MoveNext Method (LasPointCursor)

In This Topic

Advances to the next LasPoint in this LasPointCursor. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

Visual Basic (Declaration)
C#

Public Function MoveNext() As Boolean

public bool MoveNext()

Return Value

true if the cursor has successfully advanced to the next point; false if the cursor has passed the end of the collection.

Exceptions

Exception	Description
System.InvalidOperationException	This instance has already called MoveNextArray. Call Reset before using this method.
ArcGIS.Core.Data.Exceptions.GeodatabaseException	A geodatabase-related exception has occurred.

Remarks

If MoveNext() returns true, a LasPoint object is created. Even if this point (Current) is not otherwise needed, it should be properly disposed through a call to System.IDisposable.Dispose or with the use of a using statement.

Example

Search LAS Points

{
  // search within an extent
  ArcGIS.Core.Data.Analyst3D.LasPointFilter pointFilter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
  pointFilter.FilterGeometry = envelope;
  using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDataset.SearchPoints(pointFilter))
  {
    while (ptCursor.MoveNext())
    {
      using (ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current)
      {

      }
    }
  }

  // search within an extent and limited to specific classification codes
  pointFilter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
  pointFilter.FilterGeometry = envelope;
  pointFilter.ClassCodes = new List<int> { 4, 5 };
  using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDataset.SearchPoints(pointFilter))
  {
    while (ptCursor.MoveNext())
    {
      using (ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current)
      {

      }
    }
  }
}

Search for LAS Points

{
  // Note: Needs QueuedTask to run
  {
    // searching on the LasDatasetLayer will honor any LasPointDisplayFilter
    // search all points
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDatasetLayer.SearchPoints(null))
    {
      while (ptCursor.MoveNext())
      {
        using ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current;
        //Use the point
      }
    }

    // search within an extent
    ArcGIS.Core.Data.Analyst3D.LasPointFilter pointFilter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
    pointFilter.FilterGeometry = envelope;
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDatasetLayer.SearchPoints(pointFilter))
    {
      while (ptCursor.MoveNext())
      {
        using ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current;
        //Use the point
      }
    }

    // search within an extent and limited to specific classification codes
    pointFilter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
    pointFilter.FilterGeometry = envelope;
    pointFilter.ClassCodes = new List<int> { 4, 5 };
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDatasetLayer.SearchPoints(pointFilter))
    {
      while (ptCursor.MoveNext())
      {
        using ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current;
        //Use the point
      }
    }
  }
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.2 or higher.

Reference

LasPointCursor Class
LasPointCursor Members

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