private void btnOK_Click(object sender, EventArgs e)
{
try
{
if (this.txtExpress.Text == "")
{
//ClsDeclare.g_ErrorHandler.DisplayInformation("请选择查询表达式", false, "确定", null);
return;
}
if (m_frmQuery != null)
{
if (m_frmQuery.IsDisposed == false)
{
m_frmQuery.Close();
m_frmQuery = null;
}
}
esriSelectionResultEnum pResult;
pResult = esriSelectionResultEnum.esriSelectionResultAdd;
switch (this.cboSelectMethod.Text)
{
case "创建一个新的选择结果":
pResult = esriSelectionResultEnum.esriSelectionResultNew;
break;
case "添加到当前选择集中":
pResult = esriSelectionResultEnum.esriSelectionResultAdd;
break;
case "从当前选择结果中移除":
pResult = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
case "从当前选择结果中选择":
pResult = esriSelectionResultEnum.esriSelectionResultAnd;
break;
}
if (m_pCurrentFeatCls == null)
{
return;
}
m_blnSelect = true;
m_pQueryResult = ClsSelectQuery.QueryByAttribute(m_blnSelect, txtExpress.Text.Trim(), pResult, m_pCurrentFeatCls, m_pCurrentLayer);
m_pQueryResultCln.Clear();
m_pQueryResultCln.Add(m_pQueryResult, null, null, null);
m_frmQuery = new FrmQuery();
m_frmQuery.QueryResultCln = m_pQueryResultCln;
m_frmQuery.Show();
ClsDeclare.g_Sys.MapControl.ActiveView.Refresh();
}
catch (Exception)
{
//ClsDeclare.g_ErrorHandler.DisplayInformation("可能表达式有误，请先验证表达式", false, "确定",null);
//throw;
MessageBoxEx.Show("可能表达式有误，请先验证表达式");
}
}
public static ClsMapLayer QueryByAttribute(bool blnSelect, string whereClause, esriSelectionResultEnum pOperator, IFeatureClass pFeatCls, IFeatureLayer pFeatlayer)
{
ClsMapLayer pQueryByAttribute = new ClsMapLayer();
//IActiveView pActiveView;
IQueryFilter pFilter = new QueryFilterClass();
pFilter.SubFields = "*";
pFilter.WhereClause = whereClause;
pQueryByAttribute.FeatCls = pFeatCls;
IDataset pDataset;
pDataset = (IDataset)pFeatCls;
IFeatureSelection pFeatSelection;
ICursor pCursor;
if (blnSelect == true)
{
pQueryByAttribute.FeatLayer = pFeatlayer;
pFeatSelection = (IFeatureSelection)pFeatlayer;
pFeatSelection.SelectFeatures(pFilter, pOperator, false);
pQueryByAttribute.FeatSelectionSet = pFeatSelection.SelectionSet as ISelectionSet2;
pQueryByAttribute.FeatSelectionSet.Search(null, false, out pCursor);
if (pCursor is IFeatureCursor)
{
pQueryByAttribute.FeatCur = (IFeatureCursor)pCursor;
}
return(pQueryByAttribute);
//pActiveView = ClsDeclare.g_pMap as IActiveView;
//pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
}
else
{
pQueryByAttribute.FeatLayer = pFeatlayer;
//esriSelectionOption pSelectionOption=new esriSelectionOption();
pQueryByAttribute.FeatSelectionSet = pQueryByAttribute.FeatCls.Select(pFilter, esriSelectionType.esriSelectionTypeHybrid, (esriSelectionOption)(int)pOperator, pDataset.Workspace) as ISelectionSet2;
pQueryByAttribute.FeatSelectionSet.Search(null, false, out pCursor);
if (pCursor is IFeatureCursor)
{
pQueryByAttribute.FeatCur = (IFeatureCursor)pCursor;
}
return(pQueryByAttribute);
}
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
if (m_hookHelper != null)
{
ClsMapLayer pConvert = new ClsMapLayer();
IGeometry pGeometry;
IActiveView pActiveView = m_hookHelper.ActiveView;
IPoint pPoint = pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
pGeometry = (IGeometry)pPoint;
