[AstroPy] point in ellipse

Tim Jenness tim.jenness@gmail....
Wed Jan 30 12:47:52 CST 2013


[now replying to list]

You can use the Region class in pyast for that (it's not part of astropy).
It has support for all the STC regions.

 https://github.com/timj/starlink-pyast

AST is the library used internally by DS9.

-- 
Tim Jenness


On Wed, Jan 30, 2013 at 11:33 AM, gonghang.naoc <ghang.naoc@gmail.com>wrote:

> hi,everybody,
>      I believe many people here use ds9 and know  its region file
> format.For example,we can make an ellipse if we know its center ra,dec and
> main aixs direction.Is there a pythonic way to judge whether a point is in
> an ellipse if we know ra&dec of the point?
>      Thank you.
>      Best wishes.
>      Hang
>
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