/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
// TODO: Add ZoomToSelectedFeatures.OnClick implementation
ILayer pLayer = (ILayer)m_mapControl.CustomProperty;
IFeatureLayer pFLayer = (IFeatureLayer)pLayer;
IFeatureSelection pFSel = (IFeatureSelection)pFLayer;
ISelectionSet pSelSet = pFSel.SelectionSet;
IEnumGeometry pEnumGeom = new EnumFeatureGeometry();
IEnumGeometryBind pEnumGeomBind = (IEnumGeometryBind)pEnumGeom;
pEnumGeomBind.BindGeometrySource(null, pSelSet);
IGeometryFactory pGeomFactory = new GeometryEnvironmentClass();
IGeometry pGeom = pGeomFactory.CreateGeometryFromEnumerator(pEnumGeom);
double dblXPer = (pGeom.Envelope.XMax - pGeom.Envelope.XMin) / 10;
double dblYPer = (pGeom.Envelope.YMax - pGeom.Envelope.YMin) / 10;
IEnvelope pEnvel = new EnvelopeClass();
pEnvel.PutCoords(pGeom.Envelope.XMin - dblXPer, pGeom.Envelope.YMin - dblYPer, pGeom.Envelope.XMax + dblXPer, pGeom.Envelope.YMax + dblYPer);
//envelope1.PutCoords(pFLayer1.AreaOfInterest.Envelope.XMin - (pFLayer1.AreaOfInterest.Envelope.XMin * 0.0005), pFLayer1.AreaOfInterest.Envelope.YMin - (pFLayer1.AreaOfInterest.Envelope.YMin * 0.0005), pFLayer1.AreaOfInterest.Envelope.XMax * 1.0005, pFLayer1.AreaOfInterest.Envelope.YMax * 1.0005);
m_mapControl.ActiveView.Extent = pEnvel;
m_mapControl.ActiveView.Refresh();
}
void activeViewEvents_SelectionChanged()
{
///loop through all feature layer and do a partial refresh if the layer is polygon
///This important as selection change only does a partial refresh at geoselection level and since we are drawing polygon at geography phase, this step is essential.
IMap m_Map = m_MxDoc.FocusMap;
ESRI.ArcGIS.esriSystem.UID m_UID = new ESRI.ArcGIS.esriSystem.UID();
m_UID.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}";
IEnumLayer m_EnumLayer = m_Map.Layers[m_UID];
ILayer m_Layer = m_EnumLayer.Next();
IActiveView m_activeview = (IActiveView)m_MxDoc.ActivatedView;
do
{
if (m_Layer is IFeatureLayer)
{
if (m_Layer != null)
{
if (m_Layer.Visible == true)
{
IFeatureSelection m_FeatureSelection = (IFeatureSelection)m_Layer;
ISelectionSet m_SelSet = m_FeatureSelection.SelectionSet;
if (m_SelSet.Count > 0)
{
IEnumGeometry m_EnumGeo;
IEnumGeometryBind m_EnumGeoBind;
m_EnumGeo = new EnumFeatureGeometry();
m_EnumGeoBind = (IEnumGeometryBind)m_EnumGeo;
m_EnumGeoBind.BindGeometrySource(null, m_SelSet);
IGeometryFactory m_GeoFactory = new GeometryEnvironmentClass();
IGeometry m_GeoEnvelop = m_GeoFactory.CreateGeometryFromEnumerator(m_EnumGeo);
m_activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, m_GeoEnvelop.Envelope);
}
else
{
m_activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
}
}
}
m_Layer = m_EnumLayer.Next();
} while (m_Layer != null);
}
//高亮显示查询到的要素集合
private void ZoomToSelectedFeature(IFeatureLayer pFeatureLyr, IQueryFilter pQueryFilter)
{
//符号边线颜色
IRgbColor pLineColor = new RgbColor();
pLineColor.Green = 130;
ILineSymbol ilSymbl = new SimpleLineSymbolClass();
ilSymbl.Color = pLineColor;
ilSymbl.Width = 3;
//定义选中要素的符号为红色
ISimpleFillSymbol ipSimpleFillSymbol = new SimpleFillSymbol();
ipSimpleFillSymbol.Outline = ilSymbl;
RgbColor pFillColor = new RgbColor();
pFillColor.Green = 60;
