/// <summary>
/// 加载停靠点
/// </summary>
public void loadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, double snapTolerance)
{
INAClass naClass;
INamedSet classes;
classes = m_NAContext.NAClasses;
naClass = classes.get_ItemByName(strNAClassName) as INAClass;
//删除naClasses中添加的项
naClass.DeleteAllRows();
//加载网络分析对象，设置容差值
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = m_NAContext.Locator;
if (snapTolerance > 0)
{
classLoader.Locator.SnapTolerance = snapTolerance;
}
classLoader.NAClass = naClass;
//字段匹配
INAClassFieldMap pNAClassFieldMap = new NAClassFieldMap();
pNAClassFieldMap.CreateMapping(naClass.ClassDefinition, inputFC.Fields);
classLoader.FieldMap = pNAClassFieldMap;
//加载网络分析类
int rowsln = 0;
int rowsLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsln, ref rowsLocated);
((INAContextEdit)m_NAContext).ContextChanged();
}
//加载参与分析的点要素
public static void LoadNANetworkLocations(string strNAClassName,
IFeatureClass inputFC, INAContext m_NAContext, double snapTolerance)
{
//ITable b1 = inputFC as ITable;//将传入的要素类转化为一个Table对象，这个要素类如站点类、障碍点类等。
//int i1 = b1.RowCount(null);//获取行数
INAClass naClass;
INamedSet classes;
classes = m_NAContext.NAClasses; //上下文对象的有关网络分析类的对象集合NamedSet属性
naClass = classes.get_ItemByName(strNAClassName) as INAClass; //通过传入的名称参数，往classes中获取对应的NAClass
naClass.DeleteAllRows(); //删除naClass中的所有要素
INAClassLoader classLoader = new NAClassLoader(); //新建一个NAClassLoader对象
classLoader.Locator = m_NAContext.Locator; //将上下文对象的locator属性赋给classLoader，locator用于确定网络上要加载的要素的位置。
if (snapTolerance > 0)
{
classLoader.Locator.SnapTolerance = snapTolerance; //设置容差
}
classLoader.NAClass = naClass; //给classLoader对象的NAClass属性赋值
//设置字段映射
INAClassFieldMap fieldMap = null;
fieldMap = new NAClassFieldMap();
fieldMap.set_MappedField("FID", "FID"); //set_MappedField方法用于建立源数据到NAClass类的映射
classLoader.FieldMap = fieldMap; //给classLoader对象的FieldMap属性赋值
int rowsIn = 0;
int rowLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsIn, ref rowLocated);//ref类型关键字表示对于该参数，在函数过程中可以读也可以写，相当于引用传递。引用传递参数允许函数成员更改参数的值，并保持该更改。
((INAContextEdit)m_NAContext).ContextChanged();
}
/// <summary>
/// Set solver settings
/// </summary>
/// <param name="strNAClassName">NAClass name</param>
/// <param name="inputFC">Input feature class</param>
/// <param name="maxSnapTolerance">Max snap tolerance</param>
public void LoadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, double maxSnapTolerance)
{
INamedSet classes = m_NAContext.NAClasses;
INAClass naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// Delete existing locations from the specified NAClass
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = m_NAContext.Locator;
if (maxSnapTolerance > 0) ((INALocator3)classLoader.Locator).MaxSnapTolerance = maxSnapTolerance;
classLoader.NAClass = naClass;
// Create field map to automatically map fields from input class to NAClass
INAClassFieldMap fieldMap = new NAClassFieldMapClass();
fieldMap.CreateMapping(naClass.ClassDefinition, inputFC.Fields);
classLoader.FieldMap = fieldMap;
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = m_NAContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(m_NAContext);
// Load network locations
int rowsIn = 0;
int rowsLocated = 0;
classLoader.Load((ICursor)inputFC.Search(null, true), null, ref rowsIn, ref rowsLocated);
// Message all of the network analysis agents that the analysis context has changed.
