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3-dimensional distance from multiple points to closest polyline

- - - - - distance point to polyline spatial analyst ArcMAP DEM non-euclidean

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#1
mwstbrk

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I am trying to calculate distance over terrain using the following components in ArcMap v10.1: 

-point shape values (with x, y, z data)
-polylines (only x, y data)
-DEM from CanadaGeoBase

The polyline was manually created. I will need to extract elevation data from the DEM to every pixel along the poly-line. Without the Z data on the polyline, the distance I calculate will only be 2-dimensional and, therefore, an under-representation of actual distance from point to line as the data is in mountainous terrain.

Does anyone have any suggestions that don't involve map algebra or model building? I was told that there should be a simple tool to use, but I have been unable to find it as of yet.

Thank you in advance!



#2
David Medeiros

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http://resources.arc...900000016000000

 

your welcome  ; )


GIS Reference and Instruction Specialist, Stanford Geospatial Center.

 

www.mapbliss.com

 


#3
mwstbrk

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Thanks for the response! This seems to be a good start.
 
I used "add surface information" tool to interpolate z-values to the polylines that I created manually from my DEM.  This worked fine.
 
Next, I ran the "near 3D" tool to calculate 3D distance using a point shapefile as my input feature class and my polylines as the near feature class.
 
When I opened the attribute table for my inpute feature, new attributes were added, but the fields were populated with all "0" values.
 
Thoughts?






Also tagged with one or more of these keywords: distance, point to polyline, spatial analyst, ArcMAP, DEM, non-euclidean

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