Display progress bar while waiting for data

[Obe, Regina DND\MIS]

You should take a look at some applications that do it like for example USGS
MapSurfer.

http://cortez.gps.caltech.edu/mapsurfer/mapsurfer/index.html

The general principal that that uses I think is to load the map in a
separate hidden frame and then once that pages is fully loaded passes the
image reference etc. to the viewing frame using some javascript tricks.  The
viewing frame in the meantime just shows an animated "Loading ..." gif.

The whole interface is fairly slick so may be more than what you are looking
for.

I'm not sure if there is an easier way to do this without using hidden
frames or a java applet.



-----Original Message-----
From: Dejan Gambin [mailto:dejan.gambin at PULA.HR]
Sent: Monday, May 16, 2005 5:06 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Display progress bar while waiting for data


Hi,

Is it possible to create some kind of progress bar while waiting for raster
data to be displayed. I have some raster data in GeoTIFF format that some
users with a slow connection must wait for. I am wondering if I can show
them a progress bar indicating "estimated" time they have to wait so they
know and they can wait or cancel the process.

Does anyone have a suggestion on what is the best way to inform users?

thanks very much

dejan