JavaFX | LinearGradient Class

LinearGradient class is a part of JavaFX. LinearGradient class fills a shape with a linear color gradient pattern. A user may specify more than one LinearGradient pattern and the system will provide interpolation between the colors.

Constructors of the class:

1. LinearGradient(double sX, double sY, double eX, double eY, boolean prop, CycleMethod c, List s): Creates a new Lineargradient object.
2. LinearGradient(double sX, double sY, double eX, double eY, boolean prop, CycleMethod c, Stop… s): Creates a new LinearGradient object.

Commonly Used Methods:

Below programs illustrate the use of LinearGradient Class:

1. Java program to create a LinearGradient object and add stops to it and apply it to the circle: In this program we will create an array of Stop objects with their offset values ranging from 0 to 1. Create a LinearGradient object with specified stops. Now create a circle with specified x, y positions, and radius and add the linear gradient to it. Then create a VBox and set the alignment of it. Add the circle to the vbox and add the vbox to the scene and add the scene to the stage and call the show() function to display the results.

   
   

   
   
   

   // Java program to create a LinearGradient  // object and add stops to it and apply it // to the circle import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.scene.layout.*; import javafx.scene.paint.*; import javafx.scene.text.*; import javafx.geometry.*; import javafx.scene.layout.*; import javafx.scene.shape.*; import javafx.scene.paint.*;     public class Linear_Gradient_1 extends Application {     // launch the application public void start(Stage stage) {        try {            // set title for the stage         stage.setTitle("Linear Gradient");            // create stops         Stop[] stop = {new Stop(0, Color.RED),                         new Stop(0.5, Color.GREEN),                         new Stop(1, Color.BLUE)};            // create a Linear gradient object         LinearGradient linear_gradient = new LinearGradient(0, 0,                           1, 0, true, CycleMethod.NO_CYCLE, stop);            // create a circle         Circle circle = new Circle(100, 100, 70);            // set fill         circle.setFill(linear_gradient);            // create VBox         VBox vbox = new VBox(circle);            // ste Alignment         vbox.setAlignment(Pos.CENTER);            // create a scene         Scene scene = new Scene(vbox, 400, 300);            // set the scene         stage.setScene(scene);            stage.show();     }        catch (Exception e) {            System.out.println(e.getMessage());     } }    // Main Method public static void main(String args[]) {        // launch the application     launch(args); } }

   Output:

   

2. Java program to create a LinearGradient object and add stops to it and set the CycleMethod to reflect and set proportional to false and apply it to the circle: In this program we will create an array of Stop objects with their offset values ranging from 0 to 1. Then create a LinearGradient object with specified stops. Set the CycleMethod to reflect and set proportional to false. Create a circle with specified x, y positions, and radius and add the linear gradient to it. Then create a VBox and set the alignment of it. Add the circle to the vbox and add the vbox to the scene and add the scene to the stage and call the show() function to display the results.

   
   

   
   
   

   // Java program to create a LinearGradient object  // and add stops to it and set the CycleMethod to // reflect and set proportional to false and  // apply it to the circle import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.scene.layout.*; import javafx.scene.paint.*; import javafx.scene.text.*; import javafx.geometry.*; import javafx.scene.layout.*; import javafx.scene.shape.*; import javafx.scene.paint.*;    public class Linear_Gradient_2 extends Application {        // launch the application     public void start(Stage stage)     {            try {                // set title for the stage             stage.setTitle("Linear Gradient");                // create stops             Stop[] stop = {new Stop(0, Color.RED), new Stop(0.5,                           Color.GREEN), new Stop(1, Color.BLUE)};                // create a Linear gradient object             LinearGradient linear_gradient = new LinearGradient(0, 0,                              35, 0, false, CycleMethod.REFLECT, stop);                // create a circle             Circle circle = new Circle(100, 100, 70);                // set fill             circle.setFill(linear_gradient);                // create VBox             VBox vbox = new VBox(circle);                // ste Alignment             vbox.setAlignment(Pos.CENTER);                // create a scene             Scene scene = new Scene(vbox, 400, 300);                // set the scene             stage.setScene(scene);                stage.show();         }            catch (Exception e) {                System.out.println(e.getMessage());         }     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

Note: The above programs might not run in an online IDE please use an offline compiler.

Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/paint/LinearGradient.html