Question

所以我有一个阶段，我正在渲染一些imageview数组，问题是root.getChildren（）。remove（i）;并不总是从组中删除正确的项目。

一个解决方案是在场景中拥有多个群组，但互联网对此非常安静，所以我甚至不知道是否可以这样做。

另一种解决方案是在舞台上拥有多个场景，并使除最底层之外的所有场景都透明。我发现的唯一信息是让整个舞台变得透明，在这种情况下根本没有帮助我。

或者我在想错误的方向？

我如何将克隆对象添加到组中的示例（此代码围绕每个帧运行）：

final ImageView ext = new ImageView();
ext.setTranslateX(move2.x);
ext.setTranslateY(move2.y);
ext.getTransforms().add(new Rotate(GPU.rotat,45, -70));
ext.setImage(thrustereffect);
root.getChildren().add(ext);

Answer 1

import javafx.animation.ParallelTransition;
import javafx.animation.PathTransition;
import javafx.animation.PathTransition.OrientationType;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.CubicCurveTo;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
import javafx.stage.Stage;
import javafx.util.Duration;

  public class Mains extends Application{

  @Override
  public void start(Stage stage) throws Exception
  {
  final Group rootGroup = new Group();
  final Group subGroup1= new Group();

  rootGroup.getChildren().add( subGroup1 );

  final Scene scene = new Scene(rootGroup, 350, 550, Color.GHOSTWHITE);
  stage.setScene(scene);
  stage.setTitle("Animations");
  stage.show();

  final Path pathOn_rootGroup = new Path();
  final Path pathOn_subGroup1 = new Path();

  pathOn_rootGroup.getElements().add(new MoveTo( 0, 20 ) );
  pathOn_rootGroup.getElements().add(
         new CubicCurveTo( 30, 120, 30, 220, 520, 120) );

  pathOn_subGroup1.getElements().add(new MoveTo( 50, 50 ) );
  pathOn_subGroup1.getElements().add(
         new CubicCurveTo( 350, 20, 250, 240, 320, 240 ) );

  pathOn_rootGroup.setOpacity( 0.5 );
  pathOn_subGroup1.setOpacity( 0.5 );

  rootGroup.getChildren().add( pathOn_rootGroup );
  subGroup1.getChildren().add( pathOn_subGroup1 );

  final javafx.scene.shape.Circle rootGroup_shape = 
          new javafx.scene.shape.Circle();
  rootGroup_shape.setCenterX(50);
  rootGroup_shape.setCenterY(50);
  rootGroup_shape.setRadius(12.5);
  rootGroup_shape.setFill( Color.AQUA );

  final javafx.scene.shape.Rectangle subGroup1_shape = 
          new javafx.scene.shape.Rectangle();
  subGroup1_shape.setX(20);
  subGroup1_shape.setY(20);
  subGroup1_shape.setWidth(20);
  subGroup1_shape.setHeight(30);
  subGroup1_shape.setFill( Color.BLUEVIOLET );

  rootGroup.getChildren().add( rootGroup_shape );
  subGroup1.getChildren().add( subGroup1_shape );

  final PathTransition pathTransition_rootGroup = new PathTransition();
  pathTransition_rootGroup.setDuration(Duration.seconds(8.0));
  pathTransition_rootGroup.setDelay(Duration.seconds(.5));
  pathTransition_rootGroup.setPath(pathOn_rootGroup);
  pathTransition_rootGroup.setNode(rootGroup_shape);
  pathTransition_rootGroup.setOrientation(OrientationType.NONE);
  pathTransition_rootGroup.setCycleCount(Timeline.INDEFINITE);
  pathTransition_rootGroup.setAutoReverse(true); 

  final PathTransition pathTransition_subGroup1 = new PathTransition();
  pathTransition_subGroup1.setDuration(Duration.seconds(8.0));
  pathTransition_subGroup1.setDelay(Duration.seconds(1.0));
  pathTransition_subGroup1.setPath(pathOn_subGroup1);
  pathTransition_subGroup1.setNode(subGroup1_shape);
  pathTransition_subGroup1.setOrientation(OrientationType.NONE);
  pathTransition_subGroup1.setCycleCount(Timeline.INDEFINITE);
  pathTransition_subGroup1.setAutoReverse(true);

  final ParallelTransition parallelTransition =
     new ParallelTransition(pathTransition_rootGroup, pathTransition_subGroup1 );
  parallelTransition.play(); 
 }// end start()

public static void main(final String[] arguments)
{
  Application.launch(arguments);
}// end main method
}// end class Main

JavaFX每个场景多个组/透明场景（不是舞台）

1 个答案: