//空间信息查询确定按钮
private void Btn_QueryOk_Click(object sender, EventArgs e)
{
//获得图层ID
int iLyrID = -1;
for (int i = 0; i < axMapControl_1.LayerCount; i++)
{
if (axMapControl_1.get_Layer(i).Name == Cbx_LyrName.Text)
{
iLyrID = i;
break;
}
}
//获取图层信息及要素集
pFeaLyr = axMapControl_1.get_Layer(iLyrID) as IFeatureLayer;
IFeatureClass pFC = pFeaLyr.FeatureClass;
//获得字段的ID
int iClmID = -1;
for (int i = 0; i < pFC.Fields.FieldCount; i++)
{
if (pFC.Fields.get_Field(i).Name == "Name" || pFC.Fields.get_Field(i).Name == "name")
{
iClmID = i;
break;
}
}
//开始查询
if (iClmID != -1)
{
//初始化一个条件过滤器
IQueryFilter qfilter = new QueryFilter();
string ColumName = pFC.Fields.get_Field(iClmID).Name;
qfilter.WhereClause = ColumName + " like'%" + Txt_Query.Text + "%'";
IFeatureCursor fCursor = pFC.Search(qfilter, false);
//初始化数据表
DataTable DT = new DataTable();
//数据表字段填充
for (int i = 0; i < fCursor.Fields.FieldCount; i++)
{
DT.Columns.Add(fCursor.Fields.get_Field(i).Name, typeof(string));
}
//清除地图选择集
axMapControl_1.Map.ClearSelection();
//清除Gridview中的字段，解除gridcontrol数据源
GridView_Info.Columns.Clear();
GridControl_Info.DataSource = null;
//数据填充
for (int i = 0; i < pFC.FeatureCount(qfilter); i++)
{
IFeature feature = fCursor.NextFeature();
axMapControl_1.Map.SelectFeature(axMapControl_1.get_Layer(iLyrID), feature);
DataRow dr = DT.NewRow();
for (int j = 0; j < feature.Fields.FieldCount; j++)
{
dr[j] = feature.get_Value(j).ToString();
}
DT.Rows.Add(dr);
}
//绑定结果是
GridControl_Info.DataSource = DT;
for (int i = 0; i < GridView_Info.Columns.Count; i++)
{
if (GridView_Info.Columns[i].Name == "colshape" || GridView_Info.Columns[i].Name == "colShape")
{
GridView_Info.Columns[i].Visible = false;
}
}
//地图窗口缩放到选择位置
IFeatureSelection featureSelection = pFeaLyr as IFeatureSelection;
if (featureSelection.SelectionSet.Count == 0)
{
return;
}
IEnumGeometryBind tEnumGeometryBind = new EnumFeatureGeometryClass();
tEnumGeometryBind.BindGeometrySource(null, featureSelection.SelectionSet);
IEnumGeometry tEnumGeometry = (IEnumGeometry)tEnumGeometryBind;
IGeometryFactory tGeometryFactory = new GeometryEnvironmentClass();
IGeometry tGeometry = tGeometryFactory.CreateGeometryFromEnumerator(tEnumGeometry);
//缓冲处理，使处于边界的元素在视图中能够完全显示
ITopologicalOperator mTopologicalOperator = (ITopologicalOperator)tGeometry;
IGeometry mPolygonBuffer = mTopologicalOperator.Buffer(0.001) as IGeometry;
axMapControl_1.Extent = mPolygonBuffer.Envelope;
axMapControl_1.ActiveView.Refresh();
}
else
{
MessageBox.Show("该图层没有名称字段！！！");
}
}
private void FlashFeature(IQueryFilter queryFilter)
{
if (_pipeData == null)
_pipeData = new List<string>();
else
_pipeData.Clear();
try
{
//---------------------------------------------------------------------
// CHANGED: CR23 (Merged features)
// Flash all the features relating to the selected incid at once.
// This method may be triggered more than once if there are too
// many to pass via the Named Pipes in one go.
