java JavaFX | ImagePattern 类

JavaFX | ImagePattern 类

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

ImagePattern 是 JavaFX 的一部分。此类用于用图像图案填充形状。用户可以指定锚定矩形，其定义图像相对于形状左上角的位置、宽度和高度。如果形状超出了定位矩形，图像将被平铺。

类的构造函数:

ImagePattern(Image i) :用指定的图像创建 ImagePattern 的新实例。
ImagePattern(Image i，double x，double y，double width，double height，boolean prop) :创建具有指定 x，y 坐标、定义的宽度和高度以及是否成比例的图像。

常用方法:

方法	说明
getHeight（）	返回图像图案的高度。
getWidth（）	返回图像图案的宽度。
getImage()	返回图像模式的图像。
getX（）	返回定位矩形的 X 原点。
盖蒂（）	返回定位矩形的 Y 原点。
异戊二烯()	返回油漆是否完全不透明。
isProportional()	返回开始和结束位置是否完全成比例。

以下程序说明了图像模式类的使用:

Java Program to create a ImagePattern from a image and apply it to the rectangle: In this program we will create a ImagePattern named image_pattern from a image. Import the image using a FileInputStream. Add this image_pattern to the rectangle using the setFill() function. Create a VBox and add the rectangle to the vbox. Add the vbox to the scene and add the scene to the stage. Call the show() function to display the results.

```java // Java Program to create a ImagePattern from // a image and apply it to the rectangle import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.control.Label; import javafx.stage.Stage; import javafx.scene.image.; import java.io.; import javafx.scene.paint.; import javafx.scene.shape.;

public class ImagePattern_1 extends Application {

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

// set title for the stage         s.setTitle("Creating ImagePattern");

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

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

// create ImagePattern         ImagePattern image_pattern = new ImagePattern(image);

// create a Rectangle         Rectangle rect = new Rectangle(100, 100, 200, 150);

// set fill for rectangle         rect.setFill(image_pattern);

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

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

// set the scene         s.setScene(sc);

s.show();     }

public static void main(String args[])     {

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

输入图像:

输出:
Java Program to create an ImagePattern form an image, set the x, y coordinate, its height and width, and whether it is proportional or not and apply it to the rectangle: In this program we will create an ImagePattern named image_pattern from an image. Import the image using a FileInputStream. Specify the x, y coordinates of the anchor rectangle, its height, width and whether it is proportional or not bypassing the values as arguments of the constructor of ImagePattern. Add this image_pattern to the rectangle using the setFill() function. Create a VBox and add the rectangle to vbox. Add the vbox to the scene and add the scene to the stage. Call the show() function to display the results.

```java // Java Program to create an ImagePattern form an image, // set the x, y coordinate, its height and width, and // whether it is proportional or not and apply it to // the rectangle import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.control.Label; import javafx.stage.Stage; import javafx.scene.image.; import java.io.; import javafx.scene.paint.; import javafx.scene.shape.;

public class ImagePattern_2 extends Application {

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

// set title for the stage         s.setTitle("Creating ImagePattern");

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

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

// create ImagePattern         ImagePattern image_pattern = new ImagePattern(image, 100, 100,                                                      100, 100, false);

// create a Rectangle         Rectangle rect = new Rectangle(100, 100, 200, 150);

// set fill for rectangle         rect.setFill(image_pattern);

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

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

// set the scene         s.setScene(sc);

s.show();     }

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

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

输入图像:

输出: