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Hello, I'm trying to find a way to use mcidas to combine 2 or more satellite images from different satellites and display them on the same frame. I used IMGREMAP with MERGE=YES but it just seems to overlap one image on the frame with the other. I wanted something that would use the best (lowest) satellite viewing angle when deciding which part of the 2+ images are displayed. Doug S - NASA-Langley - -- - -------------------------------------------------------------------- SPANGENBERG, DOUGLAS A address@hidden One Enterprise Parkway ANALYTICAL SERVICES & MATERIALS, INC. Suite 300 Assigned to Radiation and Aerosols Branch Hampton, VA 23666 of NASA-Langley Research Center Phone: 757 827-4647 Fax: 757 825-8659 - -------------------------------------------------------------------- >From: Russ Dengel <address@hidden> >Date: Mon, 22 Oct 2001 13:34:35 -0500 >Organization: SSEC >To: Douglas Spangenberg <address@hidden> >Subject: Re: [mdf] Combining Images Doug, I just talked to Dave Santek about this. Dave may have a source for an application which does this. He was just headed to a class so he won't be able to get back to you for a while. Russ >From: Rick Kohrs <address@hidden> >Date: Mon, 22 Oct 2001 13:37:22 -0500 >To: Douglas Spangenberg <address@hidden> >CC: McIDAS Developers Forum <address@hidden> >Subject: Re: [mdf] Combining Images Douglas, A quick method (not using satellite viewing angles) is to use IMGOPER. Use IMGREMAP to generate 2 or more satellite images that have the same projection. Now use IMGOPER image1 image2 image..n destination_image FORM=CMIN ZERO=DATA SIZE=ALL Another possibility is: IMGOPER image1 image2 image..n destination_image FORM=CMAX ZERO=DATA SIZE=ALL Dealing with satellite view angles is much more complicated. There is a routine in McIDAS-XRD version 7.8 called cldtopo.pgm. This program contains a lot of the code to determine the sun location based on a given lat/lon. If you could input the lat/lon subpoint of the satellites (or possibly get it from the navigation routines) you might be able to do some quick geometry to get exactly what you want. Rick Kohrs >From: Dave Santek <address@hidden> >Date: Mon, 22 Oct 2001 14:39:00 -0500 >Organization: Space Science & Engineering Center >To: Rick Kohrs <address@hidden> >CC: Douglas Spangenberg <address@hidden>, > McIDAS Developers Forum <address@hidden> >Subject: Re: [mdf] Combining Images I'm getting some code from Fred Mosher that I'll either put in XRD or MDF that I think does some of what you want. dave >From: Russ Dengel <address@hidden> >Date: Mon, 22 Oct 2001 15:32:38 -0500 >Organization: SSEC >CC: McIDAS Developers Forum <address@hidden> >Subject: Re: [mdf] Combining Images All, I just moved Ricks CLDTOPO program into the MDF. I will take a shot at making this application ADDE active tonight. Russ