Hola amigo,<br><br><br><div class="gmail_quote"><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi.<br>
<br>
About a binary open GIS format (see below):<br>
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.<br>
What I like from DXF is that you can use also Curves, and texts. That's why I mentioned it.<br>
<br>
Another way could be to use SQLite or H2 as local geodatabases.</blockquote><div><br>You can use the H2 spatial extension available here : <a href="http://geosysin.iict.ch/irstv-trac/browser/platform">http://geosysin.iict.ch/irstv-trac/browser/platform</a>.<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
<br>
About TIN, I read about this format because I need an algorithm to obtain contours from a TIN. ¿Do you know any java code?.</blockquote><div><br>We are developing a TIN generator with hydrological functionalities (watershed, slope, aspect, contour). Some pieces of code are available here : <a href="http://geosysin.iict.ch/irstv-trac/browser/platform/processing/src/main/java/org/gdms/triangulation/sweepLine4CDT">http://geosysin.iict.ch/irstv-trac/browser/platform/processing/src/main/java/org/gdms/triangulation/sweepLine4CDT</a><br>
It's GPL 3.<br><br>Be careful, it's under development. It will be finished in some weeks maybe 2.<br><br>Kenavo<br><br>R1.<br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<br>
Cheers, and very good initiative this list.<br>
<br>
Fran Peñarrubia.<br>
gvSIG team.<br>
<br>
Sunburned Surveyor escribió:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Welcome to the new mailing list Francisco!<br>
<br>
You wrote: "For example, some time ago, I read a mail from Frank<br>
Warmerdam about the necessity to define a good geo-format for files.<br>
Maybe something simillar to .shp, but without its limitations<br>
(problems to edit, lack of text support, etc). (bxml may be THE<br>
solution??)"<br>
<br>
I had started work on a draft schema for such a format, which you can<br>
learn about here:<br>
<br>
<a href="http://thejumppilotproject.pbwiki.com/Binary+Open+Feature+Format" target="_blank">http://thejumppilotproject.pbwiki.com/Binary+Open+Feature+Format</a><br>
<br>
BOFF defined a binary format that was meant to serve as an alternate<br>
to Shapefiles. I never followed up on the spec, unfortunately. This is<br>
something I should consider completing...<br>
<br>
You wrote: "Or starting with a enhanced DXF, etc."<br>
<br>
I'm curious what you had in mind when you talk about "enhanced DXF".<br>
I'm a big user of DXF and DWG, so this is a topic I'm interested in. I<br>
will note that the DXF format already supports a lot of entities that<br>
we can't work with in OpenJUMP. Things like text, annotations, basic<br>
blocks, external references, and viewports come to mind.<br>
<br>
You wrote: "Not only vectorial: to push TIN formats like this:<br>
<a href="http://www.vterrain.org/Implementation/Formats/ITF.html" target="_blank">http://www.vterrain.org/Implementation/Formats/ITF.html</a> or some raster<br>
formats."<br>
<br>
We're working on an open source library for the creation and<br>
manipulation of TINs right now as part of OpenJUMP's involvement in<br>
Google Summer of Code. Right now were just working on the creation of<br>
TINs from point files (CSV I think), but I know we would be interested<br>
in supporting an "official" TIN format in the future.<br>
<br>
Landon<br>
<br>
<br>
<br>
On Tue, May 20, 2008 at 3:25 PM, Francisco José Peñarrubia<br>
<<a href="mailto:fpenarru@gmail.com" target="_blank">fpenarru@gmail.com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi all.<br>
<br>
Maybe this is a good place to start some discussions that may continue in<br>
meetings and hacking events like this:<br>
<a href="http://wiki.osgeo.org/wiki/OSGeo_Hacking_event" target="_blank">http://wiki.osgeo.org/wiki/OSGeo_Hacking_event</a><br>
It could be interesting to define some areas to develop in common, and see<br>
how they can be useful for every Open Source project.<br>
<br>
For example, some time ago, I read a mail from Frank Warmerdam about the<br>
necessity to define a good geo-format for files. Maybe something simillar to<br>
.shp, but without its limitations (problems to edit, lack of text support,<br>
etc). (bxml may be THE solution??)<br>
Or starting with a enhanced DXF, etc. Not only vectorial: to push TIN<br>
formats like this: <a href="http://www.vterrain.org/Implementation/Formats/ITF.html" target="_blank">http://www.vterrain.org/Implementation/Formats/ITF.html</a><br>
or some raster formats.<br>
<br>
More ideas?<br>
<br>
Cheers.<br>
<br>
Fran Peñarrubia<br>
gvSIG team.<br>
<br>
PS: I think SLD discussion is good and also useful.<br>
(<a href="http://lists.osgeo.org/pipermail/java-collab/2008-May/000001.html" target="_blank">http://lists.osgeo.org/pipermail/java-collab/2008-May/000001.html</a>)<br>
<br>
PS2: I tryed "reply" to e-mail from Thunderbird and the reply goes to the<br>
sender, not to the list. Maybe the administrator of the list can change this<br>
behaviour, to reply to the list by default. (Thanks in advance)<br>
<br>
andrea antonello escribió:<br>
<br>
Hi Miguel, all,<br>
<br>
<br>
I've just joined this list, and as a member of gvSIG team, I want to show<br>
interest for this kind of collaborations.<br>
What other projects are participating in this list?<br>
<br>
<br>
I also subscribed the list as soon as I heard of it. Not exactly sure<br>
what it will be for, but following all the inter-list discussions<br>
between openjump-geotools-andsomeother, I have a good feeling about<br>
it.<br>
I'm member of the JGrass / Udig community.<br>
Cheers,<br>
Andrea<br>
<br>
<br>
Regards.<br>
---------------------------------<br>
Miguel Montesinos<br>
Director Técnico<br>
PRODEVELOP<br>
C/ Conde Salvatierra, 34 - 10<br>
46004 Valencia. Spain<br>
e-mail: <a href="mailto:mmontesinos@prodevelop.es" target="_blank">mmontesinos@prodevelop.es</a><br>
<a href="http://www.prodevelop.es" target="_blank">http://www.prodevelop.es</a><br>
Tlf: +34 963510612<div class="Ih2E3d"><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Chercheur<br>Docteur en géographie,<br>spécialité géomatique<br>École Centrale de Nantes<br>Institut de recherche en sciences et techniques de la ville<br><a href="http://www.irstv.cnrs.fr/">http://www.irstv.cnrs.fr/</a><br>
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