JavaFX | Light.Point Class

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:

Method	Explanation
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