translate = new Vector3d(p1); v.scale(0.5); translate.add(v); transform.setTranslation(translate); double angle = v.angle(unity); Vector3d axis = new Vector3d(); axis.cross(unity, v); AxisAngle4d rotationAngle = new AxisAngle4d(axis.x, axis.y, axis.z, angle); transform.setRotation(rotationAngle); TransformGroup tg = new TransformGroup(transform); tg.addChild(segment); return tg; } protected TransformGroup addCylindricalSegment(Appearance appearance, double x1, double y1, double z1, double x2, double y2, double z2, float thickness) { Point3d p1 = new Point3d(x1, y1, z1); //Point3d p2 = new Point3d(x2, y2, z2); Vector3d unity = new Vector3d(0, 1, 0); Vector3d v = new Vector3d(x2 - x1, y2 - y1, z2 - z1 + thickness / 2.0); Primitive segment = new Cylinder(thickness, (float)v.length(), appearance); Transform3D transform = new Transform3D(); Vector3d translate = new Vector3d(p1); v.scale(0.5); translate.add(v); transform.setTranslation(translate); double angle = v.angle(unity); Vector3d axis = new Vector3d(); axis.cross(unity, v); AxisAngle4d rotationAngle = new AxisAngle4d(axis.x, axis.y, axis.z, angle); transform.setRotation(rotationAngle); TransformGroup tg = new TransformGroup(transform); tg.addChild(segment); return tg; } protected double getScale() { return 1.0; } protected String getStlBackground() throws Exception { String path = getStlBackground(""); if (path != null) return path; path = getStlBackground("lib/"); if (path != null) return path; path = getStlBackground("../lib/"); if (path != null) return path; throw new Exception("Cannot locate background STL file"); } protected String getStlBackground(String subdir) { URL codebase = null; String stlURL = null; String stlPath = null; try { codebase = Panel3D.getWorkingDirectory(); stlPath = codebase.getPath() + subdir + wv_location; stlURL = codebase.toExternalForm() + subdir + wv_location; } catch (Exception e) { System.err .println("createSceneBranchGroup(): Exception finding working directory: " + codebase.toExternalForm()); e.printStackTrace(); } File f = new File(stlPath); if (f.exists()) return stlURL; return null; } }