[mapguide-internals] Re: OpenLayers + SVG = MapGuide Vector Viewer

Thu Sep 16 00:46:19 EDT 2010

Hi Mark,

Autodesk will probably have to speak to this one.  From what I recall, the DWF viewer functionality depends on eMap support which was dropped in Autodesk Design Review 2010.  I'm not sure that the eMap "DWF mapping plug-in" can be released by itself.  I suspect that it was coupled with the rendering stack in Design Review.  Other individuals on the list would certainly know more about the details and hopefully they will chime in.

And yes.  This is absolutely the same issue that always comes up on the list.  But I think we can add a few more...

Where's the vector viewer...
For Windows (IE9, Firefox, Chrome)?
For Mac (Safari)?
For Linux (Firefox)?
For iPad and iPhone (Mobile Safari)?
For Droid (Google Android Browser)?

So I did some digging...

http://www.codedread.com/svg-support.php

Most of the web browsers already support SVG.  And I believe a good chunk of the mobile browsers support it as well.  Personally I like the idea of being able to support six platforms with one viewer.  Not sure if it is really possible though.  It depends on how similar the SVG support is across all of them.

Regards,
Trevor

-----Original Message-----
From: mapguide-internals-bounces at lists.osgeo.org [mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of VOLZ Mark (FN)
Sent: September 15, 2010 8:36 PM
To: MapGuide Internals Mail List
Subject: RE: [mapguide-internals] Re: OpenLayers + SVG = MapGuide Vector Viewer

Folks,

Is this not the same issue that continually comes up in this forum i.e.
the dwf viewer. I currently support a number of large
organisations/utilities that swear by it for this exact reason (client
side processing) and won't be moving from MGE2010 and design reviewer
2009 until an alternative is found. Cross browser support never comes
into the equation as they will always use IE for the simple reason it
comes with the OS of the client machines and is supported by MS (even
the latest version of the Google earth client will happily use IE8 as
its default browser and run a DWF Mapguide site).

Most people like to use Mapguide as it allows them to access various
data sources live (no other web based mapping tool does this)  and
therefore they want to keep using it ... BUT the costs involved in
getting servers/network/data warehouses with enough grunt to support
ajax and/or flex layouts far exceeds the advantages of using Mapguide.
Some users are accessing tables with 10,000,000+ records and having ajax
running back and doing a spatial query every time you select an object
is rather slow.

Will Autodesk hand over the emap (DWF mapping plug-in) code to the open
source community seeing as they are no longer supporting/using it?

Using the stats from Trevor's earlier email approx 60% of users use IE
so therefore support ActiveX. Why not re-release the DWF plug-in and
call it the OSGeo plug-in and the problem is solved for 60% of users
(and with a 90% market share of Operating systems pretty much everyone
has IE they just don't use it).

No changes required to the server (dwf production code is still there
and a copy/paste of the dwf viewer php/asp pages) and a massive boost to
performance for the users who want it and for those who want pretty
looking flex layouts or plain ajax pages running on different browsers
there isn't a problem.

I'm sure that I am missing something here but it just seems like such an
obvious solution.

Mark

-----Original Message-----
From: mapguide-internals-bounces at lists.osgeo.org
[mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of Zac
Spitzer
Sent: Thursday, 16 September 2010 10:34 AM
To: MapGuide Internals Mail List
Subject: Re: [mapguide-internals] Re: OpenLayers + SVG = MapGuide Vector
Viewer

Yep, even Facebook and Google are dropping IE6 support, actually I
believe Facebook announced they would drop IE6 support the moment that
Microsoft released the first beta for IE9.

If we are going to do more vector based rendering in the browser, we
really should look at server generalisation support within MapGuide.

on the fly generalisation (excuse my aussie spelling) but also perhaps
caching those results to an intermediate sqllite cache similiar to the
tile cache.

also gzip/deflate encodings + cache headers come to mind

and of course this would also benefit our existing rendering
technologies

Canvas in OL is great for dumb layers, but doing stuff like clustering
falls down because each click involves an R-Tree search.

z

On Thu, Sep 16, 2010 at 10:14 AM, Traian Stanev
<traian.stanev at autodesk.com> wrote:
>
> Yeah, no reason to hamper progress of all platforms because of one
inferior platform.
>
> Traian
>
>
> -----Original Message-----
> From: mapguide-internals-bounces at lists.osgeo.org 
> [mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of 
> Jackie Ng
> Sent: Wednesday, September 15, 2010 8:08 PM
> To: mapguide-internals at lists.osgeo.org
> Subject: [mapguide-internals] Re: OpenLayers + SVG = MapGuide Vector 
> Viewer
>
>
> I've said it before in the past and I'll say it again:
>
> People who choose to live in the past (whether by choice or not) can 
> stick with the basic AJAX viewer.
>
> - Jackie
> --
> View this message in context: 
> http://osgeo-org.1803224.n2.nabble.com/OpenLayers-SVG-MapGuide-Vector-
> Viewer-tp5534988p5536606.html Sent from the MapGuide Internals mailing

> list archive at Nabble.com.
> _______________________________________________
> mapguide-internals mailing list
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> http://lists.osgeo.org/mailman/listinfo/mapguide-internals
> _______________________________________________
> mapguide-internals mailing list
> mapguide-internals at lists.osgeo.org
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>

--
Zac Spitzer
Solution Architect / Director
Ennoble Consultancy Australia
http://www.ennoble.com.au
http://zacster.blogspot.com
+61 405 847 168
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