I'm trying to batch some processing. What I need to do is compute a 3d
difference field, display it at a fixed contour level, then save it as jpeg.
I'm using a time sequence of GRIB files.
Everything is working fine, except the contour level changes for each step.
Here's what I did:
Loaded GRIB data for one of the times. Set the projection, view, etc. I also set
the parameter range and contour value. I saved this in an xidv file. Now I want a
similar output for the remaining GRIB times. So, I use 'sed' to change the filename
in the xidv file. As my script loops through the times, the range & contour
changes automatically. Any suggestions on keeping those values fixed?