[Fwd: Re: [Java-collab] Greetings to this list]

[Francisco José Peñarrubia]

Hi.

About a binary open GIS format (see below):
I think the point is to obtain a format with quick random access (shp 
file is ok) and with the possibility to edit features (add, modify, 
delete) without writing the whole file.
What I like from DXF is that you can use also Curves, and texts. That's 
why I mentioned it.

Another way could be to use SQLite or H2 as local geodatabases.

About TIN, I read about this format because I need an algorithm to 
obtain contours from a TIN. ¿Do you know any java code?.

Cheers, and very good initiative this list.

Fran Peñarrubia.
gvSIG team.

Sunburned Surveyor escribió:
> Welcome to the new mailing list Francisco!
>
> You wrote: "For example, some time ago, I read a mail from Frank
> Warmerdam about the necessity to define a good geo-format for files.
> Maybe something simillar to .shp, but without its limitations
> (problems to edit, lack of text support, etc). (bxml may be THE
> solution??)"
>
> I had started work on a draft schema for such a format, which you can
> learn about here:
>
> http://thejumppilotproject.pbwiki.com/Binary+Open+Feature+Format
>
> BOFF defined a binary format that was meant to serve as an alternate
> to Shapefiles. I never followed up on the spec, unfortunately. This is
> something I should consider completing...
>
> You wrote: "Or starting with a enhanced DXF, etc."
>
> I'm curious what you had in mind when you talk about "enhanced DXF".
> I'm a big user of DXF and DWG, so this is a topic I'm interested in. I
> will note that the DXF format already supports a lot of entities that
> we can't work with in OpenJUMP. Things like text, annotations, basic
> blocks, external references,  and viewports come to mind.
>
>  You wrote: "Not only vectorial: to push TIN formats like this:
> http://www.vterrain.org/Implementation/Formats/ITF.html or some raster
> formats."
>
> We're working on an open source library for the creation and
> manipulation of TINs right now as part of OpenJUMP's involvement in
> Google Summer of Code. Right now were just working on the creation of
> TINs from point files (CSV I think), but I know we would be interested
> in supporting an "official" TIN format in the future.
>
> Landon
>
>
>
> On Tue, May 20, 2008 at 3:25 PM, Francisco José Peñarrubia
> <fpenarru at gmail.com> wrote:
>   
>> Hi all.
>>
>> Maybe this is a good place to start some discussions that may continue in
>> meetings and hacking events like this:
>> http://wiki.osgeo.org/wiki/OSGeo_Hacking_event
>> It could be interesting to define some areas to develop in common, and see
>> how they can be useful for every Open Source project.
>>
>> For example, some time ago, I read a mail from Frank Warmerdam about the
>> necessity to define a good geo-format for files. Maybe something simillar to
>> .shp, but without its limitations (problems to edit, lack of text support,
>> etc). (bxml may be THE solution??)
>> Or starting with a enhanced DXF, etc. Not only vectorial: to push TIN
>> formats like this: http://www.vterrain.org/Implementation/Formats/ITF.html
>> or some raster formats.
>>
>> More ideas?
>>
>> Cheers.
>>
>> Fran Peñarrubia
>> gvSIG team.
>>
>> PS: I think SLD discussion is good and also useful.
>> (http://lists.osgeo.org/pipermail/java-collab/2008-May/000001.html)
>>
>> PS2: I tryed "reply" to e-mail from Thunderbird and the reply goes to the
>> sender, not to the list. Maybe the administrator of the list can change this
>> behaviour, to reply to the list by default. (Thanks in advance)
>>
>> andrea antonello escribió:
>>
>> Hi Miguel, all,
>>
>>
>> I've just joined this list, and as a member of gvSIG team, I want to show
>> interest for this kind of collaborations.
>> What other projects are participating in this list?
>>
>>
>> I also subscribed the list as soon as I heard of it. Not exactly sure
>> what it will be for, but following all the inter-list discussions
>> between openjump-geotools-andsomeother, I have a good feeling about
>> it.
>> I'm member of the JGrass / Udig community.
>> Cheers,
>> Andrea
>>
>>
>> Regards.
>> ---------------------------------
>> Miguel Montesinos
>> Director Técnico
>> PRODEVELOP
>> C/ Conde Salvatierra, 34 - 10
>> 46004 Valencia. Spain
>> e-mail: mmontesinos at prodevelop.es
>> http://www.prodevelop.es
>> Tlf: +34 963510612
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>>
>>
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