Hi,
There are many options. I sometimes use the point sampling tool (with a rater
having class data) and then export to excel or libreoffice and do a cross
tabulation. Some option are available directly in qgis. Be aware that most
plugins that deal with zonal statistics may will not work if you have multi
polygons.
Nicolas
http://www.qgistutorials.com/fr/docs/sampling_raster_data.html
https://conservationecology.wordpress.com/tag/zonal-statistics/
https://docs.qgis.org/2.2/en/docs/user_manual/plugins/plugins_zonal_statistics.html
https://anitagraser.com/2013/02/02/group-stats-tutorial/
> Le 28 nov. 2016 à 21:38, K Imran M [via OSGeo.org]
> <[email protected]> a écrit :
>
> Dear all,
>
> I apologize if this has been asnwered before. My question is:
>
> if I have 2 layers- one is a vector (points in shapefile format) layer and
> the other one is a raster layer (flood area). And I would like to count the
> number of points inside the flood area. How can I do that? Should I convert
> the raster to vector first? Can anyone kindly refer me to any resource if you
> know any?
>
> Best regards.
>
> Kamarul
>
> ---------------------------------------------------------------------
>
> Kamarul Imran Musa (MD MCommunityMed)
> Associate Professor (Epidemiology and Biostatistics) &
> Public Health Physician,
>
>
>
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