Question

如何将3D表面添加到view.fxml，没有＆＃34;事情＆＃34;在Scene Builder面板上，如surface。我的场景构建器层次结构如下所示：

应用程序的ss - 就像我们可以看到左上角有一些东西，表面应该在中间。

我想首先添加一些3D表面样本：我的控制器代码：

    package sample.packet3D;

import org.fxyz.cameras.CameraTransformer;

import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.fxml.FXML;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.PointLight;
import javafx.scene.layout.AnchorPane;


public class Window3DController {

    @FXML
    private AnchorPane anchorPane;
    @FXML
    private Group group;

    private Window3DBuilder window3dBuilder;
    private PerspectiveCamera perspectiveCamera;



    @FXML
    public void initialize() {
        perspectiveCamera = new PerspectiveCamera(true);

        window3dBuilder = new Window3DBuilder( group, perspectiveCamera );
        window3dBuilder.createScene();



        group.sceneProperty().addListener(new InvalidationListener() {

            @Override
            public void invalidated(Observable observable) {
                group.getScene().setCamera(perspectiveCamera);
                group.sceneProperty().removeListener(this);
            }
        });
    }
}

逻辑课程：

   package sample.packet3D;


import org.fxyz.cameras.CameraTransformer;
import org.fxyz.shapes.primitives.SurfacePlotMesh;

import javafx.geometry.Point3D;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.PointLight;
import javafx.scene.SceneAntialiasing;
import javafx.scene.SubScene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.CullFace;
import javafx.scene.shape.TriangleMesh;
import javafx.scene.transform.Rotate;

public class Window3DBuilder {

    private Group group;
    private SurfacePlotMesh surface;
    private PerspectiveCamera perspectiveCamera;
    private CameraTransformer cameraTransformer;
    private PointLight light;

    public Window3DBuilder( Group group, PerspectiveCamera perspectiveCamera ) {
        this.group = group;
        this.perspectiveCamera = perspectiveCamera;
        cameraTransformer = new CameraTransformer();
    }

    public void createScene() {

        createSurface();
        createLight(); 
        group.getChildren().addAll(surface);

        cameraTransformer.setTranslate(0, 0, 0);
        cameraTransformer.getChildren().addAll(perspectiveCamera);

        perspectiveCamera.setNearClip(0.1);
        perspectiveCamera.setFarClip(100000.0);
        perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
        perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
        double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
        perspectiveCamera.setTranslateZ(-2 * max);

    }

    public void createLight() {
        light = new PointLight(Color.WHITE);
        cameraTransformer.getChildren().add(light);
        light.setTranslateX(perspectiveCamera.getTranslateX());
        light.setTranslateY(perspectiveCamera.getTranslateY());
        light.setTranslateZ(perspectiveCamera.getTranslateZ());
    }

    private void createSurface() {
        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));
    }



}

并查看：

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.effect.*?>
<?import javafx.scene.canvas.*?>
<?import javafx.scene.*?>
<?import javafx.scene.shape.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.packet3D.Window3DController">
   <children>
      <Group fx:id="group">
         <effect>
            <Lighting>
               <bumpInput>
                  <Shadow />
               </bumpInput>
               <light>
                  <Light.Distant />
               </light>
            </Lighting>
         </effect>
      </Group>
      <PerspectiveCamera fx:id="perspectiveCamera" visible="false" />
   </children>
</AnchorPane>

我做错了什么？有人能帮助我吗？这也是一个窗口，我按下按钮进入该窗口。

@FXML
    public void moveTo3DScene(ActionEvent event) throws IOException {
        Stage stage3D = (Stage) ((Node) event.getSource()).getScene().getWindow();
        Parent parent3D = FXMLLoader.load(getClass().getResource("packet3D/Window3DSceneView.fxml"));
        stage3D.setTitle("Animation 3D");
        stage3D.setScene(new Scene(parent3D, 1200, 800));
        stage3D.show();

    }

Answer 1

PerspectiveCamera出现问题。它有一个名为fixedEyeAtCameraZero的布尔参数，默认情况下为false，并且场景的左上角会显示一个非常小的曲面。

