>From: "Robert Mullenax" <address@hidden> >Organization: NMSU/NSBF >Keywords: 200208212137.g7LLboK23488 McIDAS-X v2002 IMGFILT NEXRCOMP Robert, I will set aside some time to look at the problem you are seeing, but it will have to wait for a couple of days. I can answer your last question here, however: >Why the difference in the Unidata 6K and 1K? The 1K product is in GINI format, so accessing it goes through the GINI ADDE server where I added code to synthesize a CAL block. The 6K image, on the other hand, is an AREA created from a GRID. I thought I added an AUX block to this image using PRDUTIL, but I may not be remembering exactly what I did correctly. I will run through the tests you have indicated to see what I can see. >I am having problems using the FILTER.BAT batch file that >we put together at the Unidata McIDAS session. Just to refresh >your memory, it's purpose is to mask out echos with tops >5kft or less using IMGFILT. I made a 1KM NET composite using >nex2gini and a 1km N0R composite and then modified the script >appropriately. Below is the original test script using >N0R data to filter itself: > >REM First make a local copy of an input image >IMGCOPY NEXRCOMP/6KN0R-NAT MYDATA/IMAGES.2000 SIZE=ALL >IMGDISP MYDATA/IMAGES.2000 14 EU=BREF24 SF=YES > >REM Next, create a filter mask from the input file >IMGFILT MYDATA/IMAGES.2000 MYDATA/IMAGES.2000 MYDATA/IMAGES.3000 >FILTER=CORE 110 110 255 0 SIZE=ALL >IMGDISP MYDATA/IMAGES.3000 15 EU=IMAGE SF=YES > >REM Finally, mask an image with the filter just created >IMGFILT NEXRCOMP/6KN0R-NAT MYDATA/IMAGES.3000 MYDATA/IMAGES.3001 FILTER=DIS >0 255 1 255 0 SIZE=ALL >IMGDISP MYDATA/IMAGES.3001 16 EU=BREF24 SF=YES > >When I try to use the script using either 1km N0R composite >I get from Unidata (through ADDE) or one I make myself, the >last IMGFILT command exits with this error: >IMGFILT: Cal not present > >You can test this for yourself by taking the above script >and changing 6KN0R to 1KN0R. > >If I do an IMGLIST on the two I do see a difference in the cal: > >IMGLIST NEXRCOMP/6KN0R-NAT FORM=EXP .. shows calibration=768 >and >IMGLIST NEXRCOMP/1KN0R-NAT FORM=EXP ..shows calibation=0 > >Do I need to use IMGCHA in some manner after I create my >1KM nex2gini composite? Why the difference in the Unidata 6K >and 1K? > >Thanks, >Robert Tom
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