Dividing of Curves into Unequal Lengths (using graphmapper)

I am looking for advise on how to divide a curve into unequal segments using the graphmapper. Attached is my definition file and a screen shot. What I would like to do is this: Using the graphmapper, take the output values and apply them as length segments on a curve.
In the attached screen shot, you can see the length values in the notepad. Am I taking a wrong path here??? Unfortunately, this is a small portion of a definition I am working on. I would like to use the graphmapper to generate my segments lengths because of it being part of other components.
Any comment or solutions would be very appreciated. Thx

Attachments:

gh_forum_curve lengths_01.jpg, 190 KB
GH_forum_divide curve in unequal legths.ghx, 68 KB
GH_forum_divide curve into unequal lengths.3dm, 612 KB

Replies to This Discussion

Permalink Reply by David Rutten on May 10, 2010 at 12:59am

Hi Greg,

you could try using Mass Addition to add all the segment lengths together. The Partial Result output of Mass Addition should then give you lengths along the curve for every point.

However, this approach does not guarantee that the whole curve will be divided as the sum total of all segments is very unlikely indeed to match the total length of the curve.

--
David Rutten
david@mcneel.com
London, UK

Permalink Reply by Greg Hall on May 10, 2010 at 7:38am

Thanks David,
I've tried the Mass Addition and not sure what going on. The output understand that there are 75 vectors (correct), but wants to place each vector equally 1 units apart... Maybe I am missing something. Am I making this difficult because I want to use graphmapper?
-Greg

Attachments:

gh_forum_curve lengths_02.jpg, 116 KB

Permalink Reply by Danny Boyes on May 10, 2010 at 8:51am

There are two Mass Addition Components one for Vectors and one for Numbers have a look under Scalar>Utilities in version 0.6 or Maths Tab in v0.7

Permalink Reply by Greg Hall on May 10, 2010 at 9:14am

Ah ha! Thanks for the clarification. Still working on it and not getting too far. Maybe I don't quite understand the component. Going to see if I can find something in the manual. thanks for the input.

Permalink Reply by Danny Boyes on May 10, 2010 at 9:41am

Try using the Eval Component (Curve>Analysis>Eval) this allows you to obtain a point on a curves length it will accept either a length factor i.e. 0-1 like the output of the graph mapper or as a specific length along the curve just set N to False.

Once you have the points you can then shatter the curve Curve>Division>Shatter with these points

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