Hi,

My name is Alex and I work at Hispatec Analytics as Gis Engineer.

I trying to make 2 wps requests in xml format in Geoserver.

Having 14-band raster ImageMosaic stored, I need to calculate the mean value of 
a given satellite index for a specific date of that imagemosaic.

And the same but for only a selection of that layer.

My first idea was to create a chain wps process:

wps:Jiffle to calculate the index and ras: CoverageClassStats with a single 
class to calculate the mean of the entire layer.

I started by trying to calculate the statistics and I ran into the problem of 
not knowing how to indicate the date of the raster that I wanted to use for the 
calculations.

I use Jiffle based styles to calculate indices on the fly and it works fine. So 
I don't know what the problem could be with that, but I have never used the 
ras: Jiffle function.

My goal is to create an external call with python that has as variables: 
layer_name, layer_date, index_formula

And the second part is to add the option to pass a polygon as a parameter and 
calculate the above only from the desired area. Chaining crop to the previous 
call or something like that.

One of the uses of this call is to draw on a graph the evolution of the index 
in the last year. This involves calculating the average for about 50 dates.

Could you help me with this?

Thanks for all



[cid:image001.jpg@01D6EDF3.C3286A90]

[cid:image002.png@01D6EDF3.C3286A90]


Alejandro Rogado

GIS Engineer

Phone | +34 639 416 158

arog...@hispatecanalytics.com


[cid:image003.png@01D6EDF3.C3286A90]<https://twitter.com/HispAnalytics>  
[cid:image004.png@01D6EDF3.C3286A90] 
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