[mapguide-users] Runtime map problem
Kenneth Skovhede, GEOGRAF A/S
ks at geograf.dk
Tue Dec 2 09:41:10 EST 2008
Its a function that creates a GUID (Globally Unique ID).
It creates a string like "xcsdfasd-sdfasdf-dsdfasf" but ensures that it
is mathematically
certain that you will not get duplicates, even if you call it multiple
times on multiple machines.
For the example I sent, you can replace it with any string, like:
"session map test".
Regards, Kenneth Skovhede, GEOGRAF A/S
padmini godavarthi skrev:
> Hi,
> Thanku very much for ur help
> i tried this code
> but i got an error in the line
>
> Dim tempid as ResourceIdentifier = new ResourceIdentifier(Guid.NewGuid(),
> OSGeo.MapGuide.MaestroAPI.ResourceTypes.WebLayout, con.SessionID)
>
> because of this Guid.NewGuid()
>
> 1) Actually what is this?
> 2) Which paramater we have to pass in this place instead of Guid.NewGuid()
>
>
> Regards,
> Padmini
>
>
>
>
> Kenneth Skovhede, GEOGRAF A/S wrote:
>
>> I forgot to save the weblayout in the code below :(
>>
>> Updated version is:
>>
>> 'Setup connection
>> Dim host As New Uri("http://localhost/mapguide/mapagent/mapagent.fcgi")
>> Dim conn As New HttpServerConnection(host, "Administrator", "admin",
>> "en", True)
>>
>> 'You have to change the string below to point at a valid WebLayout
>> Dim weblayout as WebLayout =
>> con.GetWebLayout("Library://mylayout.WebLayout")
>> 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
>> 'BEWARE: The session belongs to the Administrator account, so the user
>> gets full access to MapGuide (delete, modify, etc.)
>> Response.Redirect("/mapguide/ajaxviewer/?WEBLAYOUT=" &
>> Server.UrlEncode(tempid) & "&SESSION=" & Server.UrlEncode(con.SessionID))
>>
>>
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>
>>
>>
>> Kenneth Skovhede, GEOGRAF A/S skrev:
>>
>>> To build a map, you must have all the components:
>>> 1. FeatureSource, references data
>>> 2. LayerDefinition, references a FeatureSource
>>> 3. MapDefinition, references multiple LayerDefinitions
>>> 4. WebLayout, references a MapDefinition
>>>
>>> All these items must be in a repository (either Library or Session),
>>> otherwise they can't be referenced.
>>>
>>> When you write that you want to "create a WebLayout programatically",
>>> do you want to create ALL the above items, or do you have layers and
>>> featuresources?
>>>
>>> (1) If you want to generate a WebLayout ResourceID, you should use:
>>> Dim res As New ResourceIdentifier("Filebased data/Maps/mapdata",
>>> ResourceTypes.WebLayout)
>>> If you want to read the name of an existing MapDefinition from another
>>> layout, you must do:
>>> Dim weblayout as WebLayout =
>>> con.GetWebLayout("Library://mylayout.WebLayout")
>>> Dim res as String = webLayout.Map.ResourceId
>>>
>>> (2) I don't understand the question.
>>>
>>> (3) The MapDefinition is an Xml document. Inside, it references layers,
>>> which references featuresources, as described above. It is very slow to
>>> do this, so when you open a map in the browser, the xml is transformed
>>> into
>>> a binary object. This object contains all the info from the
>>> MapDefinition and
>>> some info from the layers and featuresources.
>>>
>>> You need to know this, because if you try to toggle layer visibility
>>> in the MapDefinition,
>>> nothing happens. In short, the Runtime Map is a binary object that you
>>> can manipulate
>>> using the MapGuide (and Maestro)-API, and it only works for a
>>> displayed map.
>>> Upon startup, the Runtime Map is identical to the MapDefinition it was
>>> created from.
