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https://issues.apache.org/jira/browse/GEOMETRY-7?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16539195#comment-16539195
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Gilles commented on GEOMETRY-7:
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As I've hinted before, because there are too many ways to get the API wrong, I
think that we should concentrate on the "Cartesian" side of things as that
seems to drive the core functionality.
Anything that is not released cannot hurt; so better defer adding bells and
whistles, especially if you don't use them or/and are not sure how to test them.
Some of the functionality could also be released under a
"o.a.c.geometry.experimental" package.
> Add Support for Polar and Spherical Coordinates
> -----------------------------------------------
>
> Key: GEOMETRY-7
> URL: https://issues.apache.org/jira/browse/GEOMETRY-7
> Project: Apache Commons Geometry
> Issue Type: New Feature
> Reporter: Matt Juntunen
> Priority: Major
>
> Add support for Polar coordinates in Euclidean 2D space and Spherical
> coordinates in Eucllidean 3D space. The coordinate classes should follow
> VALJO guidelines
> ([http://blog.joda.org/2014/03/valjos-value-java-objects.html]) and be
> directly convertible to and from the corresponding Point/Vector types. The
> API should look something like this:
>
> {code:java}
> Polar polar = Polar.of(1, Math.PI / 2);
> polar.getRadius(); // 1
> polar.getTheta(); // 2
> Vector2D vec = Vector2D.ofPolar(polar);
> // also possible: Vector2D.ofPolar(1, Math.PI / 2)
> // do stuff with vec
> Polar result = vec.getPolar();{code}
>
> For the Spherical component, the functionality should be merged with the
> existing o.a.c.geometry.spherical.SphericalCoordinates class.
>
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