List of usage examples for javax.media.j3d PolygonAttributes PolygonAttributes
public PolygonAttributes()
From source file:ViewProj.java
public BranchGroup createVWorldViewSG() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); objRoot.setCapability(BranchGroup.ALLOW_DETACH); // setup a transform group to hold the scaled scene TransformGroup objTrans = new TransformGroup(); objRoot.addChild(objTrans);//from w w w .j av a2 s .c om // get the eye point, field of view and clip distances float fov = (float) view.getFieldOfView(); // figure out the angle factors to find points along the edges // of the FOV // X = fovSpreadX * (Y - eyeVW.y) + eyeVW.x; float fovSpreadX = (float) Math.tan(fov / 2); // Z = fovSpreadZ * (X - eyeVW.x) + eyeVW.z; float fovSpreadZ = 1.0f / fovSpreadX; //System.out.println("fovSpreadX = " + fovSpreadX); //System.out.println("fovSpreadZ = " + fovSpreadZ); Transform3D vpTransform = new Transform3D(); viewingPlatform.getViewPlatformTransform().getTransform(vpTransform); Vector3f vpTranslation = new Vector3f(); vpTransform.get(vpTranslation); eyePtVW.set(vpTranslation); eyePtVW.negate(); // get the eye point in our 2D coord system. Point3f eyePt = new Point3f(0.0f, eyePtVW.z, 0.1f); float frontClipDist = (float) view.getFrontClipDistance(); float backClipDist = (float) view.getBackClipDistance(); // set up the clip plane lines Point3f[] cpPoints = new Point3f[5]; cpPoints[0] = new Point3f(frontClipDist * fovSpreadX, eyePtVW.z + frontClipDist, 0.1f); cpPoints[1] = new Point3f(cpPoints[0]); cpPoints[1].x *= -1; Point3f backLeft = new Point3f(-backClipDist * fovSpreadX, eyePtVW.z + backClipDist, 0.1f); cpPoints[2] = backLeft; Point3f backRight = new Point3f(backLeft); backRight.x *= -1; cpPoints[3] = backRight; cpPoints[4] = cpPoints[0]; //for (int i = 0; i < 4; i++) { // System.out.println("cpPoints[" + i + "] = " + cpPoints[i]); //} int[] cpLength = new int[1]; cpLength[0] = 5; LineStripArray cpLines = new LineStripArray(5, LineArray.COORDINATES, cpLength); cpLines.setCoordinates(0, cpPoints); Appearance cpApp = new Appearance(); ColoringAttributes cpCa = new ColoringAttributes(blue, ColoringAttributes.SHADE_FLAT); cpApp.setColoringAttributes(cpCa); Shape3D cpShape = new Shape3D(cpLines, cpApp); objTrans.addChild(cpShape); // get the limits of the space float minY = eyePt.y; float maxY = backLeft.y; float minX = backLeft.x; float maxX = backRight.x; // figure out the X and Y extents and offsets float deltaX = maxX - minX; float deltaY = maxY - minY; float offsetX = -(maxX + minX) / 2.0f; float offsetY = -(maxY + minY) / 2.0f; float gridSize = Math.max(deltaX, deltaY); // scale the grid slightly to give a border around the edge gridSize *= 1.1f; //System.out.println("offsetX = " + offsetX); //System.out.println("offsetY = " + offsetY); // Scale the view to fit -1 to 1 Transform3D trans = new Transform3D(); trans.set(new Vector3f(offsetX, offsetY, 0.0f), 2.0f / gridSize); objTrans.setTransform(trans); // figure out a grid step that is a multiple of 10 which keeps the // number of steps less than 30. float gridStep = 1.0f; while ((gridSize / gridStep) > 30.0) { gridStep *= 10; } int gridNumSteps = (int) Math.ceil(gridSize / gridStep) + 1; // allocate the grid points array, four points for each step (x and y) // with a couple extra points for the extra grid points added // below int gridNumPoints = 4 * (gridNumSteps + 4); Point3f[] gridPts = new Point3f[gridNumPoints]; for (int i = 0; i < gridNumPoints; i++) { gridPts[i] = new Point3f(); } // find the grid limits. Add a step on each side to make sure // the grid is larger than the view float gridMinY = gridStepFloor(minY, gridStep) - gridStep; float gridMaxY = gridStepCeil(maxY, gridStep) + gridStep; float gridMinX = gridStepFloor(minX, gridStep) - gridStep; float gridMaxX = gridStepCeil(maxX, gridStep) + gridStep; //System.out.println("gridMinY = " + gridMinY); //System.out.println("gridMaxY = " + gridMaxY); //System.out.println("gridMinX = " + gridMinX); //System.out.println("gridMaxX = " + gridMaxX); // set up the background grid Appearance bgApp = new Appearance(); ColoringAttributes bgCa = new ColoringAttributes(); bgCa.setColor(grey); LineAttributes bgLa = new LineAttributes(); bgApp.setColoringAttributes(bgCa); // clear out the clip grid point list numClipGridPts = 0; // set up the vertical lines int numPts = 0; for (float x = gridMinX; x <= gridMaxX; x += gridStep) { gridPts[numPts].x = x; gridPts[numPts].y = gridMinY; gridPts[numPts].z = -0.2f; gridPts[numPts + 1].x = x; gridPts[numPts + 1].y = gridMaxY; gridPts[numPts + 1].z = -0.2f; numPts += 2; // try to add a line to the clipped grid // find the intersection of the clipped line with the FOV sides // this is a distance relative to the eye float clipZ = fovSpreadZ * Math.abs(x - eyePtVW.x); if (clipZ < frontClipDist) { // clip to front clip plane clipZ = frontClipDist; } if (clipZ < backClipDist) { // clip to back clip plane // line is not clipped clipGridPtsVW[numClipGridPts].x = x; clipGridPtsVW[numClipGridPts].y = clipZ + eyePtVW.z; clipGridPtsVW[numClipGridPts].z = -0.1f; clipGridPtsVW[numClipGridPts + 1].x = x; clipGridPtsVW[numClipGridPts + 1].y = backClipDist + eyePtVW.z; clipGridPtsVW[numClipGridPts + 1].z = -0.1f; numClipGridPts += 2; } } LineArray vertLa = new LineArray(numPts, LineArray.COORDINATES); vertLa.setCoordinates(0, gridPts, 0, numPts); Shape3D vertShape = new Shape3D(vertLa, bgApp); objTrans.addChild(vertShape); // set up the horizontal lines numPts = 0; for (float y = gridMinY; y <= gridMaxY; y += gridStep) { gridPts[numPts].x = gridMinX; gridPts[numPts].y = y; gridPts[numPts++].z = -0.2f; gridPts[numPts].x = gridMaxX; gridPts[numPts].y = y; gridPts[numPts++].z = -0.2f; // try to add a line to the clipped grid // find the intersection of the clipped line with the FOV sides // this is a distance relative to the eye float clipDist = (y - eyePtVW.z); if ((clipDist > frontClipDist) && (clipDist < backClipDist)) { float clipX = fovSpreadX * clipDist; clipGridPtsVW[numClipGridPts].x = -clipX; clipGridPtsVW[numClipGridPts].y = y; clipGridPtsVW[numClipGridPts].z = -0.1f; clipGridPtsVW[numClipGridPts + 1].x = clipX; clipGridPtsVW[numClipGridPts + 1].y = y; clipGridPtsVW[numClipGridPts + 1].z = -0.1f; numClipGridPts += 2; } } LineArray horizLa = new LineArray(numPts, LineArray.COORDINATES); horizLa.setCoordinates(0, gridPts, 0, numPts); Shape3D horizShape = new Shape3D(horizLa, bgApp); objTrans.addChild(horizShape); // draw the clipped grid. if (numClipGridPts > 0) { LineArray clipLa = new LineArray(numClipGridPts, LineArray.COORDINATES); clipLa.setCoordinates(0, clipGridPtsVW, 0, numClipGridPts); Appearance clipGridApp = new Appearance(); ColoringAttributes clipCa = new ColoringAttributes(black, ColoringAttributes.SHADE_FLAT); clipGridApp.setColoringAttributes(clipCa); LineAttributes clipGridLa = new LineAttributes(); Shape3D clipShape = new Shape3D(clipLa, clipGridApp); objTrans.addChild(clipShape); } // set up the coordinate system Appearance coordSysApp = new Appearance(); LineAttributes coordSysLa = new LineAttributes(); coordSysLa.setLineWidth(3.0f); coordSysApp.setLineAttributes(coordSysLa); ColoringAttributes coordSysCa = new ColoringAttributes(grey, ColoringAttributes.SHADE_FLAT); coordSysApp.setColoringAttributes(coordSysCa); Point3f[] coordSysPts = new Point3f[4]; coordSysPts[0] = new Point3f(gridMinX, 