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Add External Standards VLR #147

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esilvia opened this issue Apr 4, 2024 · 2 comments
Open

Add External Standards VLR #147

esilvia opened this issue Apr 4, 2024 · 2 comments
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@esilvia
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esilvia commented Apr 4, 2024

What is the issue about?

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Issue description

There is currently no standard methodology for recording which LDP or other non standards the LAS file is meant to conform to.

Some possible standards that matter:

  1. LAS revision
  2. LAS Domain Profile (topobathy v1, topobathy v2, transmission lines, etc)
  3. ASPRS 2014
  4. ASPRS 2023 v1, v2, etc
  5. USGS LDP v____

Standardizing these with a lookup table would require constant maintenance. Perhaps the best solution would be for the VLR content to be a null-terminated array of URLs? Or maybe LAS wiki page names to err on the safe side?

@esilvia esilvia added this to the v1.5 milestone Apr 4, 2024
@kjwaters
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I think an array that contained both a common (but not necessarily standardized) name and a URL would be good. Is there a common pattern for putting an array of strings in a VLR or EVLR?

@esilvia
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esilvia commented Sep 19, 2024

Discussed today in the LWG call (9/19/2024). The overriding sentiment is that we should keep the spec itself as minimal as possible. This probably belongs in the wiki: https://github.com/ASPRSorg/LAS/wiki/User-Contributed-VLRs

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