C# 如何使用C语言在ArcGIS中选择要素和高亮显示#

您好，下面是基于属性放大arcGIS对象的代码，现在我需要的是能够使用选择功能（在地图上的区域上单击鼠标右键并选择功能）高亮显示该区域

目前，我有一个事件将进行缩放。我想将此选择添加到同一属性

提前谢谢你

ESRI.ArcGIS.Carto.ILayer layer = GetLayersClass.GetFieldBoundaryLayer;
if (layer is ESRI.ArcGIS.Carto.IGroupLayer)
{
    ESRI.ArcGIS.Carto.IGroupLayer groupLayer = layer as ESRI.ArcGIS.Carto.IGroupLayer;
    ICompositeLayer pCompositeLayer = layer as ICompositeLayer;
    int layers = pCompositeLayer.Count;
    ILayer pLayer = pCompositeLayer.Layer[0];

    IFeatureLayer pFeatureLayer = (IFeatureLayer)pLayer;

    IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
    IQueryFilter pFilter = new QueryFilterClass();
    pFilter.WhereClause = "RightID = '" + selectedRightID.ToString() + "'";

    IFeatureCursor pFeatureCursor = pFeatureClass.Search(pFilter, false);
    IFeature pFeature = pFeatureCursor.NextFeature();

    if (pFeature == null)
    {
        System.Windows.Forms.MessageBox.Show("This section doesn't exist");
        return;
    }

    IApplication m_application = ArcMap.Application;
    IMxDocument pMxDoc = (IMxDocument)m_application.Document;
    IActiveView pActiveView = (IActiveView)pMxDoc.FocusMap;

    IEnvelope pEnv = pFeature.Shape.Envelope;
    pEnv.Expand(1.1, 1.1, true);

    pActiveView.Extent = pEnv;

    pActiveView.Refresh();

我尝试添加这段代码，我认为这将为选择添加特定的功能。 但这也没什么好运气

IFeatureSelection pfeatSelect = pFeatureLayer as IFeatureSelection;
pfeatSelect.Add(pFeature);

---

如果我理解正确，您所需要的就是：

IFeatureSelection featSelect = pFeatureLayer as IFeatureSelection;
featSelect.SelectFeatures(pFilter, esriSelectionResultEnum.esriSelectionResultNew, false);

---

这将选择与您的过滤器匹配的所有功能。

如果我理解正确，您所需要的就是：

IFeatureSelection featSelect = pFeatureLayer as IFeatureSelection;
featSelect.SelectFeatures(pFilter, esriSelectionResultEnum.esriSelectionResultNew, false);

---

这将选择与您的过滤器匹配的所有功能。

此解决方案适用于我

            IFeatureLayer PFeaLayer = (IFeatureLayer)pLayer;
            IFeatureSelection PFeaSel = (IFeatureSelection)PFeaLayer;
            int OIDIndex = PFeature.Fields.FindField("OBJECTID");
            PFeaSel.SelectionSet.Add(Convert.ToInt32(PFeature.get_Value(OIDIndex)));
            ISelectionSet PFeaSelSet = PFeaSel.SelectionSet;
            IEnumGeometry pEnumGeom = new EnumFeatureGeometryClass();
            IEnumGeometryBind pEnumGeomBind = (IEnumGeometryBind)pEnumGeom;
            pEnumGeomBind.BindGeometrySource(null, PFeaSelSet);
            IGeometryFactory pGeomFactory = new GeometryEnvironmentClass();
            IGeometry pGeom = pGeomFactory.CreateGeometryFromEnumerator(pEnumGeom);
            IMxDocument pMxDoc = ArcMap.Document as IMxDocument;
            IActiveView activeView = pMxDoc.ActiveView;
            double midX = (pGeom.Envelope.XMax + pGeom.Envelope.XMin) / 2;
            double midY = (pGeom.Envelope.YMax + pGeom.Envelope.YMin) / 2;
            IPoint pPoint = new PointClass();
            pPoint.SpatialReference = pGeom.Envelope.SpatialReference;
            pPoint.PutCoords(midX, midY);
            pPoint.Project(activeView.Extent.SpatialReference);
            IEnvelope pCurrentEnvelope = activeView.Extent;
            pCurrentEnvelope.CenterAt(pPoint);
            activeView.Extent = pCurrentEnvelope;
            activeView.Refresh();

---

这个解决方案对我有效

            IFeatureLayer PFeaLayer = (IFeatureLayer)pLayer;
            IFeatureSelection PFeaSel = (IFeatureSelection)PFeaLayer;
            int OIDIndex = PFeature.Fields.FindField("OBJECTID");
            PFeaSel.SelectionSet.Add(Convert.ToInt32(PFeature.get_Value(OIDIndex)));
            ISelectionSet PFeaSelSet = PFeaSel.SelectionSet;
            IEnumGeometry pEnumGeom = new EnumFeatureGeometryClass();
            IEnumGeometryBind pEnumGeomBind = (IEnumGeometryBind)pEnumGeom;
            pEnumGeomBind.BindGeometrySource(null, PFeaSelSet);
            IGeometryFactory pGeomFactory = new GeometryEnvironmentClass();
            IGeometry pGeom = pGeomFactory.CreateGeometryFromEnumerator(pEnumGeom);
            IMxDocument pMxDoc = ArcMap.Document as IMxDocument;
            IActiveView activeView = pMxDoc.ActiveView;
            double midX = (pGeom.Envelope.XMax + pGeom.Envelope.XMin) / 2;
            double midY = (pGeom.Envelope.YMax + pGeom.Envelope.YMin) / 2;
            IPoint pPoint = new PointClass();
            pPoint.SpatialReference = pGeom.Envelope.SpatialReference;
            pPoint.PutCoords(midX, midY);
            pPoint.Project(activeView.Extent.SpatialReference);
            IEnvelope pCurrentEnvelope = activeView.Extent;
            pCurrentEnvelope.CenterAt(pPoint);
            activeView.Extent = pCurrentEnvelope;
            activeView.Refresh();

---

我确实尝试过这段代码，在“if”条件之前进行了IFeatureSelection，但仍然无法将其高亮显示（当我使用鼠标右键进行交互时，它会以蓝色边框高亮显示）。是否有其他方法可以实现这一点？？？@sss111，下面是使用“spatialfilter”解决问题的方法在上，我确实尝试了这段代码，并在“if”条件之前进行了IFeatureSelection，但仍然无法将其高亮显示（当我使用鼠标右键进行交互时，它会以蓝色边框高亮显示）。是否有其他方法来实现这一点？？？@sss111，下面是使用IMap上的“spatialfilter”解决问题的方法。SelectFeature（播放器，pFeature）或IMap.FeatureSelection=（ISelection）pFeatureSelect；IMap.SelectFeature（播放器，pFeature）或IMap.FeatureSelection=（ISelection）pfeatSelect；感谢您对社区的贡献。这可能是一个正确的答案，但为您的代码提供额外的解释，以便开发人员能够理解您的推理是非常有用的。这对于可能不熟悉语法的新开发人员尤其有用。此外，它还可以帮助减少后续问题的需要ons。感谢您对社区的贡献。这可能是一个正确的答案，但为您的代码提供额外的解释会很有用，这样开发人员就可以理解您的推理。这对于可能不熟悉语法的新开发人员来说尤其有用。此外，它还可以帮助减少后续问题的需要。