[mapserver-dev] RFC 102: Styleitem Javascript Plugin

[Alan Boudreault]

Templates is a very good use case. There is a lot a templating libs and 
tools in Javascript.

LUA ? JavaScript is so much more popular and accessible. As client-side 
and server side also now, there are a lot of JS devs.

Alan

On 13-08-20 05:44 AM, Umberto Nicoletti wrote:
> Interesting.
> As Steve said one attractive use of a scripting engine embedded in
> mapserver could be in dynamic query templates.
>
> Alan, was there a particular reason for choosing V8 instead of other
> engines like LUA?
>
> Umberto
>
>
> On Mon, Aug 19, 2013 at 7:52 PM, Lime, Steve D (MNIT)
> <Steve.Lime at state.mn.us <mailto:Steve.Lime at state.mn.us>> wrote:
>
>     I remember chatting about this a bit at FOSS4G-NA. Javascript has
>     such broad support these days it seems a reasonable choice for an
>     embedded language. Could presumably consider others. Have you
>     actually got this integration working even in just a simple way? I'd
>     be interested in seeing code. I could see templates evolving this
>     way. That is, we expose the result set and other query/render time
>     values. With the other potential uses out there we should make sure
>     exposing objects can be done using a standard syntax.
>
>     Steve
>
>     ________________________________________
>     From: mapserver-dev-bounces at lists.osgeo.org
>     <mailto:mapserver-dev-bounces at lists.osgeo.org>
>     [mapserver-dev-bounces at lists.osgeo.org
>     <mailto:mapserver-dev-bounces at lists.osgeo.org>] on behalf of Alan
>     Boudreault [aboudreault at mapgears.com <mailto:aboudreault at mapgears.com>]
>     Sent: Monday, August 19, 2013 12:27 PM
>     To: thomas bonfort
>     Cc: mapserver-dev at lists.osgeo.org <mailto:mapserver-dev at lists.osgeo.org>
>     Subject: Re: [mapserver-dev] RFC 102: Styleitem Javascript Plugin
>
>     All,
>
>     - V8 allows us to embed a javascript interpretor in an application. It
>     implements ECMAScript 5th edition and runs on Windows, Mac and Linux.
>
>     The idea behind its addition is to have a scripting language to
>     implement various plugins. The one suggested here is a plugin that
>     generates styles, but we could imagine some other use cases: ie. a new
>     datasource that return the shape object from a javascript plugin or
>     maybe the ability to use a javascript plugin to extend the geomtransform
>     for a specific case.
>
>     V8 provide an embeded javascript engine (syntax, interpretation,
>     execution) and it is absolutely not related to anything *client-side*
>     (browser). So no, it is not needed for scribeUI.
>
>     - The shapeObj will be exposed as a wrapper created for the v8 engine. I
>     will only expose shape attributes for this RFC. A new rfc will be
>     written later for a *complex symbology plugin* and the geometry will be
>     expose for this need.
>
>     - nothing to push in a branch yet
>
>     On 13-08-19 12:50 PM, thomas bonfort wrote:
>      > Alan,
>      > - For those of us who haven't followed up closely on the v8
>     engine and
>      > its possibilities, could you expand your RFC or follow up here with
>      > some use-cases where this would be used in mapserver? Is this
>      > something that is needed for scribeUI?
>      > - How and what do you plan on exposing of a shapeObj to V8? Direct
>      > member access or wrappers? Will you expose only attributes or also
>      > geometry?
>      > - You seem to have some or most of the code ready? Can you push your
>      > branch publicly?
>      >
>      > thanks,
>      > Thomas
>      >
>      > On 19 August 2013 18:17, Alan Boudreault
>     <aboudreault at mapgears.com <mailto:aboudreault at mapgears.com>> wrote:
>      >> Devs,
>      >>
>      >> Please take a look at RFC 102 which propose the addition of a
>     styleitem
>      >> javascript plugin as an alternative to style our features.
>      >>
>      >> http://mapserver.org/development/rfc/ms-rfc-102.html
>      >>
>      >> I'll be calling for vote on it next week.
>      >>
>      >> Thanks,
>      >> Alan
>      >>
>      >> --
>      >> Alan Boudreault
>      >> http://www.mapgears.com/
>      >> _______________________________________________
>      >> mapserver-dev mailing list
>      >> mapserver-dev at lists.osgeo.org <mailto:mapserver-dev at lists.osgeo.org>
>      >> http://lists.osgeo.org/mailman/listinfo/mapserver-dev
>
>
>     --
>     Alan Boudreault
>     http://www.mapgears.com/
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>
>
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>


-- 
Alan Boudreault
http://www.mapgears.com/