Topology: function GetNodeByPoint($1,$2,$3)

[aperi2007]

Has companion of GetEdgeByPoint? I create also GetNodeByPoint? to detect node before call the GetEdgeByPoint?.

GetNodeByPoint?(atopology, point, tolerance)

Retrieve a Node ID given a POINT and a tolerance tollerance = 0 mean exactly intersection

Returns the integer ID if there is a Node on the Point.

If there isn't any node in the Point, GetNodeByPoint? return 0.

if near the point there are two or more nodes it throw an exception.

[aperi2007]

Patch to add the GetNodeByPoint?

[strk]

as for #791, testcase and docs patches are welcome (and maybe also putting these new things in a query.sql file?)

[aperi2007]

GetNodePoint? documentation

[aperi2007]

Test regress

[aperi2007]

Expected test regress

[aperi2007]

Hi, I add the regress with expected. The package is complete.

[aperi2007]

GetNodeByPoint? code

[aperi2007]

I have add to this ticket the pack for GetNodeByPoint? as asked.

 https://trac.osgeo.org/postgis/attachment/ticket/793/getnodebypoint.zip

[strk]

I've committed code and regress test in r6864. @robe: do you want to take care of the documentation ? coming in a nice external file you may have a way to include it rather than embedding it..

[robe]

documentation completed at r6869