import ezdxf def dwg_to_pat(dwg_file, tile_width, tile_height): doc = ezdxf.readfile(dwg_file) msp = doc.modelspace() pat_lines = []

for entity in msp: if entity.dxftype() == 'LINE': # Normalize coordinates to tile x1, y1 = entity.dxf.start.x % tile_width, entity.dxf.start.y % tile_height x2, y2 = entity.dxf.end.x % tile_width, entity.dxf.end.y % tile_height angle = math.degrees(math.atan2(y2 - y1, x2 - x1)) pat_lines.append(f"angle, x1, y1, tile_width, 0, x2 - x1, y2 - y1") return "\n".join(pat_lines)

DWG is a proprietary binary file format for 2D/3D vector graphics. PAT is a plain-text ASCII file defining a tile-based hatch pattern.