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ModelBuilder - IDW (SA or 3D) - Z value field - Inline Variable Error 001000

Question asked by keithnabbott on Sep 28, 2018
Latest reply on May 6, 2019 by keithnabbott



I'm not able to use an inline variable (i.e., %Value%) to populate the Z value field of the IDW tool associated with the Spatial Analyst (SA) and 3D Analyst (3D) toolboxes. The Z value field of the IDW tool associated with the Geostatistical Analyst (GA) toolbox, however, does accept an inline variable (i.e., %Value%).


Here's the model:


A precondition for all three IDW tools is the Value variable (shown using dotted arrow lines). 



The error generated for the IDW (3D) and IDW (SA) tools is:

ERROR 001000

Z value field: Field %Value% does not exist


I need to use either the 3D or SA versions of the IDW tool, because is contains an Input barrier polyline features field; the GA version does not.


Oddly, the SA and 3D IDW versions accept inline variables for the Output Raster field. 


Any idea what the issue could be? Bug?

Is there a workaround?


I'm working with ArcGIS version 10.3.1 for Desktop.


Thanks for your time and any help,