转换意味着通过应用规则将某些图形更改为其他图形.我们可以进行各种类型的转换，例如翻译，向上或向下缩放，旋转，剪切，等.
使用JavaFX，您可以在节点上应用转换等作为轮换，缩放和翻译.所有这些转换都由各种类表示，它们属于包 javafx.scene.transform .
| S.No | 转型&描述 |
|---|---|
| 1 | Rotation 在旋转中，我们以特定角度旋转对象θ(theta)从它的起源. |
| 2 | Scaling 要更改对象的大小，缩放转换是使用. |
| 3 | Translation 将对象移动到屏幕上的其他位置. |
| 4 | Shearing 倾斜对象形状的转换称为剪切转换格式离开. |
您还可以在JavaFX中的节点上应用多个转换.以下程序是一个同时对矩形执行旋转，缩放和平移转换的示例.
将此代码保存在文件中名称为 :
MultipleTransformationsExample.java .
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Scale;
import javafx.scene.transform.Translate;
import javafx.stage.Stage;
public class MultipleTransformationsExample extends Application {
@Override
public void start(Stage stage) {
//Drawing a Rectangle
Rectangle rectangle = new Rectangle(50, 50, 100, 75);
//Setting the color of the rectangle
rectangle.setFill(Color.BURLYWOOD);
//Setting the stroke color of the rectangle
rectangle.setStroke(Color.BLACK);
//creating the rotation transformation
Rotate rotate = new Rotate();
//Setting the angle for the rotation
rotate.setAngle(20);
//Setting pivot points for the rotation
rotate.setPivotX(150);
rotate.setPivotY(225);
//Creating the scale transformation
Scale scale = new Scale();
//Setting the dimensions for the transformation
scale.setX(1.5);
scale.setY(1.5);
//Setting the pivot point for the transformation
scale.setPivotX(300);
scale.setPivotY(135);
//Creating the translation transformation
Translate translate = new Translate();
//Setting the X,Y,Z coordinates to apply the translation
translate.setX(250);
translate.setY(0);
translate.setZ(0);
//Adding all the transformations to the rectangle
rectangle.getTransforms().addAll(rotate, scale, translate);
//Creating a Group object
Group root = new Group(rectangle);
//Creating a scene object
Scene scene = new Scene(root, 600, 300);
//Setting title to the Stage
stage.setTitle("Multiple transformations");
//Adding scene to the stage
stage.setScene(scene);
//Displaying the contents of the stage
stage.show();
}
public static void main(String args[]){
launch(args);
}
}使用以下命令从命令提示符编译并执行保存的java文件.
javac MultipleTransformationsExample.java java MultipleTransformationsExample
执行时，上述程序生成一个JavaFX窗口，如下所示.
您还可以在3D对象上应用变换.以下是旋转和翻译三维框的示例.
将此代码保存在名为 RotationExample3D.java 的文件中.
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.shape.Box;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Translate;
import javafx.stage.Stage;
public class RotationExample3D extends Application {
@Override
public void start(Stage stage) {
//Drawing a Box
Box box = new Box();
//Setting the properties of the Box
box.setWidth(150.0);
box.setHeight(150.0);
box.setDepth(150.0);
//Creating the translation transformation
Translate translate = new Translate();
translate.setX(400);
translate.setY(150);
translate.setZ(25);
Rotate rxBox = new Rotate(0, 0, 0, 0, Rotate.X_AXIS);
Rotate ryBox = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
Rotate rzBox = new Rotate(0, 0, 0, 0, Rotate.Z_AXIS);
rxBox.setAngle(30);
ryBox.setAngle(50);
rzBox.setAngle(30);
box.getTransforms().addAll(translate,rxBox, ryBox, rzBox);
//Creating a Group object
Group root = new Group(box);
//Creating a scene object
Scene scene = new Scene(root, 600, 300);
//Setting title to the Stage
stage.setTitle("Drawing a cylinder");
//Adding scene to the stage
stage.setScene(scene);
//Displaying the contents of the stage
stage.show();
}
public static void main(String args[]){
launch(args);
}
}使用以下命令从命令提示符编译并执行保存的java文件.
javac RotationExample3D.java java RotationExample3D
执行时，上述程序生成一个JavaFX窗口，如下所示.
