public bool joinTabletoFeatureLayer(IServerContext mapContext,
ITable externalTable,
IFeatureLayer featureLayer,
string tableJoinField,
string layerJoinField,
esriJoinType joinType)
{
IDisplayTable pDispTable = featureLayer as IDisplayTable;
IFeatureClass pFCLayer = pDispTable.DisplayTable as IFeatureClass;
ITable pTLayer = (ITable)pFCLayer;
string strJnFieldLayer = layerJoinField;
string strJnFieldTable = tableJoinField;
IMemoryRelationshipClassFactory pMemRelFact = (IMemoryRelationshipClassFactory)mapContext.CreateObject("esriGeoDatabase.MemoryRelationshipClassFactory");
IRelationshipClass pRelClass = (IRelationshipClass)pMemRelFact.Open("Join",
(IObjectClass)externalTable, strJnFieldTable,
(IObjectClass)pTLayer, strJnFieldLayer,
"forward", "backward",
esriRelCardinality.esriRelCardinalityOneToOne);
IDisplayRelationshipClass pDispRC = (IDisplayRelationshipClass)featureLayer;
pDispRC.DisplayRelationshipClass(pRelClass, joinType); //esriLeftOuterJoin
IDisplayTable dt = (IDisplayTable)featureLayer;
ITable jointable = dt.DisplayTable;
bool retval = false;
if (jointable is IRelQueryTable)
{
retval = true;
}
return retval;
}
public void TestAsg()
{
IServerContext svrContxt = null;
try
{
svrContxt = ServerUtility.GetServerContext(this.Page);
//3.创建serverObjects
IPoint pt = svrContxt.CreateObject(PublicConst.Lbl_GeoObjt_Point) as IPoint;
pt.X = 100;
pt.Y = 200;
sCallBackFuncStr = JsMesage.ShowMessage(Map1, string.Format("x={0},y={1}", pt.X, pt.Y));
}
catch (Exception ex)
{
Console.WriteLine(ex);
System.Diagnostics.Debug.WriteLine(ex);
}
finally
{
if (svrContxt != null)
{
svrContxt.ReleaseContext(); svrContxt = null;
}
}
}
public Classifier(IServerContext mapContext, double [] values, int [] counts, String classifierType, int breaks)
{
m_classifier = (IClassifyGEN)mapContext.CreateObject("esriSystem." + classifierType);
int b = breaks;
m_classifier.Classify(values, counts, ref b);
m_breaks = b;
}
/// 获取GRB颜色
/// </summary>
/// <param name="red"></param>
/// <param name="green"></param>
/// <param name="blue"></param>
/// <returns></returns>
public static ESRI.ArcGIS.Display.IColor GetRGB(int red, int green, int blue, IServerContext pServerContext)
{
IRgbColor rgbColor = pServerContext.CreateObject("esriDisplay.RGBColor") as IRgbColor;
IColor color = rgbColor as IColor;
rgbColor.Red = red;
rgbColor.Green = green;
rgbColor.Blue = blue;
return(color);
}
private IFeatureClass GetFeatureClassInsideDataset(string featureClassName)
{
IWorkspaceFactory2 factory = null;
if (_serverContext != null)
{
factory = (IWorkspaceFactory2)_serverContext.CreateObject("esriDataSourcesGDB.SDEWorkspaceFactory");
}
//else
// factory = new ESRI.ArcGIS.DataSourcesGDB.SdeWorkspaceFactoryClass();
//TODO COMMENTED ABOVE TO ALLOW COMPILE
IWorkspace ipWks = null;
IFeatureClass ipFeatClass = null;
IFeatureDataset ipFeatDS = null;
IEnumDataset ipEnumSubDataset = null;
IEnumDataset ipEnumDataset = null;
IFeatureWorkspace fws = null;
try
{
IPropertySet2 propSet = null;
if (_serverContext != null)
{
propSet = (IPropertySet2)_serverContext.CreateObject("esriSystem.PropertySet");
}
//else
// propSet = new ESRI.ArcGIS.esriSystem.PropertySetClass();
//TODO COMMENTED ABOVE TO ALLOW COMPILE
propSet.SetProperty("SERVER", _sdeServerInfo.server);
propSet.SetProperty("INSTANCE", _sdeServerInfo.instance);
propSet.SetProperty("DATABASE", _sdeServerInfo.database);
propSet.SetProperty("USER", _sdeServerInfo.user);
propSet.SetProperty("PASSWORD", _sdeServerInfo.password);
