JavaFX Honeycomb layout design

JavaFx Layout Management: Exercise-11 with Solution

Write a JavaFX layout that displays elements in a honeycomb pattern.

Sample Solution:

JavaFx Code:

//Main.java

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
import javafx.stage.Stage;

public class Main extends Application {

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

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Honeycomb Layout Example");
        Group root = new Group();
        Scene scene = new Scene(root, 800, 600, Color.WHITE);

        int numRows = 5;
        int numCols = 8;
        double hexRadius = 30;
        double hexWidth = Math.sqrt(3) * hexRadius;
        double hexHeight = 2 * hexRadius;

        for (int row = 0; row < numRows; row++) {
            for (int col = 0; col < numCols; col++) {
                double x = col * 1.5 * hexRadius;
                double y = row * hexHeight;
                if (col % 2 == 1) {
                    y += hexHeight / 2;
                }

                Polygon hexagon = createHexagon(x, y, hexRadius);
                root.getChildren().add(hexagon);
            }
        }

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

    private Polygon createHexagon(double x, double y, double radius) {
        Polygon hexagon = new Polygon();
        for (int i = 0; i < 6; i++) {
            double angle = 2.0 * Math.PI * i / 6;
            double xPos = x + radius * Math.cos(angle);
            double yPos = y + radius * Math.sin(angle);
            hexagon.getPoints().addAll(xPos, yPos);
        }
        hexagon.setFill(Color.LIGHTBLUE);
        hexagon.setStroke(Color.BLACK);
        return hexagon;
    }
}

In the exercise above, we create hexagonal shapes using 'Polygon' and position them to form a honeycomb pattern. The "createHexagon()" method calculates the vertices of a hexagon, and we use a nested loop to position these hexagons in a honeycomb grid.

Note: Adjust the 'numRows', 'numCols', 'hexRadius', and other parameters to modify the layout.

Sample Output:

Flowchart:

Java Code Editor:

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