Finding a desired distance down a line

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02-06-2014 06:14 AM
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Frequent Contributor II
I am new to Network Analyst.  I have worked a lot with Geometric Networks. 

I am on 10.2 and have all extensions available to me.

Here is what we are trying to do.

We have transmission lines.  We have SCADA points on those lines.

What we would like to do is trace downstream from a given SCADA point a given distance. 

example.  SCADA point ABC I want to select it and then find a point 1453 feet away on a given transmission line.

Can anyone direct me to a tutorial or give me a rough sketch on how to accomplish this.

I have created a Route Layer out of my transmission lines and assigned a RouteIdentifier.

Do I need a geometric network, a network dataset etc...

thanks,
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Occasional Contributor II
may be use dynamic segmentation of linear referencing feature of arcgis.

http://resources.arcgis.com/en/help/main/10.2/index.html#//003900000001000000
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Frequent Contributor II
thanks I will give this a look.

However it sparked an idea in me that we could simply assign address ranges in the transmission line from the SCADA point out and geocode the locations. 

But the quick look I took at the linear referencing looks promising.
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MVP Frequent Contributor

In GN if you have set flow with sink you can perform a task downstream trace and find a valid solution. Then with IEnumNetEID you build a polylineM (MAware) and with IMSegmentation3 Interface you calibrate M value and find the point to distance ...

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MVP Frequent Contributor

or more simply, use QueryPoinAndDistance (see ArcObjects 10 .NET SDK Help )

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