How do I show elevation points on my DTM using ArcMap?

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02-02-2016 10:15 AM
SiobhanO_Connor
New Contributor

I've downloaded Lidar data from the environment Agency website and have the DEM, but was wondering how do I get each individual elevation point to show on the map.

Many thanks

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DanPatterson_Retired
MVP Emeritus

according to the help topic, you can specify the field to use in creating the output points.  Since it is a DEM you undoubtedly want the Value field...aka the elevation since it is a DEM.  I suspect that your DEM raster doesn't have a table, since it is probably a floating point grid/raster.  If you try to open its table and can't, then that is why.  If it is an integer grid, you can open the table and examine the other fields...if any

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DanPatterson_Retired
MVP Emeritus

Well, you can get all of the points out from the raster cells

Raster to Point—Help | ArcGIS for Desktop

which will look pretty messy, especially if your raster is dense, but you might want to be a little selective and prune that set, or select locations that you are really interested in

SiobhanO_Connor
New Contributor

Thanks that's great, sorry new to this but I'm looking at elevation data for a specific field, how do I select just to get data for that field alone?

Many thanks

0 Kudos
DanPatterson_Retired
MVP Emeritus

according to the help topic, you can specify the field to use in creating the output points.  Since it is a DEM you undoubtedly want the Value field...aka the elevation since it is a DEM.  I suspect that your DEM raster doesn't have a table, since it is probably a floating point grid/raster.  If you try to open its table and can't, then that is why.  If it is an integer grid, you can open the table and examine the other fields...if any