public override void OnMouseMove(int Button, int shift, int X, int Y)
{
//Determine tangent to last segment on edit sketch
//Set as angle constraint +90
ISegmentCollection pSc = m_EdSketch.Geometry as ISegmentCollection;
if (pSc.SegmentCount > 0)
{
ICurve3 pCurve;
if (m_EdSketch.GeometryType == esriGeometryType.esriGeometryPolygon)
{
pCurve = pSc.get_Segment(pSc.SegmentCount - 2) as ICurve3;
}
else
{
pCurve = pSc.get_Segment(pSc.SegmentCount - 1) as ICurve3;
}
ILine pLine = new Line();
pCurve.QueryTangent(esriSegmentExtension.esriExtendTangentAtTo, 1, true, 10, pLine);
base.AngleConstraint = pLine.Angle + (90 * Math.PI / 180);
base.Constraint = esriSketchConstraint.esriConstraintAngle;
}
base.OnMouseMove(Button, shift, X, Y);
}
//根据线的方向获取其更新的位置
private void GetFromPointMovepointChangeLocation(IPolyline line, double distance, ref IPoint point, ref IPolyline retureline)
{
try
{
IPolyline[] pLines = new IPolyline[2];
IPolyline pSplitLine = new PolylineClass();
pSplitLine = line;
IPolyline StarttoPointLine = new PolylineClass();
IPolyline EndtoPointLine = new PolylineClass();
bool splithappened;
int partindex, segmentindex;
object pObject = Type.Missing;
pSplitLine.SplitAtDistance(distance, false, false, out splithappened, out partindex, out segmentindex);
ISegmentCollection lineSegCol = pSplitLine as ISegmentCollection;
ISegmentCollection startSegCol = StarttoPointLine as ISegmentCollection;
ISegmentCollection endSegCol = EndtoPointLine as ISegmentCollection;
for (int i = 0; i < segmentindex; i++)
{
startSegCol.AddSegment(lineSegCol.get_Segment(i), ref pObject, ref pObject);
}
for (int j = segmentindex; j < lineSegCol.SegmentCount; j++)
{
endSegCol.AddSegment(lineSegCol.get_Segment(j), ref pObject, ref pObject);
}
pLines[0] = endSegCol as IPolyline;
pLines[1] = startSegCol as IPolyline;
point = new PointClass();
point = pLines[0].FromPoint;
retureline = pLines[0];
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "/n" + ex.ToString(), "异常");
}
}
//根据第一应急处置空间位置点，将即将污染的河流切割成两段
public IPolyline GetPointSplitAtPoint(IPolyline InputLine, IPoint point)
{
try
{
IPolyline[] pLines = new IPolyline[2];
IPolyline pSplitLine = new PolylineClass();
pSplitLine = InputLine;
IPolyline StarttoPointLine = new PolylineClass();
IPolyline EndtoPointLine = new PolylineClass();
bool projectOnto = true, createPart = false;
bool SplitHappened;
int partindex, segmentindex;
object pObject = Type.Missing;
pSplitLine.SplitAtPoint(point, projectOnto, createPart, out SplitHappened, out partindex, out segmentindex);
ISegmentCollection lineSegCol = pSplitLine as ISegmentCollection;
ISegmentCollection startSegCol = StarttoPointLine as ISegmentCollection;
ISegmentCollection endSegCol = EndtoPointLine as ISegmentCollection;
for (int i = 0; i < segmentindex; i++)
{
startSegCol.AddSegment(lineSegCol.get_Segment(i), ref pObject, ref pObject);
}
for (int j = segmentindex; j < lineSegCol.SegmentCount; j++)
{
endSegCol.AddSegment(lineSegCol.get_Segment(j), ref pObject, ref pObject);
}
pLines[0] = endSegCol as IPolyline;
pLines[1] = startSegCol as IPolyline;
return(pLines[0]);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "\n" + ex.ToString(), "异常");
return(null);
}
}
private esriFlowDirection method_7(IGeometry geometry)
{
ISegmentCollection segmentCollection = (ISegmentCollection)geometry;
ISegmentZ segmentZ = (ISegmentZ)segmentCollection.get_Segment(0);
ISegmentZ segmentZ2 = (ISegmentZ)segmentCollection.get_Segment(-1);
double num;
double num2;
segmentZ.GetZs(out num, out num2);
double num3;
segmentZ2.GetZs(out num2, out num3);
esriFlowDirection result;
if (num > num3)
{
result = (esriFlowDirection)1;
}
else if (num < num3)
{
result = (esriFlowDirection)2;
}
else
{
result = (esriFlowDirection)3;
}
return(result);
}
public override void OnMouseUp(int Button, int Shift, int X, int Y)
{
if (Button != 1 || m_pFeature == null || m_pVertexFeed == null || m_HitSegmentIndex == -1)
{
return;
}
IPoint pPnt = m_MapControl.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
//如果开启捕捉则以捕捉到的点为准
if (MoData.v_bSnapStart && m_pSnapPoint != null)
{
pPnt = m_pSnapPoint;
}
