User Guide

Defining Regions

• Region Shapes
• Region Metadata

Using Regions

• Checking for Points Inside Regions
• Combining Regions
• Computing Overlap Masks
• Coordinate Frame Transformation of Spherical Regions
• Bounding Regions for On-Sky Spatial Searches
• Plotting Regions with Matplotlib

Region File I/O

• Reading/Writing Region Files

Shapely Conversions

• Converting Regions to Shapely Objects