>>>
>>>
>>> A short example of using an existing WebLayout:
>>>
>>> Dim host As New Uri("http://localhost/mapguide/mapagent/mapagent.fcgi")
>>> Dim conn As New HttpServerConnection(host, "Administrator", "admin",
>>> "en", True)
>>>
>>> 'You have to change the string below to point at a valid WebLayout
>>>
>>> Dim weblayout as WebLayout =
>>> con.GetWebLayout("Library://mylayout.WebLayout")
>>> Dim mapdefinition as MapDefinition =
>>> con.GetMapDefinition(weblayout.Map.ResourceId)
>>> 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
>>> Dim tempid as ResourceIdentifier = new
>>> ResourceIdentifier(Guid.NewGuid(),
>>> OSGeo.MapGuide.MaestroAPI.ResourceTypes.WebLayout, con.SessionID)
>>> Response.Redirect("/mapguide/ajaxviewer/?WEBLAYOUT=" &
>>> Server.UrlEncode(tempid) & "&USERNAME=Anonymous&PASSWORD=")
>>>
>>>
>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>
>>>
>>> padmini godavarthi skrev:
>>>
>>>> Hi,
>>>> Thanks for u r reply
>>>>
>>>> actually i wrote the code as
>>>>
>>>>
>>>> Dim host As New
>>>> Uri("http://localhost/mapguide/mapagent/mapagent.fcgi")
>>>> Dim conn As New HttpServerConnection(host, "Administrator",
>>>> "admin",
>>>> "en", True)
>>>> Dim res As New ResourceIdentifier("Filebased data/Maps/mapdata",
>>>> ResourceTypes.MapDefinition)
>>>> Dim mapId As String = res.ResourceId
>>>>
>>>>
>>>> with that i got the map resource id.
>>>>
>>>> But actually to run the application the url in the browser must be like
>>>>
>>>>
>>>> http://localhost/mapguide/mapviewerajax/?WEBLAYOUT=Library%3a%2f%2fFilebased+data%2fLayout%2flayout.WebLayout
>>>>
>>>> 1) How can i get this weblayout (like
>>>> Library%3a%2f%2fFilebased+data%2fLayout%2flayout.WebLayout)
>>>> programmetically
>>>>
>>>> 2) I want to redirect to the ajax viewer sample application through
>>>> asp.net
>>>> (like given by u )
>>>> Response.Redirect("/mapguide/ajaxviewer/?WEBLAYOUT=...resourceId
>>>> for
>>>> your WebLayout...&USERNAME=Anonymous&PASSWORD=");
>>>>
>>>> 3) Can u plz tell me the purpose of runtime map (actualli iam in
>>>> configusing
>>>> state)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>>
>>>>
>>>>> Instead of re-posting the original question,
>>>>> could you try to explain what parts of my previous reply
>>>>> that are unclear or wrong?
>>>>>
>>>>> http://www.nabble.com/How-to-Load-Runtime-map-in-mapviewerajax-to20704038.html#a20769349
>>>>>
>>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>>
>>>>>
>>>>>
>>>>> padmini godavarthi skrev:
>>>>>
>>>>>
>>>>>> Hi ,
>>>>>> iam using mapguide open source 2.0( with .Net 2.0 + IIS 5.1)
>>>>>> Iam using dotnet viewer sample while running the application i
>>>>>> observed
>>>>>> that
>>>>>> the layout path given in the application.
>>>>>>
>>>>>> as
>>>>>>
>>>>>> String webLayout =
>>>>>> "Library://Samples/Sheboygan/Layouts/SheboyganAspTiled.WebLayout";
>>>>>>
>>>>>> it works but now i want to create this weblayout in run time (by
>>>>>> code)
>>>>>> using mapguide maestro api
>>>>>>
>>>>>> for this purpose i followed the link
>>>>>>
>>>>>> http://trac.osgeo.org/mapguide/wiki/maestro/MaestroAPI/samples/RuntimeMap
>>>>>>
>>>>>> but i didnt get any out.
>>>>>>
>>>>>> can u plz tell me
>>>>>>
>>>>>> 1) how to create this weblayout in run time
>>>>>> 2) How it will works
>>>>>>
>>>>>> If u know this plz tell me the procedure.
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>> Padmini.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> mapguide-users mailing list
>>>>> mapguide-users at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
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>>>
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>>>
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>>
>>
>
>
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