ISegmentCollection pSegmentCollection = m_pFeature.Shape as ISegmentCollection;
//检查是否点击第一点
if (m_HitSegmentIndex == 0)
{
//如果是第一点且是Polygon，更新最后一段
if (m_pFeature.Shape is IPolygon)
{
pPnt.Z = pSegmentCollection.get_Segment(pSegmentCollection.SegmentCount - 1).ToPoint.Z;
pSegmentCollection.get_Segment(pSegmentCollection.SegmentCount - 1).ToPoint = pPnt;
}
}
else
{
//如果不是第一点，更新上一段(FromPoint as anchor)
pPnt.Z = pSegmentCollection.get_Segment(m_HitSegmentIndex - 1).ToPoint.Z;
pSegmentCollection.get_Segment(m_HitSegmentIndex - 1).ToPoint = pPnt;
}
//检查是否点击最后一个节点
if (m_HitSegmentIndex == pSegmentCollection.SegmentCount)
{
//如果是点击最后一个节点,并且是polygon，更新第一段
if (m_pFeature.Shape is IPolygon)
{
pPnt.Z = pSegmentCollection.get_Segment(0).FromPoint.Z;
pSegmentCollection.get_Segment(0).FromPoint = pPnt;
}
}
else
{
//如果不是最后一个节点，更新下一段(ToPoint as anchor)
pPnt.Z = pSegmentCollection.get_Segment(m_HitSegmentIndex).FromPoint.Z;
pSegmentCollection.get_Segment(m_HitSegmentIndex).FromPoint = pPnt;
}
StoreFeature(m_pFeature, pSegmentCollection, MoData.v_CurWorkspaceEdit);
m_MapControl.ActiveView.Refresh();
m_pVertexFeed = null;
m_bMouseDown = false;
m_HitSegmentIndex = 0;
}
private IPolygon polylinetoPolygon(IPolyline pPolyline)
{
IPointCollection pPtC;
ESRI.ArcGIS.Geometry.IPoint pPt0, pPtn;
ESRI.ArcGIS.Geometry.ILine pSeg = new LineClass();
IPolygon polygon = new PolygonClass();
ISegmentCollection segmentCollection = (ISegmentCollection)pPolyline;
int segmentCount = segmentCollection.SegmentCount;
ISegmentCollection segmentCollection2 = (ISegmentCollection)polygon;
object value = Missing.Value;
object value2 = Missing.Value;
for (int i = 0; i < segmentCount; i++)
{
segmentCollection2.AddSegment(segmentCollection.get_Segment(i), ref value, ref value2);
}
if (!pPolyline.IsClosed)
{
pPtC = pPolyline as IPointCollection;
pPt0 = pPtC.get_Point(0);
polygon.ToPoint = pPt0;
//pPtn = pPtC.get_Point(pPtC.PointCount - 1);
//pSeg.PutCoords(pPtn, pPt0);
//segmentCollection2.AddSegment((ISegment)pSeg, ref value, ref value2);
}
polygon.SimplifyPreserveFromTo();
return(polygon);
}
public static GeoAPI.Geometries.ILinearRing ConvertTo(ESRI.ArcGIS.Geometry.IRing ring)
{
ESRI.ArcGIS.Geometry.IPoint fromToPoint = ring.FromPoint;
List <GeoAPI.Geometries.ICoordinate> list = new List <GeoAPI.Geometries.ICoordinate>();
list.Add(ConvertTo(fromToPoint));
ISegmentCollection segmentCollection = ring as ISegmentCollection;
if (segmentCollection != null)
{
int count = segmentCollection.SegmentCount;
for (int i = 0; i < count; i++)
{
ISegment segment = segmentCollection.get_Segment(i);
if (!(segment is ILine))
{
throw new ApplicationException("Curves are not supported.");
}
list.Add(ConvertTo(segment.ToPoint));
}
}
else
{
throw new ApplicationException("No segments found in the ring geometry.");
}
list.Add(ConvertTo(fromToPoint));
list.Reverse();
return(new GisSharpBlog.NetTopologySuite.Geometries.LinearRing(list.ToArray()));
}
/// <summary>
/// 角度同步,点与线的角度同步
/// </summary>
/// <param name="pPolyline">线</param>
/// <param name="pPoint">线附近的点(许可的范围内)</param>
/// <param name="dAngle">返回点符号的角度</param>
/// <param name="pRetPoint">返回的在线上的点的位置</param>
/// <returns>是否可以同步角度(如果距离过大,无法执行角度同步)</returns>
public static bool SynchronizeAngle(IPolyline pPolyline, IPoint pPoint, ref double dAngle, ref IPoint pRetPoint)
{
double dRadius = 10;
IPoint pHitPoint = new PointClass();
IHitTest pHitTest = pPolyline as IHitTest;
double hitDist = 0.0;
int hitPartIndex = 0;
int hitSegmentIndex = 0;
bool bRightSide = false;
bool bPointOnLine = pHitTest.HitTest(pPoint, dRadius, esriGeometryHitPartType.esriGeometryPartBoundary, pHitPoint, ref hitDist, ref hitPartIndex, ref hitSegmentIndex, ref bRightSide);
if (bPointOnLine)
{
if (distance(pHitPoint, pPoint) < 0.0001)
{
pRetPoint = null;
}
else
{
pRetPoint = pHitPoint;
}
ISegmentCollection pSegment = pPolyline as ISegmentCollection;
ILine pLine = pSegment.get_Segment(hitSegmentIndex) as ILine;
dAngle = pLine.Angle;
return(true);
}
return(false);
}
/// <summary>Gets the end point of a turn edge</summary>
/// <remarks>
