How to create Geometric shapes in JavaFX 2.0?
16,561
Solution 1
Check out the API Docs: javafx.scene.shape.Shape.
Sample usage: Draw Rectangle. Circle and Line examples also exist there.
Solution 2
public class MyCanvas extends Application {
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle(MyCanvas.class.getSimpleName());
Group root = new Group();
final Canvas canvas = new Canvas(300, 250);
GraphicsContext gc = canvas.getGraphicsContext2D();
drawShapes(gc);
final Text text = new Text("X = Y = ");
text.setTranslateX(100);
text.setTranslateY(40);
text.setFont(new Font(20));
canvas.setOnMouseMoved(new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent t) {
text.setText("X = " + t.getX() + " Y = " + t.getY());
}
});
root.getChildren().addAll(canvas, text);
primaryStage.setScene(new Scene(root));
primaryStage.getScene().setFill(Color.AQUA);
primaryStage.show();
}
/**
* The main() method is ignored in correctly deployed JavaFX application.
* main() serves only as fallback in case the application can not be
* launched through deployment artifacts, e.g., in IDEs with limited FX
* support. NetBeans ignores main().
*
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
private void drawShapes(GraphicsContext gc) {
gc.setFill(Color.WHITESMOKE);
gc.fillRect(gc.getCanvas().getLayoutX(),
gc.getCanvas().getLayoutY(),
gc.getCanvas().getWidth(),
gc.getCanvas().getHeight());
gc.setFill(Color.GREEN);
gc.setStroke(Color.BLUE);
gc.setLineWidth(5);
gc.strokeLine(40, 10, 10, 40);
gc.fillOval(10, 60, 30, 30);
gc.strokeOval(60, 60, 30, 30);
gc.fillRoundRect(110, 60, 30, 30, 10, 10);
gc.strokeRoundRect(160, 60, 30, 30, 10, 10);
gc.fillArc(10, 110, 30, 30, 45, 240, ArcType.OPEN);
gc.fillArc(60, 110, 30, 30, 45, 240, ArcType.CHORD);
gc.strokeArc(10, 160, 30, 30, 45, 240, ArcType.OPEN);
}
}
Author by
Valentin Vrinceanu
PHP Junior Developer and Senior Web Designer. JavaSE and JavaFX Junior Developer!
Updated on June 07, 2022Comments
-
Valentin Vrinceanu about 2 years
I have a project i am working on JavaFX 2.0, and it is a Drawing Application. I created so far a Pen, and a pen size slider, color picker, eraser and Undo functions. I do not know yet how to create basic Shapes like Rectangle, Circles or Polygons. The shapes must hape custom dimension and i need to draw them into my scene. Can anyone help me out?
I would really appreciate any help.
Thanks a lot!