if (ClsDeclare.g_pMap.SelectionCount != 0)
{
ClsDeclare.g_pMap.ClearSelection();
}
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
ISelectionEnvironment pSelectEnv = new SelectionEnvironment();
double Length;
Length = pConvert.ConvertPixelDistanceToMapDistance(pActiveView, pSelectEnv.SearchTolerance);
ITopologicalOperator pTopoOpera;
IGeometry pBuffer;
pTopoOpera = (ITopologicalOperator)pGeometry;
pBuffer = pTopoOpera.Buffer(Length);
pGeometry = (IGeometry)m_pMapControl.TrackCircle();
Application.DoEvents();
m_pMapControl.MousePointer = esriControlsMousePointer.esriPointerHourglass;
if (pGeometry != null)
{
if (pGeometry.Envelope.IsEmpty)
{
pGeometry = pBuffer.Envelope;
}
}
esriSelectionResultEnum pselecttype = new esriSelectionResultEnum();
switch (Shift)
{
case 0:
{
pselecttype = esriSelectionResultEnum.esriSelectionResultNew;
switch (mvarSelectMethod)
{
case "New":
pselecttype = esriSelectionResultEnum.esriSelectionResultNew;
break;
case "Add":
pselecttype = esriSelectionResultEnum.esriSelectionResultAnd;
break;
case "Sub":
pselecttype = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
case "Xor":
pselecttype = esriSelectionResultEnum.esriSelectionResultXOR;
break;
}
break;
}
case 1:
pselecttype = esriSelectionResultEnum.esriSelectionResultAdd;
break;
case 2:
pselecttype = esriSelectionResultEnum.esriSelectionResultXOR;
break;
case 3:
pselecttype = esriSelectionResultEnum.esriSelectionResultNew;
break;
case 4:
pselecttype = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
}
if (m_FeatClsCln == null)
{
bool blntemp = false;
m_pQueryResultCln = new Collection();
ClsSelectQuery.SelectGeometry(ref blntemp, pGeometry, pselecttype, ref m_pQueryResultCln);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
if (m_frmQuery == null)
{
m_frmQuery = new FrmQuery();
}
if (m_frmQuery.IsDisposed)
{
m_frmQuery = new FrmQuery();
}
m_frmQuery.QueryResultCln = m_pQueryResultCln;
m_frmQuery.ReLoadQueryResult();
m_frmQuery.Visible = false;
m_frmQuery.Show((Form)(ClsDeclare.g_Sys.FrmMain));
}
m_pQueryResultCln = null;
m_pMapControl.MousePointer = esriControlsMousePointer.esriPointerDefault;
}
else if (m_sceneHookHelper != null)
{
}
else if (m_globeHookHelper != null)
{
}
}
public static void PfgisGetClosestFeature(IMap pMap, IPoint pSearchPt, ref Collection pSelected, ref IFeature pFeatureClosest)
{
ClsMapLayer pConvert = new ClsMapLayer();
//初始化返回值
pSelected = new Collection();
pFeatureClosest = null;
//设置搜索范围
IEnvelope pSrchEnv;
pSrchEnv = pSearchPt.Envelope;
double SearchDist;
SearchDist = 4d;
IActiveView pActiveView;
pActiveView = pMap as IActiveView;
SearchDist = ClsMapLayer.ConvertPixelsToMapUnits(pActiveView, SearchDist);
pSrchEnv.Width = SearchDist;
pSrchEnv.Height = SearchDist;
pSrchEnv.CenterAt(pSearchPt);
UIDClass pUID = new UIDClass();
pUID.Value = "{E156D7E5-22AF-11D3-9F99-00C04F6BC78E}";
IEnumLayer pLayers;
pLayers = pMap.get_Layers(pUID, true);
ILayer pLayer;
pLayer = pLayers.Next();
while (pLayer != null)
{
IGeoFeatureLayer pGeoLayer;
pGeoLayer = (IGeoFeatureLayer)pLayer;
if (pGeoLayer.Selectable && pGeoLayer.Visible && pGeoLayer.FeatureClass != null)
{
IIdentify2 pID;
pID = (IIdentify2)pGeoLayer;
