How to create a view like this in Java-fx? - javafx

Question

I'm having some problems with this view. What I need to do it in JavaFX to add this 'border' and divide the circle into 2 parts.
public void start(Stage primaryStage){
Circle mycircle = new Circle(200,200,200);
mycircle.setFill(Color.GREEN);
BorderPane root = new BorderPane();
root.setCenter(mycircle);
}
I don't have errors but it's not the view what I am looking for. So can anyone help me with this, please
And btw sorry for bad image quality

Answer 1

Would this satisfy your needs?
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class HalfCircleDemo extends Application {
#Override
public void start(final Stage stage) {
BorderPane root = new BorderPane();
Group circleGroup = new Group();
Circle greenCircle = new Circle(200,200,200);
greenCircle.setFill(Color.GREEN);
Circle blueCircle = new Circle(200,200,200);
blueCircle.setFill(Color.BLUE);
Rectangle clip = new Rectangle(400, 200);
greenCircle.setClip(clip);
circleGroup.getChildren().setAll(blueCircle, greenCircle);
root.setCenter(circleGroup);
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}

Answer 2

You could use Paths with ArcTo elements:
private static Group createHalfCircles(double radius) {
Path upperHalf = new Path(
new MoveTo(0, radius),
new ArcTo(radius, radius, 0, 2*radius, radius, true, false),
new ClosePath());
upperHalf.setFill(Color.PURPLE);
upperHalf.setStroke(null);
Path lowerHalf = new Path(
new MoveTo(2 * radius, radius),
new ArcTo(radius, radius, 0, 0, radius, true, false),
new ClosePath());
lowerHalf.setFill(Color.GREEN);
lowerHalf.setStroke(null);
return new Group(upperHalf, lowerHalf);
}
#Override
public void start(Stage primaryStage) throws Exception {
Scene scene = new Scene(createHalfCircles(50));
primaryStage.setScene(scene);
primaryStage.show();
}