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It would be nice if we could more easily create an accurate topographic surface in Revit from a linked ReCAP file. Even if it just being able to export a TXT or CSV file from ReCAP of a scan region or an edited cloud. I find it is much easier to manipulate and edit the point cloud in ReCAP than some other native registration softwares.
1. Crop your scan data in Recap until you have only the data you want to turn into topography i.e. ground only.
2. Export from Recap as a PTS or E57 file.
3. Import into the very useful program CloudCompare. Sub-sample your point cloud so you have a reasonable density of points i.e. maybe one data point per metre, if you want really accurate topography.
4. Save your point cloud as a comma-delimited CSV file as required by Autodesk Revit.
5. Then, use the Toposurface tool in Revit to automatically create topography from your CSV file.
