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https://issues.apache.org/jira/browse/GEOMETRY-32?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16981171#comment-16981171
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Matt Juntunen commented on GEOMETRY-32:
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bq. Isn't it possible to increase the number of allowed parameters?

It is, but I think we still want the project as a whole to follow the current 
max parameter number. Each exception to that rule should be called out 
explicitly.

bq. Note: Javadoc for the linearCombination methods needs fixing

Good call. Fixed.

bq. we should definitely use MathJax

Sounds good. I've never used that before. I recommend that as another follow-up 
issue.

bq. What about e.g. FieldVector3D?

Oh, yeah. I didn't go far enough back:-) None of the field-related classes made 
it over in the initial creation of commons-geometry because it would have 
required a dependency back to commons-math for the {{Field}} functionality.


> BSPTree Updates
> ---------------
>
>                 Key: GEOMETRY-32
>                 URL: https://issues.apache.org/jira/browse/GEOMETRY-32
>             Project: Apache Commons Geometry
>          Issue Type: Improvement
>          Components: core
>            Reporter: Matt Juntunen
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> The following updates should be made to the BSPTree class:
> - add an {{isLeaf()}} method to replace all of the {{node.getCut() == null}} 
> expressions
> - add unit tests
> _Edit [2019-02-17]:_
> Additional goals:
> - Refactor the API to split the idea of a general BSPTree and a BSPTree used 
> for defining in/out regions. This could result in a BSPTree interface and a 
> RegionBSPTree interface. The goal here is to allow end-users to create their 
> own extensions of these classes and specialize them for their own 
> applications (for example, to implement spatial sorting or other algorithms). 
> This will be one of the only planned extension points in the library.
> - Make the API easier to use and extend and reduce the necessity of casting 
> (especially unchecked casting) as much as possible.
> - Add the idea of convex subhyperplanes to allow for more efficient tree 
> construction.



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