0, -0.5f); coordSysPts[1] = new Point3f(gridMaxX, 0, -0.5f); coordSysPts[2] = new Point3f(0, gridMinY, -0.5f); coordSysPts[3] = new Point3f(0, gridMaxY, -0.5f); LineArray coordSysLines = new LineArray(4, LineArray.COORDINATES); coordSysLines.setCoordinates(0, coordSysPts); Shape3D coordSysShape = new Shape3D(coordSysLines, coordSysApp); objTrans.addChild(coordSysShape); // set up the circle Appearance circleApp = new Appearance(); ColoringAttributes circleCa = new ColoringAttributes(); circleCa.setColor(red); circleApp.setColoringAttributes(circleCa); PolygonAttributes pa = new PolygonAttributes(); pa.setCullFace(PolygonAttributes.CULL_NONE); circleApp.setPolygonAttributes(pa); int step = 360 / (numCirclePts - 1); for (int deg = 0; deg < 360; deg += step) { double angle = Math.toRadians(deg); circlePtsVW[deg / 10].x = sphereRadius * (float) Math.sin(angle); circlePtsVW[deg / 10].y = sphereRadius * (float) Math.cos(angle); circlePtsVW[deg / 10].z = -0.3f; } circlePtsVW[numCirclePts - 1].set(circlePtsVW[0]); int[] lineStripLength = new int[1]; lineStripLength[0] = numCirclePts; //LineStripArray circleLineStrip = new LineStripArray(numCirclePts, // LineArray.COORDINATES, lineStripLength); TriangleFanArray circleLineStrip = new TriangleFanArray(numCirclePts, LineArray.COORDINATES, lineStripLength); circleLineStrip.setCoordinates(0, circlePtsVW); Shape3D circleShape = new Shape3D(circleLineStrip, circleApp); objTrans.addChild(circleShape); return objRoot; }
From source file:ViewProj.java
public BranchGroup createProjViewSG() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); objRoot.setCapability(BranchGroup.ALLOW_DETACH); // setup a transform group to hold the scaled scene TransformGroup objTrans = new TransformGroup(); Transform3D scale = new Transform3D(); scale.set(0.9);/*ww w . ja v a2 s . c o m*/ objTrans.setTransform(scale); objRoot.addChild(objTrans); // create the clip limits line Point3f[] cpPoints = new Point3f[5]; cpPoints[0] = new Point3f(-1, -1, 0.1f); cpPoints[1] = new Point3f(1, -1, 0.1f); cpPoints[2] = new Point3f(1, 1, 0.1f); cpPoints[3] = new Point3f(-1, 1, 0.1f); cpPoints[4] = cpPoints[0]; int[] cpLength = new int[1]; cpLength[0] = 5; LineStripArray cpLines = new LineStripArray(5, LineArray.COORDINATES, cpLength); cpLines.setCoordinates(0, cpPoints); Appearance cpApp = new Appearance(); ColoringAttributes cpCa = new ColoringAttributes(blue, ColoringAttributes.SHADE_FLAT); cpApp.setColoringAttributes(cpCa); LineAttributes cpLa = new LineAttributes(); Shape3D cpShape = new Shape3D(cpLines, cpApp); objTrans.addChild(cpShape); // transform and render the clip grid points updateProjTrans(); if (numClipGridPts > 0) { // transform the clipGridPts for (int i = 0; i < numClipGridPts; i++) { projectPoint(clipGridPtsVW[i], clipGridPtsProj[i]); } LineArray clipLn = new LineArray(numClipGridPts, LineArray.COORDINATES); clipLn.setCoordinates(0, clipGridPtsProj, 0, numClipGridPts); Appearance clipGridApp = new Appearance(); ColoringAttributes clipCa = new ColoringAttributes(black, ColoringAttributes.SHADE_FLAT); clipGridApp.setColoringAttributes(clipCa); LineAttributes clipLa = new LineAttributes(); Shape3D clipShape = new Shape3D(clipLn, clipGridApp); objTrans.addChild(clipShape); } // set up the circle Appearance circleApp = new Appearance(); ColoringAttributes circleCa = new ColoringAttributes(); circleCa.setColor(red); circleApp.setColoringAttributes(circleCa); PolygonAttributes pa = new PolygonAttributes(); pa.setCullFace(PolygonAttributes.CULL_NONE); circleApp.setPolygonAttributes(pa); // transform the circlePts for (int i = 0; i < numCirclePts; i++) { projectPoint(circlePtsVW[i], circlePtsProj[i]); } int[] lineStripLength = new int[1]; lineStripLength[0] = numCirclePts; //LineStripArray circleLineStrip = new LineStripArray(numCirclePts, // LineArray.COORDINATES, lineStripLength); TriangleFanArray circleLineStrip = new TriangleFanArray(numCirclePts, LineArray.COORDINATES, lineStripLength); circleLineStrip.setCoordinates(0, circlePtsProj); Shape3D circleShape = new Shape3D(circleLineStrip, circleApp); objTrans.addChild(circleShape); return objRoot; }
