NodeCanvas

NodeCanvas is a modular PyQt5 framework for interactive canvas editing.
Snap independent tool panels—Palette, Segmentation, Eyedropper, and more—into your drawing surface like nodes, each communicating via signals and slots.

Features

• Palette Module

  • Save/load palettes, adjust color count
  • Clickable swatches with lock, picker, and extraction actions
  • Harmony & randomize modes, H/S/L sliders

• Segmentation Module

  • Tune thresholding & cleanup parameters
  • Preview segmentation on demand

• Dockable Architecture

  • Each tool in its own package—develop and test in isolation
  • Snap into the main window via QDockWidget or QGraphicsProxyWidget

Getting Started

1. Clone this repo

   git clone https://github.com/chapman4444/NodeCanvas.git
   cd NodeCanvas
   

2. Create a virtual environment & install dependencies

   python3 -m venv venv
   source venv/bin/activate    # Linux/macOS
   venv\Scripts\activate     # Windows
   pip install -r requirements.txt
   

3. Run the main application

   python -m main_app.main_window