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20050730: how to increase radar data dot size, radar projections

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  • Subject: 20050730: how to increase radar data dot size, radar projections
  • Date: Sat, 30 Jul 2005 21:57:19 -0600 (MDT)
Chris,

The NIDS data is 1km resolution. If you want to see a feature closer-up,
you can zoom in using the "cursor garea" command to rubberband box
and area and then re-run your image, or use a garea with lat/lon
bounds.

Imagery (sat or rad) is displayed in the projection of the data itself.
The only options would be to use nex2gini or gdradr to convert to a different
projection.

Steve Chiswell
Unidata User Support



On Sat, 30 Jul 2005, Christopher McIntyre wrote:

> Hi Gembuds,
>
>
>
> Two quick questions.I couldn't find a reference to these in the user manuals
> or online archives.
>
>
>
> We are running gempak and using the gpmap function to plot n0r 0.5 degree
> scan national composite radar images. However, we find that the data dot
> size is too small, so we tried increasing the output device size from
> 640x480 to 1024x768 and even to 2048x1536. But alas, the data dot size
> remains the same not matter what the size of the output image.
>
>
>
> 1) Is there any way to increase the size of the radar dots so that each echo
> is represented by a 4x4 pixel box instead of the current 1x1 pixel box?
>
>
>
> 2) Also, is there any way to modify the projection (to LEA for example) when
> plotting radar data?  If we use any projection other than "rad", the result
> is always a blank black image.
>
>
>
> Thanks,
>
> Chris
>
>
>
> ---------------------------------
>
> Christopher McIntyre
>
> address@hidden
>
>
>
>