ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.Analyst3D Namespace / LasPointFilter Class / LasPointFilter Constructor
Example

In This Topic
    LasPointFilter Constructor
    In This Topic
    Create an instance of LasPointFilter.
    Syntax
    public LasPointFilter()
    Public Function New()
    Example
    Search LAS Points
    // search all points
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDataset.SearchPoints(null))
    {
      while (ptCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.LasPoint point = ptCursor.Current)
        {
    
        }
      }
    }
    
    // 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 using pre initialized arrays
    // search all points
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDataset.SearchPoints(null))
    {
      int count;
      Coordinate3D[] lasPointsRetrieved = new Coordinate3D[10000];
      while (ptCursor.MoveNextArray(lasPointsRetrieved, null, null, null, out count))
      {
        var points = lasPointsRetrieved.ToList();
      
        // ...
      }
    }
    
    // search within an extent
    // use MoveNextArray retrieving coordinates, fileIndex and pointIds
    ArcGIS.Core.Data.Analyst3D.LasPointFilter filter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
    filter.FilterGeometry = envelope;
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDataset.SearchPoints(filter))
    {
      int count;
      Coordinate3D[] lasPointsRetrieved = new Coordinate3D[50000];
      int[] fileIndexes = new int[50000];
      double[] pointIds = new double[50000];
      while (ptCursor.MoveNextArray(lasPointsRetrieved, null, fileIndexes, pointIds, out count))
      {
        var points = lasPointsRetrieved.ToList();
    
      }
    }
          
    Search for LAS Points
    // 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)
        {
    
        }
      }
    }
    
    // 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)
        {
    
        }
      }
    }
    
    // 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)
        {
    
        }
      }
    }
    
    Search using pre initialized arrays
    // search all points and process with a set size of array retrieving only coordinates
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDatasetLayer.SearchPoints(null))
    {
      int count;
      Coordinate3D[] lasPointsRetrieved = new Coordinate3D[10000];
      while (ptCursor.MoveNextArray(lasPointsRetrieved, null, null, null, out count))
      {
        var points = lasPointsRetrieved.ToList();
    
        // ...
      }
    }
    
    // search within an extent
    // use MoveNextArray retrieving coordinates, fileIndex and pointIds
    ArcGIS.Core.Data.Analyst3D.LasPointFilter filter = new ArcGIS.Core.Data.Analyst3D.LasPointFilter();
    filter.FilterGeometry = envelope;
    using (ArcGIS.Core.Data.Analyst3D.LasPointCursor ptCursor = lasDatasetLayer.SearchPoints(filter))
    {
      int count;
      Coordinate3D[] lasPointsRetrieved = new Coordinate3D[50000];
      int[] fileIndexes = new int[50000];
      double[] pointIds = new double[50000];
      while (ptCursor.MoveNextArray(lasPointsRetrieved, null, fileIndexes, pointIds, out count))
      {
        var points = lasPointsRetrieved.ToList();
    
      }
    }
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.2 or higher.
    See Also