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From "Luc Maisonobe (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-780) BSPTree class and recovery of a Euclidean 3D BRep
Date Fri, 20 Apr 2012 18:16:40 GMT

    [ https://issues.apache.org/jira/browse/MATH-780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258440#comment-13258440
] 

Luc Maisonobe commented on MATH-780:
------------------------------------

Hi Andrew,

The file BSPMesh2.java you attached to the issue is not sufficient to reproduce the error.
It refers to a BSPMesh class and to a PolygonOfPoints class. It seems changing BSPMesh to
BSPMesh2 is sufficient to solver the references in the main method (but I am not sure this
class is a drop-in replacement for your issue), but I have no clue about the other class.
Could you attach it to the issue too ?
                
> BSPTree class and recovery of a Euclidean 3D BRep
> -------------------------------------------------
>
>                 Key: MATH-780
>                 URL: https://issues.apache.org/jira/browse/MATH-780
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.0
>         Environment: Linux
>            Reporter: Andrew Willis
>              Labels: BSPTree, euclidean.threed
>         Attachments: BSPMesh2.java
>
>
> New to the work here. Thanks for your efforts on this code.
> I create a BSPTree from a BoundaryRep (Brep) my test Brep is a cube as represented by
a float array containing 8 3D points in(x,y,z) order and an array of indices (12 triplets
for the 12 faces of the cube). I construct a BSPMesh() as shown in the code below. I can construct
the PolyhedronsSet() but have problems extracting the faces from the BSPTree to reconstruct
the BRep. The attached code (BSPMesh2.java) shows that a small change to 1 of the vertex positions
causes/corrects the problem.
> Any ideas?

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