ReplaceNaNZs Method (IGeometryEngine)

In This Topic

Replaces each non-simple (NaN) Z-value on the geometry with the specified z-value. All other simple (non-NaN) z-values are unchanged.

Syntax

C#
Visual Basic (Declaration)

Geometry ReplaceNaNZs( 
   Geometry geometry,
   double zValue
)

Function ReplaceNaNZs( _
   ByVal geometry As Geometry, _
   ByVal zValue As Double _
) As Geometry

Parameters

geometry: The geometry to replace non simple Zs.
zValue: The Z-value to assign.

Return Value

A geometry in which each coordinate has a simple (non-NaN) Z-value.

Exceptions

Exception	Description
System.ArgumentNullException	Geometry is null or empty.
System.NotImplementedException	The method is not implemented for GeometryBag.
System.InvalidOperationException	This geometry is not Z-Aware.

Remarks

Use this function in conjunction with GeometryEngine.IsSimpleAsFeature prior to saving a geometry to a geodatabase.

Example

Replace NaN Zs in a polygon

List<Coordinate3D> coordsZ = new List<Coordinate3D>()
{
  new Coordinate3D(1, 2, double.NaN),
  new Coordinate3D(4, 5, 3),
  new Coordinate3D(7, 8, double.NaN)
};

Polygon polygon = PolygonBuilderEx.CreatePolygon(coordsZ);
// polygon.HasZ = true

Polygon polygonZReplaced = GeometryEngine.Instance.ReplaceNaNZs(polygon, -1) as Polygon;

// polygonZReplaced.Points[0].Z = -1
// polygonZReplaced.Points[1].Z = 3
// polygonZReplaced.Points[2].Z = -1

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

IGeometryEngine Interface
IGeometryEngine Members

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