Anyone have an idea how to find the center point through a model from start to end? I can’t seem to find an API that supports this. Alternative (a bit clearer / more technical): Does anyone know a good way to compute a model’s centerline (center point path) from one end to the other? I haven’t f…

I wonder, for example, where is the centerline of this model? Where this model start and where is the end? On what basis would anyone generate a centerline? How many of centerlines are there? Which ones are you talking about? [image] Are you talking about Ruby API or SDK ? The API is there, b…

ehm, i want to find the centerpoint trueout the pipe from start to finish, like the exact route, so i can reuse it in civil3d. so i have the centerline of the pipeline from a single click, i understand? [image]

No, there is no such method. Basically, everything in Sketchup consists of edges and the faces they bound. So it will be quite difficult to determine which edges make up the tube and in what order… Some ideas: Edges can be part of (defined by) ArcCurves, for which there is a method for determining…

So i have been trying prob 10 different ways to get this done, ray tracing, edges, wireframe and what not. But i cant seem to get happy with the results, dosnt really work.. i think im might fucking it up myself haha

one of my approches way like, creating guide points from the ray trace, then making those “point clysters” in to one group, making a senterpoint from each selected groupes and then creating a line form start to finish from the points.. but i dosnt work on all models…

I’m maybe this can help: [image] Hobby mihai.s Gallery ms C2C Line 2P (v1.0.1) - Extension Warehouse link is a useful extension for quickly drawing centerlines or complex guide lines. It works based on pairs of points: Select the first two points → The exte…

I guess you want to use Ruby API, so I moved the topic to that category…

yeah, the api. Just cant wrap my head around what would accualy work on all models, not matter what. tried to diffent codes in one, like first finding all edges then doing the ray trace arpudn the model with x-sections.. but cant seem to make it work properly

There are multible selections like this, for this to work the best on pipes u can use the 3 point selection to accualy get the middle point of a circle. But i want to automate this process from the begnning. [CenterLine Tool video]

Need help: compute centerline through a 3D model

Developers Ruby API

bmike January 31, 2026, 5:50pm 7

I’m maybe this can help:

Topic		Replies	Views
How te select the middle of an object in space SketchUp	19	6719	August 31, 2018
Create centerline inside pipes SketchUp	5	200	April 6, 2025
Finding the center of a circle when it has been exploded then regrouped SketchUp advice	18	2034	September 10, 2021
How can I create a center line between two curved lines? SketchUp	7	2886	August 13, 2019
Set Center Point Pro	9	9294	November 8, 2016

Need help: compute centerline through a 3D model

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