>From: "Alliss, Randall J." <address@hidden> >Organization: TASC >Keywords: 200111021339.fA2Dde104851 McIDAS-X IMGCOPY IMGREMAP Randy, >I am not sure what you mean in 1) below. where does A/A.4001 come from? What I was trying to get across was that your goal is to create an image that has a certain areal coverage, and you want the projection to be rectilinear. So, your first job is to create an image in an AREA file that has the areal coverage that you want. How you do this is up to you, but one way would be to use the first IMGREMAP command that you sent me originally: IMGREMAP WESTL/CONUS A/A.4000 LAT=38 96 BAND=4 RES=10 PRO=RECT TIME=13:30 DAY=2001305 Create this image and put a map on top of it. Is the spatial extent what you are looking for? If so, you are done. If not, you can increase the areal coverage by making the output image size bigger (using the SIZE= keyword). My example postulated that you may want the output image to be 1024x1280 in size. Now that I am in my office, I am able to run through the commands that I recommend you try and verify that there are not typos, etc. Try the following (easiest done by cutting and pasting into a McIDAS BATCH file): REM Create an image with the desired areal coverage and projection from a REM GOES-West image SF 1 ERASE IMGREMAP WESTL/CONUS A/A.4000 LAT=38 96 BAND=4 RES=10 PRO=RECT SIZE=1024 1280 SSIZE=ALL TIME=15:00 DAY=2001306 IMGDISP A/A.4000 MAG=-2 EU=IMAGE MAP SAT REM Make a copy of the right half of the above image into an new AREA SF 2 ERASE IMGCOPY A/A.4000 A/A.4001 LINELE=0 640 SIZE=1024 640 IMGDISP A/A.4001 LINELE=0 -640 MAG=-2 EU=IMAGE MAP SAT REM Remap a GOES-East image from about the same time as the GOES-West image REM into the right hand half created in the last step SF 3 ERASE IMGREMAP EASTL/CONUS A/A.4001 SSIZE=ALL BAND=4 TIME=15:15 DAY=2001306 IMGDISP A/A.4001 LINELE=0 -640 MAG=-2 EU=IMAGE MAP SAT REM Merge the rectilinear copy of the original GOES-West image with the REM remapped copy of the GOES-East image. This remap will lay the REM GOES-East remapped half on top of the GOES-West remap. The effect REM will be use of GOES-East data east of 98 W longitude, and GOES-West REM data west of 98 W longitude SF 4 ERASE IMGCOPY A/A.4000 A/A.4002 SIZE=ALL IMGREMAP A/A.4001 A/A.4002 SSIZE=ALL MERGE=YES IMGDISP A/A.4002 MAG=-2 EU=IMAGE MAP SAT REM Animate the various steps in the remap/composite process LB 1 4 DR 4*20 TERM L ON Tom
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