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Hi

 

I seeking a way on how to use the Vincenty's inverse formula (or any other solution) within FME. I got several hundreds of ascii files of sub bottom seismic data that i need to process. Each file can contain many millions of rows, i.e. points. The vast amount of data requires the solution to be non-geographical, only to be solved with mathematics.

 

What I need to do is to calculate and check the distances between point locations (the rows) as well as compare height differences (z) between the pairs;

 

Row2 to Row1

 

Row3 to Row2

 

...

 

Row(n) to Row(n-1)

 

 

I cannot find a way on how to first store one row in memory and then compare it with a previous row. If the difference in height or length is too far off I need to mathematically give Row(n) a new position based on the first and shot point index

 

 

Any suggestions on how to get around this problem is most appreciated
Hi,

 

 

look into the AttributeCreator, in FME 2014 it will allow you to reference attribute values from both prior and subsequent features:

 

 

 

 

There is more info in the Help.

 

 

David
Great, thanks.. i didn't know that this functionality existed..

 

 

André

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