GIS MCP Server

Instructions

Implementation Reference

• src/gis_mcp/shapely_functions.py:486-511 (handler)

  The main handler function for the 'snap_geometry' tool, which snaps one Shapely geometry to another using a specified tolerance via shapely.ops.snap. Inputs are WKT strings, output includes the resulting WKT geometry.
  @gis_mcp.tool() def snap_geometry(geometry1: str, geometry2: str, tolerance: float) -> Dict[str, Any]: """ Snap one geometry to another using shapely.ops.snap. Args: geometry1: WKT string of the geometry to be snapped. geometry2: WKT string of the reference geometry. tolerance: Distance tolerance for snapping. Returns: Dictionary with status, message, and snapped geometry as WKT. """ try: from shapely import wkt from shapely.ops import snap geom1 = wkt.loads(geometry1) geom2 = wkt.loads(geometry2) snapped = snap(geom1, geom2, tolerance) return { "status": "success", "geometry": snapped.wkt, "message": "Geometry snapped successfully" } except Exception as e: logger.error(f"Error in snap_geometry: {str(e)}") return {"status": "error", "message": str(e)}
• src/gis_mcp/shapely_functions.py:486-486 (registration)

  The @gis_mcp.tool() decorator that registers the snap_geometry function as an MCP tool.
  @gis_mcp.tool()
• src/gis_mcp/shapely_functions.py:487-496 (schema)

  Function signature and docstring defining the input schema (geometry1: str WKT, geometry2: str WKT, tolerance: float) and output format.
  def snap_geometry(geometry1: str, geometry2: str, tolerance: float) -> Dict[str, Any]: """ Snap one geometry to another using shapely.ops.snap. Args: geometry1: WKT string of the geometry to be snapped. geometry2: WKT string of the reference geometry. tolerance: Distance tolerance for snapping. Returns: Dictionary with status, message, and snapped geometry as WKT. """
• src/gis_mcp/shapely_functions.py:87-87 (helper)

  Listing of 'snap_geometry' in the shapely_util operations resource for discovery.
  "snap_geometry",