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Mathieu Brédif 2016-03-09 16:38:39 +01:00
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@ -447,6 +447,10 @@ Now that you have created two tables, you'll see entries for them in the `pointc
> - sigbits -- significant bits removal
> - rle -- run-length encoding
**PC_PointN(p pcpatch, n int4)** returns **pcpoint**
> Returns the n-th point of the patch with 1-based indexing. Negative n counts point from the end.
## PostGIS Integration ##
The `pointcloud_postgis` extension adds functions that allow you to use PostgreSQL Pointcloud with PostGIS, converting PcPoint and PcPatch to Geometry and doing spatial filtering on point cloud data. The `pointcloud_postgis` extension depends on both the `postgis` and `pointcloud` extensions, so they must be installed first: