2 replies to this topic

[pfyfield]

Hello all-
I am running into a problem I've never encountered before. I have downloaded some of the medium-resolution (100k) datasets from the NHD available here:
ftp://nhdftp.usgs.gov/StateExtracts/Medium/FileGDB/
These are the datasets that have been around for a while, not generalized from 24k (the process Barbara Buttenfield presented at last year's NACIS).
I am running several of the feature classes through a model to clean them up for cartographic purposes. The model initially copies the feature class into a new file geodatabase, then joins to a lookup table I've made based on the FCode attribute, dissolves on the new field from my table, reprojects, and exports a shapefile. The polygons (NHDArea and NHDWaterbodies) go smoothly, but the line feature class (NHDFlowline) bombs out on the dissolve. This occurs even when I try to dissolve not using the model. The error message is "ERROR 999999 The geometry has no z values." Not sure why there would be z values in this dataset...
So, I've tried disabling "output has z values" in the "feature class to feature class" portion of my model, I also tried enabling and setting the value to zero. The dissolve still bombs out at about the same time, but I now get the more generic "general error" message.
I'm hoping somebody with more knowledge of the structure of geodatabases may know some trick...

[ceicher]

Hi Paul

1) Try disabling Ms as well as Zs?: http://forums.esri.c...p...93&t=225044

2) There are 25 Discussion Forum posts here: "The geometry has no z values"

http://support.esri.com/

3) I'm familiar with the underlying cause of this. It occurs when you try to store a geometry in a feature class. If the feature class supports Zs, then you absolutely must:

a) set your geometry to be z aware
give your geometry a z (even if it's 0)

... so, maybe there's a setting you yourself might be able to tweak: on your target feature class, in the GP tool that creates the feat class, or in the logic that creates the geometry (Dissolve GP tool I guess).

... from 1) I'd say that 3) could also hold true for Ms.

Good luck!

-Cory

[pfyfield]

Beautiful! Disabling "output has m values" as well as "output has z values" did it. Just to be on the safe side, I did this at every step in the process...
Thanks, Cory