Selecting lines less than a particular length

Hello I am trying to 'select' the lines of this model which are less than 3000 units long, find the end points, create a circcle on the end and then rotate these particular circles to 45 degrees.

I can use 'less than' but I cannot seem to draw the circles or rotate them on an axis.

Can someone help?

Attachments:

one building division.3dm, 618 KB
one building division.ghx, 1.4 MB

Replies to This Discussion

Permalink Reply by Trish on September 20, 2010 at 9:44pm

Actually, is anyone able to write a rule where the length of the line affects the angle of rotation for all of them whereby the longest length is horizontal and as it gets shorter, the angle moves towards vertical?

Permalink Reply by Danny Boyes on September 21, 2010 at 3:04am

If you are using the latest version of GH (v0.7xx) then you can use the ReMap component to assign the values for rotation.

Here I have taken taken the shortest length to be vertical 0.5*Pi radians and the longest to remain horizontal 0 radians.

Permalink Reply by Evan C on September 21, 2010 at 1:19am

here's an easy way to select lines whose length is within a certain range.

Permalink Reply by Luiz Bueno on July 20, 2017 at 1:28am

Hi Evan, could you please name the nodes you used? Sorry, I dont recognize the icons

Luiz Bueno

Permalink Reply by peter on September 21, 2010 at 8:23am

hi,
the attached definition should do selection trick (ghx0.70053), the dispatch component exports the indexes of curves longer and shorter and then you can use that to cull the list.
the rotation is based directly on the lenght x a multiplication factor but obviously you can add whateber equasion you like ...
Peter

Attachments:

Selectcurvesbylength_androtate.ghx, 128 KB

Permalink Reply by Luiz Bueno on July 20, 2017 at 1:26am

Hey! This was really helpful. I got an image and in Firefly I processed it using the video filtering from the example files (Mainly the silhouette) turning the image in a bunch of curves.

The thing is that it generates tons of very little tiny lines where there's low information.

To remove these tiny lines I used your your file above. I changed it to serve my purpose, but wouldnt have done it without yours. THank you

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