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agrc / forklift

:tractor::package::sparkles: Slinging data all over the place :tractor::package::sparkles:
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Default geographic transformation breaks project if source is not 26912 #281

Closed stdavis closed 5 years ago

stdavis commented 5 years ago

Steps to reproduce

  1. Set up a crate to point to a source that is not 26912 without setting any destination coordinate system or geographic transformation.

Expected behavior

The output is projected to 3857 with whatever default geographic transformation that Esri chooses when one isn't passed into the Project tool.

Actual behavior

The pallet fails with ERROR 000365: Invalid geographic transformation. because it attempts to use NAD_1983_To_WGS_1984_5 which is specific to the from and to datums for 26912 -> 3857.

Perhaps we should not default to NAD_1983_To_WGS_1984_5 and make that a requirement of the pallet if you really want to use that one? This would require us to add it to all pallets that care about that level of accuracy.

steveoh commented 5 years ago

I'd rather only modify pallets that have special needs.

Since we set likely defaults and allow those to be modified, my vote is that we do nothing.

stdavis commented 5 years ago

Likely defaults only for those of us that use 26912. But yes, I can understand happy-pathing for our systems.