private void btnAnalyse_Click(object sender, EventArgs e)
{
try
{
ClearRes();
WaitForm.Start("正在分析...", "请稍后");
if (this._rLine == null)
{
return;
}
List <DF3DFeatureClass> list = DF3DFeatureClassManager.Instance.GetAllFeatureClass();
if (list == null || list.Count == 0)
{
return;
}
IPolyline line = this._rLine.GetFdeGeometry() as IPolyline;
ILine l = this._geoFactory.CreateGeometry(gviGeometryType.gviGeometryLine, gviVertexAttribute.gviVertexAttributeZ) as ILine;
l.StartPoint = line.StartPoint;
l.EndPoint = line.EndPoint;
ISpatialFilter filter = new SpatialFilter();
filter.SpatialRel = gviSpatialRel.gviSpatialRelEnvelope;
filter.GeometryField = "Geometry";
List <InterPt> listInterPts = new List <InterPt>();
foreach (DF3DFeatureClass dffc in list)
{
IFeatureClass fc = dffc.GetFeatureClass();
if (fc == null)
{
continue;
}
IFeatureLayer fl = dffc.GetFeatureLayer();
if (fl != null)
{
if (fl.VisibleMask == gviViewportMask.gviViewNone)
{
continue;
}
}
int indexGeo = fc.GetFields().IndexOf("Geometry");
if (indexGeo == -1)
{
continue;
}
filter.Geometry = l;
IFdeCursor cursor = null;
IRowBuffer row = null;
try
{
cursor = fc.Search(filter, false);
while ((row = cursor.NextRow()) != null)
{
if (!row.IsNull(indexGeo))
{
IGeometry geo = row.GetValue(indexGeo) as IGeometry;
if (geo.GeometryType == gviGeometryType.gviGeometryModelPoint)
{
IModelPoint modelPoint = geo as IModelPoint;
IModel model = (fc.FeatureDataSet as IResourceManager).GetModel(modelPoint.ModelName);
IGeometryConvertor gc = new GeometryConvertor();
IMultiTriMesh triMesh = gc.ModelPointToTriMesh(model, modelPoint, false);
if (triMesh != null)
{
IVector3 v3 = triMesh.LineSegmentIntersect(l);
if (v3 != null)
{
IPoint pttemp = this._geoFactory.CreatePoint(gviVertexAttribute.gviVertexAttributeZ);
pttemp.X = v3.X;
pttemp.Y = v3.Y;
pttemp.Z = v3.Z;
double dis = (pttemp.X - line.StartPoint.X) * (pttemp.X - line.StartPoint.X) +
(pttemp.Y - line.StartPoint.Y) * (pttemp.Y - line.StartPoint.Y) +
(pttemp.Z - line.StartPoint.Z) * (pttemp.Z - line.StartPoint.Z);
InterPt ip = new InterPt();
ip.pt = pttemp;
ip.dis = dis;
listInterPts.Add(ip);
}
}
}
}
}
}
catch (Exception ex)
{
}
finally
{
if (row != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(row);
row = null;
}
if (cursor != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(cursor);
cursor = null;
}
}
}
if (listInterPts.Count > 0)
{
this._rLine.VisibleMask = gviViewportMask.gviViewNone;
listInterPts.Sort(new CmpInterPt());
IPoint pt = listInterPts[0].pt;
IPolyline lineStart = this._geoFactory.CreateGeometry(gviGeometryType.gviGeometryPolyline, gviVertexAttribute.gviVertexAttributeZ) as IPolyline;
lineStart.AppendPoint(line.StartPoint);
lineStart.AppendPoint(pt);
ICurveSymbol csS = new CurveSymbolClass();
csS.Color = 0xff0000ff;
csS.Width = -2;
IRenderPolyline rLineStart = this._3DControl.ObjectManager.CreateRenderPolyline(lineStart, csS, this._3DControl.ProjectTree.RootID);
this._listRes.Add(rLineStart.Guid);
IPolyline lineEnd = this._geoFactory.CreateGeometry(gviGeometryType.gviGeometryPolyline, gviVertexAttribute.gviVertexAttributeZ) as IPolyline;
lineEnd.AppendPoint(line.EndPoint);
lineEnd.AppendPoint(pt);
ICurveSymbol csE = new CurveSymbolClass();
csE.Color = 0xffff0000;
csE.Width = -2;
IRenderPolyline rLineEnd = this._3DControl.ObjectManager.CreateRenderPolyline(lineEnd, csE, this._3DControl.ProjectTree.RootID);
