protected IPolygon getPolygon(IPoint inPoint)
{
bool found = false;
IRelationalOperator relOp = (IRelationalOperator)inPoint;
IFeature f = null;
IPolygon searchPoly = null;
mLog.Debug("inside getPolygon");
try
{
for (int i = 0; i < this.myPolygons.Count && !found; i++)
{
f = (IFeature)myPolygons[i];
searchPoly = (IPolygon)f.ShapeCopy;
if (relOp.Within(searchPoly))
{
found = true;
}
}
}
catch (System.Exception ex)
{
#if (DEBUG)
System.Windows.Forms.MessageBox.Show(ex.Message);
#endif
eLog.Debug(ex);
}
if (found)
{
return(searchPoly);
}
else
{
return(null);
}
}
protected double getArea(IPoint inPoint)
{
double area = 0;
IPolygon searchPoly = null;
IRelationalOperator relOp = null;
IFeatureCursor searchCurr = null;
IFeature feat = null;
mLog.Debug("inside get area of the home range finder class for point X = " + inPoint.X.ToString() + " and Y = " + inPoint.Y.ToString());
try
{
relOp = (IRelationalOperator)inPoint;
searchCurr = this.myMapManager.SocialMap.mySelf.Search(null, true);
while ((feat = searchCurr.NextFeature()) != null)
{
searchPoly = feat.Shape as IPolygon;
if (relOp.Within(searchPoly))
{
area = this.getArea(searchPoly);
break;
}
}
}
catch (System.Exception ex)
{
eLog.Debug(ex);
}
finally
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(searchPoly);
System.Runtime.InteropServices.Marshal.ReleaseComObject(searchCurr);
}
mLog.Debug("leaving with an area of " + area.ToString());
return(area);
}
protected double getArea(IPoint inPoint)
{
double area = 0;
IPolygon searchPoly = null;
IRelationalOperator relOp = null;
IFeatureCursor searchCurr = null;
fw.writeLine("inside get area of the home range finder class for point X = " + inPoint.X.ToString() + " and Y = " + inPoint.Y.ToString());
try
{
relOp = (IRelationalOperator)inPoint;
searchCurr = myAvailableAreas.Search(null, true);
IFeature feat = searchCurr.NextFeature();
while (feat != null)
{
searchPoly = feat.Shape as IPolygon;
if (relOp.Within(searchPoly))
{
area = this.getArea(searchPoly);
break;
}
}
}
catch (System.Exception ex)
{
FileWriter.FileWriter.WriteErrorFile(ex);
}
finally
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(searchPoly);
System.Runtime.InteropServices.Marshal.ReleaseComObject(searchCurr);
}
fw.writeLine("leaving with an area of " + area.ToString());
return(area);
}
private void AddVertexNode(IPoint pPnt)
{
try
{
IFeatureLayer pFeaturelayer = m_EngineEditLayers.TargetLayer;
IActiveView pActiveView = m_activeView;
IPoint pPoint = pPnt;
if (pFeaturelayer.FeatureClass == null)
{
return;
}
//如果不是面状地物则退出
if (pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryEnvelope &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryPolygon &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryLine &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryPolyline)
{
return;
}
IGeometry pGeo = null;
IFeature pSelFeature = null;
pSelFeature = EditVertexClass.GetSelectedFeature(pFeaturelayer);
//是否有选中的几何体
if (pSelFeature == null)
{
return;
}
//解决不带Z值的要素的编辑和Z值为空的要素的编辑问题
IZAware pZAware = pPoint as IZAware;
pZAware.ZAware = true;
pPoint.Z = 0;
bool pInLine = false;
ITopologicalOperator pTopoOpt = default(ITopologicalOperator);
