コード例 #1
0
 /// <summary>
 /// PointToPolyLine - Takes a point collection and generates a polyline
 /// </summary>
 /// <param name="pntColl"></param>
 /// <returns>PolyLine</returns>
 public static ESRI.ArcGIS.Geometry.Polyline PointToPolyline(ESRI.ArcGIS.Geometry.IPointCollection pntColl)
 {
     ESRI.ArcGIS.Geometry.Polyline pline = new ESRI.ArcGIS.Geometry.Polyline();
     if (pntColl.PointCount > 0)
     {
         ESRI.ArcGIS.Geometry.ISegmentCollection segColl = PointsToSegmentColl(pntColl);
         if (segColl.SegmentCount >= 0)
         {
             pline = segColl as ESRI.ArcGIS.Geometry.Polyline;
         }
     }
     return(pline);
 }
コード例 #2
0
ファイル: CreateContour.cs プロジェクト: zj8487/HyDM
        /// <summary>
        /// 验证拓扑
        /// </summary>
        /// <param name="topology">拓扑对象</param>
        /// <param name="envelope">验证范围</param>
        private void ValidateTopology(ITopology topology, ESRI.ArcGIS.Geometry.IEnvelope envelope)
        {
            try
            {
                // Get the dirty area within the provided envelope.
                ESRI.ArcGIS.Geometry.IPolygon           locationPolygon   = new ESRI.ArcGIS.Geometry.PolygonClass();
                ESRI.ArcGIS.Geometry.ISegmentCollection segmentCollection = (ESRI.ArcGIS.Geometry.ISegmentCollection)locationPolygon;
                segmentCollection.SetRectangle(envelope);
                ESRI.ArcGIS.Geometry.IPolygon polygon = topology.get_DirtyArea(locationPolygon);

                // If a dirty area exists, validate the topology.if (!polygon.IsEmpty)
                {
                    // Define the area to validate and validate the topology.
                    ESRI.ArcGIS.Geometry.IEnvelope areaToValidate = polygon.Envelope;
                    ESRI.ArcGIS.Geometry.IEnvelope areaValidated  = topology.ValidateTopology(areaToValidate);
                }
            }
            catch (Exception)
            {
            }
        }