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https://issues.apache.org/jira/browse/GEOMETRY-94?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17087063#comment-17087063
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Matt Juntunen commented on GEOMETRY-94:
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{quote}when evoking "plane", what comes to my mind is something infinite;
{quote}
Yes, but the key portion in the class name is "sub", meaning a subset of the
points in the plane. This subset may be infinite or finite.
{quote}"{{ConvexSubPlane}}" seems to allow referring to a finite area (as per
the instance field).
{quote}
Yes, it may be finite or infinite. This is documented in the class.
{quote}This is confusing IMHO and, as for GEOMETRY-92, it would be cleaner if
we could use some nested classes in order to stress relationships.
{quote}
I disagree, as mentioned in the other ticket.
{quote}It would be interesting to know whether this usage has been retained in
more recent accounts of the subject.
{quote}
Yes. I have not been able to find a more thorough treatment of the subject than
the Naylor paper I referenced above. The paper you mentioned recently in the
dev mailing list
([https://pdfs.semanticscholar.org/eeb5/014f86750c54a87f214b03246799e970d114.pdf)]
uses only triangles.
> 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
>
> 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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