JavaFX: PerspectiveTransform effect

This effect is used to provide 3D effect for 2D content by creating a perspective in Z-axis direction.

 

A perspective transformation is capable of mapping an arbitrary quadrilateral into another arbitrary quadrilateral, while preserving the straightness of lines.

 

‘PerspectiveTransform’ class provides following constructors to get an instance of PerspectiveTransform.

 

public PerspectiveTransform()

public PerspectiveTransform(

         double ulx, double uly,

         double urx, double ury,

         double lrx, double lry,

         double llx, double lly)

 

ulx: specifies the x coordinate of upper left corner

uly: specifies the y coordinate of upper left corner

urx: specifies the x coordinate of upper right corner

ury: specifies the y coordinate of upper right corner

lrx: specifies the x coordinate of lower right corner

lry: specifies the y coordinate of lower right corner

llx: specifies the x coordinate of lower left corner

lly: specifies the y coordinate of lower left corner

 

Find the below working application.

 

PerspectiveTransformDemo.java

package com.sample.app.effects;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.PerspectiveTransform;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class PerspectiveTransformDemo extends Application {

	private static final String STAGE_TITLE = "PerspectiveTransform Demo";

	public static void main(String args[]) {
		launch(args);

	}

	@Override
	public void start(Stage primaryStage) throws Exception {

		PerspectiveTransform perspectiveTrasform = new PerspectiveTransform();
		perspectiveTrasform.setUlx(10.0);
		perspectiveTrasform.setUly(10.0);
		perspectiveTrasform.setUrx(350.0);
		perspectiveTrasform.setUry(30.0);
		perspectiveTrasform.setLrx(350.0);
		perspectiveTrasform.setLry(60.0);
		perspectiveTrasform.setLlx(10.0);
		perspectiveTrasform.setLly(90.0);

		Group g = new Group();
		g.setEffect(perspectiveTrasform);
		g.setCache(true);

		Rectangle rect = new Rectangle();
		rect.setX(10.0);
		rect.setY(10.0);
		rect.setWidth(400.0);
		rect.setHeight(80.0);
		rect.setFill(Color.LIGHTBLUE);

		Text text = new Text();
		text.setX(20.0);
		text.setY(65.0);
		text.setText("Learning JavaFX");
		text.setFill(Color.BLACK);
		text.setFont(Font.font(null, FontWeight.BOLD, 50));

		g.getChildren().addAll(rect, text);

		Scene scene = new Scene(g, 600, 400, Color.WHITE);

		primaryStage.setTitle(STAGE_TITLE);
		primaryStage.setScene(scene);
		primaryStage.show();
	}

}

Output

 

  

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