topic Re: TopoToRaster Boundary - ArcMap Crash in ArcGIS Spatial Analyst Questions

TopoToRaster Boundary - ArcMap Crash

DrewMahedy — Mon, 04 Mar 2013 17:16:08 GMT

Hi,

I'm trying to perform a TopoToRaster interpolation of bathymetric data that falls within a given boundary defined by the stream. I added the point shapefile and specified the Type as "Point Elevation" and the Field of interest. I then added the boundary polygon shapefile and specified the type as "Boundary". Output cell size was set to 30 m and the output extent was set to the same file as the boundary polygon shapefile. The primary type of input data was set to "Spot". Everything else was left as a default value. When I run this interpolation, ArcMap always crashes. No error message is given. Anyone have an idea of what is going on?

Thanks

Re: TopoToRaster Boundary - ArcMap Crash

SteveLynch — Mon, 04 Mar 2013 19:31:29 GMT

Andrew

What version of ArcGIS are you using? and please can you zip your data and email it to me (slynch@esri.com).

Thanks
Steve

Re: TopoToRaster Boundary - ArcMap Crash

SteveLynch — Mon, 04 Mar 2013 22:39:20 GMT

TopoToRaster in ArcGIS 10.1 can produce larger output rasters than were created pre-10.1

However, we still cannot create huge rasters and it appears that the output size limit was reached in this case.

To read more about it please see
http://blogs.esri.com/esri/arcgis/2012/08/13/how-large-a-dem-can-the-topotoraster-tool-create/

Regards
Steve

Re: TopoToRaster Boundary - ArcMap Crash

DrewMahedy — Fri, 15 Mar 2013 17:36:35 GMT

Hey, thanks again Steve. I figure I'll just have to split up the dataset into different parts, perform the interpolation individually, and mosaic them together. Ultimately, I'm trying to replicate a process performed by another ArcMap analyst who did just that.

I do still have a few questions about Topo to Raster that I can't quite figure out though. The boundary I'm using is a polygon shapefile that exactly matches the extent on the lower reach of the river (It's the first boundary of three that I created from the original polygon). What is the difference between using the input boundary parameter and the output extent? My understanding is that the output extent encompasses all the data such that it will interpolate the upstream edge properly even though the boundary cuts off the raster output at that edge. Also, my input feature shapefile is point elevation data. Is there any difference between using this as an input or by making a contour shapefile from the point elevations and using that as the input for the Topo to Raster calculation?

Drew