how to find polygon intersecting another polygon

[sivasrinivasamara]

Hi,

I am trying to find whether a polygon is intersecting another polygon, if it is i need to replace those two intersecting polygons with a union of them. here it is what I am doing

1. Added a layer to map
2. added a graphic layer to map and drawing polygons with free-hand-polygon tool
3. after adding each polygon, need to check is it intersecting any other polygon
4. if a polygon intersecting another polygon, replace those two with union of them

could you please anyone give suggestions how to do find intersection and replacing them with union if they intersect?

Thanks

[StephenLead]

I'd start by looking at GeometryService and Geoprocessor. Between one or both of those you should be able to achieve what you need.