Table of Contents
Georeferencing point cloud using Control points
Step by step
- Create or open a mapping resource containing a point cloud
- Local Catalog > right click on the mapping resources and choose to georeferenced the point > “Georeference resources”
- Under “Manage” choose > “Ground control points” > add the points (ovf/ovt format). Convert to ovf/ovt if needed > Optimize generic resource (vectors)
- Under “Tools” > “Georeference” > “Point Cloud” > “Preferences” > “3D Hover and Measurements”, select the appropriate snapping mode based on the terrain type:
- Point Cloud Closest Point: Recommended when the reference points are located on uneven or hilly terrain, where elevation variations are present.
- Point Cloud Flat Surface Intersection: Recommended when the reference points are placed on checkerboard targets or on flat surfaces such as pavement
- Under “Tools” > “Georeference” > “Point cloud” > click each reference point in the “Georeference Point cloud Tab” using “Measure New Resource”
- Choose a Method transformation > optimal for point cloud could be “Orthonormal XY”
- Save the transformation
- A new textfile with the georeference details will be made and saved under the same path as the location of the georeferenced > orbit_mapping_run.georeference.oxml. Deleting this file will delete the georeference.
- Under “Manage” choose > Consolidation to create a new georeferenced mapping resource