JavaFX | CubicCurve with examples
CubicCurve is a part of JavaFX.The CubiCurve class defines a cubic Bézier parametric curve segment in (x, y) coordinate space. The Cubic curve passes through the starting point and the ending point and also passes through the two control points. The control points are specified as Bézier control points.
Constructor for the class are :
- CubicCurve(): creates a new instance of cubic curve
- CubicCurve(double startX, double startY, double controlX1, double controlY1, double controlX2, double controlY2, double endX, double endY) : creates a instance of cubic curve with specified starting and ending points and two control points.
commonly used methods
Method | Explanation |
---|---|
getControlX1() | returns the x coordinate of 1st control point |
getControlY1() | returns the y coordinate of 1st control point |
getControlX2() | returns the x coordinate of 2nd control point |
getControlY2() | returns the y coordinate of 2nd control point |
getEndX() | returns the x coordinate for the end point |
getEndY() | returns the y coordinate for the end point |
getStartX() | returns the x coordinate for the start point |
getStartY() | returns the y coordinate for the start point |
setControlX1(double value) | sets the x coordinate for the 1st control point |
setControlY1(double value) | sets the y coordinate for the 1st control point |
setControlX2(double value) | sets the x coordinate for the 2nd control point |
setControlY2(double value) | sets the y coordinate for the 2nd control point |
setEndX(double value) | sets the x coordinate for the end point |
setEndY(double value) | sets the y coordinate for the end point |
setStartX(double value) | sets the x coordinate for the start point |
setStartY(double value) | sets the y coordinate for the start point |
Java program to create a cubic curve
This program creates a CubicCurve indicated by the name cubic_curve( two control point s, start point and end point is passed as arguments). The CubicCurve will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the cubic_curve is attached.The group is attached to the scene. Finally, the show() method is called to display the final results.
// Java program to create a cubic curve import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.DrawMode; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.scene.shape.CubicCurve; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; public class cubic_curve_0 extends Application { // launch the application public void start(Stage stage) { // set title for the stage stage.setTitle( "creating cubic_curve" ); // create a cubic_curve CubicCurve cubic_curve = new CubicCurve( 10 .0f, 10 .0f, 200 .0f, 140 .0f, 120 .0f, 240 .0f, 160 .0f, 70 .0f); // create a Group Group group = new Group(cubic_curve); // translate the cubic_curve to a position cubic_curve.setTranslateX( 100 ); cubic_curve.setTranslateY( 100 ); // create a scene Scene scene = new Scene(group, 500 , 300 ); // set the scene stage.setScene(scene); stage.show(); } public static void main(String args[]) { // launch the application launch(args); } } |
Output:
Java program to create a cubic curve and set a fill for cubic curve
This program creates a CubicCurve indicated by the name cubic_curve(two control points, start point and end point are set using setControlX1(), setControlY1(), setControlX2(), setControlY2(), setStartX(), setStartY(), setEndX(), ans setEndY() functions). The CubicCurvewill be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the cubic_curve is attached.The group is attached to the scene. Finally, the show() method is called to display the final results.The function setFill() is used to set fill for the cubic curve.
// Java program to create a cubic curve and set a fill for cubic curve import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.shape.DrawMode; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.scene.shape.CubicCurve; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.Group; import javafx.scene.paint.Color; public class cubic_curve_1 extends Application { // launch the application public void start(Stage stage) { // set title for the stage stage.setTitle( "creating cubic_curve" ); // create a cubic_curve CubicCurve cubic_curve = new CubicCurve(); // set start cubic_curve.setStartX( 10 .0f); cubic_curve.setStartY( 10 .0f); // set control coordinates cubic_curve.setControlX1( 200 .0f); cubic_curve.setControlY1( 140 .0f); cubic_curve.setControlX2( 120 .0f); cubic_curve.setControlY2( 240 .0f); // set end coordinates cubic_curve.setEndX( 160 .0f); cubic_curve.setEndY( 70 .0f); // create a Group Group group = new Group(cubic_curve); // translate the cubic_curve to a position cubic_curve.setTranslateX( 100 ); cubic_curve.setTranslateY( 100 ); // set fill for the cubic curve cubic_curve.setFill(Color.BLUE); // create a scene Scene scene = new Scene(group, 500 , 300 ); // set the scene stage.setScene(scene); stage.show(); } public static void main(String args[]) { // launch the application launch(args); } } |
Output:
Note : The above programs might not run in online IDE please use an offline compiler
Reference:
https://docs.oracle.com/javase/8/javafx/api/javafx/scene/shape/CubicCurve.html