| Problem | Cause | Solution | |---------|-------|----------| | | Coordinates are lat/lon (degrees), but AutoCAD expects meters/feet. | Use Map 3D to assign WGS84 input and project output. Or scale by factor ~111,319 (meters per degree at equator) – but not accurate globally. | | Polygons disappear | AutoCAD closed polyline orientation or complex self-intersections. | Run MAPCLEAN (Map 3D) or use OVERKILL / PEDIT . | | Missing attributes | Vanilla AutoCAD ignores KML’s ExtendedData. | Use Map 3D’s Object Data or export to SHP first. | | Performance slow | Too many vertices or features. | Simplify geometry in QGIS (Vector → Geometry Tools → Simplify). | | Holes in polygons become filled | KML inner rings not supported directly. | In Map 3D, enable “Create polygons with holes”. Otherwise, manually subtract inner boundaries. |
AutoCAD is a powerful computer-aided design (CAD) software that allows users to create, edit, and manage 2D and 3D models. Google Earth and other geographic information systems (GIS) often use Keyhole Markup Language (KML) files to store and share geospatial data. If you're an AutoCAD user looking to import KML files into your project, this guide will walk you through the process. kml autocad import
| Task | Command / Tool | |------|----------------| | Import KML directly | MAPIMPORT (Map 3D/Civil 3D only) | | Set drawing units | UNITS | | Set coordinate system (Map 3D) | MAPCSASSIGN | | Clean up duplicate geometry | OVERKILL | | Join polylines | PEDIT → Join | | Convert lat/lon text to points | _MAPPOINTFROMTEXT (Map 3D) | | | Polygons disappear | AutoCAD closed polyline
AutoCAD is a powerful computer-aided design (CAD) software that is widely used in various industries, including architecture, engineering, and construction. One of the key features of AutoCAD is its ability to import and export various file formats, including KML (Keyhole Markup Language) files. KML files are used to display geographic data in an Earth browser such as Google Earth. In this review, we will discuss the process of importing KML files into AutoCAD, the benefits and limitations of this feature, and some potential applications. | Use Map 3D’s Object Data or export to SHP first