I am Kiran, i also need the same requirement as sudha ask to you, I understood what you reply. I have one question, upto now i am using the mapguide studio for creating packages and call those packages to the program. can’t we create a package with out help of either maestro or mapguide studio? i want create the entire package through programmatically if is there chace for it please help to me.

I understood that.But if we 50 servers(data for 50 cities in each location).we have to create 50 mapguide packages.right?it is so hard.So what i think is, is there any option for create temporary feature source that connect to oracle ? so that we can modify it temporarily as per user request.
am i thinking in right way?please guide me.

So if I understand this right, you have multiple Oracle database servers, a single Mapguide web tier. You want to be able to select the mapping data based on let’s say a dropdown that lets users choose the location (Washington, California, Florida).

The first thing that comes to mind is this. Create three Data Connections in Mapguide – one for each Oracle server. If all three data sources have the same layers and data you could create a single set of layers, and a single Map and Layout. As the user changes the location in the application you could modify and rebuild the runtime MgMap to change each of the layers to use the appropriate Oracle Data Connection. Then save the updated map to the session.

If the layers are different for each area, you could create a number of folders in the library repository that contain the layers for each location. When the user changes the location you could iterate through the layers in each folder recursively and add each layer to the runtime map, again saving the updated MgMap into the session repository.

Finally, you could also create a full set of resources for each area – Map with “hard authored” layers. Then as the user switches locations you could simply change the map that is being used in the session and save it. This would likely be the easiest solution both programmatically and probably from an authoring point of view as well.

hope that helps.

we have oracle data base at differenet servers (server1(contains washington data),server2(contains california data),server3(contains florida data)).i want to display the one of these data on the mapguide viewer based on selection(suppose if i select washington the washington data must be appeared on the map from server1).similarly if i select florida,florida data must be loaded on the map from server 2.and so on……….

So for this i think we can’t create packages.right? i think we have to connect to the database server dynamicallay from our application to retrieve the spatial data.Please let me know for the solution.if i missing something please let me know.

I’m not sure I can explain the process any better. You’ll need to take the code and adapt it for your specific needs. Take for example one of our products RADE. We store information about the available layers in the RADE configuration database. When a user loads an application for the first time, we check for layers that have been marked as “base” meaning these layers need to be dynamically added to the map at runtime. We then loop through these layers and add the appropriate resources to the map using code very similar to what is published here.

So you’ll need to look at the code and figure out the best way to remove the hard coded references – replacing them with your own specific resources.

hope that helps!

Now i want to create the dynamic authoring for my own data.can you please explain the application overview how to develop this application for my data?

Actually my requirement is we have oracle database at central server.i want to load the layers on the fly and want to display on the internet.is dynamic authoring is useful for me?Please let me know.