convert this architectural section drawing into an exact 2d cad vector drawing critical do not redesign simplify or reinterpret the building trace the drawing exactly as shown the output must match the source drawing precisely in geometry proportions and layout general rules treat the image as a technical blueprint preserve every structural line maintain exact vertical alignment of floors preserve wall thickness and slab thickness reproduce all openings and internal walls exactly maintain the correct roof geometry keep the same number of floors and same spacing use the visible dimension references to maintain scale building structure to trace basement level ground floor 1st floor 2nd floor 3rd floor 4th floor 5th floor pitched roof dimensions total building height 24 2 m roof height as shown stair tower height 7 9 m trace all floor slabs walls columns staircases and roof lines exactly ignore graphic overlays ignore colors used for fire protection diagrams red lines yellow lines orange highlights legends logos text blocks only reconstruct the architectural structure drawing style pure vector cad linework black lines only no shading no colors no filled areas clean polylines layer structure create separate layers for walls slabs stairs openings roof output precise 2d cad geometry closed polylines where applicable correct scale suitable for sketchup import dxf or dwg format
