@Override
public void start(Stage stage) {
Group spheroidGroup = new Group();
for (int i = 0; i < 50; i++) {
Random r = new Random();
// A lot of magic numbers in here that just artificially constrain the math
float randomMajorRadius = (float) ((r.nextFloat() * 300) + 50);
float randomMinorRadius = (float) ((r.nextFloat() * 300) + 50);
int randomDivisions = (int) ((r.nextFloat() * 64) + 1);
Color randomColor = new Color(r.nextDouble(), r.nextDouble(), r.nextDouble(), r.nextDouble());
Spheroid sm =
new Spheroid(randomDivisions, randomMajorRadius, randomMinorRadius, randomColor);
sm.setDrawMode(DrawMode.LINE);
double translationX = Math.random() * 1024 * 1.95;
if (Math.random() >= 0.5) {
translationX *= -1;
}
double translationY = Math.random() * 1024 * 1.95;
if (Math.random() >= 0.5) {
translationY *= -1;
}
double translationZ = Math.random() * 1024 * 1.95;
if (Math.random() >= 0.5) {
translationZ *= -1;
}
Translate translate = new Translate(translationX, translationY, translationZ);
Rotate rotateX = new Rotate(Math.random() * 360, Rotate.X_AXIS);
Rotate rotateY = new Rotate(Math.random() * 360, Rotate.Y_AXIS);
Rotate rotateZ = new Rotate(Math.random() * 360, Rotate.Z_AXIS);
sm.getTransforms().addAll(translate, rotateX, rotateY, rotateZ);
spheroidGroup.getChildren().add(sm);
}
root.getChildren().add(spheroidGroup);
System.out.println(spheroidGroup.getChildren().size());
camera = new PerspectiveCamera(true);
cameraTransform.setTranslate(0, 0, 0);
cameraTransform.getChildren().addAll(camera);
camera.setNearClip(0.1);
camera.setFarClip(10000.0);
camera.setFieldOfView(42);
camera.setTranslateZ(cameraDistance);
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);
light.setTranslateX(camera.getTranslateX());
light.setTranslateY(camera.getTranslateY());
light.setTranslateZ(camera.getTranslateZ());
root.getChildren().add(cameraTransform);
Scene scene = new Scene(new StackPane(root), 1024, 668, true, SceneAntialiasing.BALANCED);
scene.setCamera(camera);
scene.setFill(Color.BLACK);
initFirstPersonControls(scene);
stage.setTitle("Hello World!");
stage.setScene(scene);
stage.show();
}
@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.BLACK);
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.setTranslateX(0);
camera.setTranslateZ(-1000);
cameraTransform.ry.setAngle(-25.0);
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(new AmbientLight());
light.setTranslateX(camera.getTranslateX());
light.setTranslateY(camera.getTranslateY());
light.setTranslateZ(camera.getTranslateZ());
scene.setCamera(camera);
long time = System.currentTimeMillis();
Group group = new Group(cameraTransform);
List<Point3D> data = new ArrayList<>();
// // create some data
// IntStream.range(0,100000)
// .forEach(i->data.add(new Point3D((float)(30*Math.sin(50*i)),
// (float)(Math.sin(i)*(100+30*Math.cos(100*i))),
// (float)(Math.cos(i)*(100+30*Math.cos(200*i))),
// i))); // <-- f
// // and write to csv file
// Path out = Paths.get("output.txt");
//
// Files.write(out,data.stream().map(p3d->p3d.toCSV()).collect(Collectors.toList()),Charset.defaultCharset());
// read from csv file
Path out = getCSVFile(0);
if (out != null) {
Files.lines(out)
.map(s -> s.split(";"))
.forEach(
s ->
data.add(
new Point3D(
Float.parseFloat(s[0]),
Float.parseFloat(s[1]),
Float.parseFloat(s[2]),
Float.parseFloat(s[3]))));
}
ScatterMesh scatter = new ScatterMesh(data, true, 1, 0);
// DENSITY
// texture is given by p.f value, don't change this!
scatter.setTextureModeVertices3D(1530, p -> p.f);
group.getChildren().add(scatter);
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 - ScatterMesh Test");
primaryStage.setScene(scene);
primaryStage.show();
final boolean constantVertices = true;
lastEffect = System.nanoTime();
AtomicInteger count = new AtomicInteger(0);
List<List<Number>> fullData = new ArrayList<>();
if (constantVertices) {
// if possible we can cache all the data
Stream.of(0, 1, 2, 3, 4, 3, 2, 1)
.forEach(
i -> {
Path out2 = getCSVFile(i);
if (out2 != null) {
try {
List<Number> data2 = new ArrayList<>();
Files.lines(out2)
.map(s -> s.split(";"))
.forEach(
s -> {
float f = Float.parseFloat(s[3]);
// 4 vertices tetrahedra
data2.add(f);
data2.add(f);
data2.add(f);
data2.add(f);
});
fullData.add(data2);
} catch (IOException ex) {
}
}
});
}
AnimationTimer timerEffect =
new AnimationTimer() {
@Override
public void handle(long now) {
if (now > lastEffect + 50_000_000l) {
try {
// long t=System.currentTimeMillis();
if (constantVertices && fullData != null) {
// Vertices coordinates are always the same: mesh is tha same, we only
// need to update F on each element
scatter.setFunctionData(fullData.get(count.get() % 8));
// System.out.println("t
// "+(System.currentTimeMillis()-t));
} else {
// vertices coordinates may change in time, we need to create them all over again
// reading the files:
Path out2 =
getCSVFile(
(int) (Stream.of(0, 1, 2, 3, 4, 3, 2, 1).toArray()[count.get() % 8]));
if (out2 != null) {
List<Point3D> data2 = new ArrayList<>();
Files.lines(out2)
.map(s -> s.split(";"))
.forEach(
s ->
data2.add(
new Point3D(
Float.parseFloat(s[0]),
Float.parseFloat(s[1]),
Float.parseFloat(s[2]),
Float.parseFloat(s[3]))));
scatter.setScatterData(data2);
scatter.setTextureModeVertices1D(1530, p -> p);
}
// System.out.println("t
// "+(System.currentTimeMillis()-t));
}
} catch (IOException ex) {
}
count.getAndIncrement();
lastEffect = now;
}
}
};
timerEffect.start();
}