On Aug 4, 2010, at 5:17 PM, ext Franz Buchinger wrote:
> caching is difficult, because its a single-tile, dynamically generated map
> image with a random url *ggrrr*. And the image isn't served directly, the
> mapimage url is embedded into an xml response with some other data.
>
> Furthermore
caching is difficult, because its a single-tile, dynamically generated map
image with a random url *ggrrr*. And the image isn't served directly, the
mapimage url is embedded into an xml response with some other data.
Furthermore we desire a "dynamic" image layer behaviour (=transition effects
of t
It does not seem an ideal design to me.
Is there no way to provide caching (maybe by setting the correct http
headers) so that the backbuffer tile will come from the browser's cache?
Or are your async requests using POST and not GET?
Best regards,
Bart
> I dropped my plans of extending ImageLaye
I dropped my plans of extending ImageLayer...the getUrlAsync approach leads
to the same problem than with GridLayer (multiple image requests during
zoom/pan animation).
However I have a new idea: what if I manage the layer through a control? It
could perform the map request, parse out the map imag
In my case, creating the single-tiled map is rather expensive - because the
map image is generated "on-the-fly".
Therefore, I want my layer to "anticipate" the map action (zoom, pan), just
like the ImageLayer does.
I actually had a well working implementation of my map viewer based on
ImageLayers
On Aug 3, 2010, at 9:42 AM, ext Franz Buchinger wrote:
> Hi Bart,
>
> yes, I've set these options. I noticed that these multiple requests only
> happen when I set transitionEffect: 'resize'.
This is basically expected. The transition effect creates multiple tiles, and
since
creating images i
Hi Bart,
yes, I've set these options. I noticed that these multiple requests only
happen when I set transitionEffect: 'resize'.
I'm using OpenLayers 2.9.1.
Franz
2010/8/3 Bart van den Eijnden (OSGIS)
> Hi Franz,
>
> and have you verified you only have a single tile?
>
> Do you have singleTi
Hi Franz,
and have you verified you only have a single tile?
Do you have singleTile: true, ratio: 1 and buffer: 0 in your layer options?
Best regards,
Bart
> Hi Bart,
>
> I'm almost done with my layer implementation. The only problem: my
> getURLasync() Method gets triggered far too often (abo
Hi Bart,
I'm almost done with my layer implementation. The only problem: my
getURLasync() Method gets triggered far too often (about 3x per pan/zoom
action).
How can I make sure that getURLasync is only triggered once per map action?
Franz
2010/8/3 Bart van den Eijnden (OSGIS)
> Hi Franz,
>
Hi Franz,
check out OpenLayers.Tile.Image.
Best regards,
Bart
> Hi Bart,
>
> thanks for the fast and helpful response!
>
> One question though: which class actually invokes the methods
> OpenLayers.Layer.ArcIMS.getUrl and OpenLayers.Layer.getUrlAsync?
>
> They seem to be overriden methods, but i
Hi Bart,
thanks for the fast and helpful response!
One question though: which class actually invokes the methods
OpenLayers.Layer.ArcIMS.getUrl and OpenLayers.Layer.getUrlAsync?
They seem to be overriden methods, but i couldn't find them in
OpenLayers.Layer.Grid or OpenLayers.Layer.HTTPRequest.
Hi,
I would advise you to look at OpenLayers.Layer.ArcIMS which uses a similar
approach.
Best regards,
Bart
> Hi,
>
> I'm a frontend developer and was programming a web viewer for a
> proprietary,
> WMS-like map service.
> I discovered Openlayers one month ago and I'm really fascinated by its
>
Hi,
I'm a frontend developer and was programming a web viewer for a proprietary,
WMS-like map service.
I discovered Openlayers one month ago and I'm really fascinated by its
awesome capabilities, so I decided to integrate our map service in
OpenLayers.
Here is a short description how the map serv
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