topic Re: Sum raster layers in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205093#M5356 <HTML><HEAD></HEAD><BODY><SPAN>Yes, but the problem is that I want to sum all the layers in the table of contents, and I don't know before hand how many they are!</SPAN><BR /><BR /><BR /><SPAN>Regards,</SPAN></BODY></HTML> Fri, 27 Aug 2010 07:52:54 GMT Ahmed_Wagih_Abdel-LatifAzab 2010-08-27T07:52:54Z Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205091#M5354 <HTML><HEAD></HEAD><BODY><SPAN>Dear All,</SPAN><BR /><BR /><SPAN>How can I sum a number of Grids loaded in the table of contents (I don't know the number of layers) in ArcObjects .NET?</SPAN><BR /><BR /><SPAN>Regards,</SPAN></BODY></HTML> Thu, 26 Aug 2010 09:29:12 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205091#M5354 Ahmed_Wagih_Abdel-LatifAzab 2010-08-26T09:29:12Z Re: Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205092#M5355 <HTML><HEAD></HEAD><BODY><SPAN>did you try the RasterMapAlgebraOp ?</SPAN><BR /><A href="http://help.arcgis.com/en/sdk/10.0/arcobjects_net/conceptualhelp/index.html#//000100000165000000">http://help.arcgis.com/en/sdk/10.0/arcobjects_net/conceptualhelp/index.html#//000100000165000000</A></BODY></HTML> Thu, 26 Aug 2010 21:09:27 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205092#M5355 KirkKuykendall 2010-08-26T21:09:27Z Re: Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205093#M5356 <HTML><HEAD></HEAD><BODY><SPAN>Yes, but the problem is that I want to sum all the layers in the table of contents, and I don't know before hand how many they are!</SPAN><BR /><BR /><BR /><SPAN>Regards,</SPAN></BODY></HTML> Fri, 27 Aug 2010 07:52:54 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205093#M5356 Ahmed_Wagih_Abdel-LatifAzab 2010-08-27T07:52:54Z Re: Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205094#M5357 <HTML><HEAD></HEAD><BODY><SPAN>I was thinking of using IGPSAWeightedSum but I can't find any reference to its usage!</SPAN></BODY></HTML> Fri, 27 Aug 2010 07:57:22 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205094#M5357 Ahmed_Wagih_Abdel-LatifAzab 2010-08-27T07:57:22Z Re: Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205095#M5358 <HTML><HEAD></HEAD><BODY><SPAN>The code at the link I posted could be modified to sum all rasters in the TOC.</SPAN></BODY></HTML> Fri, 27 Aug 2010 11:57:02 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205095#M5358 KirkKuykendall 2010-08-27T11:57:02Z Re: Sum raster layers https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205096#M5359 <HTML><HEAD></HEAD><BODY><SPAN>Thanks Kirk, but how would you represent an array of rasterlayers (rasterlayer(i)) in the script? The following equation in the code seems to be rigid to me!</SPAN><BR /><BR /><SPAN>rasterModel.Script = "[out] = [in01] + [in02]"</SPAN></BODY></HTML> Fri, 27 Aug 2010 17:54:24 GMT https://community.esri.com/t5/arcobjects-sdk-questions/sum-raster-layers/m-p/205096#M5359 Ahmed_Wagih_Abdel-LatifAzab 2010-08-27T17:54:24Z