ArcGIS Pro 2.8 API Reference Guide
Disjoint3D Method (IGeometryEngine)
Example 

ArcGIS.Core.Geometry Namespace > IGeometryEngine Interface : Disjoint3D Method
The base geometry.
The comparison geometry.
Returns true if geometry1 and geometry2 are disjoint in a 3-dimensional manner.
Syntax
Function Disjoint3D( _
   ByVal geometry1 As Geometry, _
   ByVal geometry2 As Geometry _
) As Boolean

Parameters

geometry1
The base geometry.
geometry2
The comparison geometry.

Return Value

True if the geometry1 and geometry2 are disjoint.
Exceptions
ExceptionDescription
Either geometry1 or geometry2 or both are null or empty.
The method is not implemented for GeometryBag.
Incompatible spatial references between the input geometries.
Either geometry1 or geometry2 is not Z-Aware.
Remarks
Two geometries are 3D disjoint, if they are z-aware and don't have any points in common. The geometries must be z-aware or an exception will be thrown.
Example
//
// pt on pt
//

MapPoint pt = MapPointBuilder.CreateMapPoint(1.0, 1.0);
MapPoint pt2 = MapPointBuilder.CreateMapPoint(2.0, 2.5);

bool disjoint = GeometryEngine.Instance.Disjoint(pt, pt2);       // result is true

using (MultipointBuilder mpb = new MultipointBuilder())
{
  mpb.Add(pt);
  mpb.Add(pt2);
  Multipoint multiPoint = mpb.ToGeometry();

  disjoint = GeometryEngine.Instance.Disjoint(multiPoint, pt);     // result is false
}

// 
// pt and line
// 

List<MapPoint> list = new List<MapPoint>();
list.Add(MapPointBuilder.CreateMapPoint(1.0, 1.0));
list.Add(MapPointBuilder.CreateMapPoint(3.0, 3.0));
list.Add(MapPointBuilder.CreateMapPoint(5.0, 1.0));

Polyline line1 = PolylineBuilder.CreatePolyline(list);
disjoint = GeometryEngine.Instance.Disjoint(line1, pt2);       // result is true

disjoint = GeometryEngine.Instance.Disjoint(pt2, line1);       // result is true

// end pt of line
disjoint = GeometryEngine.Instance.Disjoint(line1, pt);        // result is false

//
// pt and polygon
//
List<MapPoint> polyPts = new List<MapPoint>();
polyPts.Add(MapPointBuilder.CreateMapPoint(3.0, 2.0));
polyPts.Add(MapPointBuilder.CreateMapPoint(3.0, 6.0));
polyPts.Add(MapPointBuilder.CreateMapPoint(6.0, 6.0));
polyPts.Add(MapPointBuilder.CreateMapPoint(6.0, 2.0));

Polygon poly1 = PolygonBuilder.CreatePolygon(polyPts);
disjoint = GeometryEngine.Instance.Disjoint(poly1, pt);          // result is true
disjoint = GeometryEngine.Instance.Disjoint(pt, poly1);          // result is true

// 
// line and line
//

List<MapPoint> list2 = new List<MapPoint>();
list2.Add(MapPointBuilder.CreateMapPoint(1.0, 3.0));
list2.Add(MapPointBuilder.CreateMapPoint(3.0, 1.0));
list2.Add(MapPointBuilder.CreateMapPoint(5.0, 3.0));

Polyline line2 = PolylineBuilder.CreatePolyline(list2);
disjoint = GeometryEngine.Instance.Disjoint(line1, line2);         // result is false

//
// line and polygon
//
disjoint = GeometryEngine.Instance.Disjoint(poly1, line1);         // result is false
disjoint = GeometryEngine.Instance.Disjoint(line1, poly1);         // result is false

//
// polygon and polygon
//
Envelope env = EnvelopeBuilder.CreateEnvelope(MapPointBuilder.CreateMapPoint(1.0, 1.0), MapPointBuilder.CreateMapPoint(4, 4));
Polygon poly2 = PolygonBuilder.CreatePolygon(env);

disjoint = GeometryEngine.Instance.Disjoint(poly1, poly2);         // result is false


// disjoint3D

SpatialReference sr = SpatialReferences.WGS84;

MapPoint pt3D_1 = MapPointBuilder.CreateMapPoint(1, 1, 1, sr);
MapPoint pt3D_2 = MapPointBuilder.CreateMapPoint(2, 2, 2, sr);
MapPoint pt3D_3 = MapPointBuilder.CreateMapPoint(1, 1, 2, sr);

using (MultipointBuilder mpb = new MultipointBuilder())
{
  mpb.Add(pt3D_1);
  mpb.Add(pt3D_2);
  mpb.HasZ = true;

  Multipoint multiPoint = mpb.ToGeometry();
  disjoint = GeometryEngine.Instance.Disjoint3D(multiPoint, pt3D_2);     // disjoint = false
  disjoint = GeometryEngine.Instance.Disjoint3D(multiPoint, pt3D_3);     // disjoint = true
}
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

IGeometryEngine Interface
IGeometryEngine Members