Hi,
I am building an index of a LiDar project (using .las files). I can use lasboundary.exe to create .shp boundary polygon for each individual file (using the merge option will only create one big polygon). I can then use "vector/data management tools/merge the shapefile to one" to make one file.

The problem is I need a field (the file names) for each polygon. Is there an field expression for this?

This field is not created by lasboundary or my "merge the shapefile to one". Perhaps I can use the "Advanced Python field calculator" in batch mode in the processing plugin but I don't know how to return the files names. Can someone help or give my and idea of how to proceed?

Thanks in advance
Nicolas

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