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Description: API function and CLI tool to create STAC Items from pointclouds. We're using PDAL, which will enable us to (eventually) support formats other than la{s|z}. However, right now the STAC item is built from fields from the las header, so other formats are explicitly denied for now.
Another option to get network-aware las reading is to dig through the other Python las implementations and see if one is good with networks (or write Yet Another Las Header Reader)
This code lives in Entwine. We could put it to the preview() method of PDAL I suppose. Let's not write another Python LAS library 😄
cholmes
linked an issue
Mar 18, 2021
that may be
closed
by this pull request
Adds `stactools.pointcloud.create_item`, which takes a single `href`
and creates a STAC item. Also adds a command line tool to execute.
Design decisions:
- By default, only read the header of the file (as best as we can).
An argument, `calculate_statistics`, can optionally instruct
`create_item` to read the entire file and calculate statistics.
- Uses [PDAL](https://pdal.io) to read the file, which in theory
will enable building STAC items from other flavors of pointcloud
(anything readable by PDAL). We can't just drop in any file right
away, though, because we use LAS header values to build the item.
Support for other pointcloud formats will require writing some sort
of converter from format-specific metadata values to STAC values.
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gadomski
changed the title
Related issue(s): #44
Description: API function and CLI tool to create STAC Items from pointclouds. We're using PDAL, which will enable us to (eventually) support formats other than la{s|z}. However, right now the STAC item is built from fields from the las header, so other formats are explicitly denied for now.