CanCreateTraverse Method

In This Topic

Determines if the features can be created for the traverse using the specified template.

Syntax

Visual Basic (Declaration)
C#

Public Function CanCreateTraverse( _
   ByVal traverse As Traverse, _
   ByVal featureTemplate As EditingTemplate _
) As Boolean

public bool CanCreateTraverse( 
   Traverse traverse,
   EditingTemplate featureTemplate
)

Parameters

traverse: The traverse to create features for.
featureTemplate: The template to create features with.

Return Value

True if features can be created for the traverse using the specified template.

Remarks

It is important to call this method prior to CreateTraverse to ensure that the traverse is well defined and the template specified is valid.

The traverse is well defined if the following is true - there must be at least 1 courses in the traverse; the first course cannot be defined by a tangent curve or an angle/distance line. In addition in order to create valid features, the traverse should also have a ArcGIS.Desktop.Editing.COGO.Traverse.StartPoint defined.

Only polyline or polygon templates can be used to create features.

Note that if this method returns true it does not preclude the CreateTraverse method from erroring due to a calculation error and callers should code defensively and use appropriate exception handling.

Example

Create Features

var layerName = "Lot_Lines"; //Name of the COGO enabled line layer in the map
var fLayer = MapView.Active?.Map?.GetLayersAsFlattenedList().OfType<FeatureLayer>().Where(l => l.
          Name.Equals(layerName, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
var templateLotLines = fLayer.GetTemplates().FirstOrDefault(); //get the feature template

var editOper = new EditOperation
{
  Name = "Create Traverse",
  SelectNewFeatures = false
};

var dirOffset = g2gCorrection.GetDirectionOffset();
var scaleFactor = g2gCorrection.GetConstantScaleFactor();
var dictAttributes = new Dictionary<string, object>();
dictAttributes["Rotation"] = dirOffset;
dictAttributes["Scale"] = scaleFactor;
if (editOper.CanCreateTraverse(travParcel, templateLotLines))
{
  await editOper.CreateTraverse(travParcel, templateLotLines, dictAttributes);
}

if (!editOper.IsEmpty)
{
  editOper.Execute();

  // access the mapMember, OID for each created feature 
  foreach (var course in travParcel.Courses)
  {
    var mapMember = course.MapMember;
    var oid = course.ObjectID;

    var insp = new ArcGIS.Desktop.Editing.Attributes.Inspector();
    insp.Load(mapMember, oid);
    var shape = insp.Shape;
  }
}

Requirements

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

ArcGIS Pro version: 3.7 or higher.

Reference

EditOperation Class
EditOperation Members

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