propSet.SetProperty("VERSION", _sdeServerInfo.version);
ipWks = factory.Open(propSet, 0);
fws = (IFeatureWorkspace)ipWks;
//try and open it
if (ipWks != null)
{
// Now get all the feature classes included in the datasets
ipEnumDataset = ipWks.get_Datasets(esriDatasetType.esriDTFeatureDataset);
ipEnumDataset.Reset();
ipFeatDS = ipEnumDataset.Next() as IFeatureDataset;
while (ipFeatDS != null)
{
ipEnumSubDataset = ipFeatDS.Subsets; //.get_Datasets(esriDatasetType.esriDTFeatureClass);
ipEnumSubDataset.Reset();
ipFeatClass = ipEnumSubDataset.Next() as IFeatureClass;
while (ipFeatClass != null)
{
if (ipFeatClass.AliasName.ToUpper().Contains(featureClassName.ToUpper()))
{
return(ipFeatClass);
}
ipFeatClass = ipEnumSubDataset.Next() as IFeatureClass;
}
ipFeatDS = ipEnumDataset.Next() as IFeatureDataset;
ipEnumSubDataset = null;
}
ipEnumDataset = null;
}
}
catch (System.Runtime.InteropServices.COMException edd)
{
ipFeatClass = null;
throw edd;
}
finally
{
Util.ReleaseCOMObject(fws);
Util.ReleaseCOMObject(ipEnumSubDataset);
Util.ReleaseCOMObject(ipEnumDataset);
Util.ReleaseCOMObject(factory);
}
return(null);
}
private IColor createRGBColor(IServerContext mapContext, int red, int green, int blue)
{
IColor retColor;
RgbColor pColor;
pColor = (RgbColor)mapContext.CreateObject("esriDisplay.RgbColor");
pColor.Red = red;
pColor.Green = green;
pColor.Blue = blue;
retColor = (IColor)pColor;
return retColor;
}
private void applyRenderer(IGeoFeatureLayer geoLayer, IServerContext mapContext, string fieldName, Classifier classifier)
{
IClassBreaksRenderer cbRenderer = (IClassBreaksRenderer)mapContext.CreateObject("esriCarto.ClassBreaksRenderer");
cbRenderer.Field = fieldName;
ILegendInfo legendInfo = (ILegendInfo)cbRenderer;
ILegendGroup legendGroup = legendInfo.get_LegendGroup(0);
legendGroup.Heading = "Counts";
int breaks = classifier.getBreaks();
IColor [] pColors = new IColor[breaks];
ISimpleFillSymbol [] symbols = new ISimpleFillSymbol[breaks];
double breakValue;
cbRenderer.BreakCount = breaks;
IAlgorithmicColorRamp colorRamp = (IAlgorithmicColorRamp)mapContext.CreateObject("esriDisplay.AlgorithmicColorRamp");
IColor startColor, endColor;
startColor = createRGBColor(mapContext, 255, 255, 0);
endColor = createRGBColor(mapContext, 255, 0, 0);
colorRamp.FromColor = startColor;
colorRamp.ToColor = endColor;
colorRamp.Algorithm = esriColorRampAlgorithm.esriCIELabAlgorithm;
colorRamp.Size = breaks;
bool created;
try
{
colorRamp.CreateRamp(out created);
}
catch
{
this.Label2.Text = "There is not enough data associated with the current extents and attributes selected. A map was not generated. Please try selecting other attributes.";
return;
}
IEnumColors iterColors = colorRamp.Colors;
double[] classBreaksArray = (double[])classifier.getClassBreaksArray();
for (int i = 0; i < breaks; i++)
{
pColors[i] = iterColors.Next();
symbols[i] = (ISimpleFillSymbol)mapContext.CreateObject("esriDisplay.SimpleFillSymbol");
symbols[i].Color = pColors[i];
cbRenderer.set_Symbol(i, (ISymbol)symbols[i]);
breakValue = classBreaksArray[i + 1];
cbRenderer.set_Break(i, breakValue);
string breakValueString = String.Format("{0:0.00}", breakValue);
if (i == 0)
{
cbRenderer.set_Label(i, "<" + breakValueString);
}
else
{
string prevValueString = String.Format("{0:0.00}", classBreaksArray[i]);
string label = prevValueString + " < " + breakValueString;
cbRenderer.set_Label(i, label);
}
}
geoLayer.Renderer = (IFeatureRenderer)cbRenderer;
this.Toc1.ExpandDepth = 1;
this.Toc1.Refresh();
}