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https://issues.apache.org/jira/browse/GEOMETRY-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013155#comment-17013155
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Baljit Singh edited comment on GEOMETRY-71 at 1/10/20 7:26 PM:
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[~mattjuntunen]
There is paper that has the equation centroid equation:
https://asmedigitalcollection.asme.org/appliedmechanics/article/42/1/239/387501/The-Inertia-Tensor-for-a-Spherical-Triangle
They actually also reference the [the
paper|https://calhoun.nps.edu/handle/10945/29748] you mentioned.
was (Author: balsingh):
[~mattjuntunen] There is paper that has the equation centroid equation:
https://asmedigitalcollection.asme.org/appliedmechanics/article/42/1/239/387501/The-Inertia-Tensor-for-a-Spherical-Triangle
> Investigate Spherical Barycenter Accuracy
> -----------------------------------------
>
> Key: GEOMETRY-71
> URL: https://issues.apache.org/jira/browse/GEOMETRY-71
> Project: Apache Commons Geometry
> Issue Type: Bug
> Reporter: Matt Juntunen
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The current code for computing spherical barycenters in
> {{ConvexArea2S.getBarycenter()}} seems to suffer from floating point accuracy
> issues. The {{ConvexArea2STest.checkBarycenterConsistency()}} method checks
> the consistency of the barycenter computation of a region by splitting the
> region into two sections, computing the area and barycenter of each section,
> and then computing the combined barycenter of the sections by adding the
> barycenter of each scaled by its corresponding area. It is expected that the
> combined barycenter computed in this way should equal the barycenter computed
> for the region as a whole. However, in practice, a large epsilon value is
> needed in the comparison in order for the tests to pass. We need to
> investigate why this is the case.
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