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Select parcel, buffer it, use buffer to select parcels within buffer. How?

ShawnKraft1

I played with the enhanced search widget but I can't get it to work. I don't even understand how to use it. Isn't there a simpler way to select a feature, buffer it, and use the buffer to select additional features? In Flexviewer 1.3 it was simple and easy.

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PaulTHEDUDELang

Thanks!
Merry Christmas

rscheitlin

Paul,

I don't believe that the Flex API can do that, there is no reference in their docs:

http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/tasks/supportClasses/BufferParameters.html

PaulTHEDUDELang

How can i change this buffer to Outside Only?

ShawnKraft1

Robert I am going to try to build a widget to do what I need. Do you have any suggestions on how to start? I was thinking of starting by copying the Buffer using Geometry Service sample and modifying it. Figured I would ask you because you might know of any hangups with certain samples and be able to recommend one to start.

ShawnKraft1

This is a good tool. I figured out how to use it from your image. Thanks Robert.

rscheitlin

Shawn,

So, I could select a parcel graphically with this tool, then switch to the spatial search and buffer the selected parcel and grab the parcels inside the buffer correct?

Actually NO. You would have to do the search using the where clause. If you have :

<expression useforspatial="true">upper(PPIN) = upper('[value]%')</expression>

then you would only have to have the actual parcel number in the second layers where textbox. so instead of PPIN = '1998' than you would have just 1998. In my cadastral data a PPIN is a small unique ID for each parcel so that you don't have to type the whole 16 digit parcel number.

ShawnKraft1

K gotcha. Is the PPIN the parcel number? So, I could select a parcel graphically with this tool, then switch to the spatial search and buffer the selected parcel and grab the parcels inside the buffer correct?

rscheitlin

Shawn,

I can explain how to do it in the enhanced search widget, there is nothing out there right now for FlexViewer 2.x that is simpler that I know of...

A picture is worth a thousand words so here is one using my parcels layer to select other parcels that intersect the selected parcels buffer of 20 feet.

example.jpg

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