shifting number

Is there an easy way to shift the path address in a list yet keep the same number of branches and in the same order. I find myself needing to do this after using the relative path with a negative path shift. I realize I can use 'replace branch' but I do not have an available mask to utilize. I have simplified the problem to its simplest form so my question is understandable, however, the tree I am trying perform this operation on is a much larger 3 digit path address.

{1;3;2}

{2;3;4}

{3;5;4}

{4;3;7}

Change the above list to the list below.

{0;3;2}

{1;3;4}

{2;5:4}

{3;3;7}

I wish for a more robust arsenal of branch manipulation components. Most of the things I need to do are possible with the existing components, however, many operations take several components to perform even simple manipulations. Since branch/path manipulation is so integral to using GH successfully, it seems the GH community would be well served by enhancing the available path manipulation components.

Thanks,

Stan

Replies to This Discussion

Permalink Reply by Dimitri Nikitin on July 13, 2011 at 2:45pm

Hi, Stan,

maybe this will work for you:

(simple Path Mapper operation)

Dimitri

Permalink Reply by Danny Boyes on July 13, 2011 at 2:46pm

Hi Stan,

Path Mapper = {A;B;C} --> {A-1;B;C}

Permalink Reply by Stan Carroll on July 13, 2011 at 3:00pm

Ah, Path Mapper. I never think to use expressions within path mapper, I will from now on....You guys made that look easy. Thank you both, very much!!!

Stan

Permalink Reply by Andrew Heumann on July 13, 2011 at 3:00pm

Here's one Path-mapper free way:

As you mention, this is a lot of components to achieve a simple action, but it does the trick. The benefit of doing it without the path mapper is that it is now possible to save as a cluster if this is a task you find yourself needing to do often.