[QGIS-Developer] [Qgis-user] New Features in Shape Tools 3.2.0

Nyall Dawson nyall.dawson at gmail.com
Mon Sep 24 16:25:21 PDT 2018


On Tue, 25 Sep 2018 at 06:49, C Hamilton <adenaculture at gmail.com> wrote:
>
> Nyall,
>
> Thanks for your confidence and encouragement. I would be interested, but don't know where to begin. Shape Tools relies on geographiclib which is slightly more accurate than Vincinty. Geographlib is not a library that is included with the OSGeo distribution. However, as of the past several years Proj.4 makes use of geographiclib. I am guessing QGIS has not exposed any of proj.4's geographiclib routines and I don't know how much of geographiclib Proj.4 actually uses. Including geographiclib could open up future opportunities of using some of the Earth's gravity models which are even more accurate for measuring distances. Using the C++ geographiclib libraries in the QGIS core would be faster than python only code.
>
> For me to even begin, I need geographiclib as part of the QGIS core. If there is a path to accomplish this, then we can discuss further details on what and how to migrate Shape Tools functionality into core.

That should be relatively straightforward. I can do this after 3.4 is
released and feature freeze is lifted. Remind me after this :)

Nyall

>
> Calvin
>
>> > If you have any suggestions I would welcome them.
>>
>> Shape Tools is fantastic, and plugs a much needed gap in QGIS core
>> functionality. Lovely work!
>>
>> Can I strongly encourage you to investigate porting some of these
>> features/fixes over to QGIS core? You've obviously got the talent and
>> knowledge to do so, and it'd be great to offer this functionality
>> out-of-the-box. I'm available for mentoring if you need assistance
>> with QGIS core development/build setup/general c++ help!
>>
>> Nyall
>
>


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