[AstroPy] X marks the spot

David Berry d.berry at jach.hawaii.edu
Tue Sep 10 15:57:21 EDT 2013


On 10 September 2013 20:27, Tim Jenness <tim.jenness at gmail.com> wrote:
>
>
>
> On Tue, Sep 10, 2013 at 3:11 PM, Demitri Muna <demitri.muna at gmail.com>
> wrote:
>>
>>
>>
>> If I have a FITS file and a coordinate, does anyone have a template piece
>> of code that would load the image, display it, and draw an x on the
>> coordinate(s) I provide?
>>
>
> pyast is designed for this. The Plot classes are specifically there to
> support what you are asking. You define a Plot and then a mapping from your
> world coordinates to the plot window. It goes both ways so supports the
> feedback of you getting an ra/dec from a position on the plot as well as
> putting markers and lines on the plot using ra/dec.

The only thing being that pyast only draws the graphics - it cannot
display an image itself (something else needs to have done that
first).

David



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