GetAvailableClassCodesAndLabels Method

In This Topic

Gets the available classification codes and their corresponding labels. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public Dictionary<int,string> GetAvailableClassCodesAndLabels()

Public Function GetAvailableClassCodesAndLabels() As Dictionary(Of Integer,String)

Return Value

Dictionary {System.Int32, System.String}

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Remarks

Classification codes are used to define the type of surface, or surfaces, that reflected the lidar pulse. Classification codes are used in a PointCloudFilterDefinition to filter which point cloud data is rendered (or not)

Example

Query all class codes and lables in the PointCloudSceneLayer

//Must be called on the MCT
//var pcsl = ...;
//At 2.x - Dictionary<int, string> classCodesAndLabels =
//                    pcsl.QueryAvailableClassCodesAndLabels();

Dictionary<int, string> classCodesAndLabels = 
                pcsl.GetAvailableClassCodesAndLabels();

Set a Filter for PointCloudSceneLayer

//Must be called on the MCT
//var pcsl = ...;
//Retrieve the available classification codes
//At 2.x - var dict = pcsl.QueryAvailableClassCodesAndLabels();
var dict = pcsl.GetAvailableClassCodesAndLabels();

//Filter out low noise and unclassified (7 and 1 respectively)
//consult https://pro.arcgis.com/en/pro-app/help/data/las-dataset/storing-lidar-data.htm
var filterDef = new PointCloudFilterDefinition()
{
  ClassCodes = dict.Keys.Where(c => c != 7 && c != 1).ToList(),
  ReturnValues = new List<PointCloudReturnType> { 
                         PointCloudReturnType.FirstOfMany }
};
//apply the filter
pcsl.SetFilters(filterDef.ToCIM());

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

PointCloudSceneLayer Class
PointCloudSceneLayer Members

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