IPolyline pBoundaryLine = default(IPolyline);
//最小的距离
double pMindis = 0;
IProximityOperator pProxOpt = default(IProximityOperator);
//得到多边形的边界
if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryEnvelope)
{
//获取边界线
pBoundaryLine = EditVertexClass.GetBoundary(pFeaturelayer);
}
else if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryLine)
{
pBoundaryLine = pSelFeature.ShapeCopy as IPolyline;
}
pTopoOpt = pPoint as ITopologicalOperator;
IRelationalOperator pRelationalOperator = default(IRelationalOperator);
pRelationalOperator = pPoint as IRelationalOperator;
//判断点是否在边界上
pInLine = pRelationalOperator.Within(pBoundaryLine);
//如果不在边界上，判断是否小于容忍距离,如果大于容忍距离则退出程序
if (pInLine == false)
{
pProxOpt = pPoint as IProximityOperator;
pMindis = pProxOpt.ReturnDistance(pBoundaryLine);
if (pMindis > THE_POINT_TO_POINT_TOLERANCE)
{
return;
}
}
//判断是否增加的点刚好为节点
IPointCollection pPolylinePointCol = pBoundaryLine as IPointCollection;
IHitTest pHitTest = default(IHitTest);
double pHitDis = 0;
int pSegIndex = 0;
int pVerIndex = 0;
IPoint pHitPoint = null;
bool bRightSide = true;
pHitTest = pBoundaryLine as IHitTest;
//增加的点为已有的节点则退出程序
if (pHitTest.HitTest(pPoint, THE_POINT_TO_POINT_TOLERANCE * 10,
esriGeometryHitPartType.esriGeometryPartVertex, pHitPoint,
ref pHitDis, ref pSegIndex, ref pVerIndex, ref bRightSide) == true)
{
if (pHitDis < THE_POINT_TO_POINT_TOLERANCE)
{
return;
}
}
EditVertexClass.pHitPnt = pHitPoint;
//为多边形增加节点
ISegmentCollection pSegmentCollection = pBoundaryLine as ISegmentCollection;
IPolyline pSegPolyline = null;
int pPointIndex = 0;
ILine pLine = default(ILine);
double pDis1 = 0;
double pDis2 = 0;
IPoint pVerTex = default(IPoint);
pMindis = 100;
pProxOpt = pPoint as IProximityOperator;
for (int i = 0; i <= pSegmentCollection.SegmentCount - 1; i++)
{
//判断选中点是否在这个Segment上
pLine = pSegmentCollection.get_Segment(i) as ILine;
pDis1 = pProxOpt.ReturnDistance(pLine.FromPoint);
pDis2 = pProxOpt.ReturnDistance(pLine.ToPoint);
if (Math.Abs(pDis1 + pDis2 - pLine.Length) <= pMindis)
{
pMindis = Math.Abs(pDis1 + pDis2 - pLine.Length);
pVerTex = pLine.ToPoint;
}
}
//获取选中的几何特征
pGeo = pSelFeature.Shape;
//得到索引
pPointIndex = EditVertexClass.GetVertexIndex(pVerTex, pGeo);
//如果是首点，则设置为最后一个点
if (pPointIndex == 0)
{
pPointIndex = pSegmentCollection.SegmentCount;
}
IPointCollection pPolygonPointCol = null;
pPolygonPointCol = pSelFeature.ShapeCopy as IPointCollection;
pPolygonPointCol.InsertPoints(pPointIndex, 1, ref pPoint);
m_EngineEditor.StartOperation();
//拓扑操作
IPolygon pPolygon = null;
IPolyline pPlyline = null;
if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryEnvelope)
{
pPolygon = pPolygonPointCol as IPolygon;
pPolygon.Close();
pTopoOpt = pPolygon as ITopologicalOperator;
pTopoOpt.Simplify();
pSelFeature.Shape = pPolygon;
pSelFeature.Store();
}
else if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryLine)
{
pPlyline = pPolygonPointCol as IPolyline;
pTopoOpt = pPlyline as ITopologicalOperator;
pTopoOpt.Simplify();
pSelFeature.Shape = pPlyline;
pSelFeature.Store();
}
//停止编辑
m_EngineEditor.StopOperation("AddVertexTool");
//显示顶点
EditVertexClass.ShowAllVertex(pFeaturelayer);
}
catch (Exception ex)
