[OpenLayers-Users] setting WKT returned from postGIS in form field to openlayers feature

Eric Lemoine eric.c2c at gmail.com
Fri Oct 31 12:47:13 EDT 2008


Hi. We cannot guess what's going on without seeing actual code. If you
use the read method of OpenLayers.Format.WKT keep in mind that it
returns an OpenLayers.Feature.Vector object. Eric

2008/10/31, Burgholzer,Robert <rwburgholzer at deq.virginia.gov>:
> I forgot to give the openlayers error:
>
>
>
> Error: feature.geometry.getBounds is not a function
>
> Source File:
> http://172.16.209.70/html/devlib/OpenLayers-2.7/OpenLayers.js
>
> Line: 325
>
>
>
> Robert W. Burgholzer
>
> Surface Water Modeler
>
> Office of Water Supply and Planning
>
> Virginia Department of Environmental Quality
>
> rwburgholzer at deq.virginia.gov
>
> 804-698-4405
>
> Open Source Modeling Tools:
>
> http://sourceforge.net/projects/npsource/
>
> -----Original Message-----
> From: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org]
> On Behalf Of Burgholzer,Robert
> Sent: Friday, October 31, 2008 11:51 AM
> To: users at openlayers.org
> Subject: [OpenLayers-Users] setting WKT returned from postGIS in form
> fieldto openlayers feature
>
>
>
> My application returns a WKT representation of an element geometry in a
> hidden form field.  I am trying to take that geometry and push it into
> an openlayers feature layer, so that as the user goes views different
> elements from the PG server, those features appear in the foreground on
> the OL map.
>
>
>
> I have tried to implement some code from the WKT example, but I am not
> having any luck.  The feature fails to draw, although I know it is
> there, because I have been using an alert() to show me the contents of
> the WKT string.  Thus, I am guessing that somehow my format returned
> from PostGIS is incorrect.  Here is the contents of my hidden form
> field:
>
>
>
> MULTIPOLYGON(((-8623549.09290489 4522549.65191948,-8623596.86604756
> 4522931.83706085,-8623635.0845617 4523629.32494386,-8624131.92524548
> 4523591.10642972,-8624619.21130074 4523619.77031532,-8625488.68249736
> 4523610.21568679,-8626224.3888945 4523552.88791558,-8626319.93517984
> 4523552.88791558,-8626597.01940734 4523849.08140015,-8626721.22957829
> 4524040.17397083,-8627256.28877621 4523973.2915711,-8627390.05357569
> 4523954.18231403,-8627409.16283276 4523715.31660067,-8627447.38134689
> 4523581.55180119,-8627265.84340474 4523266.24905955,-8627208.51563353
> 4523103.82037447,-8626979.20454871 4522884.06391818,-8626616.12866441
> 4522759.85374724,-8626052.40558088 4522654.75283335,-8625555.5648971
> 4522444.5510056,-8625240.26215547 4522243.90380638,-8625058.72421331
> 4522463.66026267,-8624724.31221461 4522501.87877681,-8624514.11038686
> 4522406.33249147,-8624237.02615936 4522234.34917785,-8623959.94193187
> 4522234.34917785,-8623644.63919024 4522282.12232052,-8623549.09290489
> 4522549.65191948))
>
>
>
>
>
> Any help would be most appreciated,
>
> r.b.
>
>
>
> Robert W. Burgholzer
>
> Surface Water Modeler
>
> Office of Water Supply and Planning
>
> Virginia Department of Environmental Quality
>
> rwburgholzer at deq.virginia.gov
>
> 804-698-4405
>
> Open Source Modeling Tools:
>
> http://sourceforge.net/projects/npsource/
>
>
>
>



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