//显示结果集合
public void refeshView(IHit3DSet pHit3Dset)
{
//用tree控件显示查询结果
mTreeView.BeginUpdate();
//清空tree控件的内容
mTreeView.Nodes.Clear();
IHit3D pHit3D;
int i;
//遍历结果集
for (i = 0; i < pHit3Dset.Hits.Count; i++)
{
pHit3D = pHit3Dset.Hits.get_Element(i) as IHit3D;
if (pHit3D.Owner is ILayer)
{
ILayer pLayer = pHit3D.Owner as ILayer;
//将图层的名称和坐标显示在树节点中
TreeNode node = mTreeView.Nodes.Add(pLayer.Name);
node.Nodes.Add("X=" + pHit3D.Point.X.ToString());
node.Nodes.Add("Y=" + pHit3D.Point.Y.ToString());
node.Nodes.Add("Z=" + pHit3D.Point.Z.ToString());
//将该图层中的所有元素显示在该树节点的子节点
if (pHit3D.Object != null)
{
if (pHit3D.Object is IFeature)
{
IFeature pFeature = pHit3D.Object as IFeature;
int j;
//显示Feature中的内容
for (j = 0; j < pFeature.Fields.FieldCount; j++)
{
node.Nodes.Add(pFeature.Fields.get_Field(j).Name + ":" +
pFeature.get_Value(j).ToString());
}
}
}
}
}
mTreeView.EndUpdate();
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
// TODO: Add ToolEditFeatures.OnMouseDown implementation
try
{
ISceneControl pSceneCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as ISceneControl;
if (pSceneCtr != null)
{
IPoint po;
object owner, obj;
pSceneCtr.SceneGraph.Locate(pSceneCtr.SceneViewer, X, Y, esriScenePickMode.esriScenePickGeography, true, out po, out owner, out obj);//po就是得到的点
//方法2
IHit3DSet pHit3dSet = null;
pSceneCtr.SceneGraph.LocateMultiple(pSceneCtr.SceneGraph.ActiveViewer, X, Y, esriScenePickMode.esriScenePickGeography, true, out pHit3dSet);
//po = pHit3D.Point;//po就是得到的点
//如果想得到某图层元素，可以看看下面代码
// int index = 2;
if (pHit3dSet == null)
{
return;
}
pHit3dSet.OnePerLayer();
IHit3D pHit3D = (IHit3D)pHit3dSet.Hits.get_Element(0);
IFeature pFeature = (IFeature)pHit3D.Object;
if (pFeature == null)
{
return;
}
ILayer pLayer = owner as ILayer;
if (pLayer == null)
{
return;
}
if (pLayer.Name != "Crater" && pLayer.Name != "NonCrater")
{
return;
}
IFeatureClass pFeatureClass = ((IFeatureLayer)pLayer).FeatureClass;
pSceneCtr.Scene.ClearSelection();
pSceneCtr.Scene.SelectFeature(pLayer, pFeature);
IActiveView pActiveView = pSceneCtr.Scene as IActiveView;
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pLayer, null);
IMultiPatch pMP = pFeature.Shape as IMultiPatch;
FrmEditFeatures.setXLabel((pMP.Envelope.XMax + pMP.Envelope.XMin) / 2);
FrmEditFeatures.setYLabel((pMP.Envelope.YMax + pMP.Envelope.YMin) / 2);
}
IMapControl2 pMapCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as IMapControl2;
if (pMapCtr != null)
{
IMap pMap = pMapCtr.Map;
IPoint po = pMapCtr.ToMapPoint(X, Y);
ISelectionEnvironment pSelectionEnv = new SelectionEnvironmentClass();
pMap.SelectByShape(po, pSelectionEnv, true);
//for (int i = 0; i < pMap.LayerCount; i++ )
//{
// ILayer pLayer = pMap.get_Layer(i);
// if (pLayer.Name == "Crater")
// {
// pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pLayer, null);
// }
// if (pLayer.Name =="NonCrater")
// {
// pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, pLayer, null);
// }
//}
pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
IEnumFeatureSetup pSelectionsetup = pMap.FeatureSelection as IEnumFeatureSetup;
pSelectionsetup.AllFields = true;//这里是关键
IEnumFeature pFeatureCollection = pSelectionsetup as IEnumFeature;
IFeature pF = pFeatureCollection.Next();
if (pF != null && pF.Shape is IMultiPatch)
{
IMultiPatch pMP = pF.Shape as IMultiPatch;
FrmEditFeatures.setXLabel((pMP.Envelope.XMax + pMP.Envelope.XMin) / 2);
FrmEditFeatures.setYLabel((pMP.Envelope.YMax + pMP.Envelope.YMin) / 2);
}
//ISelection pSelection =pMap.FeatureSelection;
////从Map.FeatureSelection获得ISelection不能读到Feature的其他属性，
////这是因为从axMapControl1.Map.FeatureSelection QI到IEnumFeature 时，
////ArcGIS中FeatureSelection默认的时候只存入Feature 的Shape，而不是整个Feature的字段数据。
////如果要查看其他数据，必须要进行以下转换才可以：
//IEnumFeatureSetup pSelectionsetup = pSelection as IEnumFeatureSetup;
//pSelectionsetup.AllFields = true;//这里是关键
//IEnumFeature pFeatureCollection = pSelectionsetup as IEnumFeature;
//IFeature pF = pFeatureCollection.Next();
//if (pF != null)
//{
// pF.Class
//}
}
}
catch (System.Exception ex)
{
}
}
