java JavaFX |反射类

JavaFX |反射类

原文:https://www.geeksforgeeks.org/javafx-reflection-class/

反射类是 JavaFX 的一部分。反射类用于在输入值的实际图像下方添加反射图像。反射图像不会响应鼠标事件或输入上的包含方法。

类的构造函数:

反射():创建新的反射对象。
反射(双拓扑集、双分数、双拓扑容量、双底部不透明度):使用指定的拓扑集、分数、拓扑容量和底部不透明度创建新的反射对象。

常用方法:

方法	说明
getBottomOpacity()	返回底部不透明度的值
getTopOpacity()	返回拓扑容量的值
getFraction()	返回反射图像与真实图像的比例
getTopOffset()	返回顶部偏移量的值
getInput()	返回属性输入的值
setBottomOpacity(双 v)	设置底部不透明度的值
settopopacity(双 v)	设置拓扑容量的值
setFraction(双 v)	设置反射图像占真实图像的比例
settopoffset(双 v)	设置顶部偏移的值
设置输入(效果五)	设置属性输入的值

下面的程序说明了反射类的使用:

Java program to add a reflection to the image using the reflection class: In this program a FileInputStream is created and an image is taken as input from a file. An Image named image is created using the input from the file input stream. From the image, an image view object is created and it is added to the VBox. The VBox is then added to the scene and the scene is added to the stage. A Reflection effect is created and the effect is set to the image view using setEffect() function.

```java // Java program to add a reflection to // the image using the reflection class import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.scene.image.; import javafx.scene.effect.; import java.io.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group;

public class reflection_1 extends Application {

// launch the application     public void start(Stage stage) throws Exception     {

// set title for the stage         stage.setTitle("reflection example");

// create a input stream         FileInputStream input = new FileInputStream("D:\GFG.png");

// create a image         Image image = new Image(input);

// create a image View         ImageView imageview = new ImageView(image);

// create a reflection effect         Reflection reflection = new Reflection();

// set effect         imageview.setEffect(reflection);

// create a VBox         VBox vbox = new VBox(imageview);

// create a scene         Scene scene = new Scene(vbox, 200, 200);

// set the scene         stage.setScene(scene);

stage.show();     }

// Main Method     public static void main(String args[])     {         // launch the application         launch(args);     } } ```

输出:
Java program to add a reflection to the image using the reflection class and set the top offset, top opacity, bottom opacity and fraction of image which will appear as a reflection: In this program a FileInputStream is created and an image is taken as input from a file. Image named image is created using the input from the file input stream. From the image, an image view object is created and it is added to the VBox . The VBox is then added to the scene and the scene is added to the stage. A Reflection effect is created and the effect is set to the image view using setEffect() function. The bottom Opacity, top Opacity, top offset, and fraction are set using the setBottomOpacity(), setTopOpacity(), setFraction(), and setTopOffset() function respectively.

```java // Java program to add a reflection to the image // using the reflection class and set the top // offset, top opacity bottom opacity and fraction // of image which will appear as reflection import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.scene.image.; import javafx.scene.effect.; import java.io.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group;

public class reflection_2 extends Application {

// launch the application     public void start(Stage stage) throws Exception     {

// set title for the stage         stage.setTitle("reflection example");

// create a input stream         FileInputStream input = new FileInputStream("D:\GFG.png");

// create a image         Image image = new Image(input);

// create a image View         ImageView imageview = new ImageView(image);

// create a reflection effect         Reflection reflection = new Reflection();

// set fraction         reflection.setFraction(0.6);

// set top Opacity         reflection.setTopOpacity(0.3);

// set bottom Opacity         reflection.setBottomOpacity(0.1);

// set top offset         reflection.setTopOffset(0.5);

// set effect         imageview.setEffect(reflection);

// create a VBox         VBox vbox = new VBox(imageview);

// create a scene         Scene scene = new Scene(vbox, 200, 200);

// set the scene         stage.setScene(scene);

stage.show();     }

// Main Method     public static void main(String args[])     {

// launch the application         launch(args);     } } ```

输出: