topic Apply function chain to individual rasters based on units? in Python Questions

Apply function chain to individual rasters based on units?

JerryGarcia — Wed, 01 Mar 2017 15:54:53 GMT

Using Python, how do I apply a unit conversion function chain to each individual raster based on source units?

I'd like all units to be in Meters. I have a mosaic dataset containing elevation rasters with mixed source units: feet and meters.

I'd like to :

1) iterate through the mosaic dataset,

2) check the units of each raster,

3) if the raster has source units feet, then apply a unit conversion function chain (ft to m).

Rasters with source unit Meters do not need a function chain.

Thanks!

Re: Apply function chain to individual rasters based on units?

JerryGarcia — Wed, 29 Mar 2017 16:05:08 GMT

I assume it is not possible to apply a function chain via Python? Thanks!

Re: Apply function chain to individual rasters based on units?

DanPatterson_Retired — Thu, 30 Mar 2017 00:41:30 GMT

Don't use them... but is this what you are referring to? editing-function-chains-in-mosaic datasets

Re: Apply function chain to individual rasters based on units?

NeilAyres — Thu, 30 Mar 2017 05:55:38 GMT

It might be easier to shuffle through the original data to create new ones based on metres.

Re: Apply function chain to individual rasters based on units?

JerryGarcia — Thu, 06 Apr 2017 00:12:31 GMT

Yes. I need to do this w/ Python? Can you do this w/ ArcPy?

Re: Apply function chain to individual rasters based on units?

JerryGarcia — Thu, 06 Apr 2017 00:13:21 GMT

Yes. But, how do I apply a function chain when adding an image to a mosaic dataset?

Re: Apply function chain to individual rasters based on units?

DanPatterson_Retired — Thu, 06 Apr 2017 00:32:55 GMT

I see nothing in arcpy other than the ability to acquire properties through the Describe object then produce new raster objects through conventional spatial analyst tools