3D表面JavaFX [英] 3D surface JavaFX
问题描述
我正在尝试在JavaFX中实现自己的3D表面动画,但是我不了解它应该起作用的一切,有人可以帮助我理解应该将其放到哪里吗?
I am trying to implement my own 3D surface animation in JavaFX but i do not understand everything like it should works, could someone help me with understanding which should go where ?
-
已经知道使用类构建网格需要类对象
TraingleMesh
,然后必须使用方法mesh.getPoints.addAll(...);
添加点,但是..使用apply
方法后的Function<Double, Double>
对我没有帮助根本,因为第一个参数必须是数组浮点类型,而不是应用一些数据后的double
变量.
Already know that to build Mesh by using class need class object
TraingleMesh
and then have to add points by using methodmesh.getPoints.addAll(...);
but.. myFunction<Double, Double>
after usingapply
method does not help me at all, cuz the first argument has to be array float type, notdouble
variable after applying some data.
- 我该如何解决这个问题?
我在这里找到了@Roland创建的一些纹理和面的实现:
I found some implementations of texture and faces created by @Roland here :
- 纹理和面孔如何工作?
这对我来说真的很重要,谢谢您的帮助!
It's really important for me, thanks for help!
推荐答案
看看FXyz 图书馆一个>.它是开源的,您可以从代码中学习.
Have a look at the FXyz library. It is open source, and you can learn from the code.
对于纹理,请查看以下帖子.
For textures, have a look at this post.
FXyz具有一个SurfacePlotMesh
类,该类可以完全满足您的需要:使用Function<Point2D, Number> function
参数基于函数g = f(x,y)
绘制3D曲面.
FXyz has a SurfacePlotMesh
class that does exactly what you want: plot a 3D surface based on a function g = f(x,y)
, by using a Function<Point2D, Number> function
parameter.
它还包括纹理,因此您可以根据Function<Point3D, Number> density
包括密度贴图.每个值都映射到一种颜色.
It also includes texturing, so you can include a density map in terms of Function<Point3D, Number> density
. Each value is mapped to a color.
检查此测试Function2DPlotTest
此处.
使用此代码段,您可以绘制函数:
With this code snippet you can plot a function:
@Override
public void start(Stage primaryStage) {
PerspectiveCamera camera = new PerspectiveCamera(true);
camera.setTranslateZ(-30);
SurfacePlotMesh surface = new SurfacePlotMesh(
p-> Math.sin(p.magnitude() + 1e-10) / (p.magnitude() + 1e-10),
20, 20, 100, 100, 4);
surface.setCullFace(CullFace.NONE);
surface.setTextureModeVertices3D(1530, p -> p.magnitude());
surface.getTransforms().addAll(new Rotate(200, Rotate.X_AXIS), new Rotate(-20, Rotate.Y_AXIS));
final Group group = new Group(surface);
Scene scene = new Scene(group, 600, 400, true, SceneAntialiasing.BALANCED);
scene.setCamera(camera);
primaryStage.setScene(scene);
primaryStage.show();
}
如果您添加密度图:
surface.setTextureModeVertices3D(1530, p -> p.magnitude());
您会得到的:
现在,如果要制作表面动画,则只需创建一个:
Now if you want an animation of the surface, you just need to create one:
private SurfacePlotMesh surface;
private long lastEffect;
@Override
public void start(Stage primaryStage) {
PerspectiveCamera camera = new PerspectiveCamera(true);
camera.setTranslateZ(-30);
surface = new SurfacePlotMesh(
p-> Math.sin(p.magnitude() + 1e-10) / (p.magnitude() + 1e-10),
20, 20, 100, 100, 4);
surface.setCullFace(CullFace.NONE);
surface.setTextureModeVertices3D(1530, p -> p.magnitude());
surface.getTransforms().addAll(new Rotate(200, Rotate.X_AXIS), new Rotate(-20, Rotate.Y_AXIS));
final Group group = new Group(surface);
Scene scene = new Scene(group, 600, 400, true, SceneAntialiasing.BALANCED);
scene.setCamera(camera);
primaryStage.setScene(scene);
primaryStage.show();
lastEffect = System.nanoTime();
AtomicInteger count=new AtomicInteger();
AnimationTimer timerEffect = new AnimationTimer() {
@Override
public void handle(long now) {
if (now > lastEffect + 1_000_000_000l) {
double t = (count.get() % 5 + 1);
surface.setFunction2D(p -> Math.sin(t * p.magnitude() + 1e-10)/(t * p.magnitude() + 1e-10));
count.getAndIncrement();
lastEffect = now;
}
}
};
timerEffect.start();
}
然后您将获得表面动画:
And you'll get your surface animation:
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