[Qgis-user] Zonal Statistics Computation

[Blumentrath, Stefan]

Related to this one: https://hub.qgis.org/issues/11135
?
Cheers
Stefan

From: qgis-user-bounces at lists.osgeo.org [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of Leo Kris Palao
Sent: 12. mars 2015 11:06
To: QGIS Mailing List
Subject: [Qgis-user] Zonal Statistics Computation

Hi QGIS Users,

I would like to ask if anybody have experienced getting different results using A) Zonal Statistics Plugin and B) Zonal Statistics in Graphical Modeler?

Here is the description of our Dataset:

Vector
5 features (2 features have area of 1.74 and 1.89 ha; 3 features have less than 1 ha. area). These are farmer plots.

Raster
pixel size is 180m X 180m = 3.24ha.

Processing

Running Zonal Statistics in Graphical Modeler:
Only computes realistic statistics for 2 features (area having 1.74 and 1.89 ha) but gives weird computation for features having less than 1 ha. For features less than 1 ha, it gives values 0.0000 and 1.0000

Running Zonal Statistics in Raster > Zonal Statistics > Zonal Statistics:
It gives realistic values for all features.

This happens in QGIS "Brighton" and "Wien".

Thanks,
-Leo
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20150312/be327f3a/attachment.html>