I'm trying to design a model in ModelBuilder that will derive input files for a process from file paths stored in an index shapefile's attribute field.
The two datasets involved are a shapefile selection grid and a shapefile index of .LAS file footprints. The model will iterate through each grid square and select the index LAS footprints that intersect that square.
Within the index shapefile is an attribute field that has the file path of the corresponding LAS file (i.e. B:\las_files\100.las). Each grid square will intersect multiple LAS file footprints, so I want the model to collect those LAS files and use them as an input for the Create LAS Dataset tool. The output of the model will be a LAS Dataset for each grid square.
How can I relate the file paths stored in the attribute field to using those external files as model inputs?