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https://issues.apache.org/jira/browse/GEOMETRY-59?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16890596#comment-16890596
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Matt Juntunen commented on GEOMETRY-59:
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[~bonastos], I took a look at your PR and I feel like your approach is 
definitely superior. It's simpler, more intuitive, and has a solid mathematical 
basis. However, my implementation has the benefits of being more widely 
applicable (since it's a public, static method of Plane), being able to handle 
collinear points, and validating that all input points lie on the computed 
plane. So, I'm thinking we take my new {{Plane.fromPoints}} overload and 
replace the plane orientation algorithm with yours. I think we could make that 
work in a single pass through the point collection. Thoughts?

> unexpected output from PolyhedronsSet::checkPoint
> -------------------------------------------------
>
>                 Key: GEOMETRY-59
>                 URL: https://issues.apache.org/jira/browse/GEOMETRY-59
>             Project: Apache Commons Geometry
>          Issue Type: Bug
>          Components: Euclidean 3D
>            Reporter: Dirk Bonekämper
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: InsideProblemTest.java
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> In my project I'm working with 3D Regions modeled as prisms. The base 
> polygons are mostly concave. I got wrong results and boiled it down to the 
> attached unit test. It creates a prism with a concave base. A point that is 
> above the prism gets classified as INSIDE.



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