Support LAS - Githubissues

keplergl / kepler.gl

Kepler.gl is a powerful open source geospatial analysis tool for large-scale data sets.

http://kepler.gl

MIT License

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Support LAS #471

Open brockelmore opened 5 years ago

brockelmore commented 5 years ago

ASPRS LAS support would be a great addition as LiDAR data become more prominent

ibgreen commented 5 years ago

Just adding some info:

loaders.gl includes a generic las loader module designed to work seamless with deck.gl and luma.gl.
The main disadvantage of the current las parser implementation is that it is based on transpiled C code and has a quite large bundle size footprint ~700k.
That may be too much for kepler.gl to take on to support just one format.
Some size optimization should probably be done in loaders.gl before including it.

heshan0131 commented 5 years ago

Looks like las loader directly parse it into deck.gl attributes. This will not easily work with kepler.gl work flow, since we accept data as tabular arrays, then filtering, visual encoding based on user interaction

ibgreen commented 5 years ago

deck.gl v7 has support for doing "classic iteration" over columnar binary tables, we could investigate if that could work for kepler.

The iterator yields "row" objects that looks like they are "rows" (i.e. JS object) in a classic row-major table.

Worst case one could always do a data transform on the LAS loader output and generate a classic array.

macrigiuseppe commented 5 years ago

We will look into this after upgrading kepler to deck.gl v7

SoheilSalehian commented 3 years ago

Hi @macrigiuseppe and @heshan0131: thank you for all the awesome support and software here. Is LAS support still being developed? If not what's needed?