From source file:AppearanceTest.java
protected NodeComponent createComponent() { return (NodeComponent) new PolygonAttributes(); }
From source file:Demo3D.java
/** * Construction of the desired borders of the virtual universe (cube). * // w w w . j a va 2s . c o m * @return javax.media.j3d.Shape3D myUniverse - the constructed borders of * the virtual universe */ public Shape3D myInternalUniverse() { cube = new QuadArray(cubeFaces.length, QuadArray.COORDINATES | QuadArray.TEXTURE_COORDINATE_2); ////////////////////// Geometric part /////////////////////////// // Scaling of the faces. for (int i = 0; i < cubeFaces.length; i++) cubeFaces[i].scale(scale_XYZ); cube.setCoordinates(0, cubeFaces); for (int i = 0; i < cubeFaces.length; i++) { // With i mod 4 ==> 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 for // the 4 vertices of the 6 faces, thus each vertex has // a point in the texture space. In this case, each cube's // face has the same texture coordinates. cube.setTextureCoordinate(0, i, textCoord[i % 4]); } // The geometry is passed to the instance this of the cube. this.setGeometry(cube); ////////////////////// Appearance part /////////////////////////// Appearance appearance = new Appearance(); // This code block is only necessary to insure, in all cases, the // correct // rendering of the 6 faces of the cube (bug in Java3D version 1.2.0 !). // Set up the polygon's rendering-mode PolygonAttributes polygonAttributes = new PolygonAttributes(); polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL); appearance.setPolygonAttributes(polygonAttributes); // Loading the texture for the 6 cube's faces. newTextureLoader = new NewTextureLoader("Images/Galaxies.gif"); newTextureLoader.setImageObserver(newTextureLoader.getImageObserver()); texture = newTextureLoader.getTexture(); appearance.setTexture(texture); // Application modes of the texture textAttr = new TextureAttributes(); textAttr.setTextureMode(TextureAttributes.MODULATE); // there still are: // BLEND, COMBINE, // DECAL, and REPLACE appearance.setTextureAttributes(textAttr); // The appearance is passed to the instance this of the cube. this.setAppearance(appearance); return this; }
From source file:Demo3D.java
/** * Construction of the desired borders of the virtual universe (cube). * /*from w ww . j av a2s .c om*/ * @return javax.media.j3d.Shape3D myUniverse - the constructed borders of * the virtual universe */ public Shape3D myExternalUniverse() { cube = new QuadArray(cubeFaces.length, QuadArray.COORDINATES | QuadArray.TEXTURE_COORDINATE_2); ////////////////////// Geometric part /////////////////////////// // Scaling of the faces. for (int i = 0; i < cubeFaces.length; i++) cubeFaces[i].scale(scale_XYZ); cube.setCoordinates(0, cubeFaces); for (int i = 0; i < cubeFaces.length; i++) { // With i mod 4 ==> 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 for // the 4 vertices of the 6 faces, thus each vertex has // a point in the texture space. In this case, each cube's // face has the same texture coordinates. cube.setTextureCoordinate(0, i, textCoord[i % 4]); } // The geometry is passed to the instance this of the cube. this.setGeometry(cube); ////////////////////// Appearance part /////////////////////////// Appearance appearance = new Appearance(); // This