treesmoist.dat not 3D coming from FastFuels Python SDK

[wxcutch]

I'm generating fuel input files for a quicfire run using the FastFuels SDK and when I run QF I get an error about I/O being past the end of the record on treesmoist.dat. When I compare the input files I generated before using FastFuels I noticed treesmoist.dat is 3D (as QF seems to be expecting) but the ones I was generating today were 2D. Any insight on how to solve the problem?

treesfueldepth.dat and treesrhof.dat both come 3D and topo.dat is coming 2D.

Surface grid generation code:

sfc_grid = (
    ff.grids.SurfaceGridBuilder(domain_id=domain.id)
    .with_fuel_load_from_landfire(
        product='FBFM40',
        version='2022',
        interpolation_method='cubic',
        curing_live_herbaceous=0.25,
        curing_live_woody=0.1,
        groups=['oneHour'],
        feature_masks=['road', 'water'],
        remove_non_burnable=['NB1', 'NB2'],
    )
    .with_fuel_depth_from_landfire(
        product='FBFM40',
        version='2022',
        interpolation_method='cubic',
        feature_masks=['road', 'water'],
        remove_non_burnable=['NB1', 'NB2'],
    )
    .with_uniform_fuel_moisture(
        value=0.15,
        feature_masks=['road', 'water']
    )
    .build()
)
sfc_grid.wait_until_completed()

Tree grid generation code (run before sfc grid):

tree_inventory = ff.inventories.Inventories.from_domain_id(
    domain.id
).create_tree_inventory_from_treemap(
    feature_masks=['road', 'water']
)
tree_inventory.wait_until_completed()

tree_grid = (
    ff.grids.TreeGridBuilder(domain_id=domain.id)
    .with_bulk_density_from_tree_inventory()
    .build()
)
tree_grid.wait_until_completed()

[amarcozzi]

@wxcutch I'll follow up with more details and a better plan to fix this on Friday. The export code will write things to 2D or 3D grids depending on what data is available. So you can fix this by changing your code to:

tree_inventory = ff.inventories.Inventories.from_domain_id(
    domain.id
).create_tree_inventory_from_treemap(
    feature_masks=['road', 'water']
)
tree_inventory.wait_until_completed()

tree_grid = (
    ff.grids.TreeGridBuilder(domain_id=domain.id)
    .with_bulk_density_from_tree_inventory()
    .with_uniform_fuel_moisture(100.)
    .build()
)
tree_grid.wait_until_completed()

Where I added the .with_uniform_fuel_moisture(100.) line. This is one of those things that I thought was clever at the time, but I now realize was probably a bad call. Let me know if that fixes it. I can follow up later this week with more details.

[wxcutch]

This was able to give me a 3D grid. Is there a difference in effects specifying the uniform fuel moisture in the tree grid vs. the surface grid?