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Vector2dIsTiny Method (Double)

Determines whether a vector is very short.

Namespace:  Rhino.Geometry
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 6.0
Syntax
public bool IsTiny(
	double tolerance
)

Parameters

tolerance
Type: SystemDouble
A nonzero value used as the coordinate zero tolerance. .

Return Value

Type: Boolean
(Math.Abs(X) <= tiny_tol) AND (Math.Abs(Y) <= tiny_tol) AND (Math.Abs(Z) <= tiny_tol).
Examples
using System;

partial class Examples
{
  public static Rhino.Commands.Result AddLine(Rhino.RhinoDoc doc)
  {
    Rhino.Input.Custom.GetPoint gp = new Rhino.Input.Custom.GetPoint();
    gp.SetCommandPrompt("Start of line");
    gp.Get();
    if (gp.CommandResult() != Rhino.Commands.Result.Success)
      return gp.CommandResult();

    Rhino.Geometry.Point3d pt_start = gp.Point();

    gp.SetCommandPrompt("End of line");
    gp.SetBasePoint(pt_start, false);
    gp.DrawLineFromPoint(pt_start, true);
    gp.Get();
    if (gp.CommandResult() != Rhino.Commands.Result.Success)
      return gp.CommandResult();

    Rhino.Geometry.Point3d pt_end = gp.Point();
    Rhino.Geometry.Vector3d v = pt_end - pt_start;
    if (v.IsTiny(Rhino.RhinoMath.ZeroTolerance))
      return Rhino.Commands.Result.Nothing;

    if (doc.Objects.AddLine(pt_start, pt_end) != Guid.Empty)
    {
      doc.Views.Redraw();
      return Rhino.Commands.Result.Success;
    }
    return Rhino.Commands.Result.Failure;
  }
}
Python
import Rhino
import scriptcontext
import System.Guid

def AddLine():
    gp = Rhino.Input.Custom.GetPoint()
    gp.SetCommandPrompt("Start of line")
    gp.Get()
    if gp.CommandResult()!=Rhino.Commands.Result.Success:
        return gp.CommandResult()
    pt_start = gp.Point()

    gp.SetCommandPrompt("End of line")
    gp.SetBasePoint(pt_start, False)
    gp.DrawLineFromPoint(pt_start, True)
    gp.Get()
    if gp.CommandResult() != Rhino.Commands.Result.Success:
        return gp.CommandResult()
    pt_end = gp.Point()
    v = pt_end - pt_start
    if v.IsTiny(Rhino.RhinoMath.ZeroTolerance):
        return Rhino.Commands.Result.Nothing

    id = scriptcontext.doc.Objects.AddLine(pt_start, pt_end)
    if id!=System.Guid.Empty:
        scriptcontext.doc.Views.Redraw()
        return Rhino.Commands.Result.Success
    return Rhino.Commands.Result.Failure

if __name__=="__main__":
    AddLine()
See Also