[mapguide-users] Load Layer Definition XML

[clarkie342]

Hi,

Does MaestroAPI work with Mapguide Enterprise?
Thanks.


wordsy wrote:
> 
> Thanks for the quick response.  It was exactly what I needed.
> 
> Cheers!
> 
> 
> Kenneth Skovhede, GEOGRAF A/S wrote:
>> 
>> If you want to modify the layer xml, you just read the xml like this:
>> 
>> MgByteReader rd = resourceSrvc.GetResource(new 
>> MgResourceIdentifier("Library://layer.LayerDefinition"));
>> 
>> If you want to work seriously with layerdefinitions (and the MapGuide 
>> xml), I have created the MaestroAPI,
>> which lets you manipulate classes instead of xml:
>> http://trac.osgeo.org/mapguide/wiki/maestro/MaestroAPI
>> 
>> Using the MaestroAPI, you can just do:
>> LayerDefinition ldef = 
>> con.GetLayerDefinition("Library://layer.LayerDefinition");
>> VectorLayerDefinition vldef = ldef.Item as VectorLayerDefinition;
>> foreach(VectorScaleRangeType vsr in vldef.ScaleRanges)
>>     foreach(object o in vsr.Item)
>>        if (o is PointTypeStyleType)
>>           ; //Layer has points
>>        else if (o is LineTypeStyleType)
>>           ; //Layer has lines
>>        else if (o is AreaTypeStyleType)
>>           ; //Layer has polygons
>> 
>> 
>> Also, changing a style is easy, eg:
>> PointTypeStyleType point = vldef.ScaleRanges[0].Item[0] as 
>> PointTypeStyleType;
>> p.PointRule[0].Label.BackgroundColor = System.Drawing.Color.Red;
>> 
>> Then save:
>> con.SaveResource(ldef);
>> 
>> All is fully intellisense supported in VS.
>> 
>> 
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>> 
>> 
>> 
>> wordsy skrev:
>>> Hey Everyone;
>>>
>>> Fairly new to MGOS.
>>>
>>> Here is what I am trying to do.  
>>>
>>> I have a map with many Layers.  One of my requirements is to allow users
>>> to
>>> be able to change the layer styles via a web wizard.  The user will be
>>> able
>>> to adjust certain styles for line/point/polygon (surface).  Ie font,
>>> symbol,
>>> line thickness, color etc.
>>>
>>> Already my site allows a user to select the layer they want to change,
>>> then
>>> change the styles for a point only.  The changing doesn't seem to be a
>>> problem right now.
>>>
>>> The problem I have:
>>>
>>> Once a user selects the layer they want to load.  How would I get the
>>> layer
>>> and use XML document or XPATH or something to allow the users edit XML
>>> nodes.
>>>
>>> Here is my code that checks to see what layer type I have when the user
>>> selects the layer.  I have 3 different user controls (one for line, one
>>> for
>>> poly, one for line).  What I really want, is to load the layer and
>>> populate
>>> the appropriate controls inside the user control.
>>>
>>>  MgSiteConnection conn = InitializeGisWebTier();
>>>             string resource = "Library://MUNICIPALITIES/" + Municipality
>>> +
>>> "/2_DATA/" + LayerName + ".FeatureSource";
>>>
>>>             MgResourceService svc =
>>> (MgResourceService)conn.CreateService(MgServiceType.ResourceService );
>>>
>>>             // Populate some values that we will need.
>>>             MgResourceIdentifier resourceId = new
>>> MgResourceIdentifier(resource);              
>>>             MgFeatureReader featureReader =
>>> LayerDefinitionFactory.MakeAFeatureReader(conn, resourceId);                        
>>>             
>>>             // Find out what type of Geometric property the
>>> FeatureSource we
>>> uploaded has.
>>>             string geometricPropertyType =
>>> LayerDefinitionFactory.GetFeatureSourceGeometricPropertyType(featureReader);
>>>
>>>             switch (geometricPropertyType)
>>>             {
>>>                 case "SURFACE":
>>>                     // We load the Polygon usercontrol
>>>                     this.phStylizeLayerControl.Controls.Add(new
>>> PolygonStyleBuilder());
>>>                     break;
>>>                 case "POINT":
>>>                     // we load the point usercontrol
>>>                     //this.phStylizeLayerControl.Controls.Add(new
>>> PointStyleBuilder());
>>>                     PointStyleBuilder control =
>>> (PointStyleBuilder)LoadControl("~/Pages/Controls/PointStyleBuilder.ascx");
>>>                     this.phStylizeLayerControl.Controls.Add(control);
>>>                     txtSymbol.Enabled = true;
>>>                     txtSymbolSize.Enabled = true;
>>>                     break;
>>>                 case "CURVE":
>>>                     // we load the line user control
>>>                     this.phStylizeLayerControl.Controls.Add(new
>>> LineStyleBuilder());
>>>                     break;
>>>             }
>>>
>>> Thanks for any help in advance.
>>>   
>> _______________________________________________
>> mapguide-users mailing list
>> mapguide-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>> 
>> 
> 
> 

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