ipSimpleFillSymbol.Color = pFillColor;
ipSimpleFillSymbol.Style = esriSimpleFillStyle.esriSFSDiagonalCross;
//选取要素集
IFeatureSelection pFtSelection = pFeatureLyr as IFeatureSelection;
pFtSelection.SetSelectionSymbol = true;
pFtSelection.SelectionSymbol = (ISymbol)ipSimpleFillSymbol;
pFtSelection.SelectFeatures(pQueryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
ISelectionSet pSelectionSet = pFtSelection.SelectionSet;
//居中显示选中要素
IEnumGeometry pEnumGeom = new EnumFeatureGeometry();
IEnumGeometryBind pEnumGeomBind = pEnumGeom as IEnumGeometryBind;
pEnumGeomBind.BindGeometrySource(null, pSelectionSet);
IGeometryFactory pGeomFactory = new GeometryEnvironmentClass();
IGeometry pGeom = pGeomFactory.CreateGeometryFromEnumerator(pEnumGeom);
MyMapControl.ActiveView.Extent = pGeom.Envelope;
MyMapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
}
/// <summary>
/// 选择一行，并在地图中显示
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void att_gridview_RowClick(object sender, RowClickEventArgs e)
{
GridView att_gridview = (GridView)sender;
GridHitInfo info = att_gridview.CalcHitInfo(e.X, e.Y);
//只有单击rowinditor时才执行选择行
if (!info.InRowCell)
{
if (info.InRow)
{
//存放selectedrow
ArrayList rows = new ArrayList();
for (int i = 0; i < att_gridview.SelectedRowsCount; i++)
{
if (att_gridview.GetSelectedRows()[i] >= 0)
{
rows.Add(att_gridview.GetDataRow(att_gridview.GetSelectedRows()[i]));
}
}
if (rows.Count > 0)
{
//遍历flayer_list寻找当前属性表对应的图层
for (int i = 0; i < flayer_list.Count; i++)
{
IDataLayer datalayer = flayer_list[i] as IDataLayer;
IWorkspaceName w_name = ((IDatasetName)(datalayer.DataSourceName)).WorkspaceName;
if (att_gridview.Tag.ToString() == w_name.PathName + "\\" + flayer_list[i].Name + "_" + flayer_list[i].DataSourceType)
{
IFeatureClass m_featureclass = flayer_list[i].FeatureClass;
IFeatureSelection m_fselection = flayer_list[i] as IFeatureSelection;
//构造查询条件
IQueryFilter m_queryfilter = new QueryFilterClass();
string key = flayer_list[i].FeatureClass.Fields.get_Field(0).Name;
string m_whereclause = key + "=";
for (int j = 0; j < rows.Count; j++)
{
DataRow m_dr = rows[j] as DataRow;
if (j < 1)
{
m_whereclause += m_dr[0].ToString();
}
else
{
m_whereclause = m_whereclause + " or " + key + "=" + m_dr[0].ToString();
}
}
m_queryfilter.WhereClause = m_whereclause;
//显示查询的要素
m_fselection.SelectFeatures(m_queryfilter, esriSelectionResultEnum.esriSelectionResultNew, false);
ISelectionSet m_selectionset = m_fselection.SelectionSet;
IEnumGeometry m_enumgeometry = new EnumFeatureGeometry();
IEnumGeometryBind m_enumgeobine = m_enumgeometry as IEnumGeometryBind;
m_enumgeobine.BindGeometrySource(null, m_selectionset);
IGeometryFactory m_geofactory = new GeometryEnvironmentClass();
IGeometry m_geometry = m_geofactory.CreateGeometryFromEnumerator(m_enumgeometry);
m_mapControl.ActiveView.Extent = m_geometry.Envelope;
m_mapControl.Refresh();
}
}
}
}
}
}
public void SiteSelection1()
{
//****** Author: James Carpenter
//******** Date: 2/28/2017
//* Description: This procedure automates the site selection process for
//* Jen and Barry's Ice Cream Store. The form takes in criteria
//* and the output is a selection of cities that fit that criteria.
