Can read according to traces[ 1 5 9]?

[13299118606]

Can read sgy read according to traces, such as parameter traces in python; sgyio, want to read part of large sgy data without having to load it into the whole data and then slice it, such as reading [1 59 100] of a [50 ：100].

[mloubout]

Lemme check I I understand the question, you want to read a few specific traces out of a segy file? If so yes this is exactly what this package is designed for. Don't use segy_read that reads the whole file but use segy_scan that only reads the headers and then you can access specific traces via block.data[tracenmber].

E.g.

block = segy_scan(pwd(), partial_name,  ["SourceX", "SourceY"])
traces = Float32.(block[1].data[[1, 5, 9]]) # 1 block per source

[13299118606]

Thank you very much for your answer, I understand out this powerful function, but there are still some small bugs and suggestions in the use process;
1.traces=block2 [[1,5,9]] # Read lane 1,5,9 seismic data is seisblock, which must be considered artificial set traces.fileheader.bfh.dt = 1000, cannot directly equal to seiscon.dsf * 1000, without this field this will cause the write sgy data open error in other applications.
2. Can you add other formats segywrite, such as the IBMfloat format