# Gesture Recognition Tool

This document describes all available gestures in the Canvas application. Use the gesture tool (press `g` or select from toolbar) to draw these gestures and trigger their actions.

## How to Use

1. **Activate the Gesture Tool**: Press `g` or select the gesture tool from the toolbar
2. **Draw a Gesture**: Use your mouse, pen, or finger to draw one of the gestures below
3. **Release**: The gesture will be recognized and the corresponding action will be performed

## Available Gestures

### Basic Gestures (Default Mode)

| Gesture | Description | Action |
|---------|-------------|---------|
| **X** | Draw an "X" shape | Deletes selected shapes |
| **Rectangle** | Draw a rectangle outline | Creates a rectangle shape at the gesture location |
| **Circle** | Draw a circle/oval | Selects and highlights shapes under the gesture |
| **Check** | Draw a checkmark (✓) | Changes color of shapes under the gesture to green |
| **Caret** | Draw a caret (^) pointing up | Aligns selected shapes to the top |
| **V** | Draw a "V" shape pointing down | Aligns selected shapes to the bottom |
| **Delete** | Draw a delete symbol (similar to X) | Deletes selected shapes |
| **Pigtail** | Draw a pigtail/spiral shape | Selects shapes under gesture and rotates them 90° counterclockwise |

### Layout Gestures (Hold Shift + Draw)

| Gesture | Description | Action |
|---------|-------------|---------|
| **Circle Layout** | Draw a circle while holding Shift | Arranges selected shapes in a circle around the gesture center |
| **Triangle Layout** | Draw a triangle while holding Shift | Arranges selected shapes in a triangle around the gesture center |

## Gesture Tips

- **Accuracy**: Draw gestures clearly and completely for best recognition
- **Size**: Gestures work at various sizes, but avoid extremely small or large drawings
- **Speed**: Draw at a natural pace - not too fast or too slow
- **Shift Key**: Hold Shift while drawing to access layout gestures
- **Selection**: Most gestures work on selected shapes, so select shapes first if needed

## Keyboard Shortcut

- **`g`**: Activate the gesture tool

## Troubleshooting

- If a gesture isn't recognized, try drawing it more clearly or at a different size
- Make sure you're using the gesture tool (cursor should change to a cross)
- For layout gestures, remember to hold Shift while drawing
- Some gestures require shapes to be selected first

## Examples

### Deleting Shapes
1. Select the shapes you want to delete
2. Press `g` to activate gesture tool
3. Draw an "X" over the shapes
4. Release - the shapes will be deleted

### Creating a Rectangle
1. Press `g` to activate gesture tool
2. Draw a rectangle outline where you want the shape
3. Release - a rectangle will be created

### Arranging Shapes in a Circle
1. Select the shapes you want to arrange
2. Press `g` to activate gesture tool
3. Hold Shift and draw a circle
4. Release - the shapes will be arranged in a circle

### Rotating Shapes
1. Select the shapes you want to rotate
2. Press `g` to activate gesture tool
3. Draw a pigtail/spiral over the shapes
4. Release - the shapes will rotate 90° counterclockwise