tdpeuter:
What are some other visualisation ideas to quickly debug a red black tree

GitHub Copilot Chat:
Here are some additional visualization ideas to quickly debug a red-black tree:

1. **Graphical User Interface (GUI) with Swing**:
   - Create a Swing application to draw the tree structure.
   - Use different colors for red and black nodes.

2. **Graphviz/DOT Language**:
   - Generate a DOT file representing the tree.
   - Use Graphviz to render the tree as an image.

3. **ASCII Art**:
   - Print the tree structure in the console using ASCII characters.
   - Indicate node colors with text annotations.

4. **Web-based Visualization**:
   - Use a web framework (e.g., D3.js) to create an interactive tree visualization.
   - Display the tree in a web browser with color-coded nodes.

### Example: Graphviz/DOT Language

#### Plan
1. Create a method to generate a DOT representation of the tree.
2. Use Graphviz to render the DOT file.

#### Code

```java
package oplossing;

import java.io.FileWriter;
import java.io.IOException;

public class RedBlackTree<E extends Comparable<E>> {
    private ColoredNode<E> root;

    public ColoredNode<E> root() {
        return root;
    }

    public boolean add(E value) {
        // Implementation of add method
        return true;
    }

    public void generateDotFile(String filename) throws IOException {
        try (FileWriter writer = new FileWriter(filename)) {
            writer.write("digraph G {\n");
            if (root != null) {
                generateDotFile(root, writer);
            }
            writer.write("}\n");
        }
    }

    private void generateDotFile(ColoredNode<E> node, FileWriter writer) throws IOException {
        if (node.getLeft() != null) {
            writer.write("  \"" + node.getValue() + "\" -> \"" + node.getLeft().getValue() + "\" [color=" + (node.getLeft().getColour() == 0 ? "black" : "red") + "];\n");
            generateDotFile(node.getLeft(), writer);
        }
        if (node.getRight() != null) {
            writer.write("  \"" + node.getValue() + "\" -> \"" + node.getRight().getValue() + "\" [color=" + (node.getRight().getColour() == 0 ? "black" : "red") + "];\n");
            generateDotFile(node.getRight(), writer);
        }
    }
}
```

### Example: ASCII Art

#### Plan
1. Create a method to print the tree structure using ASCII characters.
2. Traverse the tree and format the output.

#### Code

```java
package oplossing;

import java.util.LinkedList;
import java.util.Queue;

public class RedBlackTree<E extends Comparable<E>> {
    private ColoredNode<E> root;

    public ColoredNode<E> root() {
        return root;
    }

    public boolean add(E value) {
        // Implementation of add method
        return true;
    }

    public void printAsciiTree() {
        if (root == null) {
            System.out.println("Tree is empty.");
            return;
        }

        Queue<ColoredNode<E>> queue = new LinkedList<>();
        queue.add(root);

        while (!queue.isEmpty()) {
            int levelSize = queue.size();
            while (levelSize > 0) {
                ColoredNode<E> node = queue.poll();
                if (node != null) {
                    System.out.print(node.getValue() + "(" + (node.getColour() == 0 ? "B" : "R") + ") ");
                    queue.add(node.getLeft());
                    queue.add(node.getRight());
                } else {
                    System.out.print("null ");
                }
                levelSize--;
            }
            System.out.println();
        }
    }
}
```