Georeference a ZEB Pointcloud Using GeoSLAM Draw
Overview
This article explains how to use these in GeoSLAM Draw to georeference a pointcloud.
Procedure
- Load a Draw project from GeoSLAM Hub and check the coordinate system. It should be local:
- Load the reference base points:
- Verify that the refence base points are valid, and that the column assignment is correct - X has X values, Y has Y values and Z has Z values:
- Check if the reference base points are placed correctly in the 3D point cloud model.
- Import the control points e.g. GNSS coordinates:
- Browse to the directory where you have stored the Control Points as you can see below.
- Import the Control Points and check if the columns are set correctly i.e. X to X coordinates, Y to Y values and Z to Z values:
- Make sure you have set the coordinates accordingly as they are depicted below and find the constellation to calculate the RMS.
- To accept the results click on the apply the transformation to position the model in the geodetic system you would like to. You may double check the coordinates as they are shown in the screenshot below – on the top right-hand side:
