Re: R: [postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-05 Thread Frank Koormann
* Ludovico Bianchini [EMAIL PROTECTED] [070904 16:03]: I have this question: is there a parameter simmetric to TOWGS? If so the project library shall use FROMWGS to convert from the gps system and TOWGS to convert to the gps system. Sorry if the question is stupid, but I don't understand how

R: [postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-04 Thread P . Rizzi Ag . Mobilità Ambiente
: lunedì 3 settembre 2007 21.39 A: postgis-users@postgis.refractions.net Oggetto: [postgis-users] precision of GeomFromTex,Transform and text functions Hi all, I'm using this postgis function: - GeomFromText(text, int4) to create a geometry value in 4326 spatial_ref_sys - Transform

Re: R: [postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-04 Thread Ludovico Bianchini
- Da: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] conto di P.Rizzi Ag.Mobilità Ambiente Inviato: martedì 4 settembre 2007 11.25 A: PostGIS Users Discussion Oggetto: R: [postgis-users] precision of GeomFromTex,Transform and text functions Probably it does not matter to you

R: R: [postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-04 Thread P . Rizzi Ag . Mobilità Ambiente
: [postgis-users] precision of GeomFromTex,Transform and text functions Thanks for the suggestion, actually there were not the toWGS parameter in spatial_ref_sys table. The situation seems to be a little better (here a sequence of insert-select: Insert:37.13953463591601 45.66405322544534

Re: R: R: [postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-04 Thread Ludovico Bianchini
: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] conto di Ludovico Bianchini Inviato: martedì 4 settembre 2007 16.02 A: PostGIS Users Discussion Oggetto: Re: R: [postgis-users] precision of GeomFromTex,Transform and text functions Thanks for the suggestion, actually there were

[postgis-users] precision of GeomFromTex, Transform and text functions

2007-09-03 Thread Ludovico Bianchini
Hi all, I'm using this postgis function: - GeomFromText(text, int4) to create a geometry value in 4326 spatial_ref_sys - Transform(geometry, int4) to convert a geometry from 4326 to 26591 when I'm inserting a record and to convert 26591 to 4326 when I'm selecting records - text(geometry) to