code block is only necessary to insure, in all cases, the // correct // rendering of the 6 faces of the cube (bug in Java3D version 1.2.0 !). // Set up the polygon's rendering-mode PolygonAttributes polygonAttributes = new PolygonAttributes(); polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL); appearance.setPolygonAttributes(polygonAttributes); // Loading the texture for the 6 cube's faces. newTextureLoader = new NewTextureLoader("Images/Ciel_Outside.jpg"); newTextureLoader.setImageObserver(newTextureLoader.getImageObserver()); texture = newTextureLoader.getTexture(); appearance.setTexture(texture); // Application modes of the texture textAttr = new TextureAttributes(); textAttr.setTextureMode(TextureAttributes.MODULATE); // there still are: // BLEND, COMBINE, // DECAL, and REPLACE appearance.setTextureAttributes(textAttr); // The appearance is passed to the instance this of the cube. this.setAppearance(appearance); return this; }
From source file:Demo3D.java
/** * This methode serves to construct the earth. * /*from www. j a v a 2 s .c o m*/ * @return com.sun.j3d.utils.geometry.Sphere earth - the constructed earth */ public Sphere myEarth() { // Optical properties of the earth. // Ambient-diffuse-reflection coefficient diffAmb = new Color3f(1.0f, 1.0f, 1.0f); // Diffuse-reflection coefficient reflDiff = new Color3f(1.0f, 1.0f, 1.0f); // Specular-reflection coefficient (reflectance function) reflSpec = new Color3f(0.0f, 0.0f, 0.1f); // c = shininess: cos^c in the specular reflection c = 1; // Emitted light emittedLight = new Color3f(0.0f, 0.0f, 0.0f); appearance = new Appearance(); // Create the material and set up the optical properties. material = new Material(diffAmb, emittedLight, reflDiff, reflSpec, c); appearance.setMaterial(material); // Set up the polygon's rendering-mode (with the polygonAttributes) and // the shading-mode (with the coloringAttributes). polygonAttributes = new PolygonAttributes(); coloringAttributes = new ColoringAttributes(); // Points if (renderingType.compareTo("points") == 0) { polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_POINT); } /* Lines*/ else if (renderingType.compareTo("lines") == 0) { polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_LINE); } /* Polygons */ else if (renderingType.compareTo("polygons") == 0) { /* is the default value*/ polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL); coloringAttributes.setShadeModel(ColoringAttributes.SHADE_FLAT); } /* Gouraud */ else if (renderingType.compareTo("gouraud") == 0) { polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL); /* is the default value*/ coloringAttributes.setShadeModel(ColoringAttributes.SHADE_GOURAUD); /* is the default value*/ } else if (renderingType.compareTo("texture") == 0) { polygonAttributes.setPolygonMode(PolygonAttributes.POLYGON_FILL); /* is the default value*/ coloringAttributes.setShadeModel(ColoringAttributes.SHADE_GOURAUD); /* is the default value*/ /* Loading of the texture*/ newTextureLoader = new NewTextureLoader("Images/Earth.jpg"); newTextureLoader.setImageObserver(newTextureLoader.getImageObserver()); texture = newTextureLoader.getTexture(); appearance.setTexture(texture); /* Application mode of the texture */ textAttr = new TextureAttributes(); textAttr.setTextureMode(TextureAttributes.REPLACE); /* there still are: BLEND, COMBINE, DECAL, and MODULATE*/ appearance.setTextureAttributes(textAttr); } appearance.setPolygonAttributes(polygonAttributes); appearance.setColoringAttributes(coloringAttributes); /* Construction of the earth with all its features.*/ earth = new Sphere(scale_XYZ, Sphere.GENERATE_NORMALS | Sphere.GENERATE_TEXTURE_COORDS, 10, appearance); return earth; }