ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Core.Geometry Namespace / Coordinate3D Structure / SetEmpty Method
Example

In This Topic
    SetEmpty Method (Coordinate3D)
    In This Topic
    Sets the Coordinate3D to empty.
    Syntax
    public void SetEmpty()
    Public Sub SetEmpty() 
    Remarks
    Sets all the components (X, Y, and Z) to NaN.
    Example
    Vector Operations
    // Easy 3D vectors
    Coordinate3D v = new Coordinate3D(0, 1, 0);
    // v.Magnitude = 1
    
    Coordinate3D other = new Coordinate3D(-1, 0, 0);
    // other.Magnitude = -1
    
    double dotProduct = v.DotProduct(other);      // dotProduct = 0
    
    Coordinate3D crossProduct = v.CrossProduct(other);
    // crossProduct.X = 0
    // crossProduct.Y = 0
    // crossProduct.Z = 1
    
    Coordinate3D addVector = v.AddCoordinate3D(other);
    // addVector.X = -1
    // addVector.Y = 1
    // addVector.Z = 0
    
    // Rotate around x-axis
    Coordinate3D w = v;
    w.Rotate(Math.PI, other);
    // w.X = 0
    // w.Y = -1
    // w.Z = 0
    
    w.Scale(0.5);
    // w.X = 0
    // w.Y = -0.5
    // w.Z = 0
    
    w.Scale(-4);
    // w.X = 0
    // ww.Y = 2
    // w.Z = 0
    // w.Magnitude = 2
    
    w.Move(3, 2, 0);
    // w.X = 3
    // w.Y = 4
    // w.Z = 0
    // w.Magnitude = 5
    
    
    Coordinate3D emptyVector = new Coordinate3D();
    // emptyVector = (0, 0, 0)
    emptyVector.SetEmpty();
    // emptyVector = (Nan, Nan, Nan)
    
    Coordinate3D c1 = new Coordinate3D(2, 3, 4);
    Coordinate3D c2 = new Coordinate3D(9, -1, 3);
    
    var result_add = c1 + c2;
    // result_add = (11, 2, 7)
    var result_sub = c1 - c2;
    // result_sub = (-7, 4, 1)
    
    var b = result_sub != result_add;
    // b = true
    
    result_add = emptyVector + c1;
    // result_add = (Nan, Nan, Nan)
    
    b = result_add == emptyVector;
    // b = true
    
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.0 or higher.
    See Also