JavaFX_homework2_LineUsingBlind

效果图

代码如下：

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.shape.Line;
import javafx.stage.Stage;


public class lineTry extends Application{
     // main was removed from slide due to space
    
     public static void main(String[] args) {
        lineTry.launch(args);
      } 

    public void start(Stage stage) throws Exception {
            stage.setTitle("Binding Example");
            AnchorPane root = new AnchorPane();
            Scene scene = new Scene(root, 250, 250);
            
            System.out.println("Height: " +  scene.heightProperty().getValue() );
            System.out.println("Width:  " +  scene.widthProperty().getValue() );
            
            for(int i = 0; i < 15; i++)
            {
                Line line1 = new Line(0, 0, 250, 250);
                //line1.startXProperty().bind( scene.widthProperty());
                line1.startYProperty().bind( scene.heightProperty().divide(15.0/(i+1)));
                line1.endXProperty().bind( scene.widthProperty().divide(15.0/(i+1)));
                line1.endYProperty().bind( scene.heightProperty());
                
                Line line2 = new Line(0, 0, 250, 250);
                line2.startXProperty().bind( scene.widthProperty().divide(15.0/(i+1)));
                //line2.startYProperty().bind( scene.heightProperty());
                line2.endXProperty().bind( scene.widthProperty());
                line2.endYProperty().bind( scene.heightProperty().divide(15.0/(i+1)));
                
                
                Line line3 = new Line(0, 250, 250, 0);
                //line3.startXProperty().bind( scene.widthProperty().divide(15.0/(i+1)) );
                line3.startYProperty().bind( scene.heightProperty().divide(15.0/(14-i)) );
                line3.endXProperty().bind( scene.widthProperty().divide(15.0/(i+1)) );
                //line3.endYProperty().bind( scene.heightProperty());
                
                
                
                Line line4 = new Line(250, 0, 0,250);
                line4.startXProperty().bind( scene.widthProperty());
                line4.startYProperty().bind( scene.heightProperty().divide(15.0/(i+1)) );
                line4.endXProperty().bind( scene.widthProperty().divide(15.0/(14-i)) );
                line4.endYProperty().bind( scene.heightProperty() );
                
                
                root.getChildren().addAll(line1,line2,line3,line4);
            }
            
            

            
            stage.setScene(scene);
            stage.show();
        }
}