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How to create a circle using JavaFX?
A circle is a line forming a closed loop, every point on which is a fixed distance from a center point. A circle is defined by its center and radius − distance from the center to any point on the circle.
In JavaFX a circle is represented by the javafx.scene.shape.Circle class. This class contains three properties they are −
centerX − This property represents the x coordinate of the center of a circle, you can set the value to this property using the setCenterX() method.
centerY − This property represents y coordinate of the center of a circle, you can set the value to this property using the setCenterY() method.
radius − The radius of the circle in pixels, you can set the value to this property using the setRadius() method.
To create a circle you need to −
Instantiate the class Circle.
Set the required properties using the setter methods or, bypassing them as arguments to the constructor.
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.Circle;
public class DrawingCircle extends Application {
public void start(Stage stage) {
//Drawing a Circle
Circle circle = new Circle();
//Setting the properties of the circle
circle.setCenterX(300.0f);
circle.setCenterY(135.0f);
circle.setRadius(100.0f);
//Setting other properties
circle.setFill(Color.DARKCYAN);
circle.setStrokeWidth(8.0);
circle.setStroke(Color.DARKSLATEGREY);
//Setting the Scene
Group root = new Group(circle);
Scene scene = new Scene(root, 595, 300, Color.BEIGE);
stage.setTitle("Drawing a Circle");
stage.setScene(scene);
stage.show();
}
public static void main(String args[]){
launch(args);
}
}Output
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