[Carto] Map specifications

Carlos Gabriel Asato g_asato2000 at yahoo.com
Fri Apr 9 09:13:06 EDT 2010


Dear Laurent

In an old previous discussion there are a material about media output specification, please give us your impression about what we said.

http://lists.osgeo.org/pipermail/carto/2009-August/000009.html
http://lists.osgeo.org/pipermail/carto/2009-August/000010.html
http://lists.osgeo.org/pipermail/carto/2009-August/000011.html

I am also agreed that GIS usually makes bad maps but I think at this level of discussion this group is working on a "landscape model oriented cartographic program" that means a program that create cartography directly from the landscape (geographic) data model (database). Please review the overview diagram at:

http://lists.osgeo.org/pipermail/carto/2009-April/date.html

I know that european cartographers are trying to develop the architectural concepts about a real cartographic application but if this group will develop this system with open and readable structures, I think will be possible to developed something that agreed much better with cartographer expectation on top of  this system. Unfortunately, I think, concepts around how to jump from landscape model cartography to real cartographic systems are not complete mature (may be you know any other papers or developments about this matter). The best operational work I 've seen is this matter was made by a french person (old owner of a cartographic french company now bought by ESRI) who was in  Argentina about 5 years ago. I do not remeber his name but is one of the authors of this work: http://ica.ign.fr/Leicester/paper/Hardy-v2-ICAWorkshop.pdf


I hope this information will help you

My best regards

Gabriel Asato
Unidad Sensores Remotos y SIG
Servicio Geológico Minero Argentino
(SEGEMAR)
Av. Julio A. Roca 651 p 8 of 1
Cdad. Autónoma de Buenos Aires
ARGENTINA


tel 54-11-4349-3158/26
fax 54-11-4349-3287




________________________________
De: Laurent Jégou <jegou at univ-tlse2.fr>
Para: George Silva <georger.silva at gmail.com>
CC: carto at lists.osgeo.org
Enviado: viernes, 9 de abril, 2010 3:44:19
Asunto: Re: [Carto] Map specifications

Hello all, i may be a little out of focus or range, but i'd like to emphasize a point. My work as a cartographer is mostly spent on drawing software like Illustrator (or Inkscape), and i could not forget to speak here about question of the the final media for the map being designed.

The media dictates the style of the elements composing the map, and that question raises two practical problems :

- the type of the media : screen / paper (so RGB of CYMK ?)

- the size of the media : physical size and resolution (screen, printer, diffusion media).

My point is that the final media occasions significant variations of the styling of the elements. So many ugly maps are automatically produced by GIS software not taking into account that the media will be CYMK and 300 dpi (colors not distinguishable, line too thin or aliased, etc.)

With html pages the problem is incompletely treated by css variants and proportional units (em). But if we want quality PDF output, thats important. The debate on "what's can be called a map" is (re-)emerging here in France, with the temptation to kick out of the definition the "simple" maps produced by GIS or analytical softwares.

Regards and thanks for the display of motivation :-)

Laurent

-- 
Laurent Jégou
Cartographe et enseignant
UTM - Dépt. Géographie
31058 TOULOUSE Cedex 9 - 05.61.50.43.89
http://www.univ-tlse2.fr/geoprdc



      
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