/// <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);
}
/// <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)
{
}
}