/// - The Via node of a turn is assumed to be at the From or To point of the edge
/// </remarks>
private static IPoint GetTurnEndpoint(IPolyline line, IPoint ptVia, out bool edgeEndAtToPoint, out double position)
{
IPoint point = null;
edgeEndAtToPoint = false;
position = 0.0;
if ((ptVia.X == line.FromPoint.X) && (ptVia.Y == line.FromPoint.Y))
{
point = ((IPointCollection)line).get_Point(1);
ISegment segment = ((ISegmentCollection)line).get_Segment(0);
position = segment.Length / line.Length;
}
else
{
edgeEndAtToPoint = true;
IPointCollection pc = (IPointCollection)line;
point = pc.get_Point(pc.PointCount - 2);
ISegmentCollection sc = line as ISegmentCollection;
ISegment segment = sc.get_Segment(sc.SegmentCount - 1);
position = (line.Length - segment.Length) / line.Length;
}
return(point);
}
/// <summary>
/// 获取线起点
/// </summary>
/// <param name="pLine"></param>
/// <returns></returns>
public static IPoint GetStartPoint(IPolyline pLine)
{
IPoint pStartPoint = null;
try
{
if (pLine == null)
{
return(pStartPoint);
}
ISegmentCollection pLines = pLine as ISegmentCollection;
if (pLines.SegmentCount == 0)
{
return(pStartPoint);
}
ILine pStarLine = pLines.get_Segment(0) as ILine;
if (pStarLine == null)
{
return(pStartPoint);
}
pStartPoint = pStarLine.FromPoint;
return(pStartPoint);
}
catch (Exception ex)
{
return(pStartPoint);
}
}
private double GetAngle(ICurve curvePath)
{
IPolyline pPoly = (IPolyline)curvePath;
ISegmentCollection pSG = pPoly as ISegmentCollection;
ILine pLine = pSG.get_Segment(0) as ILine;
return(Math.Round((180 * pLine.Angle) / Math.PI, 3));
}
public override void OnClick()
{
if (SketchShareEx.m_pAnchorPoint != null)
{
IPoint point = new Point();
point.PutCoords(SketchShareEx.m_pAnchorPoint.X, SketchShareEx.m_pAnchorPoint.Y);
point.SpatialReference = _context.FocusMap.SpatialReference;
double snapTolerance = _context.Config.EngineSnapEnvironment.SnapTolerance;
IFeature feature;
Yutai.ArcGIS.Common.Editor.Editor.GetClosesFeature(_context.FocusMap, point, snapTolerance, out feature);
if (feature != null)
{
IGeometry shapeCopy = feature.ShapeCopy;
double num = 0.0;
int index = 0;
int i = 0;
bool flag = false;
IPoint point2 = new Point();
point2.PutCoords(0.0, 0.0);
if (shapeCopy.GeometryType == esriGeometryType.esriGeometryPolygon ||
shapeCopy.GeometryType == esriGeometryType.esriGeometryPolyline)
{
if ((shapeCopy as IHitTest).HitTest(point, 4.0, esriGeometryHitPartType.esriGeometryPartBoundary,
point2, ref num, ref index, ref i, ref flag))
{
ISegmentCollection segmentCollection =
(shapeCopy as IGeometryCollection).get_Geometry(index) as ISegmentCollection;
ISegment segment = segmentCollection.get_Segment(i);
ILine line = new Line();
line.SpatialReference = _context.FocusMap.SpatialReference;
line.PutCoords(point2, segment.FromPoint);
double length = line.Length;
line.PutCoords(point2, segment.ToPoint);
double length2 = line.Length;
if (length < length2)
{
SketchShareEx.m_pAnchorPoint.PutCoords(segment.FromPoint.X, segment.FromPoint.Y);
}
else
{
SketchShareEx.m_pAnchorPoint.PutCoords(segment.ToPoint.X, segment.ToPoint.Y);
}
SketchShareEx.SketchMouseDown(SketchShareEx.m_pAnchorPoint, _context.ActiveView,
Yutai.ArcGIS.Common.Editor.Editor.CurrentEditTemplate.FeatureLayer);
}
}
else if ((shapeCopy.GeometryType == esriGeometryType.esriGeometryMultipoint ||
shapeCopy.GeometryType == esriGeometryType.esriGeometryPoint) &&
(shapeCopy as IHitTest).HitTest(point, 4.0, esriGeometryHitPartType.esriGeometryPartVertex,
point2, ref num, ref index, ref i, ref flag))
{
SketchShareEx.m_pAnchorPoint.PutCoords(point2.X, point2.Y);
SketchShareEx.SketchMouseDown(SketchShareEx.m_pAnchorPoint, _context.ActiveView,
Yutai.ArcGIS.Common.Editor.Editor.CurrentEditTemplate.FeatureLayer);
}
}
}
}
/// <summary>
/// 算出量测计算结果，并在FormDis上进行显示
/// </summary>
/// <param name="ipGeo">人机交互生成的实体</param>
public void WriteLabelText(IGeometry ipGeo)
{
switch (m_MeasureType)
{
case MeasureType.Length: //量测长度
{
string strUnit = " " + (this.m_Tool as ToolMeasureLength).m_hookHelper.FocusMap.MapUnits.ToString().Substring(4);
//this.m_LabelMeasureType.Text = "Line Measurement";