((INAContextEdit)m_NAContext).ContextChanged();
}
/// <summary>
/// 加载参与分析的点要素
/// 按住Ctrl点击下行链接[Onclick]查看使用
/// <see cref="WhuGIS.ArcEngineTool.NetworkAnalysis.GetPathSolve.ShortPathSolveCommand.OnClick"/>
/// </summary>
/// <param name="strNAClassName"></param>
/// <param name="inputFC"></param>
/// <param name="m_NAContext"></param>
/// <param name="snapTolerance"></param>
public static void LoadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, INAContext m_NAContext,
double snapTolerance)
{
ITable b1 = inputFC as ITable;
int i1 = b1.RowCount(null);
INAClass naClass;
INamedSet classes;
classes = m_NAContext.NAClasses;
naClass = classes.get_ItemByName(strNAClassName) as INAClass;
ITable b2 = naClass as ITable;
int i2 = b2.RowCount(null);
naClass.DeleteAllRows();
ITable b3 = naClass as ITable;
int i3 = b2.RowCount(null);
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = m_NAContext.Locator;
if (snapTolerance > 0)
{
classLoader.Locator.SnapTolerance = snapTolerance; //设置容差
}
classLoader.NAClass = naClass;
//设置字段映射
INAClassFieldMap fieldMap = null;
fieldMap = new NAClassFieldMap();
fieldMap.set_MappedField("FID", "FID");
classLoader.FieldMap = fieldMap;
int rowsIn = 0;
int rowLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsIn, ref rowLocated);
INAClass na = classLoader.NAClass;
ITable b5 = na as ITable;
int i5 = b2.RowCount(null);
ITable b4 = inputFC as ITable;
int i4 = b1.RowCount(null);
((INAContextEdit)m_NAContext).ContextChanged();
}
/// <summary>
/// Load the input table and create field map to map fields from input table to NAClass
/// </summary>
/// <param name="strNAClassName">NAClass name</param>
/// <param name="inputTable">Input table</param>
public void LoadNANetworkLocations(string strNAClassName, ITable inputTable)
{
INamedSet classes = m_NAContext.NAClasses;
INAClass naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// Delete existing rows from the specified NAClass
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader loader = new NAClassLoader();
loader.Locator = m_NAContext.Locator;
loader.Locator.SnapTolerance = 100;
loader.NAClass = naClass;
// Create field map to automatically map fields from input table to NAclass
INAClassFieldMap fieldMap = new NAClassFieldMapClass();
fieldMap.CreateMapping(naClass.ClassDefinition, inputTable.Fields);
loader.FieldMap = fieldMap;
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = m_NAContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(m_NAContext);
// Load input table
int rowsIn = 0;
int rowsLocated = 0;
loader.Load(inputTable.Search(null, true), null, ref rowsIn, ref rowsLocated);
// Message all of the network analysis agents that the analysis context has changed.
INAContextEdit naContextEdit = m_NAContext as INAContextEdit;
naContextEdit.ContextChanged();
}
//装载网络分析元素的位置
private void LoadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, double snapTolerance)
{
try
{
INAClass naClass;
INamedSet classes;
classes = pMainFrm.m_NAContext.NAClasses;
naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// delete existing Locations except if that a barriers
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = pMainFrm.m_NAContext.Locator;
if (snapTolerance > 0)
{
classLoader.Locator.SnapTolerance = snapTolerance;
}
classLoader.NAClass = naClass;
//Create field map to automatically map fields from input class to naclass
INAClassFieldMap fieldMap;
fieldMap = new NAClassFieldMap();
fieldMap.CreateMapping(naClass.ClassDefinition, inputFC.Fields);
classLoader.FieldMap = fieldMap;
//Load Network Locations
int rowsIn = 0;
int rowsLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsIn, ref rowsLocated);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
//*********************************************************************************
// Load Network Locations
//*********************************************************************************
public void LoadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, double maxSnapTolerance)
