MATLAB Mouse Drawing Tool with Advanced Shape Rendering

When implementing mouse drawing functionality in MATLAB, users can select drawing markers through pop-up menus and record mouse coordinates via color editing interfaces. However, basic implementations often remain limited to line drawing, lacking support for rectangles, ellipses, and other shapes. The primary technical challenge involves rendering dynamic shape outlines that track mouse movement during drag operations, requiring continuous coordinate updates and graphical object re-rendering through callback functions.

This enhanced program demonstrates several notable features:

1. Multi-shape drawing capability implementing point, line, rectangle, and ellipse rendering using MATLAB's patch and plot functions with bounding box calculations

2. Customizable markers and line types through property-value pairs in plotting commands, supporting various MATLAB line styles ('-','--',':') and markers ('o','s','d')

3. Color selection system utilizing uisetcolor function or custom RGB input dialogs for full spectrum color control

4. Real-time coordinate display achieved through WindowButtonMotionF callback that continuously updates text fields with current pointer position

5. Canvas clearing functionality using cla or delete commands to reset axes while preserving interface elements

6. Multi-format image export supporting BMP, JPG, and GIF through print or getframe functions with resolution and quality parameters

7. User-friendly interface design mimicking Windows Paint with toolbar panels, context menus, and intuitive controls using uicontainer organization

8. Comprehensive GUI learning resource covering event handling, graphical object management, and state machine implementation for drawing mode transitions

Through expanded functionality and technical enhancements, this application provides both practical drawing tools and valuable educational material for MATLAB GUI development, demonstrating advanced handle graphics programming techniques.