this.m_LabelMeasureType.Text = "长度量测";
this.m_labelArea.Visible = true;
if (ipGeo != null)
{
IGeometryCollection ipGeoCol = ipGeo as IGeometryCollection;
ISegmentCollection ipSegmentColl = ipGeoCol.get_Geometry(0) as ISegmentCollection;
ILine ipLine = ipSegmentColl.get_Segment(ipSegmentColl.SegmentCount - 1) as ILine;
//this.m_labelSegment.Text = "段长度:" + ipLine.Length.ToString() + strUnit;
//this.m_labelLength.Text = "长度:" + (ipGeoCol.get_Geometry(0) as ICurve).Length.ToString() + "米";
this.m_labelArea.Text = "长度:" + (ipGeoCol.get_Geometry(0) as ICurve).Length.ToString("f3") + "米";
}
else
{
this.m_labelArea.Text = "长度:" + "0" + "米";
//this.m_labelLength.Text = "总长度:" + "0" + strUnit;
}
}
break;
case MeasureType.Area: //量测面积
{
string strUnit = " " + (this.m_Tool as ToolMeasureArea).m_hookHelper.FocusMap.MapUnits.ToString().Substring(4);
//this.m_LabelMeasureType.Text = "Area Measurement";
this.m_LabelMeasureType.Text = "面积量测";
this.m_labelArea.Visible = true;
if (ipGeo != null)
{
IGeometryCollection ipGeoCol = ipGeo as IGeometryCollection;
ISegmentCollection ipSegmentColl = ipGeoCol.get_Geometry(0) as ISegmentCollection;
ILine ipLine = ipSegmentColl.get_Segment(ipSegmentColl.SegmentCount - 1) as ILine;
//this.m_labelSegment.Text = "Segment:" + ipLine.Length.ToString() + strUnit;
//this.m_labelLength.Text = "Perimeter:" + (ipGeoCol.get_Geometry(0) as IRing).Length.ToString() + strUnit;
//this.m_labelSegment.Text = "段长度:" + ipLine.Length.ToString() + strUnit;
//this.m_labelLength.Text = "周长:" + (ipGeoCol.get_Geometry(0) as IRing).Length.ToString() + strUnit;
IClone ipClone = ipGeo as IClone;
IGeometry ipGeo1 = ipClone.Clone() as IGeometry;
ITopologicalOperator ipTopo = ipGeo1 as ITopologicalOperator;
ipTopo.Simplify();
this.m_labelArea.Text = "面积:" + ((ipGeo1 as IPolygon) as IArea).Area.ToString(".###") + "平方米";
}
else
{
this.m_labelArea.Text = "面积:" + "0" + "平方米";
}
}
break;
}
}
private static bool IsAngle180(IPolyline pPolyLine, ISegment pSegment)
{
IRelationalOperator pRelOperator;
ISegmentCollection pSegC = pPolyLine as ISegmentCollection;
ISegment pSeg, pSegStart, pSegEnd;
pSegStart = pSegC.get_Segment(0);
pSegEnd = pSegC.get_Segment(pSegC.SegmentCount - 1);
ISegmentCollection pPolyStart = new PolylineClass();
ISegmentCollection pPolyEnd = new PolylineClass();
ISegmentCollection pPolyL = new PolylineClass();
object missing = Type.Missing;
pPolyL.AddSegment(pSegment, ref missing, ref missing);
pPolyStart.AddSegment(pSegStart, ref missing, ref missing);
pPolyEnd.AddSegment(pSegEnd, ref missing, ref missing);
pRelOperator = pPolyL as IRelationalOperator;
if (pRelOperator.Touches(pPolyEnd as IGeometry))
{
pSeg = pSegEnd;
}
else if (pRelOperator.Touches(pPolyStart as IGeometry))
{
pSeg = pSegStart;
}
else
{
return(false);
}
double k1, k2, k;
k1 = Math.Abs((pSeg.FromPoint.Y - pSeg.ToPoint.Y) / (pSeg.FromPoint.X - pSeg.ToPoint.X));
k2 = Math.Abs((pSegment.FromPoint.Y - pSegment.ToPoint.Y) / (pSegment.FromPoint.X - pSegment.ToPoint.X));
k = k1 / k2;
if (k > 0.8 && k < 1.2)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 将构面的环分解成线段集合
/// </summary>
/// <param name="pRing">构面的环对象IRing</param>
/// <param name="strFeatureCode">线的要素代码</param>
/// <param name="strRepresentation">图形表现编码</param>
/// <param name="nEntityID">面实体索引</param>
/// <returns>VCT线段对象集合</returns>
private List<LineNodeEx> GetLineByRing(IRing pRing,string strFeatureCode,string strRepresentation,int nEntityID)
{
try
{
List<LineNodeEx> pListLine = new List<LineNodeEx>();
///获取每个环中的线段集合
ISegmentCollection pExRingSegmentCollection = pRing as ISegmentCollection;
///处理集合中的各个线段
for (int i = 0; i < pExRingSegmentCollection.SegmentCount; i++)
{
ISegment pSegment = pExRingSegmentCollection.get_Segment(i);
LineNodeEx pLineNodeEx = new LineNodeEx();//构造VCT线段对象
pLineNodeEx.SegmentNodes = new SegmentNodes();//构造线段对应的点集合
//pLineNodeEx.IsReverse = bReverse;//设置方向
pLineNodeEx.FeatureCode = strFeatureCode;//设置要素代码
pLineNodeEx.Representation = strRepresentation;
pLineNodeEx.PolygonID = nEntityID;///所属面的标识码
BrokenLineNode pBrokenLinNode = new BrokenLineNode();//构造折线
pBrokenLinNode.PointInfoNodes = new PointInfoNodes();
