For example, the Union tool honors the Output Coordinate System environment setting, which means you can union several feature classes together, all of which are in a different coordinate system, and write the output to a feature class in a different coordinate system. Many geoprocessing tools honor the Output Coordinate System environment setting, and in many workflows, you can use this environment setting instead of the Project tool. Use the Check Geometry tool to detect invalid geometry and the Repair Geometry tool to repair any geometry issues.įeature classes participating in a geometric network cannot be projected independently-the entire feature dataset containing the network must be projected. In rare cases, projecting feature geometry may cause features to be transformed in a way that makes them invalid. When all inputs are in the same coordinate system, you will avoid possible performance and functional issues caused by projecting data on the fly. It is recommended that all inputs for a project be projected to the same coordinate system prior to performing analysis. These can be deleted using the Repair Geometry tool. ![]() Features that fall completely outside the horizon will be written to the output with a null shape. The exception is participating stand-alone tables.ĭepending on the input feature's coordinates and the horizon (valid extent) of the output coordinate system, multipoints, lines, and polygons may be clipped or split into more than one part when projecting them. If the input participates in relationship classes (as with feature-linked annotation), the relationship class will be transferred to the output.
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