{
INamedSet classes = m_NAContext.NAClasses;
INAClass naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// Delete existing Locations before loading new ones
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = m_NAContext.Locator;
if (maxSnapTolerance > 0) ((INALocator3)classLoader.Locator).MaxSnapTolerance = maxSnapTolerance;
classLoader.NAClass = naClass;
//Create field map to automatically map fields from input class to NAClass
INAClassFieldMap fieldMap = new NAClassFieldMap();
fieldMap.CreateMapping(naClass.ClassDefinition, inputFC.Fields);
classLoader.FieldMap = fieldMap;
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = m_NAContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(m_NAContext);
//Load Network Locations
int rowsIn = 0;
int rowsLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsIn, ref rowsLocated);
//Message all of the network analysis agents that the analysis context has changed
((INAContextEdit)m_NAContext).ContextChanged();
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_listDisplayTable = new System.Collections.ArrayList();
var activeCategory = naEnv.NAWindow.ActiveCategory as IEngineNAWindowCategory2;
if (activeCategory == null)
{
return(false);
}
IDataLayer dataLayer = activeCategory.DataLayer;
if (dataLayer == null)
{
return(false);
}
// Set up the title of this dialog
String dataLayerName = GetDataLayerName(dataLayer);
if (dataLayerName.Length == 0)
{
return(false);
}
this.Text = "Load Items into " + dataLayerName;
// Make sure the combo box lists only the appropriate possible input data layers
PopulateInputDataComboBox(mapControl, dataLayer);
//Select the first display table from the list
if (cboInputData.Items.Count > 0)
{
cboInputData.SelectedIndex = 0;
}
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboInputData.SelectedIndex >= 0))
{
try
{
// Get a cursor on the source display table (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
// IDisplayTable is implemented by FeatureLayers and StandaloneTables.
//
IDisplayTable displayTable = m_listDisplayTable[cboInputData.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelection.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
{
cursor = displayTable.SearchDisplayTable(null, false);
}
// Get the NAContext from the active analysis layer
INAContext naContext = naEnv.NAWindow.ActiveAnalysis.Context;
// Get the dataset for the active NAClass
IDataset naDataset = activeCategory.NAClass as IDataset;
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = naContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(naContext);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
// Let the user know if some of the rows failed to locate
if (rowsIn != rowsLocated)
{
MessageBox.Show("Out of " + rowsIn + " + rows, " + rowsLocated + " rows were located",
"Loading locations", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loading locations failure", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return(true);
}
return(false);
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_listDisplayTable = new System.Collections.ArrayList();
var activeCategory = naEnv.NAWindow.ActiveCategory as IEngineNAWindowCategory2;
if (activeCategory == null)
return false;
IDataLayer dataLayer = activeCategory.DataLayer;
if (dataLayer == null)
return false;
// Set up the title of this dialog
String dataLayerName = GetDataLayerName(dataLayer);
if (dataLayerName.Length == 0)
return false;
this.Text = "Load Items into " + dataLayerName;
// Make sure the combo box lists only the appropriate possible input data layers
PopulateInputDataComboBox(mapControl, dataLayer);
//Select the first display table from the list
if (cboInputData.Items.Count > 0)
cboInputData.SelectedIndex = 0;
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboInputData.SelectedIndex >= 0))
{
try
{
// Get a cursor on the source display table (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
// IDisplayTable is implemented by FeatureLayers and StandaloneTables.