ILine pLine = pSegment as ILine;
if (pLine != null)
{
pBrokenLinNode.PointInfoNodes.Add(new PointInfoNode(pLine.FromPoint.X, pLine.FromPoint.Y));
pBrokenLinNode.PointInfoNodes.Add(new PointInfoNode(pLine.ToPoint.X, pLine.ToPoint.Y));
}
//////如果是反向
////if (bReverse)
////{
//// PointInfoNodes tempPointInfoNodes = new PointInfoNodes();
//// foreach (PointInfoNode item in pBrokenLinNode.PointInfoNodes)
//// {
//// tempPointInfoNodes.Add(item);
//// }
//// pBrokenLinNode.PointInfoNodes = tempPointInfoNodes;
////}
pLineNodeEx.SegmentNodes.Add(pBrokenLinNode);
pListLine.Add(pLineNodeEx);
}
return pListLine;
}
catch(Exception ex)
{
LogAPI.WriteErrorLog(ex);
return null;
}
}
private static IEnumerable <ISegment> GetSegments(
[NotNull] ISegmentCollection segments)
{
int segmentCount = segments.SegmentCount;
for (int i = 0; i < segmentCount; i++)
{
yield return(segments.get_Segment(i));
}
}
private static IGeometry ProcessPoXian(IGeometry Merge)
{
IPolyline pPolyLine1 = new PolylineClass();
ISegmentCollection pPolyLine2 = new PolylineClass();
ISegment pSegment;
ISegmentCollection segmentCollection = Merge as ISegmentCollection;
IGeometryCollection pPolyLine = new PolylineClass();
IRelationalOperator pRelOperator;
object missing = Type.Missing;
string mergedID = ",";
for (int i = 0; i < segmentCollection.SegmentCount; i++)
{
if (mergedID.IndexOf("," + i.ToString() + ",") >= 0)
{
continue;
}
pPolyLine1 = new PolylineClass();
(pPolyLine1 as ISegmentCollection).AddSegment(segmentCollection.get_Segment(i), ref missing, ref missing);
pRelOperator = pPolyLine1 as IRelationalOperator;
for (int j = i + 1; j < segmentCollection.SegmentCount; j++)
{
if (mergedID.IndexOf("," + j.ToString() + ",") < 0)
{
pSegment = segmentCollection.get_Segment(j);
pPolyLine2.AddSegment(pSegment, ref missing, ref missing);
if (pRelOperator.Touches(pPolyLine2 as IGeometry) && IsAngle180(pPolyLine1, pSegment))
{
(pPolyLine1 as ISegmentCollection).AddSegment(pSegment, ref missing, ref missing);
mergedID = mergedID + j.ToString() + ",";
}
}
}
(pPolyLine1 as ITopologicalOperator).Simplify();
(pPolyLine1 as IPolycurve).Generalize(0.02);
pPolyLine.AddGeometryCollection(pPolyLine1 as IGeometryCollection);
}
return(pPolyLine as IGeometry);
}
/// <summary>
/// 获取Polyline之间的夹角(角度)
/// </summary>
/// <param name="id1">Base Polyline的OID</param>
/// <param name="id2">待比较Polyline的OID</param>
/// <param name="featureClass">要素类</param>
private double GetPolylineAngle(int id1, int id2, IFeatureClass featureClass)
{
Posi IItoI = GetRel(id1, id2, featureClass);
Posi ItoII = GetRel(id2, id1, featureClass);
double[] v1 = null;
double[] v2 = null;
ISegmentCollection sc1 = featureClass.GetFeature(id1).ShapeCopy as ISegmentCollection;
ISegmentCollection sc2 = featureClass.GetFeature(id2).ShapeCopy as ISegmentCollection;
if (IItoI == Posi.FROM)
{
ISegment seg = sc1.get_Segment(0);
v1 = new double[2] {
seg.ToPoint.X - seg.FromPoint.X, seg.ToPoint.Y - seg.FromPoint.Y
};
}
else
{
ISegment seg = sc1.get_Segment(sc1.SegmentCount - 1);
v1 = new double[2] {
seg.FromPoint.X - seg.ToPoint.X, seg.FromPoint.Y - seg.ToPoint.Y
};
}
if (ItoII == Posi.FROM)
{
ISegment seg = sc2.get_Segment(0);
v2 = new double[2] {
seg.ToPoint.X - seg.FromPoint.X, seg.ToPoint.Y - seg.FromPoint.Y
};
}
else
{
ISegment seg = sc2.get_Segment(sc2.SegmentCount - 1);
v2 = new double[2] {
seg.FromPoint.X - seg.ToPoint.X, seg.FromPoint.Y - seg.ToPoint.Y
};
}
return(getVetorAngle(v1, v2));
}
private void OnSketchFinished()
{
//Use the geometry from the sketch and make a narrow buffer to search for fabric lines contained within the buffer
IBufferConstruction pBuffConst = new BufferConstruction();
IGeometry pGeom = pBuffConst.Buffer(m_edSketch.Geometry, 0.1);
ISpatialFilter pSpatFilter = new SpatialFilter();
pSpatFilter.Geometry = pGeom;
pSpatFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
//set up for reporting information about the lines
string sReportString = "";
int iTotalLineCount = 0;
int iCurveCount = 0;
int iMultiSegmentCount = 0;
//Create a feature cursor to query the fabric lines table
IFeatureCursor pFeatCurs = m_pFabricLines.Search(pSpatFilter, false);
IFeature pFeat = pFeatCurs.NextFeature();
while (pFeat != null)
{
//loop through the found lines
//count all the lines
iTotalLineCount++;
ISegmentCollection pSegColl = (ISegmentCollection)pFeat.Shape;
if (pSegColl.SegmentCount > 1) //count lines that have more than 1 segment
{
iMultiSegmentCount++;
}
else
{
if (pSegColl.get_Segment(0) is ICircularArc)
{
iCurveCount++; //count lines that have a single circular arc geometry segment
}
}
Marshal.ReleaseComObject(pFeat);
pFeat = pFeatCurs.NextFeature();
}
Marshal.ReleaseComObject(pFeatCurs);
//report the results
sReportString += "\nTotal parcel lines: " + iTotalLineCount.ToString();
sReportString += "\nCurve parcel lines: " + iCurveCount.ToString();
sReportString += "\nMulti segment parcel lines: " + iMultiSegmentCount.ToString();
MessageBox.Show(sReportString, "Sample: Trace Report");
}
private static IPolyline SegmentCollectionToPolyline(ISegmentCollection segmentCollection)
{
var polyline = (IPolyline) new PolylineClass();
var geomcoll = (IGeometryCollection)polyline;
var pathcoll = (ISegmentCollection) new PathClass();
for (int i = 0; i < segmentCollection.SegmentCount; i++)
{
var segment = segmentCollection.get_Segment(i);
pathcoll.AddSegment(segment);
}
geomcoll.AddGeometry((IGeometry)pathcoll);
geomcoll.GeometriesChanged();
return(polyline);
}
//根据距离切割线段，获取切割的点和切割后尾段
public void GetPointSplitAtDistance(IPolyline InputLine, double distance, ref IPolyline retureLine, ref IPoint returePoint)
{
try
{
IPolyline[] pLines = new IPolyline[2];
IPolyline pSplitLine = new PolylineClass();
pSplitLine = InputLine;
IPolyline StarttoPointLine = new PolylineClass();
IPolyline EndtoPointLine = new PolylineClass();
bool splithappened;
int partindex, segmentindex;
object pObject = Type.Missing;
pSplitLine.SplitAtDistance(distance, false, false, out splithappened, out partindex, out segmentindex);
ISegmentCollection lineSegCol = pSplitLine as ISegmentCollection;
ISegmentCollection startSegCol = StarttoPointLine as ISegmentCollection;
ISegmentCollection endSegCol = EndtoPointLine as ISegmentCollection;
for (int i = 0; i < segmentindex; i++)
{
startSegCol.AddSegment(lineSegCol.get_Segment(i), ref pObject, ref pObject);
}
for (int j = segmentindex; j < lineSegCol.SegmentCount; j++)
{
endSegCol.AddSegment(lineSegCol.get_Segment(j), ref pObject, ref pObject);
}
pLines[0] = endSegCol as IPolyline;
pLines[1] = startSegCol as IPolyline;
returePoint = new PointClass();
bool asRatio = false;
pLines[1].QueryPoint(esriSegmentExtension.esriNoExtension, pLines[1].Length / 2, asRatio, returePoint);
retureLine = pLines[0];
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "\n" + ex.ToString(), "异常");
}
}
//获取将输入点最近点，该线段分割成两段
public static IPolyline[] GetSubLine(IPoint point, IFeature pFeature)
{
try
{
IPolyline pLine = pFeature.Shape as IPolyline;
IPolyline[] pLines = new IPolyline[2];
IPolyline StarttoPointLine = new PolylineClass();
IPolyline EndtoPointLine = new PolylineClass();
bool splithappened;
int partindex, segmentindex;
object pObject = Type.Missing;
//IPoint IPoint = GetNearestPoint(point);
pLine.SplitAtPoint(point, false, false, out splithappened, out partindex, out segmentindex);
ISegmentCollection lineSegCol = (ISegmentCollection)pLine;
ISegmentCollection newSegCol = (ISegmentCollection)StarttoPointLine;
ISegmentCollection endSegCol = EndtoPointLine as ISegmentCollection;
for (int i = 0; i < segmentindex; i++)
{
newSegCol.AddSegment(lineSegCol.get_Segment(i), ref pObject, ref pObject);
}
for (int j = segmentindex; j < lineSegCol.SegmentCount; j++)
{
endSegCol.AddSegment(lineSegCol.get_Segment(j), ref pObject, ref pObject);
}
lineSegCol.RemoveSegments(0, segmentindex, true);
pLines[0] = newSegCol as IPolyline;
pLines[1] = endSegCol as IPolyline;
return(pLines);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "异常");
return(null);
}
}
public ISegment GetSegment()
{
ISegment result;
if (this.VertIndex == -1)
{
result = null;
}
else
{
IGeometryCollection geometryCollection = this.Feature.Shape as IGeometryCollection;
