【发布时间】:2021-07-15 17:29:20
【问题描述】:
我有一个 AnchorPane,其中包含一个剪裁圆。我为锚窗格设置了最大高度,这样如果圆圈的 y 位置很高,则不会显示圆圈。问题是当圆圈到达锚板的下部时,它会增加它的高度。这不应该发生。
这甚至发生在被剪裁的元素到达锚窗格的下部之前。一旦圆的“不可见”部分到达下部,它就开始增加它的高度。
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.RadialGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class Init extends Application {
private AnchorPane canvasContainer;
private AnchorPane mainPane;
@Override
public void start(Stage stage) throws Exception {
canvasContainer = new AnchorPane();
mainPane = new AnchorPane();
Scene scene = new Scene(mainPane, 800, 700);
stage.setScene(scene);
canvasContainer.setPrefWidth(600.0d);
canvasContainer.setPrefHeight(500.0d);
//IGNORED
canvasContainer.setMaxHeight(canvasContainer.getPrefHeight());
canvasContainer.setLayoutX(14.0d);
canvasContainer.setLayoutY(14.0d);
canvasContainer.setStyle("-fx-border-color: black; -fx-border-width: 1 1 1 1;");
RadialGradient gradient = new RadialGradient(0, 0, 0.5, 0.5, 1, true, CycleMethod.NO_CYCLE, new Stop[] {
new Stop(0, Color.ORANGE),
new Stop(0.2, Color.YELLOW),
new Stop(0.5, Color.TRANSPARENT)
});
//I AM MODIFYING THIS VALUE
int y = 500;
Circle circleGradient = new Circle(200, y, 50);
circleGradient.setFill(gradient);
Rectangle rect = new Rectangle(200 - 50, y - 50, 1000, 50/2);
circleGradient.setClip(rect);
canvasContainer.getChildren().addAll(circleGradient);
mainPane.getChildren().add(canvasContainer);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
【问题讨论】:
-
@kleopatra 你去吧