Eastern-Western Hemisphere polygon problem?

Discussion created by Cammarere0 on Apr 18, 2011
Does anyone know if there's an issue with the ITopologicalOperator Union and Difference methods that depends on the earth hemisphere? I've been struggling with an issue of code that produces strange/wrong results on Union and/or Difference operations - but only with data in the Eastern Hemisphere! It always seems to run correctly with my Western Hemisphere data, but sometimes/often in the Eastern Hemisphere the results of polygon Unions and Differences come out incorrectly.

Has anyone encountered this issue before? If so, is there a work-around?

Mark C.