ISegmentCollection segmentCollection =
geometryCollection.get_Geometry(this.PartIndex) as ISegmentCollection;
result = segmentCollection.get_Segment(this.VertIndex);
}
return(result);
}
//中点捕捉
private static void GetMidPntCollection(List <IFeature> listFeats, IFeatureClass pFeatureClass, IProximityOperator pProximity, double dSearchDist)
{
IPointCollection pPntColTemp = new MultipointClass();
for (int i = 0; i < listFeats.Count; i++)
{
IFeature pFeature = listFeats[i];
//判断该Feature图层
if (pFeature.Class.ObjectClassID != pFeatureClass.ObjectClassID)
{
continue;
}
if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolyline || pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon)
{
double dScreenSearchDist = pProximity.ReturnDistance(pFeature.Shape);
if (dScreenSearchDist < 1.5 * dSearchDist)
{
IGeometryCollection pGeoCollection = pFeature.Shape as IGeometryCollection;
for (int j = 0; j < pGeoCollection.GeometryCount; j++)
{
IGeometry pGeom = pGeoCollection.get_Geometry(j);
ISegmentCollection pSegColl = pGeom as ISegmentCollection;
for (int k = 0; k < pSegColl.SegmentCount; k++)
{
ISegment pSeg = pSegColl.get_Segment(k);
IPoint pMidPoint = new PointClass();
double x = (pSeg.FromPoint.X + pSeg.ToPoint.X) / 2;
double y = (pSeg.FromPoint.Y + pSeg.ToPoint.Y) / 2;
pMidPoint.PutCoords(x, y);
object befor = Type.Missing;
object after = Type.Missing;
m_PointCollection.AddPoint(pMidPoint, ref befor, ref after);
pPntColTemp.AddPoint(pMidPoint, ref befor, ref after);
}
}
}
}
}
m_dicPointCollection.Add(pPntColTemp, "MidPnt");
}
private static void HitTest(IFeature ifeature_0, IPoint ipoint_0)
{
IGeometry shapeCopy = ifeature_0.ShapeCopy;
IPoint point = new ESRI.ArcGIS.Geometry.Point();
double num = 0.0;
int index = 0;
int num2 = 0;
bool flag = false;
if (
(!(shapeCopy as IHitTest).HitTest(ipoint_0, 0.0001, esriGeometryHitPartType.esriGeometryPartVertex,
point, ref num, ref index, ref num2, ref flag) || num >= 0.0001) &&
(shapeCopy as IHitTest).HitTest(ipoint_0, 0.0001, esriGeometryHitPartType.esriGeometryPartBoundary,
point, ref num, ref index, ref num2, ref flag) && num < 0.0001)
{
ISegmentCollection segmentCollection =
(shapeCopy as IGeometryCollection).get_Geometry(index) as ISegmentCollection;
ISegment segment = segmentCollection.get_Segment(num2);
if (segment is ILine)
{
ILine line = new Line();
line.PutCoords((segment as ILine).FromPoint, point);
ILine line2 = new Line();
line2.PutCoords(point, (segment as ILine).ToPoint);
ISegmentCollection segmentCollection2 = new Polyline() as ISegmentCollection;
object value = System.Reflection.Missing.Value;
object value2 = System.Reflection.Missing.Value;
segmentCollection2.AddSegment(line as ISegment, ref value, ref value2);
segmentCollection.ReplaceSegmentCollection(num2, 1, segmentCollection2);
segmentCollection2 = new Polyline() as ISegmentCollection;
object value3 = System.Reflection.Missing.Value;
object value4 = System.Reflection.Missing.Value;
segmentCollection2.AddSegment(line2 as ISegment, ref value3, ref value4);
segmentCollection.InsertSegmentCollection(num2 + 1, segmentCollection2);
segmentCollection.SegmentsChanged();
(shapeCopy as IGeometryCollection).GeometriesChanged();
ifeature_0.Shape = shapeCopy;
ifeature_0.Store();
}
}
}
public override void OnMouseMove(int int_2, int int_3, int int_4, int int_5)
{
IPoint anchorPoint = _context.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(int_4, int_5);
this.snapHelper_0.AnchorPoint = anchorPoint;
IActiveView arg_3A_0 = _context.FocusMap as IActiveView;
this.snapHelper_0.Snap2Point(anchorPoint, this.snapHelper_0.AnchorPoint,
esriSimpleMarkerStyle.esriSMSDiamond);
if (this.bool_5)
{
this.bool_1 = true;
if (this.bool_2)
{
this.int_0++;
if (this.int_0 >= 2)
{
this.int_0 = 0;
this.ipoint_0 = _context.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(int_4, int_5);
this.method_4();
if (!this.isegmentGraphCursor_0.MoveTo(this.ipoint_0))
{
this.isegmentGraphCursor_0.FinishMoveTo(this.ipoint_0);
}
this.ipolyline_0 = this.isegmentGraphCursor_0.CurrentTrace;
object value = Missing.Value;
object obj = this.int_1;
