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JavaFX | Light.Point Class
  • Last Updated : 05 Nov, 2019
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Light.Point class is a part of JavaFX. Light.Point class represents a point light source in 3D space. Light.Point class extends the Light class.

Constructors of the class:

  1. Point(): Creates a new Point Light object with default values.
  2. Point(double x, double y, double z, Color color): Creates a new Point Light object with x, y, z and color values.

Commonly Used Methods:

MethodExplanation
getX()Returns the value of x.
getY()Returns the value of y.
getZ()Returns the value of z.
setX(double v)Sets the value of x.
setY(double v)Sets the value of y.
setZ(double v)Sets the value of z.
getColor()Returns the color of light.
setColor(Color v)Sets the color of light.

Below programs illustrate the use of Light.point class:

  1. Java Program to create a Point light and add it to a rectangle: In this program we will create a Rectangle named rectangle with specified height and width. We will also create a Light.Point object named light. We will set the x, y, z values using setX(), setY() and setZ() function. Now create a lighting object and add the light object to lighting using setLight() function. We will set the Lighting effect to the Rectangle and add it to the scene and add the scene to the stage and call the show function to display the results.




    // Java Program to create a Point light 
    // and add it to a rectangle
    import javafx.application.Application;
    import javafx.scene.Scene;
    import javafx.scene.shape.Rectangle;
    import javafx.scene.control.*;
    import javafx.stage.Stage;
    import javafx.scene.Group;
    import javafx.scene.effect.Light.*;
    import javafx.scene.effect.*;
    import javafx.scene.paint.Color;
      
    public class Point_1 extends Application {
      
        // launch the application
        public void start(Stage stage)
        {
      
            // set title for the stage
            stage.setTitle("creating Light.Point");
      
            // create point Light object
            Light.Point light = new Light.Point();
      
            // set coordinates
            light.setX(100);
            light.setY(100);
            light.setZ(100);
      
            // create a lighting
            Lighting lighting = new Lighting();
      
            // set Light of lighting
            lighting.setLight(light);
      
            // create a rectangle
            Rectangle rect = new Rectangle(250, 250);
      
            // set fill
            rect.setFill(Color.WHITE);
      
            // set effect
            rect.setEffect(lighting);
      
            // create a Group
            Group group = new Group(rect);
      
            // create a scene
            Scene scene = new Scene(group, 500, 300);
      
            // set the scene
            stage.setScene(scene);
      
            stage.show();
        }
      
        // Main Method
        public static void main(String args[])
        {
      
            // launch the application
            launch(args);
        }
    }

    Output:



  2. Java Program to create a Point light and add it to a rectangle and set the color of the light to red: In this program we will create a Rectangle named rectangle with specified height and width. We will also create a Light.Point object named light. Now pass the x, y, z and the color values as parameters of the constructor. We will create a lighting object and add the light object to lighting using setLight() function. We will set the Lighting effect to the Rectangle and add it to the scene and add the scene to the stage and call the show function to display the results.




    // Java Program to create a Point light and add it to
    // a rectangle and set the color of the light to red
    import javafx.application.Application;
    import javafx.scene.Scene;
    import javafx.scene.shape.Rectangle;
    import javafx.scene.control.*;
    import javafx.stage.Stage;
    import javafx.scene.Group;
    import javafx.scene.effect.Light.*;
    import javafx.scene.effect.*;
    import javafx.scene.paint.Color;
      
    public class Point_2 extends Application {
      
        // launch the application
        public void start(Stage stage)
        {
      
            // set title for the stage
            stage.setTitle("creating Light.Point");
      
            // create point Light object
            Light.Point light = new Light.Point(100, 100
                                         100, Color.RED);
      
            // create a lighting
            Lighting lighting = new Lighting();
      
            // set Light of lighting
            lighting.setLight(light);
      
            // create a rectangle
            Rectangle rect = new Rectangle(250, 250);
      
            // set fill
            rect.setFill(Color.WHITE);
      
            // set effect
            rect.setEffect(lighting);
      
            // create a Group
            Group group = new Group(rect);
      
            // create a scene
            Scene scene = new Scene(group, 500, 300);
      
            // set the scene
            stage.setScene(scene);
      
            stage.show();
        }
      
        // 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/effect/Light.Point.html

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