Is there Point3D?

Question

Is there a built in type Point3 in .Net? Some kind of this

public class Point3D
{
    public double X { get; set; }
    public double Y { get; set; }
    public double Z { get; set; }
}

but built in. It is not hard to implement it myself, but..

Solution 1

System.Windows.Forms.DataVisualization.Charting has Point3D class.

Represents the coordinates of a three-dimensional (3D) data point. This class is used when performing custom drawing with 3D charts.

• X     Gets or sets the X coordinate of a 3D point.
• Y     Gets or sets the Y coordinate of a 3D point.
• Z     Gets or sets the Z coordinate of a 3D point.

Also has Point3D structure.

Represents an x-, y-, and z-coordinate point in 3-D space.

Solution 2

System.Windows.Forms.DataVisualization.Charting has a class Point3D

• float X, Y, Z
• System.Windows.Forms.DataVisualization.dll (WinForms)
• .NET Framework >= 4.0

System.Windows.Media.Media3D has a struct Point3D

• double X, Y, Z
• PresentationCore.dll (WPF)
• .NET Framework >= 3.0
• .NET Core >= 3.0

I know that Vector3D is not a Point3D, but if you just want a struct with X, Y, Z:

System.Windows.Media.Media3D has a struct Vector3D

• double X, Y, Z
• PresentationCore.dll (WPF)
• .NET Framework >= 3.0
• .NET Core >= 3.0

System.Numerics has a struct Vector3

• float X, Y, Z
• System.Numerics.dll
• .NET Framework >= 4.6
• .NET Core >= 1.0

Only System.Numerics.Vector3 does NOT depend on WinForms or WPF!

Solution 3

• DirectX has a Microsoft.DirectX.Vector3 Structure, but will it be overkill for your application?
• XNA has class Microsoft.XNA.Framework.Vector3
• Unity3D has a Vector3 class for Representation of 3D vectors and points.
• OpenTK also represents a 3D vector using three single-precision floating-point numbers.

Comments

[Cody Gray]

True enough. But if your code does not already use one of these libraries, it would be silly to add a dependency on them for such a simple data-storage class. Just define it yourself.

[Terry Tyson]

I realize I'm late to the party on this one but another advantage of you own class is that you can make it handle unit conversions if necessary.

[ToolmakerSteve]

@TerryTyson - or use a built-in class, and define extension methods.

[primo]

Perhaps worth noting, System.Windows.Media.Media3D also contains Matrix3D and Quaternion, so if you intend to do any transformations on your points, it's probably the correct choice.