this.iconstructCurve_0.ConstructOffset(this.ipolyline_0, this.double_0, ref obj, ref value);
ISegmentCollection segmentCollection = this.iconstructCurve_0 as ISegmentCollection;
if (this.isegmentCollection_0 != null && this.isegmentCollection_0.SegmentCount != 0)
{
this.iline_0.PutCoords(this.ipoint_1, segmentCollection.get_Segment(0).FromPoint);
ISegment segment = this.iline_0 as ISegment;
segmentCollection.InsertSegments(0, 1, ref segment);
}
this.method_4();
}
}
}
}
/// <summary>
/// 面转线
/// </summary>
/// <params name="pPolyline"></params>
/// <returns></returns>
public static List <ILine> PolygonToListline(IPolygon Polygon)
{
List <ILine> listline = new List <ILine>();
if (Polygon != null && Polygon.IsEmpty == false)
{
IGeometryCollection pPolygonGeoCol = Polygon as IGeometryCollection;
ISegment pSegment = null;
ILine pline = new LineClass();
for (int i = 0; i < pPolygonGeoCol.GeometryCount; i++)
{
ISegmentCollection pPolygonSegCol = pPolygonGeoCol.get_Geometry(i) as ISegmentCollection;
for (int j = 0; j < pPolygonSegCol.SegmentCount; j++)
{
pSegment = pPolygonSegCol.get_Segment(j);
pline = pSegment as ILine;
listline.Add(pline);
}
}
}
return(listline);
}
public ISegmentCollection Modify1Segment(IGeometryCollection polyline, Double searchRadius, Double offsetX, Double offsetY)
{
IPoint queryPoint = m_activePoint;
IPoint hitPoint = new PointClass();
double hitDistance = 0; int hitPartIndex = 0;
int hitSegmentIndex = 0; bool rightSide = false;
IHitTest hitTest = (IHitTest)polyline;
bool foundGeometry = hitTest.HitTest(queryPoint, searchRadius, esriGeometryHitPartType.esriGeometryPartBoundary, hitPoint, ref hitDistance, ref hitPartIndex, ref hitSegmentIndex, ref rightSide);
if (foundGeometry == true)
{
IGeometry geometry = polyline.get_Geometry(hitPartIndex);
ISegmentCollection segmentCollection =
(ISegmentCollection)geometry;
ISegment segment = segmentCollection.get_Segment(hitSegmentIndex);
ITransform2D transform2D = (ITransform2D)segment;
transform2D.Move(offsetX, offsetY);
segmentCollection.SegmentsChanged();
return(segmentCollection);
}
return(null);
}
private void button2_Click(object sender, EventArgs e)
{
IFeatureLayer layer = axMapControl1.get_Layer(0) as IFeatureLayer;
IFeatureClass pFeatCla = layer.FeatureClass;
IFeature pFeature = pFeatCla.GetFeature(0);
IGeometry pGeometry = pFeature.Shape;
IPolyline pPoly = pGeometry as IPolyline;
ISegmentCollection pSegCol = pGeometry as ISegmentCollection;
ILine pLine = pSegCol.get_Segment(0) as ILine;
IPoint inPoint = new Point(); //已知点
inPoint.X = pPoly.FromPoint.X + 5;
inPoint.Y = pPoly.FromPoint.Y + 2;
IPoint outPoint = new PointClass(); //曲线上到输入点距离最小的点；
double distAlongCurveFrom = 0; //曲线其实点到输出点部分的长度
double distFromCurve = 0; //输出点到输入点的距离
bool isRightSide = true; //输入点是否在曲线的右边
pPoly.QueryPointAndDistance(esriSegmentExtension.esriNoExtension, inPoint, false, outPoint, ref distAlongCurveFrom, ref distFromCurve, ref isRightSide);
double lineHeading = pLine.Angle * 180 / PI;
//因为当前角度是以四象限X为起点的逆时针角度，对应的是地图东部
//故需要转成以北为起点的顺时针角度
if (lineHeading <= 90)
{
//1、3、4象限
lineHeading = 90 - lineHeading;
}
else
{
//2象限
lineHeading = 360 + (90 - lineHeading);
}
textBox1.Text = lineHeading.ToString();
//textBox1.Text = string.Format("{0},{1}", distAlongCurveFrom, distFromCurve);
//double len = pPoly.Length;
//textBox2.Text = len.ToString();
}
static private IPolygon ConstructPolygonFromPolyline(IPolyline pPolyline)
{
IGeometryCollection pPolygonGeoCol = new PolygonClass();
if ((pPolyline != null) && (!pPolyline.IsEmpty))
{
IGeometryCollection pPolylineGeoCol = pPolyline as IGeometryCollection;
ISegmentCollection pSegCol = new RingClass();
ISegment pSegment = null;
object missing = Type.Missing;
for (int i = 0; i < pPolylineGeoCol.GeometryCount; i++)
{
ISegmentCollection pPolylineSegCol = pPolylineGeoCol.get_Geometry(i) as ISegmentCollection;
for (int j = 0; j < pPolylineSegCol.SegmentCount; j++)
{
pSegment = pPolylineSegCol.get_Segment(j);
pSegCol.AddSegment(pSegment, ref missing, ref missing);
}
pPolygonGeoCol.AddGeometry(pSegCol as IGeometry, ref missing, ref missing);
}
}
return(pPolygonGeoCol as IPolygon);
}