我们需要将其设置为true，所以：

如果fixedEyeAtCameraZero为true，则眼睛位置固定在摄像机的本地坐标中的（0,0,0）

但遗憾的是你无法设置参数，没有setFixedEyeAtCameraZero()方法。改变它的唯一方法是使用相机构造器。

这意味着您必须从FXML文件中删除PerspectiveCamera，并通过控制器上的代码添加

public class Window3DController {

    @FXML
    private AnchorPane anchorPane;
    @FXML
    private Group group;

    private Window3DBuilder window3dBuilder;
    private PerspectiveCamera perspectiveCamera;

    @FXML
    public void initialize() {
        perspectiveCamera = new PerspectiveCamera(true);

        window3dBuilder = new Window3DBuilder(group, perspectiveCamera);
        window3dBuilder.createScene();

        group.sceneProperty().addListener(new InvalidationListener() {
            @Override
            public void invalidated(Observable observable) {
                group.getScene().setCamera(perspectiveCamera);
                group.sceneProperty().removeListener(this);
            }
        });
    } 

}

最后一步：您需要为摄像机设置一些参数，基本上是基于网格大小的z坐标：

public void createScene() {
    createSurface();
    group.getChildren().addAll(surface);

    perspectiveCamera.setNearClip(0.1);
    perspectiveCamera.setFarClip(100000.0);
    perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
    perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
    double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
    perspectiveCamera.setTranslateZ(-2 * max);
}

这将显示您的表面，但不会如您所期望的那样：您应用的效果适用于2D：

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.Group?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Window3DController">
   <children>
      <Group fx:id="group" />
   </children>
</AnchorPane>

删除这些效果，然后使用PointLight代码添加它们：

public class Window3DBuilder {

    private final Group group;
    private SurfacePlotMesh surface;
    private final CameraTransformer cameraTransformer;
    private final PerspectiveCamera perspectiveCamera;
    private PointLight light;

    public Window3DBuilder( Group group, PerspectiveCamera perspectiveCamera ) {
        this.group = group;
        this.perspectiveCamera = perspectiveCamera;
        cameraTransformer = new CameraTransformer();
    }

    public void createScene() {
        createSurface();
        group.getChildren().addAll(surface, cameraTransformer);

        cameraTransformer.setTranslate(0, 0, 0);
        cameraTransformer.getChildren().addAll(perspectiveCamera);

        perspectiveCamera.setNearClip(0.1);
        perspectiveCamera.setFarClip(100000.0);
        perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
        perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
        double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
        perspectiveCamera.setTranslateZ(-2 * max);
        createLight();
    }

    public void createLight() {
        light = new PointLight(Color.WHITE);
        cameraTransformer.getChildren().add(light);
        light.setTranslateX(perspectiveCamera.getTranslateX());
        light.setTranslateY(perspectiveCamera.getTranslateY());
        light.setTranslateZ(perspectiveCamera.getTranslateZ() / 10);
    }

    private void createSurface() {
        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));
    }

}

Answer 2

我想将相机保存在.fxml文件中。我创建了一个基于PerspectiveCamera的自定义控件。

从一个非常简单的课程开始...

import javafx.scene.PerspectiveCamera;


public class PerspectiveCamera3D extends PerspectiveCamera {

// force 3D
public PerspectiveCamera3D() {
    super(true);
}

// toss the parameter, force 3D
public PerspectiveCamera3D(final boolean fixedEyeAtCameraZero) {
    this();
}
}

导出到.jar文件。启动Scene Builder并打开.fxml文件，以获取相机所在的位置。

打开Library标题上的'gear'菜单。然后导入FXML / Jar。导入新创建的.jar文件。将弹出一个对话框，其中列出了您的控件。确认后，控件将出现在自定义菜单中。您的控件现在可以使用，就像任何其他控件一样。

“固定眼睛......”复选框仍然是只读的，但将进行检查。可以根据需要设置所有其他属性。要设置fx：id，只需将以下内容添加到控制器代码中......

@FXML
public PerspectiveCamera3D cambot;

以下是一个示例...... https://rterp.wordpress.com/2014/07/28/adding-custom-javafx-component-to-scene-builder-2-0-part-2/

的更详细信息

我用这种方式做的唯一问题是，通过单击Eclipse中的.fxml文件启动Scene Builder会导致异常（我相信这是我计算机上的本地问题，因为我的方式发布事物及其工作目录）。如果我打开Scene Builder，然后从Scene Builder文件菜单中打开.fxml文件，它就可以正常工作。

如何将3D曲面添加到AnchorPane

2 个答案: