在 JavaFX 中解释二维形状的相交操作
此操作接收两个或更多形状作为输入,并返回它们之间的相交区域,如下所示。
javafx.scene.shape.Shape 类中的 intersect()(静态)方法接收两个 Shape 对象,并返回指定对象相交操作的结果。
示例
import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.stage.Stage; import javafx.scene.shape.Circle; import javafx.scene.shape.Shape; public class JavaFXIntersectExample extends Application { public void start(Stage stage) { //Drawing circle1 Circle circle1 = new Circle(); circle1.setCenterX(230.0f); circle1.setCenterY(100.0f); circle1.setRadius(75.0f); circle1.setFill(Color.DARKRED); //Drawing Circle2 Circle circle2 = new Circle(); circle2.setCenterX(280.0f); circle2.setCenterY(170.0f); circle2.setRadius(75.0f); circle2.setFill(Color.DARKRED); //Drawing Circle3 Circle circle3 = new Circle(); circle3.setCenterX(330.0f); circle3.setCenterY(100.0f); circle3.setRadius(75.0f); circle3.setFill(Color.DARKRED); //Intersect Operation Shape intersect = Shape.intersect(circle1, circle2); intersect = Shape.intersect(intersect, circle3); intersect.setFill(Color.RED); //Setting the stage Group root = new Group(circle1, circle2, circle3, intersect); Scene scene = new Scene(root, 595, 300); stage.setTitle("Intersect Operation"); stage.setScene(scene); stage.show(); } public static void main(String args[]){ launch(args); } }
输出
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