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Justin
Justin
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I have 8 tables with RouteID, BeginMeasure and EndMeasure. I want to successively overlay them starting with the first two and then overlaying the result and the next table then the result of that overlay and the next table until all tables have been run. I am doing UNION as overlay type. For some reason when I get to the 4th overlay the tools stops overlaying and just seems to start appending.

If two records have the same measure range and all other values are ok the operation doesn't seem to combine the records. Are Null vs blank strings considered conflicts for unioning records?

EDIT: The steps are are to use the Result of the first overlay and as the input table and the next table to be overlayed as the overlay table (second parameter). Is there an ArcMap memory issue? What is the difference between the input table and the overlay table other than just attribute ordering?

EDIT 2: Looks like there may be memory issues in Arcmap. After testing/executing 6 or 7 overlays with different datasets it seemed to break down and not want to work. Closed ArcMap and re opened and started working again.

I have 8 tables with RouteID, BeginMeasure and EndMeasure. I want to successively overlay them starting with the first two and then overlaying the result and the next table then the result of that overlay and the next table until all tables have been run. I am doing UNION as overlay type. For some reason when I get to the 4th overlay the tools stops overlaying and just seems to start appending.

If two records have the same measure range and all other values are ok the operation doesn't seem to combine the records. Are Null vs blank strings considered conflicts for unioning records?

I have 8 tables with RouteID, BeginMeasure and EndMeasure. I want to successively overlay them starting with the first two and then overlaying the result and the next table then the result of that overlay and the next table until all tables have been run. I am doing UNION as overlay type. For some reason when I get to the 4th overlay the tools stops overlaying and just seems to start appending.

If two records have the same measure range and all other values are ok the operation doesn't seem to combine the records. Are Null vs blank strings considered conflicts for unioning records?

EDIT: The steps are are to use the Result of the first overlay and as the input table and the next table to be overlayed as the overlay table (second parameter). Is there an ArcMap memory issue? What is the difference between the input table and the overlay table other than just attribute ordering?

EDIT 2: Looks like there may be memory issues in Arcmap. After testing/executing 6 or 7 overlays with different datasets it seemed to break down and not want to work. Closed ArcMap and re opened and started working again.

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PolyGeo ♦
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ESRI ArcGIS Linear Referencing successive overlay operations

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Justin
Justin
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ESRI Linear Referencing successive overlay operations

I have 8 tables with RouteID, BeginMeasure and EndMeasure. I want to successively overlay them starting with the first two and then overlaying the result and the next table then the result of that overlay and the next table until all tables have been run. I am doing UNION as overlay type. For some reason when I get to the 4th overlay the tools stops overlaying and just seems to start appending.

If two records have the same measure range and all other values are ok the operation doesn't seem to combine the records. Are Null vs blank strings considered conflicts for unioning records?