//
IDisplayTable displayTable = m_listDisplayTable[cboInputData.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelection.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
cursor = displayTable.SearchDisplayTable(null, false);
// Get the NAContext from the active analysis layer
INAContext naContext = naEnv.NAWindow.ActiveAnalysis.Context;
// Get the dataset for the active NAClass
IDataset naDataset = activeCategory.NAClass as IDataset;
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = naContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(naContext);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
// Let the user know if some of the rows failed to locate
if (rowsIn != rowsLocated)
MessageBox.Show("Out of " + rowsIn + " + rows, " + rowsLocated + " rows were located",
"Loading locations", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loading locations failure", MessageBoxButtons.OK, MessageBoxIcon.Error );
}
return true;
}
return false;
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_listDisplayTable = new System.Collections.ArrayList();
// Get the NALayer and NAContext
INALayer naLayer = naEnv.NAWindow.ActiveAnalysis;
INAContext naContext = naLayer.Context;
//Get the active category
IEngineNAWindowCategory2 activeCategory = naEnv.NAWindow.ActiveCategory as IEngineNAWindowCategory2;
if (activeCategory == null)
{
return(false);
}
INAClass naClass = activeCategory.NAClass;
IDataset naDataset = naClass as IDataset;
IDataLayer pDataLayer = activeCategory.DataLayer;
ILayer pLayer = pDataLayer as ILayer;
IFeatureLayer pFeatureLayer = pDataLayer as IFeatureLayer;
IStandaloneTable pStandaloneTable = pDataLayer as IStandaloneTable;
esriGeometryType targetGeoType = esriGeometryType.esriGeometryNull;
String dataLayerName = "";
if (pFeatureLayer != null)
{
if (pLayer.Valid)
{
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
if (pFeatureClass != null)
{
targetGeoType = pFeatureClass.ShapeType;
dataLayerName = pLayer.Name;
}
}
}
else if (pStandaloneTable != null)
{
dataLayerName = pStandaloneTable.Name;
}
if (dataLayerName.Length == 0)
{
return(false);
}
this.Text = "Load Items into " + dataLayerName;
// Loop through all the sourcedisplayTables having targetGeoType to the combo box and the
// list of displayTables
IEnumLayer sourceLayers = null;
ILayer sourceLayer = null;
IDisplayTable sourceDisplayTable = null;
UID searchInterfaceUID = new UID();
if (targetGeoType != esriGeometryType.esriGeometryNull)
{
searchInterfaceUID.Value = typeof(IFeatureLayer).GUID.ToString("B");
sourceLayers = mapControl.Map.get_Layers(searchInterfaceUID, true);
sourceLayer = sourceLayers.Next();
while (sourceLayer != null)
{
IFeatureLayer sourceFeatureLayer = sourceLayer as IFeatureLayer;
sourceDisplayTable = sourceLayer as IDisplayTable;
if ((sourceFeatureLayer != null) && (sourceDisplayTable != null))
{
IFeatureClass sourceFeatureClass = sourceFeatureLayer.FeatureClass;
esriGeometryType sourceGeoType = sourceFeatureClass.ShapeType;
if ((sourceGeoType == targetGeoType) ||
(targetGeoType == esriGeometryType.esriGeometryPoint && sourceGeoType == esriGeometryType.esriGeometryMultipoint))
{
// Add the layer name to the combobox and the layer to the list
cboInputData.Items.Add(sourceLayer.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
sourceLayer = sourceLayers.Next();
}
}
else //if (targetGeoType == esriGeometryType.esriGeometryNull)
{
IStandaloneTableCollection sourceStandaloneTables = mapControl.Map as IStandaloneTableCollection;
IStandaloneTable sourceStandaloneTable = null;
sourceDisplayTable = null;
int count = 0;
if (sourceStandaloneTables != null)
{
count = sourceStandaloneTables.StandaloneTableCount;
}
for (int i = 0; i < count; ++i)
{
sourceStandaloneTable = sourceStandaloneTables.get_StandaloneTable(i);
sourceDisplayTable = sourceStandaloneTable as IDisplayTable;
if ((sourceStandaloneTable != null) && (sourceDisplayTable != null))
{
// Add the table name to the combobox and the layer to the list
cboInputData.Items.Add(sourceStandaloneTable.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
searchInterfaceUID.Value = typeof(INALayer).GUID.ToString("B");
sourceLayers = mapControl.Map.get_Layers(searchInterfaceUID, true);
sourceLayer = sourceLayers.Next();
while (sourceLayer != null)
{
INALayer sourceNALayer = sourceLayer as INALayer;
if (sourceNALayer != null)
{
sourceStandaloneTables = sourceNALayer as IStandaloneTableCollection;
sourceStandaloneTable = null;
sourceDisplayTable = null;
count = 0;
if (sourceStandaloneTables != null)
{
count = sourceStandaloneTables.StandaloneTableCount;
}
for (int i = 0; i < count; ++i)
{
sourceStandaloneTable = sourceStandaloneTables.get_StandaloneTable(i);
sourceDisplayTable = sourceStandaloneTable as IDisplayTable;
if ((sourceStandaloneTable != null) && (sourceDisplayTable != null))
{
// Add the table name to the combobox and the layer to the list
cboInputData.Items.Add(sourceStandaloneTable.Name);
m_listDisplayTable.Add(sourceDisplayTable);
}
}
}
sourceLayer = sourceLayers.Next();
}
}
//Select the first display table from the list
if (cboInputData.Items.Count > 0)
{
cboInputData.SelectedIndex = 0;
}
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboInputData.SelectedIndex >= 0))
{
// Get a cursor on the source display table (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
// IDisplayTable is implemented by FeatureLayers and StandaloneTables.
