[mapguide-users] help

[saloua wakrim]

hi! please i want know if this code is that what all i must do for adding
new layer to map and see it in viewer frame or i must do some relation with
the feature source i create in my code?? thanks on advance


myLayer = New MgLayer(layerDefId, resourceSrvc)

myLayer.SetName(myLayerName)

myLayer.SetLegendLabel(myLayerName)

myLayer.SetDisplayInLegend(True)

myLayer.SetSelectable(False)

map.GetLayers().Insert(0, myLayer)

myLayer.ForceRefresh()

map.Save(resourceSrvc)

2009/5/10 Kenneth Skovhede, GEOGRAF A/S <ks at geograf.dk>

> The code looks alright.
> Do you refresh the map afterwards?
> What is in the "insertResults" ?
> (There can be a hidden error, due to a bug in MapGuide)
> Are you sure that the LayerDefinition matches the FeatureSource?
> Try to create the FeatureSource and LayerDefinition in "Library://"
> instead,
> so you can examine the layer from Studio/Maestro.
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>
>
>
> saloua wakrim skrev:
>
>   i try the following code for displaying layer wich contains line in map,
> so i digitize a line, create temporary feature for this line, create a layer
> wich contains it and add it to the map. it doesn't give me some error but  i
> can see the line in the map (i can draw it). Please help me. the code is
> following:
>
>
>
> String
> dataSource = "Session:" + sessionid1 + "//" + myLayerName +
> ".FeatureSource"; MgResourceIdentifier dataSourceId = new
> MgResourceIdentifier(dataSource); MgFeatureService featureSrvc = (
> MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
> if (DoesLayerExist(myLayerName, map) == false)
>
> {
>
>
> //create Feature Source MgClassDefinition myClassDef = new
> MgClassDefinition();
>
> myClassDef.SetName(myLayerName);
>
> myClassDef.SetDescription(myLayerName +
> " Feature Source");
>
> myClassDef.SetDefaultGeometryPropertyName(
> "SHPGEOM"); MgDataPropertyDefinition prop = new MgDataPropertyDefinition(
> "KEY");
>
> prop.SetDataType(
> MgPropertyType.Int32);
>
> prop.SetAutoGeneration(
> true);
>
> prop.SetReadOnly(
> true);
>
> myClassDef.GetIdentityProperties().Add(prop);
>
> myClassDef.GetProperties().Add(prop);
>
> prop =
> new MgDataPropertyDefinition("ID");
>
> prop.SetDataType(
> MgPropertyType.Int32);
>
> myClassDef.GetProperties().Add(prop);
> MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition
> ("SHPGEOM");
>
> geomProp.SetGeometryTypes(
> MgFeatureGeometricType.Curve);
>
> myClassDef.GetProperties().Add(geomProp);
> MgFeatureSchema schema = new MgFeatureSchema(myLayerName + "Schema",
> myLayerName + "SchemaDesc");
>
> schema.GetClasses().Add(myClassDef);
> MgCreateSdfParams sdfParams = new MgCreateSdfParams("MGA-56 (GDA94 / MGA
> zone 56)", map.GetMapSRS(), schema);
>
> featureSrvc.CreateFeatureSource(dataSourceId, sdfParams);
>
>
>
>
> //create layer //String layerDef = "Session:" + sessionid1 + "//" +
> myLayerName + ".LayerDefinition"; MgResourceIdentifier layerDefId = new
> MgResourceIdentifier("Library://essaicalque/Redline.LayerDefinition");
>
>
>
>
> MgByteSource content = new MgByteSource(@"C:\Program
> Files\MapGuideOpenSource\WebServerExtensions\www\essaiselect2\Layerdef.xml");
>
>
> resourceSrvc.SetResource(layerDefId, content.GetReader(),
> null); //code enlev‚ d'ici: ajouter layer resource … la carte //il faut
> ajouter l'autre code: add layer resource to map //DOMDocument domdoc = new
> DOMdocument(); MgLayerresult=add_layer_resource_to_map(layerDefId,resourceSrvc,myLayerName,myLayerName,map);
>
>
> }
> MgInsertFeatures insertFeatures = new MgInsertFeatures(myLayerName,
> makeLine("1", x0, y0, x1, y1)); MgFeatureCommandCollection commands = new
> MgFeatureCommandCollection();
>
> commands.Add(insertFeatures);
> int commandIndex = commands.IndexOf(insertFeatures); MgPropertyCollectioninsertResults;
>
> insertResults = featureSrvc.UpdateFeatures(dataSourceId, commands,
> false); MgLayer myLayer1 = map.GetLayers().GetItem(myLayerName) as MgLayer;
>
>
> myLayer1.ForceRefresh();
>
>
> //commands.Add(new MgInsertFeatures(myLayerName,makeLine("1", x0, y0, x1,
> y1)));
>
>
>
> map.Save(resourceSrvc);
>
>
>
> <
> script runat=server> Boolean result; MgPropertyCollection makeLine(StringName,
> Double x0, Double y0, Double x1, Double y1)
>
> {
> MgPropertyCollection PropertyCollection = new MgPropertyCollection();
> MgInt32Property nameProperty = new MgInt32Property("ID", 1);
>
> PropertyCollection.Add(nameProperty);
> MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
> MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometrygeometry = wktReaderWriter.Read("LINESTRING
> XY (" + x0 + " " + y0 + "," + x1 + " " + y1 + ")") as MgLineString; //MgGeometry
> geometry = wktReaderWriter.Read("LINESTRING(3 4,10 50,20 25)") as
> MgLineString; MgByteReader geometryByteReader =
> agfReaderWriter.Write(geometry); MgGeometryProperty geometryProperty = new
> MgGeometryProperty("SHPGEOM", geometryByteReader);
>
> PropertyCollection.Add(geometryProperty);
> return PropertyCollection;
>
> }
>
> Boolean
> DoesLayerExist(String LayerName, MgMap Map)
>
> {
> MgLayerCollection layers = Map.GetLayers();
>
> result = (layers.Contains(myLayerName));
> return result;
>
> }
> MgLayer add_layer_resource_to_map(MgResourceIdentifier layerresourceid,
> MgResourceService rs, String layername, String layerlegendlabel, MgMapmap)
>
> {
> MgLayer myLayer = new MgLayer(layerresourceid, rs);
>
> myLayer.SetName(layername);
>
> myLayer.SetLegendLabel(layerlegendlabel);
>
> myLayer.SetDisplayInLegend(
> true);
>
> myLayer.SetSelectable(
> true);
>
>
> if (!map.GetLayers().Contains(layername))
>
> {
>
> map.GetLayers().Insert(0, myLayer);
>
> }
>
> myLayer.SetVisible(
> true);
>
> myLayer.ForceRefresh();
>
> map.Save(resourceSrvc);
> return myLayer;
>
> }
>
> </
> script>
>
>
>
>
>
>
>
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>
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