[Qgis-user] Wrong result with Saga Raster calculator

[Eugenio Trumpy]

Hi Pedro,


Saga is at version 2.3.1.

Here attached some pixels of the datasets.
According to the formula I put in the previous email, you have:
a=Z_top_res.tif
b=t_top_res.tif
c=temp_rical.tif

Thank you for your help, and for any info you can give me to help me!

Eugenio

________________________________
Da: Pedro Venâncio <pedrongvenancio at gmail.com>
Inviato: mercoledì 31 maggio 2017 10:36
A: frippe12573; qgis-user
Oggetto: Re: [Qgis-user] Wrong result with Saga Raster calculator

Hi Eugenio,

What SAGA version are you using?

Can you share some sample data?

Best regards,
Pedro



2017-05-31 9:27 GMT+01:00 frippe12573 <frippe12573 at hotmail.com<mailto:frippe12573 at hotmail.com>>:
Hi all,

I'm in trouble with Saga Raster Calculator in QGIS 2.18.9 3a16a4e installed
via deb package on ubuntu 17.04.
I set this operation on three raster layers:

ifelse(a<500,0,((b-c)/a)*1000)

I got the resulting map, but checking the computation the pixels have no
correct values.

I tested the same operation in a proprietary software, and with
astonishment, I see that the computation
works fine. I cannot believe that! So I think I'm wrong somewhere in the
raster calculator module.

Can you help me?

Eugenio



--
View this message in context: http://osgeo-org.1560.x6.nabble.com/Wrong-result-with-Saga-Raster-calculator-tp5322429.html
Sent from the QGIS - User mailing list archive at Nabble.com.
_______________________________________________
Qgis-user mailing list
Qgis-user at lists.osgeo.org<mailto:Qgis-user at lists.osgeo.org>
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20170531/99994d8b/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: temp_rical.tif
Type: image/tiff
Size: 1280 bytes
Desc: temp_rical.tif
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20170531/99994d8b/attachment.tif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: t_top_res.tif
Type: image/tiff
Size: 1296 bytes
Desc: t_top_res.tif
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20170531/99994d8b/attachment-0001.tif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Z_top_res.tif
Type: image/tiff
Size: 2196 bytes
Desc: Z_top_res.tif
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20170531/99994d8b/attachment-0002.tif>