//
IDisplayTable displayTable = m_listDisplayTable[cboInputData.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelection.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
{
cursor = displayTable.SearchDisplayTable(null, false);
}
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = naContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(naContext);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
return(true);
}
return(false);
}
//װ���������Ԫ�ص�λ��
private void LoadNANetworkLocations(string strNAClassName, IFeatureClass inputFC, double snapTolerance)
{
INAClass naClass;
INamedSet classes;
classes = m_NAContext.NAClasses;
naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// delete existing Locations except if that a barriers
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader classLoader = new NAClassLoader();
classLoader.Locator = m_NAContext.Locator;
if (snapTolerance > 0) classLoader.Locator.SnapTolerance = snapTolerance;
classLoader.NAClass = naClass;
//Create field map to automatically map fields from input class to naclass
INAClassFieldMap fieldMap;
fieldMap = new NAClassFieldMap();
fieldMap.CreateMapping(naClass.ClassDefinition, inputFC.Fields);
classLoader.FieldMap = fieldMap;
//Load Network Locations
int rowsIn = 0;
int rowsLocated = 0;
IFeatureCursor featureCursor = inputFC.Search(null, true);
classLoader.Load((ICursor)featureCursor, null, ref rowsIn, ref rowsLocated);
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_lstLayers = new System.Collections.ArrayList();
this.Text = "Load Locations into " + naEnv.NAWindow.ActiveCategory.Layer.Name;
// Loop through all the layers, adding the point feature layers to the combo box and array
IEnumLayer layers = mapControl.Map.get_Layers(null, true);
ILayer layer;
layer = layers.Next();
while (layer != null)
{
IFeatureLayer fLayer = layer as IFeatureLayer;
IDisplayTable displayTable = layer as IDisplayTable;
if ((fLayer != null) && (displayTable != null))
{
IFeatureClass fClass = fLayer.FeatureClass;
if (fClass.ShapeType == esriGeometryType.esriGeometryPoint)
{
// Add the layer name to the combobox and the layer to the list
cboPointLayers.Items.Add(layer.Name);
m_lstLayers.Add(layer);
}
}
layer = layers.Next();
}
//Select the first point feature layer from the list
if (cboPointLayers.Items.Count > 0)
cboPointLayers.SelectedIndex = 0;
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboPointLayers.SelectedIndex >= 0))
{
// Get the NALayer and NAContext
INALayer naLayer = naEnv.NAWindow.ActiveAnalysis;
INAContext naContext = naLayer.Context;
//Get the active category
IEngineNAWindowCategory activeCategory = naEnv.NAWindow.ActiveCategory;
INAClass naClass = activeCategory.NAClass;
IDataset naDataset = naClass as IDataset;
// Get a cursor to the input features (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
IDisplayTable displayTable = m_lstLayers[cboPointLayers.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelectedFeatures.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
{
cursor = displayTable.SearchDisplayTable(null, false);
}
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
return true;
}
else
{
return false;
}
}
/// <summary>
/// Load the input table and create field map to map fields from input table to NAClass
/// </summary>
/// <param name="strNAClassName">NAClass name</param>
/// <param name="inputTable">Input table</param>
public void LoadNANetworkLocations(string strNAClassName, ITable inputTable)
