# IfcClash IFC clash detection library to handle intersections, collisions, and clearance checks between building elements in IFC models. ## Features - **Multiple detection modes**: intersection, collision, and clearance checking - **Flexible clash sets**: Compare elements within a single model or between multiple IFC files - **Smart grouping**: Automatically group related clashes - **Export options**: Export clash results to BCF-XML or JSON formats - **Element filtering**: Use selectors to specify which elements to check for clashes