Grasshopper

algorithmic modeling for Rhino

C# vector length syntax?

i know its a simple thing. but for the life of me i cant write the right code to return the vector length (as in magnitude NOT ARRAY LENGTH!). Every attempt of mine is returning the array length or 0.0 for all indices... bascially whats the syntax i should be using

--failure clusterfrak number 1--

//note im doing this in grasshopper. "x" is one "Point3d" point, "y" is a list of Point3d's

   

    Vector3d stan = new Vector3d(x);
    Vector3d[] cartman = new Vector3d[y.Count];
    Vector3d[] kenny = new Vector3d[y.Count];

    //double[] kyle = new double[y.Count];

    for(int i = 0; i < y.Count; i++){
      cartman[i] = new Vector3d(y[i]);

      kenny[i] = Vector3d.Subtract(cartman[i], stan);
    }

    A = kenny.Length;

// all this does is return the array length

--screw up num 2

    Vector3d stan = new Vector3d(x);
    Vector3d[] cartman = new Vector3d[y.Count];
    Vector3d[] kenny = new Vector3d[y.Count];

    double[] kyle = new double[y.Count];

    for(int i = 0; i < y.Count; i++){
      cartman[i] = new Vector3d(y[i]);

      kenny[i] = Vector3d.Subtract(cartman[i], stan);
      kyle = kenny.GetLength;
    }

//this one just fails to run and throws up something about converting to a non delegate //type...

any ideas?

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Replies to This Discussion

Permalink Reply by Mario L on April 17, 2012 at 7:45pm

nevermind. i figured it out. all i needed to do was run

kyle[i]  = kenny[i].length;

and then return kyle....

now if i could just figure out how to Sort this damn thing from lowest value to highest id be all set.

Permalink Reply by Mario L on April 17, 2012 at 7:49pm

nevermind again...

Array.Sort(kyle);

Permalink Reply by David Rutten on April 18, 2012 at 7:45am

Hi Mario,

I never use Arrays unless I'm working on ultra-performance-critical code. List<T> is soooo much easier to use and RhinoList<T> is better still.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Matthew Owens on July 27, 2012 at 10:34am

Why is RhinoList better?  What is the difference?

Permalink Reply by David Rutten on July 27, 2012 at 11:18am

I wrote it :)       and it has a Last property.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Mario L on August 3, 2012 at 10:51am

I should say that since this post ive started using RhinoList religiously!

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