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How to perform the �??Create Thiessen Polygons�?� within the study area?

JamalNUMAN

How to perform the �??Create Thiessen Polygons�?� within the study area?

Please, see the attached image that shows my question

In ArcGIS, it is not easy all the time to perform some tools so that the output is bounded by a given study area, for example:

- If we need the output of the tool �??Create Tin�?� to be bounded by the study area then we set a boundary layer as �??Softclip�?� (see screenshot)
- Concerning the spatial analyst tools, we set the boundary layer to be the mask (see screenshot)

Then how to let the output of the tool �??�??Create Thiessen Polygons�?� bounded by certain study area?

Thank you in advance,

Regards

Jamal

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JulieZamudio

Has this enhancement been added?

JamalNUMAN

Thanks Dan. Actually, I didn’t get my issue resolved here.

What I’m looking for is to get the output of “Create Thiessen Polygons” tool within the study area.

DanPatterson_Retired

Jamal...after 6 months, could you close the thread by indicating that this was a correct solution (if it was) It saves the Moderators having to go around and clean up unclosed threads

JamalNUMAN

Thanks Dan

Best

Jamal

DanPatterson_Retired

or http://www.arcgis.com/home/item.html?id=6e9bc6cbf93d4939b2eb04ff8519be47

JamalNUMAN

I have made with arcobjects if you haven't license arcinfo: https://github.com/nicogis/Voronoi
I intersect with envelope ( https://github.com/nicogis/Voronoi/blob/master/GeometryVoronoi.cs#L180 ) but you can change with your polygon (study area)

Thanks Domenico

Best

Jamal

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Anonymous User

Original User: ciava.at

I have made with arcobjects if you haven't license arcinfo: https://github.com/nicogis/Voronoi
I intersect with envelope ( https://github.com/nicogis/Voronoi/blob/master/GeometryVoronoi.cs#L180 ) but you can change with your polygon (study area)

DanLee

Perhaps you have the ArcView or ArcEditor license. You will need the ArcInfo license to get the Create Thiessen Polygons tool.

Anonymous User

Original User: farshad171

Hi
I want to create Thiessen polygon within a watershed by using point data. I am using Arcgis 9.3 with all component. The problem is that, there is no '' Create Thiessen polygone'' tool in proximity function.
In proximity I just have Buffer and Multiple ring buffer. Do you know what's wrong with it? I am lost in the the middle of an assignment.

Best regards,

DanLee

Here is an earlier discussion on the same subject. Have a look:
http://forums.arcgis.com/threads/4372-Run-Thiessen-polygons-to-a-specific-boundary-shapefile

Hope you can solve the problem using that solution.

Anonymous User

Original User: Jamal432@gmail.com

An enhancement for this has been raised for a future release. For the time being, if you are talking about only one study area, you can run Clip tool to clip the Thiessen polygons by the study area polygon. If you have multiple study areas in the same feature class, you would need to do this one study area at a time in a loop (iteration).

Thank you Dan for the answer. that's great that this enhancement will be included in a future release.

Could you please elaborate more how can i make a loop (Iteration) so that i can perform this command (Create Thiessen Polygons) considering more than one study area?

appreciated

regards

Jamal

Clip_1317.jpg

DanLee

An enhancement for this has been raised for a future release. For the time being, if you are talking about only one study area, you can run Clip tool to clip the Thiessen polygons by the study area polygon. If you have multiple study areas in the same feature class, you would need to do this one study area at a time in a loop (iteration).

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