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QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
http://qgis.org
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measurement tools for Mars #3324

Closed qissue-bot closed 5 years ago

qissue-bot commented 5 years ago

Author Name: pacifici - (pacifici -) Original Redmine Issue: 3336, https://issues.qgis.org/issues/3336

Original Assignee: Sergey Yakushev

The measurement tools of Qgis allow to choose among several terrestrial ellipsoids. Unfortunately, in the case of use of data referable to different planets (Mars, in my case) it'is impossible to perform measurements since it'is impossible to choose the Martian ellipsoid (Martian ellipsoid axes are about 0,5 time the terrestrial ones). I would to like to suggest the possibility of choose a Martian ellipsoid. Otherwise, even the possibility of manually enter a new ellipsoid could be interesting, maybe using +proj4 rules.

qissue-bot commented 5 years ago

Original Redmine Comment Author Name: Paolo Cavallini (Paolo Cavallini) Original Date: 2010-12-14T07:41:57.000Z

Looks an easy addition.

qissue-bot commented 5 years ago

Original Redmine Comment Author Name: Magnus Homann (Magnus Homann) Original Date: 2012-09-01T22:17:23.000Z

When working with Mars, what is the layer CRS set to? A custom CRS

qissue-bot commented 5 years ago

Original Redmine Comment Author Name: Magnus Homann (Magnus Homann) Original Date: 2012-09-05T21:13:39.000Z

You can now specify the ellipsod with custom parameters. The project projection should match.

qissue-bot commented 5 years ago

Original Redmine Comment Author Name: Andrea Pacifici (Andrea Pacifici) Original Date: 2012-09-12T04:03:08.000Z

Great!!! Thank you Magnus, your patch is perfect! From now, planetary geology is finally totally free from non open-source software.