//根据查询范围执行查询操作
IArray pArray;
pArray = pID.Identify(pSrchEnv, null);
IFeatureIdentifyObj pFeatIdObj;
IRowIdentifyObject pRowObj;
IFeature pFeature;
if (pArray != null)
{
for (int j = 0; j < pArray.Count; j++)
{
if (pArray.get_Element(j) is IFeatureIdentifyObj)
{
pFeatIdObj = pArray.get_Element(j) as IFeatureIdentifyObj;
pRowObj = pFeatIdObj as IRowIdentifyObject;
pFeature = pRowObj.Row as IFeature;
pSelected.Add(pFeature, null, null, null);
}
}
pArray.RemoveAll();
}
}
pLayer = pLayers.Next();
}
ClsSearch.PfgisGetClosestFeatureInCollection(SearchDist, pSelected, pSearchPt, ref pFeatureClosest);
}
public void PopulateFeatColTree(ClsMapLayer pQueryResult)
{
if (pQueryResult == null)
{
return;
}
if (pQueryResult.FeatLayer == null || pQueryResult.FeatCln == null)
{
return;
}
if (pQueryResult.FeatCln.Count < 1)
{
return;
}
try
{
m_dictAdded = new Dictionary <object, string>();
tvwFeatures.Nodes.Clear();
TreeNode RootNode = new TreeNode();
RootNode.Text = "查询结果";
RootNode.Tag = "查询结果";
this.tvwFeatures.Nodes.Add(RootNode);
TreeNode pNewNode = new TreeNode();
pNewNode.Text = "当前链接信息";
pNewNode.Tag = "当前链接信息";
this.tvwFeatures.Nodes.Add(pNewNode);
TreeNode curNode = null;
curNode = RootNode.Nodes.Add(pQueryResult.FeatLayer.Name);
curNode.Tag = "地物层";
curNode.Expand();
Collection pFeatCol;
IFeature pFeature;
TreeNode xNode = null;
pFeatCol = pQueryResult.FeatCln;
for (int i = 1; i <= pFeatCol.Count; i++)
{
pFeature = pFeatCol[i] as IFeature;
if (pFeature == null)
{
continue;
}
if (!(m_dictAdded.ContainsValue(Convert.ToString(pFeature.OID))))
{
m_dictAdded.Add(pFeature, Convert.ToString(pFeature.OID));
xNode = curNode.Nodes.Add(GetKey(pFeature, i), GetString(pFeature));
xNode.Tag = pFeature;
}
}
lblFeatCount.Text = "查找到 " + m_dictAdded.Count + " 个要素";
this.tvwFeatures.ExpandAll();
if (this.tvwFeatures.Nodes[0].Nodes.Count > 0)
{
if (this.tvwFeatures.Nodes[0].Nodes[0].Nodes.Count > 0)
{
this.tvwFeatures.SelectedNode = this.tvwFeatures.Nodes[0].Nodes[0].Nodes[0];
pFeature = tvwFeatures.SelectedNode.Tag as IFeature;
PopulateGridFromFeature(pFeature);
}
}
}
catch (Exception ex)
{
MessageBox.Show("错误", ex.StackTrace, MessageBoxButtons.OK, MessageBoxIcon.Error);
//ClsDeclare.g_ErrorHandler.HandleError(true, null, 0, null, ex.StackTrace);
throw;
}
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
try
{
//if (ClsDeclare.g_pMap.SelectionCount != 0)
// ClsDeclare.g_pMap.ClearSelection();
ClsMapLayer pConvert = new ClsMapLayer();
IActiveView pActiveView;
pActiveView = m_hookHelper.ActiveView;
IPoint pPoint;
pPoint = pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
ISelectionEnvironment pSelectEnv = new SelectionEnvironmentClass();
double Length;
Length = pConvert.ConvertPixelDistanceToMapDistance(pActiveView, pSelectEnv.SearchTolerance);
ITopologicalOperator pTopoOpera;
IGeometry pBuffer;
pTopoOpera = (ITopologicalOperator)pPoint;
pBuffer = pTopoOpera.Buffer(Length);
m_pGeometry = pBuffer.Envelope;
esriSelectionResultEnum pSelectType = new esriSelectionResultEnum();
switch (Shift)
{
case 0:
{
pSelectType = esriSelectionResultEnum.esriSelectionResultNew;
switch (mvarSelectMethod)
{
case "New": //新建选择结果集
