topic Re: How to create new raster files and assign values using information from other raster layers? in Data Management Questions https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537596#M30508 <HTML><HEAD></HEAD><BODY><P>What is you license ?</P><P>and Do you have Spatial Analyst&nbsp;?</P></BODY></HTML> Mon, 13 Mar 2017 19:53:42 GMT AbdullahAnter 2017-03-13T19:53:42Z How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537590#M30502 <HTML><HEAD></HEAD><BODY><P>Hi all, I want to create a&nbsp;new raster file and need some guidance. The first screenshot displays the current raster file I have. And I want to enlarge its spatial extent to the rectangular boundary and assign 0 to the newly-added pixels. How can I make it using ArcMap? Any ideas will be highly appreciated!&nbsp;Thanks!</P><P><IMG alt="" class="image-1 jive-image j-img-original" src="https://community.esri.com/legacyfs/online/339828_Capture.JPG" style="width: 620px; height: 513px;" /></P><P><IMG alt="" class="image-2 jive-image j-img-original" src="https://community.esri.com/legacyfs/online/339829_Capture1.JPG" style="width: 620px; height: 501px;" /></P></BODY></HTML> Mon, 13 Mar 2017 15:33:47 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537590#M30502 Zihan_Lin 2017-03-13T15:33:47Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537591#M30503 <HTML><HEAD></HEAD><BODY><P>Your question is not clear.</P><P>What are you want to do in details?</P></BODY></HTML> Mon, 13 Mar 2017 18:44:30 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537591#M30503 AbdullahAnter 2017-03-13T18:44:30Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537592#M30504 <HTML><HEAD></HEAD><BODY><P>Thanks for the reply. I've compiled my question and hopefully it's clear now.</P></BODY></HTML> Mon, 13 Mar 2017 18:57:56 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537592#M30504 Zihan_Lin 2017-03-13T18:57:56Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537593#M30505 <HTML><HEAD></HEAD><BODY><P>Do you want to assign 0 value to new pixels to fit rectangle extent?</P></BODY></HTML> Mon, 13 Mar 2017 19:30:07 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537593#M30505 AbdullahAnter 2017-03-13T19:30:07Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537594#M30506 <HTML><HEAD></HEAD><BODY><P>Yes. Exactly.</P></BODY></HTML> Mon, 13 Mar 2017 19:32:26 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537594#M30506 Zihan_Lin 2017-03-13T19:32:26Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537595#M30507 <HTML><HEAD></HEAD><BODY><P>Are you talking about the values that has no "zero" values in&nbsp;their attribute Table ?</P></BODY></HTML> Mon, 13 Mar 2017 19:52:42 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537595#M30507 DEAF_PROBERT_68 2017-03-13T19:52:42Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537596#M30508 <HTML><HEAD></HEAD><BODY><P>What is you license ?</P><P>and Do you have Spatial Analyst&nbsp;?</P></BODY></HTML> Mon, 13 Mar 2017 19:53:42 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537596#M30508 AbdullahAnter 2017-03-13T19:53:42Z Re: How to create new raster files and assign values using information from other raster layers? https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537597#M30509 <HTML><HEAD></HEAD><BODY><P>Probably the easiest this would be to create a constant raster with a value of 0 then with the same cell size as your existing raster layer but the extent of your rectangle.&nbsp; Then you could use any number of raster calculator functions to create a new raster with both rasters as inputs such as the Plus Tool to add them together or use a&nbsp;Over function to copy over the cells from the original where they already exist and apply 0 values to areas where they did not exist before(Unless you have some negative values in your original raster, please look at the raster math toolbox to find the tool to suit your need).&nbsp; Please take into account what you are using for a snap raster environment, since likely your cells will not perfectly overlap and you will want to shift the constant raster to your existing data, instead of the reverse.</P><P></P><P>Constant Raster - <A href="https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/create-constant-raster.htm">https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/create-constant-raster.htm</A></P><P>Over&nbsp;- <A href="https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/over.htm">https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/over.htm</A></P><P>Plus&nbsp;- <A href="https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/plus.htm">https://desktop.arcgis.com/en/arcmap/10.4/tools/spatial-analyst-toolbox/plus.htm</A></P><P>Snap Raster Environment - <A href="https://desktop.arcgis.com/en/arcmap/10.4/tools/environments/snap-raster.htm">https://desktop.arcgis.com/en/arcmap/10.4/tools/environments/snap-raster.htm</A></P></BODY></HTML> Mon, 13 Mar 2017 20:16:55 GMT https://community.esri.com/t5/data-management-questions/how-to-create-new-raster-files-and-assign-values/m-p/537597#M30509 IanMurray 2017-03-13T20:16:55Z