[postgis-users] where to publish my scripts?
ok. I will try a bit of plpgsql'ing. That reminds me to another question: is there any place that people can drop their own scripts for a wider audience? I know there is some postgis wiki but it doesn't seem very active or structured. I would love to share my scripts and see some scripts from others. chrs, Tom On 19-7-2012 15:57, Pierre Racine wrote: In my idea staying with the algebra functions should be doable, even with complex speckles. As long as the mask is big enough (finding speckles of max N pixels takes a 2N x 2N matrix) one should be able to run a neighbourhood scan outwards from the centre pixel. With some smart iterations that might work, I just need to start learning plpsql or something... Would you agree that that kind of method would be faster than vectorizing? I can't answer this as I haven't played much with ST_MapAlgebraFctNgb.. It all depends on the size of the window. Give it a try! plpgsql is very easy and you can start from the example in the doc. Pierre ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] where to publish my scripts?
Hi Tom, I personally publish these kind of scripts to the PostGIS wiki. Nicolas On 19 July 2012 17:18, Tom van Tilburg wrote: > ok. I will try a bit of plpgsql'ing. > > That reminds me to another question: > is there any place that people can drop their own scripts for a wider > audience? > I know there is some postgis wiki but it doesn't seem very active or > structured. > I would love to share my scripts and see some scripts from others. > > chrs, > Tom > > On 19-7-2012 15:57, Pierre Racine wrote: >>> >>> In my idea staying with the algebra functions should be doable, even >>> with complex speckles. >>> As long as the mask is big enough (finding speckles of max N pixels >>> takes a 2N x 2N matrix) one should be able to run a neighbourhood scan >>> outwards from the centre pixel. With some smart iterations that might >>> work, I just need to start learning plpsql or something... >>> Would you agree that that kind of method would be faster than >>> vectorizing? >> >> I can't answer this as I haven't played much with ST_MapAlgebraFctNgb.. It >> all depends on the size of the window. >> >> Give it a try! plpgsql is very easy and you can start from the example in >> the doc. >> >> Pierre >> ___ >> postgis-users mailing list >> postgis-users@postgis.refractions.net >> http://postgis.refractions.net/mailman/listinfo/postgis-users > > > ___ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] where to publish my scripts?
There is a section called "Examples of Spatial SQL" in http://trac.osgeo.org/postgis/wiki/UsersWikiMain I think this is the best place. Otherwise if you can come up with a robust, generic ST_RemoveSpeckle(rast, more parameter) plpgsql function I can add it to the trunk in the script/plpgsql folder. Those are plpgsql prototypes to be implemented in C if we find time of fund. Pierre > -Original Message- > From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users- > boun...@postgis.refractions.net] On Behalf Of Nicolas Ribot > Sent: Thursday, July 19, 2012 11:21 AM > To: PostGIS Users Discussion > Subject: Re: [postgis-users] where to publish my scripts? > > Hi Tom, > > I personally publish these kind of scripts to the PostGIS wiki. > > Nicolas > > On 19 July 2012 17:18, Tom van Tilburg wrote: > > ok. I will try a bit of plpgsql'ing. > > > > That reminds me to another question: > > is there any place that people can drop their own scripts for a wider > > audience? > > I know there is some postgis wiki but it doesn't seem very active or > > structured. > > I would love to share my scripts and see some scripts from others. > > > > chrs, > > Tom > > > > On 19-7-2012 15:57, Pierre Racine wrote: > >>> > >>> In my idea staying with the algebra functions should be doable, even > >>> with complex speckles. > >>> As long as the mask is big enough (finding speckles of max N pixels > >>> takes a 2N x 2N matrix) one should be able to run a neighbourhood scan > >>> outwards from the centre pixel. With some smart iterations that might > >>> work, I just need to start learning plpsql or something... > >>> Would you agree that that kind of method would be faster than > >>> vectorizing? > >> > >> I can't answer this as I haven't played much with ST_MapAlgebraFctNgb.. It > >> all depends on the size of the window. > >> > >> Give it a try! plpgsql is very easy and you can start from the example in > >> the doc. > >> > >> Pierre > >> ___ > >> postgis-users mailing list > >> postgis-users@postgis.refractions.net > >> http://postgis.refractions.net/mailman/listinfo/postgis-users > > > > > > ___ > > postgis-users mailing list > > postgis-users@postgis.refractions.net > > http://postgis.refractions.net/mailman/listinfo/postgis-users > ___ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