{
INamedSet classes = m_NAContext.NAClasses;
INAClass naClass = classes.get_ItemByName(strNAClassName) as INAClass;
// Delete existing rows from the specified NAClass
naClass.DeleteAllRows();
// Create a NAClassLoader and set the snap tolerance (meters unit)
INAClassLoader loader = new NAClassLoader();
loader.Locator = m_NAContext.Locator;
loader.Locator.SnapTolerance = 100;
loader.NAClass = naClass;
// Create field map to automatically map fields from input table to NAclass
INAClassFieldMap fieldMap = new NAClassFieldMapClass();
fieldMap.CreateMapping(naClass.ClassDefinition, inputTable.Fields);
loader.FieldMap = fieldMap;
// Avoid loading network locations onto non-traversable portions of elements
INALocator3 locator = m_NAContext.Locator as INALocator3;
locator.ExcludeRestrictedElements = true;
locator.CacheRestrictedElements(m_NAContext);
// Load input table
int rowsIn = 0;
int rowsLocated = 0;
loader.Load(inputTable.Search(null, true), null, ref rowsIn, ref rowsLocated);
// Message all of the network analysis agents that the analysis context has changed.
INAContextEdit naContextEdit = m_NAContext as INAContextEdit;
naContextEdit.ContextChanged();
}
public bool ShowModal(IMapControl3 mapControl, IEngineNetworkAnalystEnvironment naEnv)
{
// Initialize variables
m_okClicked = false;
m_lstLayers = new System.Collections.ArrayList();
this.Text = "Load Locations into " + naEnv.NAWindow.ActiveCategory.Layer.Name;
// Loop through all the layers, adding the point feature layers to the combo box and array
IEnumLayer layers = mapControl.Map.get_Layers(null, true);
ILayer layer;
layer = layers.Next();
while (layer != null)
{
IFeatureLayer fLayer = layer as IFeatureLayer;
IDisplayTable displayTable = layer as IDisplayTable;
if ((fLayer != null) && (displayTable != null))
{
IFeatureClass fClass = fLayer.FeatureClass;
if (fClass.ShapeType == esriGeometryType.esriGeometryPoint)
{
// Add the layer name to the combobox and the layer to the list
cboPointLayers.Items.Add(layer.Name);
m_lstLayers.Add(layer);
}
}
layer = layers.Next();
}
//Select the first point feature layer from the list
if (cboPointLayers.Items.Count > 0)
{
cboPointLayers.SelectedIndex = 0;
}
// Show the window
this.ShowDialog();
// If we selected a layer and clicked OK, load the locations
if (m_okClicked && (cboPointLayers.SelectedIndex >= 0))
{
// Get the NALayer and NAContext
INALayer naLayer = naEnv.NAWindow.ActiveAnalysis;
INAContext naContext = naLayer.Context;
//Get the active category
IEngineNAWindowCategory activeCategory = naEnv.NAWindow.ActiveCategory;
INAClass naClass = activeCategory.NAClass;
IDataset naDataset = naClass as IDataset;
// Get a cursor to the input features (either though the selection set or table)
// Use IDisplayTable because it accounts for joins, querydefs, etc.
IDisplayTable displayTable = m_lstLayers[cboPointLayers.SelectedIndex] as IDisplayTable;
ICursor cursor;
if (chkUseSelectedFeatures.Checked)
{
ISelectionSet selSet;
selSet = displayTable.DisplaySelectionSet;
selSet.Search(null, false, out cursor);
}
else
{
cursor = displayTable.SearchDisplayTable(null, false);
}
// Setup NAClassLoader and Load Locations
INAClassLoader2 naClassLoader = new NAClassLoader() as INAClassLoader2;
naClassLoader.Initialize(naContext, naDataset.Name, cursor);
int rowsIn = 0;
int rowsLocated = 0;
naClassLoader.Load(cursor, null, ref rowsIn, ref rowsLocated);
return(true);
}
else
{
return(false);
}
}
