Hi Tony,
The com.bbn.openmap.geo package does this intersection work for you.
If you have a group of OMGraphics that you want to test for
intersections, you can load them into a GeoExtentIndex (after
converting them to GeoExtent objects), and then use the Intersection
class to test.
You can use the com.bbn.openmap.dataAccess.shape.ShapeGeoIndex as an
example of loading a ExtentIndex from a shape file. The
com.bbn.openmap.layer.test.GeoIntersectionLayer is an example of
calculating intersections with drawn objects. You can add it to
OpenMap to see it in action, the main intersection tests are in the
calculateIntersectionsWithDrawnList method.
Hope this helps,
Don
On Tue, Jun 28, 2011 at 2:43 AM, Tony Vasile <avasile_at_csc.com.au> wrote:
>
> I trying to draw a path from one OMGraphic to another but I want to know if
> there is anything in the way, for example another OMGraphic or a landmass,
> and draw the path around the obstacle. Is there a simple way to do this sort
> of intersection or do I need to write something from scratch.
>
> Tony Vasile
> Senior Software Engineer
> CSC
>
> Level 3B, 26 Talavera Road Macquarie Park NSW 2113 Australia
> GBS | p: +61 2 9034 2404 | f: +61 2 9034 2398 | avasile_at_csc.com |
> www.csc.com
>
>
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Received on Tue Jun 28 2011 - 09:11:40 EDT