[fusion-users] Speed of Fusion vs MapFish (OpenLayers)

[Paul Deschamps]

Hi Andrew,

hehe yes or no answer ;)

What you are doing here is not a "true" comparison of the three different
technologies.

Your mapfish and your openlayers application are using tiles where your
fusion app is not. You see in a tiled mapwindow tiles outside of the
mapwindow can be cached so that they display when they are dragged into
position. Another consideration about tiled mapviewers is the size of each
tile.

If the size of the tile requested from the server is requested at the same
native size of the tile on the server then the server does not need to
stitch tiles together.

All three of these examples are using Openlayers. So from a strictly
fetching of the map image and presenting it on the screen the performance
would be identical as long as the requested image is the same size across
all three.

And lastly, Your Openlayers app is using Google's Server Farm directly for
it's imagery where the mapfish and fusion are  requesting it.  so it's an
extra step for every map draw.

Fusion is a toolkit that provides common set of map "widgets" and UI
controls that enable rapid application development (RAD) there's a buzz wo
from the past. :)

If you really want fusion to preform in the same fashion that your
openlayers app is. You can:

Add the OpenLayers.Layers.Google class to your openlayers.js and get fusion
to work with it. ( may or may not be an easy task)
Or wait for it to be added eventually ;)

Cheers

Paul D.

On Wed, Oct 29, 2008 at 5:47 PM, Andrew Parker <andrew at source3.com> wrote:

> I am not sure if there is a way to make Fusion render maps as fast as
> OpenLayers.  At this time, I just need a yes or no answer.
>
> For example, it would be great if I could make my current Fusion
> application (http://216.93.173.156/testing/) draw the map as fast as my
> current OpenLayers application (http//:webgis.source3.com) and my MapFish
> test at (http://http://216.93.173.156/MFtest/).
>
> What I am using for a comparison is the Topo Map Layer with the USGS wells
> (the data is limited to New Mexico, USA) at a scale of about 1:100,000.
>  When I zoom and pan, I like how fast OpenLayers/MapFish redraws.
> I went ahead and turned on the two layers that I am using for a comparison
> in MapFish test and my Fusion test.
>
> The topo is from TerraServer.  The USGS data is in PostGIS.
>
> thanks,
>
> ~andrew
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>



-- 
   Paul Deschamps
   Applications Specialist
   DM Solutions Group Inc.

   Office: (613) 565-5056 x28
   pdeschamps at dmsolutions.ca
   http://www.dmsolutions.ca
   http://research.dmsolutions.ca
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