FloatMap effect : FloatMap « JavaFX « Java

1. Java
2. JavaFX
3. FloatMap

FloatMap effect

 

// revised from JavaFX API

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.DisplacementMap;
import javafx.scene.effect.FloatMap;
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 Main extends Application {
  public static void main(String[] args) {
    Application.launch(args);
  }

  @Override
  public void start(Stage primaryStage) {
    primaryStage.setTitle("");
    Group root = new Group();
    Scene scene = new Scene(root, 300, 250, Color.WHITE);

    int w = 220;
    int h = 100;
    FloatMap map = new FloatMap();
    map.setWidth(w);
    map.setHeight(h);

    for (int i = 0; i < w; i++) {
      double v = (Math.sin(i / 20.0 * Math.PI) - 0.5) / 40.0;
      for (int j = 0; j < h; j++) {
        map.setSamples(i, j, 0.0f, (float) v);
      }
    }

    Group g = new Group();
    DisplacementMap dm = new DisplacementMap();
    dm.setMapData(map);

    g.setEffect(dm);
    g.setCache(true);

    Rectangle r = new Rectangle();
    r.setX(20.0);
    r.setY(20.0);
    r.setWidth(w);
    r.setHeight(h);
    r.setFill(Color.BLUE);

    g.getChildren().add(r);

    Text t = new Text();
    t.setX(40.0);
    t.setY(80.0);
    t.setText("Wavy Text");
    t.setFill(Color.YELLOW);
    t.setFont(Font.font(null, FontWeight.BOLD, 36));

    g.getChildren().add(t);

    root.getChildren().add(g);
    primaryStage.setScene(scene);
    primaryStage.show();
  }
}

   
  

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