I haven't tested it through the REST API but there are separate default 
interpolation method settings for WCS and WMS.

The WCS setting is in the coverage.xml and is one of "nearest neighbor", 
"bilinear" and "bicubic":
<defaultInterpolationMethod>bicubic</defaultInterpolationMethod>

The WMS setting is in the layer.xml and is one of "Nearest", "Bilinear" and 
"Bicubic":
<defaultWMSInterpolationMethod>Bicubic</defaultWMSInterpolationMethod>

Steve Ikeoka


________________________________
From: Tyler Youschak <[email protected]>
Sent: Wednesday, May 8, 2019 10:03 PM
To: GeoServer Mailing List List
Subject: [Geoserver-users] Issue with rest API and per layer interpolation


Hello all,

Currently through the rest api I make a post request to coverage stores to add 
my store. I thin make a post request to /workspaces/{name}/coverages that 
contain information. Additionally, I have these lines in there specifically:
"interpolationMethods" => [
"string" => [
"bilinear"
]
],
"defaultInterpolationMethod" => "bilinear",

I then make a put request to /layers/{name}:{layer_name} and my layer is 
enabled. The issue is that the layer is being interpolated by the "default WMS 
settings" even though I specifically said for it to use bilinear interpolation.
[cid:5cd3b401d638a54402000007]
[cid:5cd3b3fbd638a54402000006]
Is it possible to edit that "Default Interpolation Method" via the API so I can 
get it to be bilinear?

For some reason Services > WMS > Raster Rendering Options > Default 
Interpolation of Nearest neighbor is overriding what I am selecting and it's 
making no sense.

I appreciate any help.

Thanks,
Tyler Youschak
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