topic Utilizing breaklines in DEM creation in ArcGIS Spatial Analyst Questions

Utilizing breaklines in DEM creation

DonDavis — Wed, 31 Jul 2013 15:40:48 GMT

Hello,

I have DEM points and break lines and have initially created a 25m DEM using the Topo to Raster tool but I used just the DEM points as input, the output raster looks good. The break lines are ridges, streams, lake shores etc represented as Polyline ZM. These are not contours so I was wondering if there's a way of incorporating these into the topo to raster tool or is there another workflow that I should use?

I just wanted to take advantage of the extra break line data in creating the DEM if there were options available.

Thanks for any information.

Re: Utilizing breaklines in DEM creation

NeilAyres — Thu, 01 Aug 2013 06:49:11 GMT

Lake boundary polygons (lines of constant elevation) and stream lines and other sorts of topo data can be all input into the topo to raster function.
Just read the help "How Topo to Raster works".
It is the best tool around for this sort of data.

Re: Utilizing breaklines in DEM creation

DonDavis — Thu, 01 Aug 2013 14:37:31 GMT

Ah yes I see the information on streams in the How Topo to Raster works documentation. It appears that I need to separate the streams and ridge lines from the lake lines to allow selection of the correct accepted input type.

Thanks.