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No classification codes to identify overlap points

By NGP Standards and Specifications

This revision is a minor language correction to close a potential loop-hole related to overlap bit-flag usage.

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Status of this revision: Published in Lidar Base Specification 2022 rev. A

Background

This revision is related to the overlap bit flag revision included in LBS 2021 rev. A. With that revision, use of the overlap bit flag is restricted and it is not to be used for collections intended for 3DEP data holdings. A requirement related to classification codes includes a potential loop-hole for a classification code to be used for identifying overlap points. This revision clarifies the language. 

Past requirement:

  • No classification code may be used to identify points as overlap points.  

Approved change:

  • Classification codes shall not be used in lieu of the overlap bit flag to identify overlap points.