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https://issues.apache.org/jira/browse/GEOMETRY-94?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17093871#comment-17093871
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Matt Juntunen commented on GEOMETRY-94:
---------------------------------------

bq. What do you mean by "alias"?

I was picturing having the factory methods in the convenience class call 
factory methods in the implementation classes. For example 
{{LineSubsets.rayFromPointAndDirection}} would just call 
{{Ray.fromPointAndDirection}} internally. The other option would be to remove 
the factory methods from the specific subclasses and only expose them through 
{{LineSubsets}}.

> ConvexSubPlane Subclasses
> -------------------------
>
>                 Key: GEOMETRY-94
>                 URL: https://issues.apache.org/jira/browse/GEOMETRY-94
>             Project: Apache Commons Geometry
>          Issue Type: New Feature
>            Reporter: Matt Juntunen
>            Priority: Major
>              Labels: beta1
>
> There should be specific subclasses of {{ConvexSubPlane}} to allow for 
> optimization and ease of use.
>  - {{OpenConvexSubPlane}} - extends {{ConvexSubPlane}}; represents a convex 
> subplane that is open on a least one side and has infinite size
>  - {{ClosedConvexSubPlane}} - extends {{ConvexSubPlane}}; represents a convex 
> subplane with finite size; the 2D subspace is a polygon
>  - {{Triangle3D}} - extends {{ClosedConvexSubPlane}}; represents a triangle 
> in 3D space; most 3D models are or can easily be represented with triangles 
> so it would be good to have a dedicated class for this.



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