[OpenLayers-Users] slimming OL

[Shawn Oatley]

You will need to determine what functionality you need from OpenLayers
first.  By using custom builds (build.py) I've been able to shrink my OL
file down to 336 KB (without compression).  I am sure others have gotten
it smaller, but this is the size that I need in order to do what I want
with OL.
This page helped me:
http://trac.openlayers.org/wiki/Profiles or this
http://docs.openlayers.org/library/deploying.html#building-the-single-file-build
 and I am sure there are more.  The OpenLayerer looks pretty simple once
you've figured out what functionality you'll need.
 
Shawn

>>> On 3/9/2010 at 9:26 AM, P Kishor <punk.kish at gmail.com> wrote:
On Tue, Mar 9, 2010 at 8:23 AM, Alexandre Dube <adube at mapgears.com>
wrote:
> Hi,
>
> You could use OpenLayerer to do so :
>
> http://openlayerer.appspot.com/ 

Wow! This is very cool (and should be advertised more prominently). Of
course, now I have another problem -- way too many choices, and not
enough guidance to choose from them.

How about something simpler? "Make my OL similar in size and
functionality to the current version of Gmaps" kinda choice.


>
> Regards,
>
> Alexandre
>
>
> P Kishor wrote:
>>
>> From Firebug's 'Net' panel, my mixed, OpenLayers, Google Maps test
page
>> shows --
>>
>> Google js
>> ----------
>> maps: 4.3 KB
>> main.js: 67.7 KB
>> vp: 661 B
>> %7Bmod_drag,mod_ctrapi%7D.js: 11.2 KB
>> vp: 660 B
>> =============
>> That totals 85 KB
>>
>> OpenLayers.js: 695.1 KB
>>
>> Why is OL almost 10 times the size of Gmaps scripts?
>>
>> If I want the functionality somewhat equivalent to what Gmaps
>> provides, can I re-build OL with fewer parts so it slims down?
>>
>> Right now OL is the largest js component of my work, more than
Gmaps
>> and jQuery combined. Partly, it seems that there are many
frameworks
>> layered on top of each other. OL depends on Prototype and other
>> frameworks, so even if I were using Prototype (I am not, but this
is
>> just for illustration), I would still get Prototype within OL,
>> duplicating stuff.
>>
>> This is one of the reasons I don't even want to look at GeoExt, and
>> MapFish and other frameworks made from OpenLayers, instead trying
to
>> accomplish my goals with just OL. From MapFish's notes, it is
>> "composed of the ExtJS, OpenLayers, GeoExt JavaScript toolkits." So
>> MapFish uses ExtJS and GeoExt and OL, and GeoExt uses ExtJS and OL,
>> and OL uses Prototype and Rico, and Rico uses Prototype. This is
very
>> circular and confusing.
>>
>>
>
>
> --
> Alexandre Dubé
> Mapgears
> www.mapgears.com 
>
>



-- 
Puneet Kishor http://www.punkish.org 
Carbon Model http://carbonmodel.org 
Charter Member, Open Source Geospatial Foundation http://www.osgeo.org

Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor

Nelson Institute, UW-Madison http://www.nelson.wisc.edu 
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