Examples with KnotMesh org.fxyz.shapes.primitives.KnotMesh used on opensource projects

Example 1 with KnotMesh

use of org.fxyz.shapes.primitives.KnotMesh in project FXyzLib by Birdasaur.

the class RayTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.WHEAT);
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-40);
    cameraTransform.ry.setAngle(-45.0);
    cameraTransform.rx.setAngle(-10.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    cameraTransform.getChildren().add(new AmbientLight(Color.WHITE));
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    scene.setCamera(camera);
    rotateY = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
    Group group = new Group();
    group.getChildren().add(cameraTransform);
    knot = new KnotMesh(2d, 1d, 0.4d, 2d, 3d, 100, 20, 0, 0);
    // knot.setDrawMode(DrawMode.LINE);
    knot.setCullFace(CullFace.NONE);
    knot.setSectionType(SectionType.TRIANGLE);
    spring = new CurvedSpringMesh(6d, 2d, 0.4d, 25d, 6.25d * 2d * Math.PI, 1000, 60, 0, 0);
    spring.getTransforms().addAll(new Translate(6, -6, 0));
    spring.setDrawMode(DrawMode.LINE);
    spring.setCullFace(CullFace.NONE);
    // spring.setTextureModeVertices3D(256*256,dens);
    // NONE
    knot.setTextureModeNone(Color.BROWN);
    spring.setTextureModeNone(Color.BROWN);
    knot.getTransforms().addAll(new Rotate(0, Rotate.X_AXIS), rotateY);
    group.getChildren().add(knot);
    group.getChildren().add(spring);
    /*
        Origin in knot
        Target in spring
        */
    org.fxyz.geometry.Point3D locOrigin = knot.getOrigin();
    Point3D gloOrigin = knot.localToScene(new Point3D(locOrigin.x, locOrigin.y, locOrigin.z));
    org.fxyz.geometry.Point3D locTarget1 = spring.getOrigin();
    Point3D locTarget2 = new Point3D(locTarget1.x, locTarget1.y, locTarget1.z);
    Point3D gloTarget = spring.localToScene(locTarget2);
    Point3D gloDirection = gloTarget.subtract(gloOrigin).normalize();
    Point3D gloOriginInLoc = spring.sceneToLocal(gloOrigin);
    Bounds locBounds = spring.getBoundsInLocal();
    Bounds gloBounds = spring.localToScene(locBounds);
    Sphere s = new Sphere(0.05d);
    s.getTransforms().add(new Translate(gloOrigin.getX(), gloOrigin.getY(), gloOrigin.getZ()));
    s.setMaterial(new PhongMaterial(Color.GREENYELLOW));
    group.getChildren().add(s);
    s = new Sphere(0.05d);
    s.getTransforms().add(new Translate(gloTarget.getX(), gloTarget.getY(), gloTarget.getZ()));
    s.setMaterial(new PhongMaterial(Color.GREENYELLOW));
    Point3D dir = gloTarget.subtract(gloOrigin).crossProduct(new Point3D(0, -1, 0));
    double angle = Math.acos(gloTarget.subtract(gloOrigin).normalize().dotProduct(new Point3D(0, -1, 0)));
    double h1 = gloTarget.subtract(gloOrigin).magnitude();
    Cylinder c = new Cylinder(0.01d, h1);
    c.getTransforms().addAll(new Translate(gloOrigin.getX(), gloOrigin.getY() - h1 / 2d, gloOrigin.getZ()), new Rotate(-Math.toDegrees(angle), 0d, h1 / 2d, 0d, new Point3D(dir.getX(), -dir.getY(), dir.getZ())));
    c.setMaterial(new PhongMaterial(Color.GREEN));
    group.getChildren().add(c);
    group.getChildren().add(new Axes(0.02));
    Box box = new Box(gloBounds.getWidth(), gloBounds.getHeight(), gloBounds.getDepth());
    // If transparency is enabled (8u60+), comment:
    box.setDrawMode(DrawMode.LINE);
    box.setCullFace(CullFace.NONE);
    // If transparency is enabled (8u60+), uncomment:
    // box.setMaterial(new PhongMaterial(Color.web("8A2BE2",0.3)));
    box.getTransforms().add(new Translate(gloBounds.getMinX() + gloBounds.getWidth() / 2d, gloBounds.getMinY() + gloBounds.getHeight() / 2d, gloBounds.getMinZ() + gloBounds.getDepth() / 2d));
    group.getChildren().add(box);
    /*
        FIRST STEP; Check the ray crosses the bounding box of the shape at any of
        its 6 faces
        */
    List<Point3D> normals = Arrays.asList(new Point3D(-1, 0, 0), new Point3D(1, 0, 0), new Point3D(0, -1, 0), new Point3D(0, 1, 0), new Point3D(0, 0, -1), new Point3D(0, 0, 1));
    List<Point3D> positions = Arrays.asList(new Point3D(locBounds.getMinX(), 0, 0), new Point3D(locBounds.getMaxX(), 0, 0), new Point3D(0, locBounds.getMinY(), 0), new Point3D(0, locBounds.getMaxY(), 0), new Point3D(0, 0, locBounds.getMinZ()), new Point3D(0, 0, locBounds.getMaxZ()));
    AtomicInteger counter = new AtomicInteger();
    IntStream.range(0, 6).forEach(i -> {
        // ray[t]= ori+t.dir; t/ray[t]=P in plane
        // plane P·N+d=0->(ori+t*dir)·N+d=0->t=-(ori.N+d)/(dir.N)
        // P=P(x,y,z), N={a,b,c}, d=-a·x0-b·y0-c·z0
        double d = -normals.get(i).dotProduct(positions.get(i));
        double t = -(gloOriginInLoc.dotProduct(normals.get(i)) + d) / (gloDirection.dotProduct(normals.get(i)));
        Point3D locInter = gloOriginInLoc.add(gloDirection.multiply(t));
        if (locBounds.contains(locInter)) {
            counter.getAndIncrement();
            Point3D gloInter = spring.localToScene(locInter);
            Sphere s2 = new Sphere(0.1d);
            s2.getTransforms().add(new Translate(gloInter.getX(), gloInter.getY(), gloInter.getZ()));
            s2.setMaterial(new PhongMaterial(Color.GOLD));
            group.getChildren().add(s2);
        }
    });
    if (counter.get() > 0) {
        /*
            SECOND STEP: Check if the ray crosses any of the triangles of the mesh
            */
        // triangle mesh
        org.fxyz.geometry.Point3D gloOriginInLoc1 = new org.fxyz.geometry.Point3D((float) gloOriginInLoc.getX(), (float) gloOriginInLoc.getY(), (float) gloOriginInLoc.getZ());
        org.fxyz.geometry.Point3D gloDirection1 = new org.fxyz.geometry.Point3D((float) gloDirection.getX(), (float) gloDirection.getY(), (float) gloDirection.getZ());
        System.out.println("inter: " + spring.getIntersections(gloOriginInLoc1, gloDirection1));
    }
    sceneRoot.getChildren().addAll(group);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    primaryStage.setTitle("F(X)yz - Ray Picker Between Nodes");
    primaryStage.setScene(scene);
    primaryStage.show();
}