this._listRes.Add(rLineEnd.Guid);
}
else
{
this._rLine.VisibleMask = gviViewportMask.gviViewNone;
ICurveSymbol csS = new CurveSymbolClass();
csS.Color = 0xff0000ff;
csS.Width = -2;
IRenderPolyline rLine = this._3DControl.ObjectManager.CreateRenderPolyline(line, csS, this._3DControl.ProjectTree.RootID);
this._listRes.Add(rLine.Guid);
}
}
catch (Exception ex)
{
}
finally
{
WaitForm.Stop();
}
}
public void SelectFeaturesFromBaseLyr(IPolyline polyLine)
{
btn_analyse.Enabled = false;
btn_createLine.Enabled = false;
this.btnFlyToSourcePoint.Enabled = false;
this.btnFlyToTargetPoint.Enabled = false;
IFdeCursor cursor = null;
try
{
this.dataGridView1.Rows.Clear();
axRenderControl1.FeatureManager.UnhighlightAll();
IRowBuffer row = null;
int index = 0;
List <IRowBuffer> list = new List <IRowBuffer>();
this.Text = "开始粗查询";
foreach (IFeatureClass fc in fcMap.Keys)
{
ISpatialFilter filter = new SpatialFilter();
filter.Geometry = polyline;
filter.SpatialRel = gviSpatialRel.gviSpatialRelEnvelope;
filter.GeometryField = "Geometry";
cursor = fc.Search(filter, false);
while ((row = cursor.NextRow()) != null)
{
list.Add(row);
}
this.Text = "开始细查询";
foreach (IRowBuffer r in list)
{
index++;
int geometryIndex = -1;
geometryIndex = r.FieldIndex("Geometry");
if (geometryIndex != -1)
{
IModelPoint modelPoint = r.GetValue(geometryIndex) as IModelPoint;
IModel model = (fc.FeatureDataSet as IResourceManager).GetModel(modelPoint.ModelName);
IGeometryConvertor gc = new GeometryConvertor();
this.Text = "正在计算第" + index.ToString() + "个IMultiTriMesh是否与线相交";
IMultiTriMesh triMesh = gc.ModelPointToTriMesh(model, modelPoint, false);
if (triMesh != null)
{
ILine l = geoFactory.CreateGeometry(gviGeometryType.gviGeometryLine, gviVertexAttribute.gviVertexAttributeZ) as ILine;
l.StartPoint = polyline.StartPoint;
l.EndPoint = polyline.EndPoint;
IVector3 v3 = triMesh.LineSegmentIntersect(l);
if (v3 != null)
{
string fid = "";
string fName = "";
string groupId = "";
IEnvelope env = null;
int fidPos = r.FieldIndex(fc.FidFieldName);
axRenderControl1.FeatureManager.HighlightFeature(fc, int.Parse(r.GetValue(fidPos).ToString()), System.Drawing.Color.Red);
for (int i = 0; i < r.FieldCount; i++)
{
string fieldName = r.Fields.Get(i).Name;
if (r.Fields.Get(i).Name == "oid")
{
fid = r.GetValue(i).ToString();
}
else if (r.Fields.Get(i).Name == "groupid")
{
groupId = r.GetValue(i).ToString();
}
else if (r.Fields.Get(i).Name == "Name")
{
fName = r.GetValue(i).ToString();
}
else if (r.Fields.Get(i).Name == "Geometry")
{
IGeometry geometry = r.GetValue(i) as IModelPoint;
env = geometry.Envelope;
}
}
RowObject ro = new RowObject()
{
FID = fid, GroupId = groupId, Name = fName, FeatureClass = fc, Envelop = env
};
if (!rowMap.ContainsKey(ro.FID))
{
rowMap.Add(ro.FID, ro);
}
}
}
}
} // end of foreach (IRowBuffer r in list)
} // end of foreach (IFeatureClass fc in fcMap.Keys)
this.Text = "通视分析完成！";
LoadGridView();
}
catch (Exception ex)
{
if (ex.GetType().Name.Equals("UnauthorizedAccessException"))
{
MessageBox.Show("需要标准runtime授权");
}
else
{
MessageBox.Show(ex.Message);
}
}
finally
{
this.btn_analyse.Enabled = true;
this.btn_createLine.Enabled = true;
this.btnFlyToSourcePoint.Enabled = true;
this.btnFlyToTargetPoint.Enabled = true;
if (cursor != null)
{
//Marshal.ReleaseComObject(cursor);
cursor = null;
}
}
}
