A cubic curve is a third-degree polynomial function of two variables.
In JavaFX a cubic curve is represented by the javafx.scene.shape.CubicCurve class. This class contains eight properties they are −
startX − This property represents the x coordinate of the starting point of the curve. You can set the value to this property using the setStartX() method.
startY − This property represents the y coordinate of the starting point of the curve. You can set the value to this property using the setStartY() method.
controlX1: This property represents the x coordinate of the first control point of the curve. You can set the value to this property using the setControlX1() method.
controlY1 − This property represents the y coordinate of the first control point of the curve. You can set the value to this property using the setControlY1() method.
controlX2 − This property represents the x coordinate of the second control point of the curve. You can set the value to this property using the setControlX2() method.
controlY2 − This property represents the y coordinate of the second control point of the curve. You can set the value to this property using the setControlY2() method.
endX − This property represents the x coordinate of the endpoint of the curve. You can set the value to this property using the setEndX() method.
endY − This property represents the y coordinate of the endpoint of the curve. You can set the value to this property using the setEndY() method.
To create a circle you need to −
Instantiate this class.
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.CubicCurve;
public class DrawingCubicCurve extends Application {
@Override
public void start(Stage stage) {
//Drawing a cubic curve
CubicCurve cubicCurve = new CubicCurve();
//Setting properties to cubic curve
cubicCurve.setStartX(75.0f);
cubicCurve.setStartY(75.0f);
cubicCurve.setControlX2(250.0f);
cubicCurve.setControlY2(250.0f);
cubicCurve.setControlX1(400.0f);
cubicCurve.setControlY1(40.0f);
cubicCurve.setEndX(500.0f);
cubicCurve.setEndY(260.0f);
//Setting other properties
cubicCurve.setFill(Color.CHOCOLATE);
cubicCurve.setStrokeWidth(8.0);
cubicCurve.setStroke(Color.BROWN);
//Setting the scene object
Group root = new Group(cubicCurve);
Scene scene = new Scene(root, 600, 300);
stage.setTitle("Drawing a cubic curve");
stage.setScene(scene);
stage.show();
}
public static void main(String args[]){
launch(args);
}
}Output
