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https://github.com/verma/plasio

Drag-n-drop In-browser LAS/LAZ point cloud viewer. http://plas.io
https://github.com/verma/plasio

las laz pointcloud threejs viewer webgl

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Drag-n-drop In-browser LAS/LAZ point cloud viewer. http://plas.io

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README 

        
plasio

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plasio is a project by `Uday Verma`_ and `Howard Butler`_ that implements point

cloud rendering capability in a browser. Specifically, it provides a functional

implementation of the `ASPRS LAS`_ format, and it can consume

`LASzip`_-compressed data using LASzip `NaCl`_ module. Plasio is `Chrome`_-only at

this time, but it is hoped that other contributors can step forward to bring it

to other browsers. 



It is expected that most WebGL-capable browers should be 

able to support plasio, and it contains nothing that is explicitly Chrome-specific beyond the optional NaCL LASzip module. We just haven't tested it beyond `Mac and Windows Chrome Canary`_ at this time.



Demo

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http://plas.io contains a demo of the interface and supports both LAS and LAZ.



FAQ

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What does the name plasio mean?

    

    Nothing.



What are future plans for the software?

    

    We hope that plasio provides a significant enough capability that others 

    start to contribute exploitation and visualization flourishes.



When will it support X, Y, or Z?

    

    The software is its formative stages at this point, and pull 

    requests that provide new capabilities or fix signficant issues 

    are going to be the most persuasive way to impact its future 

    development.



Developers

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Plasio uses the Gulp_ build system::



    npm install -g gulp



To setup the development environment, you can run::



    npm install

    

This will download all dependencies required to setup the build system.

    

You can then build and stage files under the ``build`` directory by running::



    gulp

    

While developing, you may run::

    

    gulp develop

    

This will serve built files locally and open your default browser pointing to the index page.  Any changes you make to

source files will fire gulp tasks that will keep the ``build`` directory up to date. The build system also uses

gulp's live-reload plugin, which works great with `Google Chrome's Live Reload`_ extension.



The gulp file includes a task to publish directly to plas.io, however, you need AWS Access for that to work. You may direct plasio

to your own AWS buckets, in which case you will have to edit ``gulpfile.js`` to direct it likewise.



The publish task looks for ``~/.aws.json`` which should include two fields, ``key`` and ``secret``.



To publish to AWS simply run::



    gulp publish



Credits

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- Blue Marker Icon from `Function Icons`_ By `Liam McKay`_

- High precision GPU point picking wouldn't have been possible without the `Work done here`_.

- `Carlos Scheidegger`_ for GPU float to bytes conversion.



License

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The software is licensed under the permissive `MIT`_ license.



.. _`Howard Butler`: http://github.com/hobu

.. _`Uday Verma`: http://github.com/verma

.. _`Mazira`: http://www.mazira.com

.. _`ASPRS LAS`: http://www.asprs.org/Committee-General/LASer-LAS-File-Format-Exchange-Activities.html

.. _`Chrome`: https://www.google.com/intl/en/chrome/browser/

.. _`LASzip`: http://laszip.org

.. _`NaCl`: https://developers.google.com/native-client/dev/

.. _`MIT`: http://opensource.org/licenses/MIT

.. _`Mac and Windows Chrome Canary`: https://www.google.com/intl/en/chrome/browser/canary.html

.. _`Gulp`: http://gulpjs.com/

.. _`Google Chrome's Live Reload`: https://chrome.google.com/webstore/detail/livereload/jnihajbhpnppcggbcgedagnkighmdlei?hl=en

.. _`Function Icons`: https://www.iconfinder.com/search/?q=iconset:function_icon_set

.. _`Liam McKay`: http://wefunction.com/contact/

.. _`Work done here`: http://concord-consortium.github.io/lab/experiments/webgl-gpgpu/webgl.html

.. _`Carlos Scheidegger`: http://www.khronos.org/webgl/public-mailing-list/archives/1206/msg00233.html