public bool StartNewDocument()
{
try
{
// Only required on 10; requires reference to ESRI.ArcGIS.Version (also only on 10)
if (!ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop))
{
return(false);
}
IDocument doc = new MxDocumentClass();
doc.Parent.Visible = true;
return(true);
}
catch (Exception)
{
return(false);
}
}
//使用addXY进行经纬度描点
public void CreateXYLayer()
{
try
{
IMxDocument pMxDoc;
IMap pMap = axMapControl.Map;
IApplication m_app;
IDocument doc = new MxDocumentClass();
m_app = doc.Parent;
pMxDoc = (IMxDocument)m_app.Document;
pMap = pMxDoc.FocusMap;
IStandaloneTableCollection pStTabCol;
IStandaloneTable pStandaloneTable;
ITable pTable = null;
pStTabCol = (IStandaloneTableCollection) pMap;
for (int intCount = 0; intCount < pStTabCol.StandaloneTableCount; intCount++)
{
pStandaloneTable = (IStandaloneTable) pStTabCol.get_StandaloneTable(intCount);
if (pStandaloneTable.Name == @"e:\XYSample.txt")
{
pTable = pStandaloneTable.Table;
break;
}
}
if (pTable == null)
{
MessageBox.Show("The table was not found");
return;
}
IDataset pDataSet;
IName pTableName;
pDataSet = (IDataset) pTable;
pTableName = pDataSet.FullName;
IXYEvent2FieldsProperties pXYEvent2FieldsProperties;
pXYEvent2FieldsProperties = new XYEvent2FieldsPropertiesClass();
pXYEvent2FieldsProperties.XFieldName = "x";
pXYEvent2FieldsProperties.YFieldName = "y";
pXYEvent2FieldsProperties.ZFieldName = "";
ISpatialReferenceFactory pSpatialReferenceFactory;
pSpatialReferenceFactory = new SpatialReferenceEnvironmentClass();
IProjectedCoordinateSystem pProjectedCoordinateSystem;
pProjectedCoordinateSystem = pSpatialReferenceFactory.CreateProjectedCoordinateSystem(26911);
// esriSRProjCS_NAD1983UTM_11N
// Create the XY name object and set it's properties
IXYEventSourceName pXYEventSourceName = new XYEventSourceNameClass();
IName pXYName;
IXYEventSource pXYEventSource;
pXYEventSourceName.EventProperties = pXYEvent2FieldsProperties;
pXYEventSourceName.SpatialReference = pProjectedCoordinateSystem;
pXYEventSourceName.EventTableName = pTableName;
pXYName = (IName) pXYEventSourceName;
pXYEventSource = (IXYEventSource) pXYName.Open();
// Create a new Map Layer
IFeatureLayer pFLayer = new FeatureLayerClass();
pFLayer.FeatureClass = (IFeatureClass) pXYEventSource;
pFLayer.Name = "Sample XY Event layer";
// Add the layer extension (this is done so that when you edit
// the layer's Source properties and click the Set Data Source
// button, the Add XY Events Dialog appears)
ILayerExtensions pLayerExt;
IFeatureLayerSourcePageExtension pRESPageExt = new XYDataSourcePageExtensionClass();
pLayerExt = (ILayerExtensions) pFLayer;
pLayerExt.AddExtension(pRESPageExt);
pMap.AddLayer(pFLayer);
}
catch (System.Exception SysEx)
{
MessageBox.Show(SysEx.Message,".NET Error: ",MessageBoxButtons.OK,MessageBoxIcon.Warning);
}
}
//使用addXY进行经纬度描点
public void CreateXYLayer()
{
try
{
IMxDocument pMxDoc;
IMap pMap = axMapControl.Map;
IApplication m_app;
IDocument doc = new MxDocumentClass();
m_app = doc.Parent;
pMxDoc = (IMxDocument)m_app.Document;
pMap = pMxDoc.FocusMap;
IStandaloneTableCollection pStTabCol;
IStandaloneTable pStandaloneTable;
ITable pTable = null;
pStTabCol = (IStandaloneTableCollection)pMap;
for (int intCount = 0; intCount < pStTabCol.StandaloneTableCount; intCount++)
{
pStandaloneTable = (IStandaloneTable)pStTabCol.get_StandaloneTable(intCount);
if (pStandaloneTable.Name == @"e:\XYSample.txt")
{
pTable = pStandaloneTable.Table;
break;
}
}
if (pTable == null)
{
MessageBox.Show("The table was not found");
return;
}
IDataset pDataSet;
IName pTableName;
pDataSet = (IDataset)pTable;
pTableName = pDataSet.FullName;
IXYEvent2FieldsProperties pXYEvent2FieldsProperties;
pXYEvent2FieldsProperties = new XYEvent2FieldsPropertiesClass();
pXYEvent2FieldsProperties.XFieldName = "x";
pXYEvent2FieldsProperties.YFieldName = "y";
pXYEvent2FieldsProperties.ZFieldName = "";
ISpatialReferenceFactory pSpatialReferenceFactory;
pSpatialReferenceFactory = new SpatialReferenceEnvironmentClass();
IProjectedCoordinateSystem pProjectedCoordinateSystem;
pProjectedCoordinateSystem = pSpatialReferenceFactory.CreateProjectedCoordinateSystem(26911);
// esriSRProjCS_NAD1983UTM_11N
// Create the XY name object and set it's properties
IXYEventSourceName pXYEventSourceName = new XYEventSourceNameClass();
IName pXYName;
IXYEventSource pXYEventSource;
pXYEventSourceName.EventProperties = pXYEvent2FieldsProperties;
pXYEventSourceName.SpatialReference = pProjectedCoordinateSystem;
pXYEventSourceName.EventTableName = pTableName;
pXYName = (IName)pXYEventSourceName;
pXYEventSource = (IXYEventSource)pXYName.Open();
// Create a new Map Layer
IFeatureLayer pFLayer = new FeatureLayerClass();
pFLayer.FeatureClass = (IFeatureClass)pXYEventSource;
pFLayer.Name = "Sample XY Event layer";
// Add the layer extension (this is done so that when you edit
// the layer's Source properties and click the Set Data Source
// button, the Add XY Events Dialog appears)
ILayerExtensions pLayerExt;
IFeatureLayerSourcePageExtension pRESPageExt = new XYDataSourcePageExtensionClass();
pLayerExt = (ILayerExtensions)pFLayer;
pLayerExt.AddExtension(pRESPageExt);
pMap.AddLayer(pFLayer);
}
catch (System.Exception SysEx)
{
MessageBox.Show(SysEx.Message, ".NET Error: ", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
