| Re: [udig-users] Real-time GIS support? |
Good morning Mr Yang:This is a request we get each month; if you look in the code examples there is an example of a "Mapgraphic" doing animation. The general strategy is to take your real time data feed and update the result on the Map black board; you can have any view or extension access the information there since it is now in a known spot. The *first* extension you want to set up to work with this data is a MapGraphic implementation that draws what is happening on screen.
I should mention that you can host a "real object" on the Map black board; complete with connections to your data feed and event notification for anyone who is interested. I a sense uDig is just providing an environment for you to host your domain objects in.
The second approach is to set your data feed up as a formal service (this is more useful if you have more than one of them); you would then associate a renderer with the data feed type and the user could assemble a Map with "live layers" that update when your data feed changes.
If you are going to be working with lots of information I recommend you store the results of your data feed in a local database such as H2 or HSQL (rather than hold them in memory).
Refractions is of course available for training; or just a conference call to get you started - we would be please to help your project get underway.
Jody Sun Yang wrote:
Hi,I am new to GIS development. UDig is an excellent product to support GIS RCP. Currently, we want to introduce the GIS feature to our product and use udig to support this feature.I read the walk-through and some of Wiki pages. But I don't know whether UDig support the real-time gis feature. Could anyone tell me whether the udig component support the real-time feature? And if it can support this real-time feature, could you tell me some ideas to implement that feature?Thanks for your help. Best Regards, Yang Sun ------------------------------------------------------------------------ _______________________________________________ udig-users mailing list udig-users@xxxxxxxxxxxxxxxxxxxxx http://lists.refractions.net/mailman/listinfo/udig-users