Example 2 with KnotMesh

use of org.fxyz.shapes.primitives.KnotMesh in project FXyzLib by Birdasaur.

the class KnotTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.WHEAT);
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-30);
    cameraTransform.ry.setAngle(-45.0);
    cameraTransform.rx.setAngle(-10.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    cameraTransform.getChildren().add(new AmbientLight(Color.WHITE));
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    scene.setCamera(camera);
    rotateY = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
    Group group = new Group();
    group.getChildren().add(cameraTransform);
    knot = new KnotMesh(2d, 1d, 0.4d, 2d, 3d, 1000, 60, 0, 0);
    knot.setDrawMode(DrawMode.LINE);
    // knot.setCullFace(CullFace.NONE);
    knot.setSectionType(SectionType.TRIANGLE);
    // NONE
    // knot.setTextureModeNone(Color.BROWN);
    // IMAGE
    // knot.setTextureModeImage(getClass().getResource("res/LaminateSteel.jpg").toExternalForm());
    // PATTERN
    // knot.setTextureModePattern(3d);
    // FUNCTION
    // knot.setTextureModeVertices1D(1530,t->knot.getTau(t));
    knot.setTextureModeVertices1D(ColorPalette.GREEN, 8, t -> knot.getTau(t.doubleValue()));
    // DENSITY
    // knot.setTextureModeVertices3D(256*256,dens);
    // FACES
    // knot.setTextureModeFaces(256*256);
    knot.getTransforms().addAll(new Rotate(0, Rotate.X_AXIS), rotateY);
    group.getChildren().add(knot);
    sceneRoot.getChildren().addAll(group);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    lastEffect = System.nanoTime();
    AtomicInteger count = new AtomicInteger();
    AnimationTimer timerEffect = new AnimationTimer() {

        @Override
        public void handle(long now) {
            if (now > lastEffect + 100_000_000l) {
                // Point3D loc = knot.getPositionAt((count.get()%100)*2d*Math.PI/100d);
                // Point3D dir = knot.getTangentAt((count.get()%100)*2d*Math.PI/100d);
                // cameraTransform.t.setX(loc.x);
                // cameraTransform.t.setY(loc.y);
                // cameraTransform.t.setZ(-loc.z);
                // javafx.geometry.Point3D axis = cameraTransform.rx.getAxis();
                // javafx.geometry.Point3D cross = axis.crossProduct(-dir.x,-dir.y,-dir.z);
                // double angle = axis.angle(-dir.x,-dir.y,-dir.z);
                // cameraTransform.rx.setAngle(angle);
                // cameraTransform.rx.setAxis(new javafx.geometry.Point3D(cross.getX(),-cross.getY(),cross.getZ()));
                // dens = p->(float)(p.x*Math.cos(count.get()%100d*2d*Math.PI/50d)+p.y*Math.sin(count.get()%100d*2d*Math.PI/50d));
                // knot.setDensity(dens);
                // knot.setP(1+(count.get()%5));
                // knot.setQ(2+(count.get()%15));
                // if(count.get()%100<50){
                // knot.setDrawMode(DrawMode.LINE);
                // } else {
                // knot.setDrawMode(DrawMode.FILL);
                // }
                // knot.setColors((int)Math.pow(2,count.get()%16));
                // knot.setMajorRadius(0.5d+(count.get()%10));
                // knot.setMinorRadius(2d+(count.get()%60));
                // knot.setWireRadius(0.1d+(count.get()%6)/10d);
                // knot.setPatternScale(1d+(count.get()%10)*3d);
                knot.setSectionType(SectionType.values()[count.get() % SectionType.values().length]);
                count.getAndIncrement();
                lastEffect = now;
            }
        }
    };
    primaryStage.setTitle("F(X)yz - Knots");
    primaryStage.setScene(scene);
    primaryStage.show();
    OBJWriter writer = new OBJWriter((TriangleMesh) knot.getMesh(), "knot");
    writer.setMaterialColor(Color.BROWN);
    writer.exportMesh();
    timerEffect.start();
}