//****** Locals: pMxDoc, pMap, pLayers, pLayer, pCountyLayer, pCityLayer,
//****** pQueryFilter, pCountyFClass, pFCursor, pEnumGeom, pEnumGeomBind,
//****** pGeomFactory, pGeom, pSpatialFilter, pQueryFilter2, pCityFClass,
//****** pFCursor2, pFeature2, pfSel, pActiveView
//****************************************
IMxDocument pMxDoc;
pMxDoc = (IMxDocument)ArcMap.Application.Document;
IMap pMap;
pMap = pMxDoc.FocusMap;
IEnumLayer pLayers;
pLayers = pMap.Layers;
ILayer pLayer;
pLayer = pLayers.Next();
// Delcaring the feature layers
IFeatureLayer pCountyLayer = null;
IFeatureLayer pCityLayer = null;
// Declaring the names of the layers
while (pLayer != null)
{
if (pLayer.Name == "counties")
{
pCountyLayer = (IFeatureLayer)pLayer;
break;
}
else if (pLayer.Name == "cities")
{
pCityLayer = (IFeatureLayer)pLayer;
}
pLayer = pLayers.Next();
}
// Declare variables
int farms;
farms = Convert.ToInt32(textBox1.Text);
int labor;
labor = Convert.ToInt32(textBox2.Text);
int popden;
popden = Convert.ToInt32(textBox3.Text);
int uni;
uni = Convert.ToInt32(textBox4.Text);
double crime;
crime = Convert.ToDouble(textBox5.Text);
// Counties Query
IQueryFilter pQueryFilter;
pQueryFilter = new QueryFilter();
pQueryFilter.WhereClause = "NO_FARMS87 > (" + farms + ") AND AGE_18_64 >= (" + labor + ") AND POP_SQMILE < (" + popden + ")";
IFeatureClass pCountyFClass;
pCountyFClass = pCountyLayer.FeatureClass;
IFeatureCursor pFCursor;
pFCursor = pCountyFClass.Search(pQueryFilter, true);
// Move to the next feature
IFeature pFeature;
pFeature = pFCursor.NextFeature();
// Merge the selected geometries
IEnumGeometry pEnumGeom;
pEnumGeom = new EnumFeatureGeometry();
// Bind the selected county geometries based on the Query Filter
IEnumGeometryBind pEnumGeomBind;
pEnumGeomBind = (IEnumGeometryBind)pEnumGeom;
pEnumGeomBind.BindGeometrySource(pQueryFilter, pCountyFClass);
IGeometryFactory pGeomFactory;
pGeomFactory = (IGeometryFactory) new GeometryEnvironment();
// Create the new geometry
IGeometry pGeom;
pGeom = pGeomFactory.CreateGeometryFromEnumerator(pEnumGeom);
// Spatial Filter
ISpatialFilter pSpatialFilter;
pSpatialFilter = new SpatialFilter();
pSpatialFilter.Geometry = pGeom; // Setting equal to new geometry
pSpatialFilter.GeometryField = "SHAPE";
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; // Intersect new geometry
// Cities Query
IQueryFilter pQueryFilter2;
pQueryFilter2 = new QueryFilter();
pQueryFilter2 = (IQueryFilter)pSpatialFilter; // Cast the spatial filter to the IQueryFilter Interface
pQueryFilter2.WhereClause = "UNIVERSITY = (" + uni + ") AND CRIME_INDE <= (" + crime + ")";
IFeatureClass pCityFClass;
pCityFClass = pCityLayer.FeatureClass;
IFeatureCursor pFCursor2;
pFCursor2 = pCityFClass.Search(pQueryFilter2, true);
// Move to the next feature
IFeature pFeature2;
pFeature2 = pFCursor2.NextFeature();
// Feature Selection
IFeatureSelection pFSel;
pFSel = (IFeatureSelection)pCityLayer; //** QI
pFSel.SelectFeatures(pSpatialFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
// Message Box
string strList = null;
strList = "";
int intNameField = 0;
intNameField = pCityFClass.FindField("NAME");
while (pFeature2 != null)
{
strList = strList + pFeature2.Value[intNameField] + Environment.NewLine;
pFeature2 = pFCursor2.NextFeature();
}
MessageBox.Show("The following cities fit the criteria: \n" + Environment.NewLine + strList);
// Refresh View
IActiveView pActiveView;
pActiveView = (IActiveView)pMap;
pActiveView.Refresh();
}
void activeViewEvents_SelectionChanged()
{
///loop through all feature layer and do a partial refresh if the layer is polygon
///This important as selection change only does a partial refresh at geoselection level and since we are drawing polygon at geography phase, this step is essential.
IMap m_Map = m_MxDoc.FocusMap;
ESRI.ArcGIS.esriSystem.UID m_UID = new ESRI.ArcGIS.esriSystem.UID();
m_UID.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}";
IEnumLayer m_EnumLayer = m_Map.Layers[m_UID];
ILayer m_Layer = m_EnumLayer.Next();
IActiveView m_activeview = (IActiveView)m_MxDoc.ActivatedView;
do
{
if (m_Layer is IFeatureLayer)
{
if (m_Layer != null)
{
if (m_Layer.Visible == true)
{
IFeatureSelection m_FeatureSelection = (IFeatureSelection)m_Layer;
ISelectionSet m_SelSet = m_FeatureSelection.SelectionSet;
if (m_SelSet.Count > 0)
{
IEnumGeometry m_EnumGeo;
IEnumGeometryBind m_EnumGeoBind;
m_EnumGeo = new EnumFeatureGeometry();
m_EnumGeoBind = (IEnumGeometryBind)m_EnumGeo;
m_EnumGeoBind.BindGeometrySource(null, m_SelSet);
IGeometryFactory m_GeoFactory = new GeometryEnvironmentClass();
IGeometry m_GeoEnvelop = m_GeoFactory.CreateGeometryFromEnumerator(m_EnumGeo);
m_activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, m_GeoEnvelop.Envelope);
}
else
{
m_activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
}
}
}
m_Layer = m_EnumLayer.Next();
} while (m_Layer != null);
}
