[Proj] rHEALPix bug & bug fix

Frank Warmerdam warmerdam at pobox.com
Mon Jun 11 16:43:13 EST 2012


Will you be filing a bug in Trac?

Best regards,

On Mon, Jun 11, 2012 at 2:20 PM, Michael Speth
<spethm at landcareresearch.co.nz> wrote:
> Greetings,
>    We have discovered a bug in the rHEALPix projection that causes lon/lat's
> in the polar regions to be incorrectly projected if the polar regions are
> shifted.  I have written detailed documentation on the bug, so please
> reference this for more information.  I have created a patch that fixes the
> bug as well as provides the test plan and supporting source.  I have also
> made available the binaries for running the tests for the HEALPix and
> rHEALPix projections (64-bit).  To test the bug, I've included the source to
> a standalone C application with an included script that should compile on a
> 32-bit or 64-bit system.
> Links
> Patch:
> https://df.bestgrid.org/quickshare/cae33e5e7caf3955/combine_caps_bug-2012-06-06.patch
> Bug Documentation:
> https://df.bestgrid.org/quickshare/5c677519931baa0e/SCENZ-CombineCaps-2012-06-07.pdf
> Testing Documentation:
> https://df.bestgrid.org/quickshare/d6b285865b34db70/SCENZ-ProjectionTests-2012-06-07.pdf
> Test Binaries:
> https://df.bestgrid.org/quickshare/7364e5e560b6d60d/jproj4-test.tar.bz2
> Test Source:
> https://df.bestgrid.org/quickshare/3ad729a5bf29e17a/jproj4-test-src.tar.bz2
> Please let me know if there are any questions or problems.  What is the
> process for adding bug fixes to the main line?
> --
> Michael Speth
> Research Systems Developer
> Landcare Research
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Software Developer

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