{
}
}
public bool HitTestSelectionElement(IActiveView pActiveView, long x, long y, bool bMapUnit)
{
try
{
if (pActiveView != null)
{
IGraphicsContainerSelect select = pActiveView as IGraphicsContainerSelect;
if (select.ElementSelectionCount <= 0)
{
return(false);
}
IPoint point = null;
if (bMapUnit)
{
point = new PointClass {
X = x,
Y = y
};
}
else
{
point = pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint((int)x, (int)y);
}
IEnvelope bounds = new EnvelopeClass();
IBoundsProperties properties = null;
IGeometry other = null;
IRelationalOperator @operator = point as IRelationalOperator;
IEnumElement selectedElements = null;
selectedElements = select.SelectedElements;
if (selectedElements == null)
{
return(false);
}
IElement element2 = null;
selectedElements.Reset();
for (element2 = selectedElements.Next(); element2 != null; element2 = selectedElements.Next())
{
if (!element2.Locked)
{
properties = element2 as IBoundsProperties;
if (properties.FixedSize)
{
element2.QueryBounds(pActiveView.ScreenDisplay, bounds);
}
else
{
bounds = element2.Geometry.Envelope;
}
other = bounds;
if (@operator.Within(other))
{
return(true);
}
}
}
}
return(false);
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "FunFactory.ElementFun", "HitTestSelectionElement", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
return(false);
}
}
/// <summary>
/// 根据查询图形在目标要素集中查找图形相同的要素
/// 返回查询到的第一个要素id
/// </summary>
/// <param name="queryGeo">查询图形</param>
/// <param name="targetClass">目标要素集</param>
/// <param name="resultOIds">查询结果oid列表</param>
/// <returns>查询到的</returns>
public IList <int> QuerySameGeoFetaures(IGeometry queryGeo, IFeatureClass targetClass, string whereclause = null)
{
IList <int> result = new List <int>();
if (queryGeo == null || targetClass == null)
{
return(result);
}
IPoint queryPoint = null;
try
{
ISpatialFilter spatialFilter = new SpatialFilter()
{
GeometryField = targetClass.ShapeFieldName,
SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects,
Geometry = queryPoint ?? queryGeo
};
if (!String.IsNullOrEmpty(whereclause))
{
spatialFilter.WhereClause = whereclause;
}
if (queryGeo.GeometryType == esriGeometryType.esriGeometryPoint)
{
queryPoint = queryGeo as IPoint;
}
else if (queryGeo.GeometryType == esriGeometryType.esriGeometryPolyline)
{
queryPoint = (queryGeo as IPolyline).FromPoint;
}
else if (queryGeo.GeometryType == esriGeometryType.esriGeometryPolygon)
{
queryPoint = (queryGeo as IPolygon).FromPoint;
}
//进行空间查询
using (ComReleaser comreleaser = new ComReleaser())
{
IRelationalOperator relationalOperator = queryGeo as IRelationalOperator;
IFeatureCursor featureCursor = targetClass.Search(spatialFilter, true);
IFeature target = featureCursor.NextFeature();
comreleaser.ManageLifetime(featureCursor);
comreleaser.ManageLifetime(target);
while (target != null && target.Shape != null)
{
if (relationalOperator != null)
{
//既包含又在内，说明完全相同
if (relationalOperator.Contains(target.Shape) && relationalOperator.Within(target.Shape))
{
result.Add(target.OID);
}
}
target = featureCursor.NextFeature();
}
featureCursor = null;
}
}
catch (Exception ex)
{
ErrorMessage = ex.ToString();
}
return(result);
}