Re: [OSGeo-Discuss] Raster catalog ideas [SEC=UNCLASSIFIED]

2010-05-04 Thread Lucena, Ivan
Hi Mike, Bruce, We went to that discussion a couple of year ago, and by that time there was some strong opinion against storing raster data on databases, but it look like time has changed things a little bit. Am I right to say that? I can see basically three reasons for that. 1. Data volume.

RE: [OSGeo-Discuss] Open File FormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]

2009-08-22 Thread Lucena, Ivan
bits.  And lots of channels (bands).  And alpha masking.  And arbitrary metadata blobs (geospatial and otherwise). -mpg -Original Message- From: [] On Behalf Of Lucena, Ivan Sent: Friday, August 21

RE: [OSGeo-Discuss] Open File FormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]

2009-08-22 Thread Lucena, Ivan
Hi Landon, It has been an interesting discussion, algorithms copyrights, most used formats, limitations, internal details, etc. I definitely agree that it got out of control and we should end some place but I and going to give you a quick answer. What are the limitations of Geotiff/JPEG

RE: [OSGeo-Discuss] Open File FormatsandProprietaryAlgorithms[SEC=UNCLASSIFIED]

2009-08-21 Thread Lucena, Ivan
spoke about some of these technologies being somewhat obsolete what with the new network and bandwidth speeds available for publishing. bobb Lucena, Ivan wrote: But you can't compress data types other than byte in JPG. Can you do that in JP2K

Re: [OSGeo-Discuss] RE: Open source TIN code?

2009-03-02 Thread Lucena, Ivan
Here goes another one from TerraLib: ---Original Message--- From: Wolf Bergenheim Subject: Re: [OSGeo-Discuss] RE: Open source TIN code? Sent: Mar 02 '09 19:46 Again this is GPL,

RE: [OSGeo-Discuss] Re: Raster data on RDBMS

2008-10-31 Thread Lucena, Ivan
joining two tiles) 5) Partial tiles - when you split up an image, it rarely fits perfectly into your chosen tile size. What do you do with the leftovers? More? Another 2 cents, Roger From: [EMAIL PROTECTED] on behalf of Lucena, Ivan

Re: [OSGeo-Discuss] Re: Raster data on RDBMS

2008-10-30 Thread Lucena, Ivan
Paul, That is not the answer your are waiting for but... IMHO, once you overcome the mythical concept that a database server will always perform slower than a direct file access then Spatial is not special anymore! [who said that?] and you can think on the benefits just like a banker or an

Re: [OSGeo-Discuss] Raster data on RDBMS

2008-10-29 Thread Lucena, Ivan
Frank, My point is that a tile caching approach is really comparing tile caching performance to rendering-on-demand performance while I think the original point was that rendering-from-database and rendering-from-filesystem could have similar performance for input raster data. D'accord.

RE: [OSGeo-Discuss] Raster data on RDBMS

2008-10-29 Thread Lucena, Ivan
users from disclosing the results of benchmark tests.  Be careful how you represent these results. Jason -Original Message- From: Lucena, Ivan Subject: [OSGeo-Discuss] Raster data on RDBMS I would like to return to a discussion that we had months ago about raster

Re: [OSGeo-Discuss] kicked the ESRI habit, now weening from Bentley MicroStation..looking toward FOSS4G

2008-10-28 Thread Lucena, Ivan
Hi Joe, I've been researching OS for about one year now and have seen the light. Also with an anticipated move outside of the United States soon (Brazil, Italy, Greece or Australia), I think having the skills to I think I'll leave my rant at that for now - I am also interested in

[OSGeo-Discuss] Raster data on RDBMS

2008-10-28 Thread Lucena, Ivan
Hi There, I would like to return to a discussion that we had months ago about raster on RDBMS. But this time I would like to present some number. As long as I could recall there was basically two major arguments contrary to storing raster on RDBMS. One very pragmatical: Why waste precious

Re: [OSGeo-Discuss] Raster data on RDBMS

2008-10-28 Thread Lucena, Ivan
comparison. Even if you end up with the same numbers for both processes, I'll still be impressed, since I assumed Oracle would have a higher overhead. P. On Tue, Oct 28, 2008 at 9:54 PM, Lucena, Ivan [EMAIL PROTECTED] wrote: Hi There, I would like to return to a discussion that we

Re: [OSGeo-Discuss] some post-FOSS4G thoughts

2008-10-07 Thread Lucena, Ivan
Last year the organization published a very nice report. That will certainly take some time do put all the number together as nice I they did before but I believe that it will help someone like me, who did not attended, to have a good perspective of what we should expect for Sydney. Dave

Re: [OSGeo-Discuss] Brief history of GIS OSS (bit off topic?)

