[Mapserver-users] JBox: Setting busy image
Richard Greenwood
rich at greenwoodmap.com
Wed Jan 28 21:07:49 PST 2004
Palanisamy, Giri wrote:
> HI,
>
> I am reposting this question.
>
> I am trying to show an intermediate busy image while the JBox applet
> working, something very similar to
>
> http://www.dnr.state.mn.us/maps/landview.html
>
> when you click any zoom option, you will notice a 'Making your map...'
> image in this page.. I would like to do the same function.
Giri,
I looked at this and can not offer a simple explanation, but like I said
in the howto at
http://mapserver.gis.umn.edu/doc40/jbox-howto.html
It generally works with setimage(). In the simple example in the howto,
the map is rendered when jBox is initialized and that's it. Each page
submit causes the process to happen again. But with setimage(), the jBox
applet gets initialized, and then setimage() takes control of repainting
the page. setimage() provides a lower level of control, but requires
more effort on the part of the application. I do not see a simple way to
display a busyimage when using the "basic" jBox functionality as jBox
stands now. I suspect that some modification to jBox would be required.
Regarding the redraw issue. Steve says redraw is no longer used, so I
will correct the howto.
--
Richard Greenwood
www.greenwoodmap.com
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