Here I have a list of lines and I am trying to loop through each of them and extract parallel ones. (check each line against one another). The second step is to then put these parallel lines into separate list and check if these intersect at more than 2 points (overlap). if yes then put them in a se…

can you please explain what should go in the inputs of Vector.AngleAboutAxis? [image]

Line.Direction > Vector.AngleAboutAxis > Modulo (% is the symbol) of 180 > Vector.AngleAboutAxis > List.GroupByKey

Normalize to direction vector of the line, and compare the vectors of the two lines

This is likely ideal for smaller datasets - and ks a great shout out. But as the data set grows you’ll run into performance issues as you have to test all objects against all other objects (N^2) instead of testing all objects once and grouping them (N). While the action of comparing vectors with the…

Can you explain this in a little detail? i am still a little confused. very new to this

What type of element are you working with? It’s likely you want to pull the location line, or the curve… Flatten the list of curves if not. Be sure you only have one curve per element. Assuming. You are working in plan. To start the angle about axis, the first vector is the line direction. The seco…

[image] I am bringing in a list of lines

If those are line elements (such as detail lines or model lines) there is a CurveElement class in the library which has a node along the lines of CurveElement.Curve or LocationCurve or similar.

Hi, i am not understanding why are we using curves and why cant lines be used. Even if we extract curves, there are still going to be lines with (start point, endpoint and direction). I would like to understand the concept and logic behind this approach. I do see that the way the list comes out is …

How to find lines which are parallel to one another

Revit

tabeertariq April 16, 2025, 7:34pm 7

I was trying to understand this solution as well Find which lines are parallel

Topic		Replies	Views
Trying to find which lines are parallel Revit revit , python , geometry , dynamo	2	55	April 16, 2025
Find which lines are parallel Revit revit , dynamo	16	7272	April 13, 2018
Check Is Parallel with Margin Revit revit , python , geometry , dynamo	2	116	March 21, 2024
Group closest parallel lines which are equal in length Packages revit , python , dynamo	5	3089	April 13, 2018
Group Parallel Lines by Direction and Distance Packages python	4	2905	May 14, 2020

How to find lines which are parallel to one another

Related topics