//
IEnumGeometryBind enumGeometryBind = new EnumFeatureGeometryClass();
enumGeometryBind.BindGeometrySource(null, _hluFeatureSelection.SelectionSet.Select(queryFilter, esriSelectionType.esriSelectionTypeHybrid, esriSelectionOption.esriSelectionOptionNormal, null));
IGeometryFactory geometryFactory = new GeometryEnvironmentClass();
IGeometry geom = geometryFactory.CreateGeometryFromEnumerator((IEnumGeometry)enumGeometryBind);
IMxDocument mxDoc = (IMxDocument)_application.Document;
IActiveView activeView = mxDoc.FocusMap as IActiveView;
IScreenDisplay screenDisplay = activeView.ScreenDisplay;
//---------------------------------------------------------------------
//---------------------------------------------------------------------
// FIX: 018 Bring ArcGIS and MapInfo into line by flashing all features twice
FlashGeometry(geom, screenDisplay, 300, 2);
//---------------------------------------------------------------------
}
catch { }
}
private void ZoomSelectedCursor(IQueryFilter queryFilter)
{
if ((queryFilter == null) || (_hluFeatureClass == null) || (_hluView == null)) return;
IEnumGeometryBind enumGeometryBind = new EnumFeatureGeometryClass();
enumGeometryBind.BindGeometrySource(queryFilter, _hluFeatureClass);
IGeometryFactory geometryFactory = new GeometryEnvironmentClass();
IGeometry geom = geometryFactory.CreateGeometryFromEnumerator((IEnumGeometry)enumGeometryBind);
_hluView.Extent = geom.Envelope;
_hluView.PartialRefresh(esriViewDrawPhase.esriViewGeography, _hluLayer, _hluView.Extent);
}
private void ZoomSelected()
{
if ((_hluFeatureClass == null) || (_hluView == null)) return;
if (_hluFeatureSelection == null)
_hluFeatureSelection = (IFeatureSelection)_hluFeatureClass;
if (_hluFeatureSelection.SelectionSet.Count == 0) return;
IEnumGeometryBind enumGeometryBind = new EnumFeatureGeometryClass();
enumGeometryBind.BindGeometrySource(null, _hluFeatureSelection.SelectionSet);
IGeometryFactory geometryFactory = new GeometryEnvironmentClass();
IGeometry geom = geometryFactory.CreateGeometryFromEnumerator((IEnumGeometry)enumGeometryBind);
_hluView.Extent = geom.Envelope;
_hluView.PartialRefresh(esriViewDrawPhase.esriViewGeography, _hluLayer, _hluView.Extent);
}
// zooms to features in the map that correspond to selected features in the list view
private void btnZoomSelected_Click(object sender, System.EventArgs e)
{
try
{
IQueryFilter pQueryFilter = new QueryFilterClass();
IFeatureClass pFeatureClass = m_pFeatureLayer.FeatureClass;
// build array of selected OIDs
string[] OID = new string[lvGPS.SelectedItems.Count];
for(int x = 0; x < lvGPS.SelectedItems.Count; x++)
{
OID[x] = lvGPS.SelectedItems[x].Text;
}
string OIDs = String.Join(",",OID);
// build the whereclause
string whereclause = pFeatureClass.OIDFieldName + " IN (" + OIDs + ")";
Debug.WriteLine(whereclause);
pQueryFilter.WhereClause = whereclause;
// bind query filter resultant geometry into a geometry bag
IEnumGeometryBind pEnumBind = new EnumFeatureGeometryClass();
IGeometryFactory pGeomFactory = new GeometryEnvironmentClass();
pEnumBind.BindGeometrySource(pQueryFilter,pFeatureClass);
IGeometryBag pGeometryBag = (IGeometryBag)pGeomFactory.CreateGeometryFromEnumerator((IEnumGeometry)pEnumBind);
IGeometryCollection pGeomCollection = (IGeometryCollection)pGeometryBag;
// TODO:
//IMxDocument pMxDoc = (IMxDocument)m_pApp.Document;
IActiveView pActiveView = (IActiveView)m_pISDUTExt.FocusMap; //pMxDoc.FocusMap;
//util.Utils.Release(pMxDoc);
IEnvelope pEnv = pGeometryBag.Envelope;
if(pGeomCollection.GeometryCount == 1)
{
// if only one point the do a pan instead of a zoom
IPoint pPoint = new PointClass();
pPoint.PutCoords(pEnv.XMin,pEnv.YMin);
// get SR of featureclass
IGeoDataset pGeodataset = (IGeoDataset)m_pFeatureLayer.FeatureClass;
pPoint.SpatialReference = pGeodataset.SpatialReference;
// project point to match focus map SR
// TODO:
//pMxDoc = (IMxDocument)m_pApp.Document;
pPoint.Project(m_pISDUTExt.FocusMap.SpatialReference);// pMxDoc.FocusMap.SpatialReference);
//util.Utils.Release(pMxDoc);
IEnvelope pPanEnv = pActiveView.Extent;
pPanEnv.CenterAt(pPoint);
pActiveView.Extent = pPanEnv;
}
else
{
pEnv.Expand(1.1,1.1,true);
pActiveView.Extent = pEnv;
}
pActiveView.Refresh();
}
catch(Exception ex)
{
util.Logger.Write(" Descrip : Zooms to features on the map the correspond with items selected in the list view." +
"\n Message : " + ex.Message +
"\n StackTrc : " + ex.StackTrace,util.Logger.LogLevel.Debug);
MessageBox.Show(ex.Message + "\n" + ex.StackTrace);
Debug.WriteLine(ex.Message + "\n" + ex.StackTrace);
}
//lvGPS.Focus();
}
