Question

Vincenty's formula inverse

Forum|Forum|11 years ago
March 26, 2014
2 replies
22 views

andre

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

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