例子
以下是在 JavaFX 中演示剪切的程序。在这里,我们在同一位置创建 2 个多边形(节点),具有相同的尺寸,但具有不同的颜色(蓝色和透明)。我们还在透明多边形上应用剪切。
将此代码保存在名称为的文件中 ShearingExample.java.
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
import javafx.scene.transform.Shear;
import javafx.stage.Stage;
public class ShearingExample extends Application {
@Override
public void start(Stage stage) {
Polygon hexagon1 = new Polygon();
//Adding coordinates to the hexagon
hexagon1.getPoints().addAll(new Double[]{
200.0, 50.0,
400.0, 50.0,
450.0, 150.0,
400.0, 250.0,
200.0, 250.0,
150.0, 150.0,
});
//Setting the fill color for the hexagon
hexagon1.setFill(Color.BLUE);
hexagon1.setStroke(Color.BLACK);
Polygon hexagon2 = new Polygon();
//Adding coordinates to the hexagon
hexagon2.getPoints().addAll(new Double[]{
200.0, 50.0,
400.0, 50.0,
450.0, 150.0,
400.0, 250.0,
200.0, 250.0,
150.0, 150.0,
});
//Setting the fill color for the hexagon
hexagon2.setFill(Color.TRANSPARENT);
hexagon2.setStroke(Color.BLACK);
//Creating shear transformation
Shear shear = new Shear();
//Setting the pivot points
shear.setPivotX(200);
shear.setPivotY(250);
//Setting the dimensions for the shear
shear.setX(0.5);
shear.setY(0.0);
//Adding the transformation to the polygon
hexagon2.getTransforms().addAll(shear);
//Creating a Group object
Group root = new Group(hexagon1, hexagon2);
//Creating a scene object
Scene scene = new Scene(root, 600, 300);
//Setting title to the Stage
stage.setTitle("Shearing Example ");
//Adding scene to the stage
stage.setScene(scene);
//Displaying the contents of the stage
stage.show();
}
public static void main(String args[]){
launch(args);
}
}
使用以下命令从命令提示符编译并执行保存的 java 文件。
javac ShearingExample.java
java ShearingExample
执行时,上述程序会生成一个 JavaFX 窗口,如下所示。