| Problem | Likely Cause | Solution | |---------|--------------|----------| | Drawing appears near 0°N, 0°E | No CRS assigned or wrong CRS | Assign correct projected CRS → re-export with transformation | | Objects floating above/below ground | Elevation mode mismatch | Use "clamped to ground" for 2D, or check absolute altitudes | | Text missing or garbled | AutoCAD text entities not supported | Convert text to polylines ( TXEXP command) or points with labels | | Google Earth crashes on import | Too many vertices or complex 3D faces | Simplify geometry, use KMZ compression | | Incorrect rotation / scale | Drawing units not matching CRS units | Ensure drawing units (meters/feet) match the CRS’s unit |
| Elevation Mode | Behavior in Google Earth | |----------------|--------------------------| | | Geometry follows terrain (good for 2D site plans) | | Absolute | Geometry floats at specified altitude above ellipsoid (good for building heights, bridges) | | Relative to ground | Height added above terrain (e.g., 10m above ground) | autocad google earth import
Set via KML <altitudeMode> during export. In AutoCAD Map 3D, use object elevation as absolute altitude. | Problem | Likely Cause | Solution |