Getting rid of points

Hello,

I think the solution is quite simple but I can´t find the right way at the moment.

the case:

I have multiple lines that I want to divide into points with a set distance of 3.4m. I don´t need the last point since the distance between the last point of the division and the end point of the line is smaller than 3.4m.

so what is the easiest way to get rid of those points? I attched the file (I use the old version of GH for Rhino 4)

thanks in advance!

Andreas

Attachments:

orient 2.gh, 9 KB

Replies to This Discussion

Permalink Reply by David Rutten on March 31, 2014 at 2:42am

Cull Index with the index set to -1.

David Rutten

david@mcneel.com

Permalink Reply by andreas andreas on March 31, 2014 at 2:52am

Thanks a lot. It worked. That was fast!

Another quick question. If i have a list of e.g. 12 values (points, lines etc) is it possible to extract the number of points and simply transform it into a single numeric value. So 12 lines -> a value: 12?

Permalink Reply by David Rutten on March 31, 2014 at 3:00am

Bit trickier. You can often convert data to Text, which then allows you to see what sort of data type you had. But this doesn't always work. You can use a Match component to test the text against a wildcard pattern, which gives you False (=0) for text that doesn't match and True (=1) for text that does. You then have to add all of these boolean values together:

David Rutten

david@mcneel.com

Attachments:

lines and points.gh, 11 KB

Permalink Reply by andreas andreas on March 31, 2014 at 3:01am

thank you. i will give it a try.

Permalink Reply by Fred Becquelin on March 31, 2014 at 3:27am

Another way is simple casting, if you don't mind red components...

But I like David's solution better!

Cheers

Permalink Reply by David Rutten on March 31, 2014 at 4:28am

Casting is problematic as it often works between different data types.

David Rutten

david@mcneel.com

Permalink Reply by andreas andreas on March 31, 2014 at 9:11am

I stumbled upon a problem with the first issue, deleting the last point...

The input is only a couple of points but the amout of culled points is very huge.

what did i do wrong?

Permalink Reply by Danny Boyes on March 31, 2014 at 9:15am

Wrap should be set to True. Not have the points fed into it.

Permalink Reply by andreas andreas on March 31, 2014 at 9:20am

ok, thanks. I don´t really get it though. What exactly is the "Wrap" for? What is the function?

Permalink Reply by Danny Boyes on March 31, 2014 at 9:42am

Wrap allows a list to act continuously i.e the next point in the list after the last point is the first one and the previous point in the list before the first one is the last. Therefore if you have a list of 5 items 0,1,2,3,4 where 4 is the last item in the list and you have wrap set to True then 4 can be numbered as -1 or as 9

Think of a wrapped list as circular

Permalink Reply by andreas andreas on March 31, 2014 at 9:50am

ok, got it. Thanks for the help. Much appreciated.

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