Changes between Initial Version and Version 1 of maestro/MaestroAPI/samples/CustomizedZoomWithWebLayout

Timestamp:

12/02/08 04:48:55 (16 years ago)

Author:

ksgeograf

Comment:

--

maestro/MaestroAPI/samples/CustomizedZoomWithWebLayout

@@ +1 @@
+
+== Utilizing !RuntimeMap via Maestro API ==
+This page describes how to use the MaestroAPI from the [wiki:maestro MapGuide Maestro] project in your own application.
+
+This example shows how to make a copy of a WebLayout, and use it to override the zoom level for a particular user.
+The code should be placed in an aspx page, otherwise the Response.Redirect call won't work.
+
+This example uses the http version, so no MapGuide binaries are required.
+Read about [wiki:maestro/MaestroAPI/basics the difference between LocalNativeConnection and HttpServerConnection here]
+
+(VB.NET)
+{{{
+Imports OSGeo.MapGuide.MaestroAPI
+...
+
+'Read the setup, either from QueryString, Form, Cookies or hardcoded values
+Dim username As String = IIF(Request.Params("USERNAME") Is Nothing, "Anonymous", Request.Params("USERNAME"))
+Dim password As String = IIF(Request.Params("PASSWORD") Is Nothing, "", Request.Params("PASSWORD"))
+Dim layout As String = IIF(Request.Params("LAYOUT") Is Nothing, "Library://MyLayout.WebLayout", Request.Params("LAYOUT"))
+Dim locale As String = IIF(Request.Params("LOCALE") Is Nothing, "en", Request.Params("LOCALE"))
+
+
+'Setup connection
+Dim host As New Uri("http://localhost/mapguide/mapagent/mapagent.fcgi")
+Dim conn As New HttpServerConnection(host, username , password, locale, True)
+
+'Obtain the weblayout and map
+Dim weblayout as WebLayout = con.GetWebLayout(layout)
+Dim mapdefinition as MapDefinition = con.GetMapDefinition(weblayout.Map.ResourceId)
+
+'Modify the initial view of the weblayout
+weblayout.Map.InitialView = new MapViewType()
+weblayout.Map.InitialView.Scale = 2000 'Zoom to 1:2000
+weblayout.Map.InitialView.CenterX = (mapdefinition.Extents.MaxX - mapdefinition.Extents.MinX) + mapdefinition.Extents.MinX
+weblayout.Map.InitialView.CenterY = (mapdefinition.Extents.MaxY - mapdefinition.Extents.MinX) + mapdefinition.Extents.MinY
+
+'Obtain a unique session based id for the temporary weblayout (which is a copy of an existing WebLayout)
+Dim tempid as ResourceIdentifier = new ResourceIdentifier(Guid.NewGuid(), OSGeo.MapGuide.MaestroAPI.ResourceTypes.WebLayout, con.SessionID)
+
+'Save the layout, otherwise you can't reference it
+con.SaveResourceAs(weblayout, tempid)
+
+'Open the viewer, and use the temporary layout, since the map only exists in the
+'current session, we must use that session, and NOT supply username/password
+Response.Redirect("/mapguide/ajaxviewer/?LAYOUT=" & Server.UrlEncode(tempWebLayout) & "&SESSION=" &  Server.UrlEncode(con.SessionID), true)
+}}}