gLayout-viewer

PySide6 GUI for browsing and generating gLayout pcells.

The catalogue (cells, primitives, parameters, defaults) is introspected at runtime from the glayout package via discovery.py -- adding or renaming cells in the upstream repo does not require any changes to this viewer.

Features

• Dockable sub-window interface (QDockWidgets): cells tree, parameter form, GDS preview (matplotlib), DRC report, LVS report, log strip.
• Drag-to-pan and scroll-to-zoom on the preview canvas.
• Theme picker (Fusion light/dark, Solarized, Nord, Dracula, system) with matplotlib retinting.
• Layout persistence in default_layout.json (ASCII; base64-wrapped QMainWindow.saveState() payload).
• DRC via pdk.drc(...) (klayout) and LVS via pdk.lvs_netgen(...) (magic + netgen). Pre-flight checks for missing tools / PDK_ROOT.

Running

Used as a submodule of a gLayout checkout:

./start_gui.sh

The launcher prefers $GLAYOUT_PYTHON, then a gLayout conda env, then the system python3. It sets PYTHONPATH=<repo>/src and stubs PDK_ROOT if unset (override PDK_ROOT to point at a real PDK install for LVS).

Required Python deps

PySide6, matplotlib, gdstk (in addition to glayout's own deps).