AE Add XY Data(转)

读入文件，然后选择X、Y字段，再创建一个新的Feaclass，根据每一行的数据创建feature，添加到featureclass，另外，要根据文件属性打开文件，如excel、txt等。

调用GP里面的make xy event layer工具：

Dim MxyLyr As MakeXYEventLayer = New MakeXYEventLayer
MxyLyr.table = Application.StartupPath & "\shiyan.txt"
MxyLyr.in_x_field = "x坐标"
MxyLyr.in_y_field = "y坐标"
MxyLyr.out_layer = "Temp"
GP.Execute(MxyLyr, Nothing)

C#实现:

public IFeatureClass CreateXYEventSource(ITable table, ISpatialReference spatialReference)

{ 
// Create and populate the XY Event2Fields Properties object. 
IXYEvent2FieldsProperties xyEvent2FieldsProperties = new XYEvent2FieldsPropertiesClass(); 
xyEvent2FieldsProperties.XFieldName = "X"; 
xyEvent2FieldsProperties.YFieldName = "Y"; // xyEvent2FieldsProperties.ZFieldName = "Z"; // This property is optional.
// Get a name object for the source table. 
IDataset sourceDataset = (IDataset)table; 
IName sourceName = sourceDataset.FullName;
// Create an event source name using the properties and the spatial reference.
IXYEventSourceName xyEventSourceName = new XYEventSourceNameClass(); 
xyEventSourceName.EventProperties = xyEvent2FieldsProperties;
 xyEventSourceName.EventTableName = sourceName;
 xyEventSourceName.SpatialReference = spatialReference;
// Create the XY event source.
IName name = (IName)xyEventSourceName;
IXYEventSource xyEventSource = (IXYEventSource)name.Open();
// Cast the event source to the IFeatureClass interface.
IFeatureClass featureClass = (IFeatureClass)xyEventSource; return featureClass;
}

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