qgis-checklist

name	qgis-checklist
description	Sub-skill of qgis: Checklist (+2).
version	1.0.0
category	engineering/gis
type	reference
scripts_exempt	true

Checklist (+2)

Checklist

• Layer loads and layer.isValid() returns True
• Feature count matches expected (layer.featureCount())
• CRS is correct (layer.crs().authid() == expected EPSG)
• Geometry is valid (run native:fixgeometries if not)
• Well coordinates plot in correct basin/region (visual sanity)
• Reprojected coordinates match manual calculation spot check
• Output file size is non-zero and opens in external QGIS GUI

Coordinate Sanity Check

# Spot check: print first 3 well locations
for feat in layer.getFeatures():
    pt = feat.geometry().asPoint()
    print(f"{feat['well_name']}: lon={pt.x():.4f}, lat={pt.y():.4f}")
    if limit_counter := limit_counter + 1 >= 3:
        break

Marine-Offshore CRS Reference

Region	UTM Zone	EPSG
North Sea	31N	32631
Gulf of Mexico	15N	32615
Brazil offshore	23S–25S	32723–32725
Australia NW shelf	50S	32750
Global (geographic)	WGS84	4326
Global (web maps)	Web Mercator	3857