topic Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files? in ArcGIS Spatial Analyst Questions

How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

MarinaMeter — Wed, 27 Apr 2016 17:52:54 GMT

Details- I have USGS DEM (utm 11 NAD 83) and I need to split these into 4 equal quadrants, each with a 100 meter overlap, and export each of these files separately, can this be done? what tools could do this?

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

DanPatterson_Retired — Wed, 27 Apr 2016 17:58:53 GMT

Clip—Help | ArcGIS for Desktop you just have to do the math by setting the correct extent each time, you can control your bounds. There are probably fancier ways but this will be the fastest

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

MarinaMeter — Wed, 27 Apr 2016 18:06:47 GMT

Im not sure what you mean by control your bounds?? Im new to ESRI my bounds are North 5020,000, South 4960,000, East 500,000, West 532,100. How is this done by setting the extent?

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

DanPatterson_Retired — Wed, 27 Apr 2016 18:16:54 GMT

so you want to split it into 4... we will use the clip tool, I am assuming you mixed up East and west

5,020,000

500,000 532,100 => difference = 32,100 / 2 = 16,050

4,960,000

N-S difference = 60,000 / 2 = 30,000

bottom left extent

4,990,100 to give the upper 100 overlap

500,000 516,150 to give the 100 m overlap

4, 960,000

repeat for the other 4 quadrants

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

SteveLynch — Wed, 27 Apr 2016 18:20:47 GMT

or SplitRaster

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

MarinaMeter — Thu, 28 Apr 2016 18:41:05 GMT

Thank you so much Dan for your help on this, i tried both methods and i liked the clip raster function better. I appreciate your help thanks again

marina

Re: How do I split a DEM into 4 quadrants with an 100 meter overlay and export 4 different files?

DanPatterson_Retired — Thu, 28 Apr 2016 20:47:27 GMT

you are welcome