[postgis-users] How do you use PostGIS Raster?

[Pierre Racine]

Thanks Santosh,

Could you tell us more on what you do on the server side? "PGRaster" you mean PostGIS Raster? Or the old pgraster?

Pierre

> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-
> bounces at postgis.refractions.net] On Behalf Of Santosh Gaikwad
> Sent: Thursday, June 09, 2011 4:54 AM
> To: PostGIS Users Discussion
> Subject: Re: [postgis-users] How do you use PostGIS Raster?
> 
> HI,
> 
> Look at the following application of Ecological Sensitive Area (ESA) of western
> ghats (one of the biodiversity hotspot) of India. We have used PGRaster in this
> case.
> 
> http://www.wetlandsofindia.org/geoserver/www/esa/esa.html (It works well in
> Firefox)
> 
> Thanks,
> 
> Santosh Gaikwad
> 
> 
> On Thu, Jun 9, 2011 at 1:12 PM, Javier de la Torre <jatorre at vizzuality.com>
> wrote:
> 
> 
> 	Hi,
> 
> 	We are planning on using it to calculate carbon sequestration on
> protected areas. This is a project by the Convention on Biological Diversity
> 
> 	http://www.cbd.int/lifeweb/carbon/
> 
> 	It basically is an intersection of a raster with bit vectors.
> 
> 	Best,
> 
> 
> 	Javier.
> 
> 
> 	On Jun 8, 2011, at 10:09 PM, Mathieu Basille wrote:
> 
> 
> 		Dear Pierre,
> 
> 		Here, we are using PostGIS to analyze large datasets combining
> rasters and vectors. Basically, we are looking at movement and habitat selection
> in a predator-prey system, using GPS-collar data over large areas. The major use
> of PostGIS Raster is for the intersection of prey steps (line segments or buffers
> around these segments) with different raster: Landsat (landcover type), slope,
> road density, relative probability of occurrence of the predator, etc. Note that
> we first tried to use ArcGIS for this step, without success, due to many bugs and
> the need to correct them by hand (which was largely too time-consuming). We
> also used PostGIS Raster to intersect predator locations with the Landsat map to
> estimate Resource Selection Functions (RSF) in order to build maps of relative
> probability of occurrence. In the end, information of the intersections were used
> in R to characterize movements of the preys on the landscape.
> 
> 		Best,
> 		Mathieu Basille.
> 
> 
> 		Le 03/06/2011 08:28, Pierre Racine a écrit :
> 
> 
> 			Hi all,
> 
> 
> 
> 			I'm preparing a presentation and I need some use cases
> for PostGIS Raster. I would be grateful if people already using the raster side of
> PostGIS would describe what they already do it. Bborie, Jorge, Regina, others?
> These uses cases are vital for the project.
> 
> 
> 
> 			On my side we are using PostGIS raster to do
> raster/vector analysis over large datasets. Basically determining mean values for
> temperature (raster), elevation (raster) for fauna observations (point buffers).
> Converting everything to vector and using desktop solutions proved
> impracticable for datasets covering the extent of Canada.
> 
> 
> 
> 			For those who did not try the raster extension yet, don't
> be shy to express your planned experiments or your expectations.
> 
> 
> 
> 			Thanks all for your contribution to the project,
> 
> 
> 
> 			Pierre
> 
> 
> 
> 	_______________________________________________
> 
> 
> 			postgis-users mailing list
> 
> 
> 			postgis-users at postgis.refractions.net
> 
> 
> 			http://postgis.refractions.net/mailman/listinfo/postgis-
> users
> 
> 
> 
> 		--
> 
> 		~$ whoami
> 		Mathieu Basille, Post-Doc
> 
> 		~$ locate
> 		Laboratoire d'Écologie Comportementale et de Conservation de
> la Faune
> 		+ Centre d'Étude de la Forêt
> 		Département de Biologie
> 		Université Laval, Québec
> 
> 		~$ info
> 		http://ase-research.org/basille
> 
> 		~$ fortune
> 		``If you can't win by reason, go for volume.''
> 		Calvin, by Bill Watterson.
> 		_______________________________________________
> 		postgis-users mailing list
> 		postgis-users at postgis.refractions.net
> 		http://postgis.refractions.net/mailman/listinfo/postgis-users
> 
> 
> 
> 
> 	_______________________________________________
> 	postgis-users mailing list
> 	postgis-users at postgis.refractions.net
> 	http://postgis.refractions.net/mailman/listinfo/postgis-users
> 
> 
> 
> 
> 
> 
> --
> Santosh S. Gaikwad,
> 
> Geo-Informatics Officer,
> Salim Ali Centre For Ornithology
> & Natural History (SACON),
> 12-13-588/B, Nagarjunanagar Colony,
> Tarnaka,Hyderabad- 500017,
> Andhra Pradesh,India.
> http://www.wetlandsofindia.org http://sacon.org Mobile :  91-8106736257
> Homepage: http://www.wetlandsofindia.org/santosh/index.html
>