pSelectType = esriSelectionResultEnum.esriSelectionResultNew;
break;
case "Add": //增加选择结果集 按下Shift键
pSelectType = esriSelectionResultEnum.esriSelectionResultAnd;
break;
case "Sub": //减少选择结果集 按下Alt键
pSelectType = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
case "Xor": //对已有的选择集做异或 按下Ctrl键
pSelectType = esriSelectionResultEnum.esriSelectionResultXOR;
break;
}
break;
}
case 1:
pSelectType = esriSelectionResultEnum.esriSelectionResultAdd;
break;
case 2:
pSelectType = esriSelectionResultEnum.esriSelectionResultXOR;
break;
case 3:
pSelectType = esriSelectionResultEnum.esriSelectionResultNew;
break;
case 4:
pSelectType = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
}
if (m_FeatClsCln == null)
{
bool blntemp = true;
m_pQueryResultCln = new Collection();
ClsSelectQuery.SelectGeometry(ref blntemp, m_pGeometry, pSelectType, ref m_pQueryResultCln);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
//TODO: FrmQuery的用法
if (m_frmQuery == null)
{
m_frmQuery = new FrmQuery();
}
if (m_frmQuery.IsDisposed)
{
m_frmQuery = new FrmQuery();
}
m_frmQuery.QueryResultCln = m_pQueryResultCln;
m_frmQuery.ReLoadQueryResult();
m_frmQuery.Visible = false;
m_frmQuery.Show((Form)(ClsDeclare.g_Sys.FrmMain));
}
m_pQueryResultCln = null;
if ((ClsDeclare.g_pMap.SelectionCount > ClsDeclare.g_Sys.MaxSelectCount) && (ClsDeclare.g_Sys.MaxSelectCount != 0))
{
//if (ClsDeclare.g_ErrorHandler.DisplayInformation("你选择的结果大于" + Convert.ToString(ClsDeclare.g_Sys.MaxSelectCount) + "个地物，是否继续选择操作?", true, "确定", "取消") == false)
{
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
ClsDeclare.g_pMap.ClearSelection();
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
}
}
}
catch (Exception)
{
//ClsDeclare.g_ErrorHandler.HandleError(true, null, 0, null, ex.StackTrace);
throw;
}
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
if (m_hookHelper != null)
{
ClsMapLayer pConvertPixelDistanceToMapDistance = new ClsMapLayer();
IEnvelope pEnv;
IFeature pFeat = null;
IActiveView pActiveView;
ICursor pCursor = null;
IFeatureCursor pFeatCursor;
IGeometry pGeo;
IFeatureLayer pFeatLyr;
ICompositeLayer pGroupLyr;
IFeatureSelection pFeatSel;
pEnv = new EnvelopeClass();
if (ClsDeclare.g_pMap.SelectionCount < 1)
{
//ClsDeclare.g_ErrorHandler.DisplayInformation("图面上没有选择地物，无法放大", false, "确定",null);
return;
}
try
{
for (int i = 0; i < ClsDeclare.g_pMap.LayerCount; i++)
{
if (ClsDeclare.g_pMap.get_Layer(i) is IGroupLayer && (ClsDeclare.g_pMap.get_Layer(i).Name != "示意图"))
{
pGroupLyr = ClsDeclare.g_pMap.get_Layer(i) as ICompositeLayer;
for (int j = 0; j < pGroupLyr.Count; j++)
{
if (pGroupLyr.get_Layer(j) is IGeoFeatureLayer)
{
pFeatLyr = pGroupLyr.get_Layer(j) as IFeatureLayer;
pFeatSel = (IFeatureSelection)pFeatLyr;
if (pFeatSel.SelectionSet.Count == 0)
{
continue;
}
pFeatSel.SelectionSet.Search(null, false, out pCursor);
pFeatCursor = (IFeatureCursor)pCursor;
pFeat = pFeatCursor.NextFeature();
while (pFeat != null)
{
pGeo = pFeat.Shape;
pEnv.Union(pGeo.Envelope);
pFeat = pFeatCursor.NextFeature();
}
}
}
}
else if (ClsDeclare.g_pMap.get_Layer(i) is IGeoFeatureLayer)
{
pFeatLyr = ClsDeclare.g_pMap.get_Layer(i) as IFeatureLayer;
pFeatSel = (IFeatureSelection)pFeatLyr;
