polygonize lines

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Keith

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Mar 27, 2008, 12:08:29 PM3/27/08
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Martin,

I know JUMP can polygonize lines that are noded. I have fully noded
lines that I'd like to create polygons from. Can JEQL help do this? I
want a scriptable solution instead of JUMP. If not, can you recommend
an algorithm. I have a centroid point for each potential polygon, if
this helps. Thanks.

Keith

Martin Davis

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Mar 27, 2008, 12:49:39 PM3/27/08
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Well what a coincidence.... I was just thinking about how to do this using Jeql.  I view Polygonization as a poster child for scripted geometry processing - it's a clean, straightforward task which can be easily scripted, but typically it does take several inputs (e.g. lines and centroids) and may produce several outputs (e.g. polygons, and possibly error lines which could not be correctly polygonized.

So...  this should be easy to add to Jeql.  I'll make this the priority for my focus over the next few days. 

Do you have a sample dataset of lines and centroids that you can provide?  (I can make one up, of course, but it's nice to have a real test case).

M

Keith

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Mar 27, 2008, 1:30:02 PM3/27/08
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Great. I just emailed you a test file at your refractions address. I
do not see how to attach a file here.

keith

On Mar 27, 10:49 am, "Martin Davis" <mtncl...@gmail.com> wrote:
> Well what a coincidence.... I was just thinking about how to do this using
> Jeql. I view Polygonization as a poster child for scripted geometry
> processing - it's a clean, straightforward task which can be easily
> scripted, but typically it does take several inputs (e.g. lines and
> centroids) and may produce several outputs (e.g. polygons, and possibly
> error lines which could not be correctly polygonized.
>
> So... this should be easy to add to Jeql. I'll make this the priority for
> my focus over the next few days.
>
> Do you have a sample dataset of lines and centroids that you can provide?
> (I can make one up, of course, but it's nice to have a real test case).
>
> M
>
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