[Motmot] fview plugin drawing with ROI

Andrew Straw astraw at caltech.edu
Wed Dec 9 18:57:22 UTC 2009


John Bender wrote:
> I've got an fview plugin that returns a few points to be drawn on the
> image. When I use a hardware region of interest in the fview camera
> settings, the points are drawn on the fview window relative to the
> bottom of the window, not the bottom of my ROI. (E.g., I set "height"
> to 305 and "bottom" to 70, my plugin wants to draw a point at (50,50)
> relative to the ROI, fview should draw that point at (50,120) but
> actually draws it at (50,50).) Should I be adding the ROI offset to
> the points before returning them, or is this a bug in fview?
>   
Hi John,

Change the points before returning them. The process_frame() method 
takes a buf_offset argument that species the exact offset.

-Andrew

-- 
Andrew D. Straw, Ph.D.
California Institute of Technology
http://www.its.caltech.edu/~astraw/



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