if (pFeatSel.SelectionSet.Count == 0)
{
continue;
}
pFeatSel.SelectionSet.Search(null, false, out pCursor);
pFeatCursor = (IFeatureCursor)pCursor;
pFeat = pFeatCursor.NextFeature();
while (pFeat != null)
{
pGeo = pFeat.Shape;
pEnv.Union(pGeo.Envelope);
pFeat = pFeatCursor.NextFeature();
}
}
}
pActiveView = (IActiveView)ClsDeclare.g_pMap;
double dblLen;
dblLen = pConvertPixelDistanceToMapDistance.ConvertPixelDistanceToMapDistance(pActiveView, 30);
pEnv.Expand(dblLen, dblLen, false);
pActiveView.Extent = pEnv;
pActiveView.Refresh();
}
catch (Exception)
{
//ClsDeclare.g_ErrorHandler.DisplayInformation(ex.Message, false, "确定",null);
throw;
}
}
else if (m_sceneHookHelper != null)
{
}
else if (m_globeHookHelper != null)
{
}
}
//private static Collection FunGetFeaLyrCol(IMap iMap)
//{
// throw new NotImplementedException();
//}
/// <summary>
/// 通过几何图形查询
/// </summary>
/// <param name="blnSelect"></param>
/// <param name="pGeometry"></param>
/// <param name="pFeatCls"></param>
/// <param name="pselecttype"></param>
/// <param name="pFeatlayer"></param>
/// <returns></returns>
public static ClsMapLayer QueryByGeometry(bool blnSelect, IGeometry pGeometry, IFeatureClass pFeatCls, esriSelectionResultEnum pselecttype, IFeatureLayer pFeatlayer)
{
ClsMapLayer pQueryByGeometry = new ClsMapLayer();
pQueryByGeometry.FeatCls = pFeatCls;
IDataset pDataset;
pDataset = (IDataset)pFeatCls;
IFeatureSelection pFeatSelection;
ICursor pCursor = null;
ISpatialFilter pSpatialFilter = new SpatialFilterClass();
pSpatialFilter.Geometry = pGeometry;
switch (pFeatCls.ShapeType)
{
case esriGeometryType.esriGeometryPoint:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
break;
case esriGeometryType.esriGeometryPolyline:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
break;
case esriGeometryType.esriGeometryPolygon:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
break;
default:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelUndefined;
break;
}
pSpatialFilter.GeometryField = pFeatCls.ShapeFieldName;
ISpatialFilter pFilter;
pFilter = pSpatialFilter;
if (blnSelect == true)
{
pFeatSelection = (IFeatureSelection)pFeatlayer;
pFeatSelection.SelectFeatures(pFilter, pselecttype, false);
pQueryByGeometry.FeatLayer = pFeatlayer;
pQueryByGeometry.FeatSelectionSet = pFeatSelection.SelectionSet as ISelectionSet2;
pQueryByGeometry.FeatSelectionSet.Search(null, false, out pCursor);
if (pCursor is IFeatureCursor)
{
pQueryByGeometry.FeatCur = (IFeatureCursor)pCursor;
}
return(pQueryByGeometry);
}
else
{
pFeatSelection = (IFeatureSelection)pFeatlayer;
pFeatSelection.SelectFeatures(pFilter, pselecttype, false);
//esriSelectionOption pSelectionOption;
//pSelectionOption = pselecttype as esriSelectionResultEnum;
pQueryByGeometry.FeatLayer = pFeatlayer;
pQueryByGeometry.FeatSelectionSet = pQueryByGeometry.FeatCls.Select(pFilter, esriSelectionType.esriSelectionTypeHybrid, (esriSelectionOption)((int)pselecttype), pDataset.Workspace) as ISelectionSet2;
pQueryByGeometry.FeatSelectionSet.Search(null, false, out pCursor);
if (pCursor is IFeatureCursor)
{
pQueryByGeometry.FeatCur = (IFeatureCursor)pCursor;
}
return(pQueryByGeometry);
}
}