[Gvsig_english] regarding new symbology and labelling of gvsig 2.0 devel

[Francisco José Peñarrubia]

Hi Wolfgang.

Jaume gave me this message for you :-) :

"Of course SVG support is included. I've widely tested it when I was in 
the project and works gracefully apart a little change that has to be 
done for files made by Inkscape. But once this change is made (adding or 
removing one attribute, not sure) they are ok. The symbol editor allows 
to create such symbols and many other types and combine them. And SVG is 
also used in labeling. That means labels can contain styles with pics or 
templates like traffic signs where you define where to put the text 
inside the label which text symbol (not only font and size but 
formatting, etc...) and render it together the style.

And about the labeling, not sure what do you mean. If you talk about the 
labeling in the extSymbology extension which includes the smart labeling 
engine, well I'll give some tips. This new labeling engine detects 
conflicts and tries to relocate the label, it also uses the label styles 
and a label expression calculator to allow dynamic text creation. At the 
time I left the project (three months ago) this calculator only had two 
or three string functions. But extending it is extremely easy from a 
developer point of view, for sure the gvSIG guys did it! So, because of 
the label relocation and this dynamic and customizable text calculation 
the labeling becomes really powerful (and remains surprisingly fast). 
The bad side of this is as far new features allow lots of combinations 
and options, the dialog for the engine became a bit complicated. In my 
opinion it is true the first times you use it, but after the philosophy 
of this labeling is understood then the dialog becomes quite 
user-friendly. Specially when it is compared to the complexity of the 
engine. I guess the user's manual will throw light upon this feature, at 
least lots of new pages to be read for sure :P.

I hope you enjoy it and find it useful.

Best regards,
Jaume "

By the way,  gvSIG 1.x already supports SVG files in maps. You can add 
them to the map inserting a picture. About North Arrows, Silvio Grosso 
[1] send to us a big collection of North Arrows in SVG format (thanks 
again Silvio) and they are included in the last stable release (I think).

[1]: 
http://www.nabble.com/Brand-new-set-of-50-North-arrows-for-the-Gvsig%27s-community-td14707341.html#a14707341

Cheers.



Wolfgang Qual escribió:
> Hi developers,
> first of all: congratulations for the already visible improvements of
> the symbology (Jaume?)! It looks really nice and I am looking forward to
> seeing all this in the next official release.
>
> What came to me, when I found some great svg-symbol-stuff on the web
> (see one of my last postings): will it be possible to add selfmade /
> custom svg symbols to the symbol-library? That'll be great!
>
> Regarding labelling: I could not find a dropdown field for the attribute
> column to be used for labelling in the extended labelling options
> window. Only a "complicated" dialogue to add the field number.
>
> Best,
> Wolfgang
>
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