Filtering list with points

Hi,

I generated the list of points, that you can see in the attached jpeg.

I now want to use them to create polylines.

In this case, it would be 4 polylines (#1 made from (0;0) to (0;3), #2 from (1;0) to (1;3) and so on.

I have a feeling, that this is not very complicated, but can't get it to work...

Anyone here with an answer?

Thanks! Julian

Replies to This Discussion

Permalink Reply by Danny Boyes on August 8, 2011 at 7:05am

If all the points you need to create the polylines are on the upper branch then a Path Mapper with {A;B} --> {A} would get all right points on one branch for each line.

Permalink Reply by Dedackelzucht on August 8, 2011 at 7:10am

ha,

haven´t seen your anwser :-)

Best regards

DeDackel

Permalink Reply by Julian Preiss on August 8, 2011 at 7:11am

Hi,

thanks for the quick answer!

I don't think that would work. At the moment, if I plug this list into a Polyline component, it tells me, that there is an insufficient number of points to create a polyline. I understand, why that is (because each point is in a seperate branch and a polyline needs more than one Pt. GH tries to create 14 Polylines with one Pt each).

I somehow need to tell it, that all points with an index (0;x) should be used for one polyline and then all points with an index (1;x) and so on.

The Pathmapper doesn't seem to be the right tool here.

Julian

Permalink Reply by Danny Boyes on August 8, 2011 at 7:15am

That's exactly what the Path Mapper does. You are remapping all of the points referenced on the B branch to be grouped together on the A. Have a look at the image above (which might not have been there before when you first looked)

Permalink Reply by Julian Preiss on August 8, 2011 at 7:15am

Sorry, you're actually right...

Thanks for your answer!

Permalink Reply by Dedackelzucht on August 8, 2011 at 7:08am

Hey

You can use the Pathmapper therefore

{A;B} --> {A}

This generates a new List with 4 paths {} with items ().

{1} (3)

{2} (3)

{3} (4)

{4} (4)