How to create a Polyline using JavaFX?

JavaObject Oriented ProgrammingProgramming

A Polyline is an open figure formed using n number of lines existing in the same plane. i.e. a polyline is the same as a polygon except it is not closed. In JavaFX a polyline is represented by the javafx.scene.shape.PolyLine class.

To create a polygon you need to −

  • Instantiate this class.

  • Pass the start and endpoints, of the line segments to draw a polygon to the class either by passing them as arguments to the constructor or, using the getPoints() method as −

polygon.getPoints().addAll(new Double[]{ List of XY coordinates separated by commas });
  • Add the created node (shape) to the Group object.

Example

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.Polyline;
public class DrawingPolyLine extends Application {
   public void start(Stage stage) {
      //Drawing a polygon
      Polyline poliline = new Polyline();
      //Setting the properties of the ellipse
      poliline.getPoints().addAll(new Double[]{
         150.0, 200.0, 410.0, 200.0, 250.0, 50.0, 250.0, 230.0 });
      //Setting other properties
      poliline.setStrokeWidth(8.0);
      poliline.setStroke(Color.DARKSLATEGREY);
      //Setting the Scene
      Group root = new Group(poliline);
      Scene scene = new Scene(root, 595, 300, Color.BEIGE);
      stage.setTitle("Drawing Polyline");
      stage.setScene(scene);
      stage.show();
   }
   public static void main(String args[]){
      launch(args);
   }
}

Output

raja
Published on 14-Apr-2020 08:01:22
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