2008-08-20 Thread Lucena, Ivan
George, I am using to build this system PostgreSQL + PostGIS, QGis and PHP. In advance i would like to thank David Bitner who helped me alot by letting me use his geocoding function for PostGIS. I guess you should also find support from a native FOSS project in your country,

Re: [OSGeo-Discuss] South African safety situation

2008-05-30 Thread Lucena, Ivan
Gavin, My South Africans friends here in the US and I are deeply concern about that situation too. I just wanted to add that thanks to economic growth and social reforms, Brazil is now a moving target on what concern wealth concentration index. Brazilian business, factories and agriculture

Re: [OSGeo-Discuss] AAG Boston OSGeo Social Meetup

2008-04-17 Thread Lucena, Ivan
Sorry. I'm sick. Can't go. Raj Singh wrote: I'll be there by 9! --- Raj On Apr 15, 2008, at 9:51 PM, Christopher Schmidt wrote: AAG is happening in Boston this week, and in an effort to make some things happen, I'm planning to have a social meetup this Thursday with anyone who is interested

Re: [OSGeo-Discuss] AAG Boston Social Next Week

2008-04-10 Thread Lucena, Ivan
Alex, I am nearby, Central-Mass. I wasn't planning to go to AAG but if there is some OSGeo stuff event that I can attend I might change my plans. Regards, Ivan Alex Mandel wrote: So any progress planning an OSGeo social next week for the AAG in Boston. I know we've got at least 10 people

Re: [OSGeo-Discuss] OS Spatial environment 'sizing'

2008-02-19 Thread Lucena, Ivan
Hi Randy, Bruce, That is a nice piece of advise Randy. I am sorry to intrude the conversation but I would like to ask how that heavy raster manipulation would be treated by PostgreSQL/PostGIS, managed or unmanaged? Best regards, Ivan Randy George wrote: Hi Bruce, On

Re: [OSGeo-Discuss] OS Spatial environment 'sizing' + Image Management

2008-02-19 Thread Lucena, Ivan
: Lucena, Ivan [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 19, 2008 2:59 PM To: [EMAIL PROTECTED]; OSGeo Discussions Subject: Re: [OSGeo-Discuss] OS Spatial environment 'sizing' Hi Randy, Bruce, That is a nice piece of advise Randy. I am sorry to intrude the conversation but I

Re: [OSGeo-Discuss] Planet OSGeo

2008-02-13 Thread Lucena, Ivan
Me too. Some time I feel like blogging. Cameron Shorter wrote: I like the idea and would like to provide occasional content. ___ Discuss mailing list

Re: [OSGeo-Discuss] Does Open Source need a supervisory government body?

2008-01-25 Thread Lucena, Ivan
Bruce, That sounds like removing the F from FOSS or should I say, that is a bazaar inside a cathedral. :) Seriously now, IMHO, as an FOSS contributor and a commercial software developer that uses FOSS, I believe that there is a complicated process of getting to the point to embrace a FOSS

Re: [OSGeo-Discuss] Re: FOSS4GIS business models

2008-01-08 Thread Lucena, Ivan
a little light on the cultural differences that could lead to misunderstanding from outsiders. The article does mention Forum participation and language barriers as an issue. Ciao, Ivan Paolo Cavallini wrote: Lucena, Ivan ha scritto: I believe that TerraLib would deserve a better technical

Re: [OSGeo-Discuss] Re: FOSS4GIS business models

2008-01-07 Thread Lucena, Ivan
Hi Bruce, [EMAIL PROTECTED] wrote: wrt the Brazillian TerraLib toolkit mentioned in your paper: - I've had a quick look at the web site. The product appears to be quite mature and functional. - Has anyone from this list had a technical look at the products and like to share their

Re: [OSGeo-Discuss] Re: FOSS4GIS business models

2008-01-03 Thread Lucena, Ivan
Hi all, I am *not* going to disagree with Andrea, Gilberto, Paul, Howard or anybody else. I just want to point out a interesting open source business model that is making a big impact this days. I am talking about Xen []. I keep reading news and more news

Re: [OSGeo-Discuss] GIS Data Models

2007-11-30 Thread Lucena, Ivan
Landon, There it goes: Landon Blake wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? ( There it goes: SPRING: Integrating Remote Sensing and GIS with

Re: [OSGeo-Discuss] idea for an OSGeo project -- a new, open data format

2007-11-15 Thread Lucena, Ivan
Sampson, I am not a GML guru and I don't know if a binary version exists already, but I would imagine that HDF5 would be a excellent choice by its own hierarchical nature. I mean, we can use GML as a schema to store the data in binary format in the HDF5 format. Best regards, Ivan Sampson,

Re: [OSGeo-Discuss] Re: idea for an OSGeo project -- a new, open data format

2007-11-14 Thread Lucena, Ivan
Frank, I was watching this PyTables video [] and one thought came to my mind: HDF5 can easily be used to store and retrieve vector, raster and attribute tables. We would need to standardize a schema tough. Best regards, Ivan PS. I am not that