This project has moved. For the latest updates, please go here.

how to identify point in geometry

Topics: Algorithms
May 7, 2007 at 3:38 PM
Hello gis people,

how can identify a point into geometry with executeintersectionquery?

I try with executeIntersectionQuery(p.getBoundingbox,ds)
but i have more geometries than one
I want only one where i click mouse point.

Please help me i don't understand the functionality.

May 8, 2007 at 6:38 AM
Well, the problem is that the intersection query is performed at bounding box level, so when you pick a point and query the layer, the answer is a set of geometries with a bounding box containing the point... so if 2 or more bounding box overlap, you obtain the full set...
I found interesting examples about using NetTopology Suite to preform the task, like this or this (look at 18th May post)... I think the latter could fit better your issue ^^
May 8, 2007 at 1:30 PM
thanks for reply .... :-)