Is it possible to determine the centreline of a pipe for example from imported point cloud data within Revit? I have been playing with the Sastrugi nodes, which in certain circumstances are great, however, if l have the following scenario, the best fit is not the centreline of the pipe. [image]

That’s not good. :open_mouth: I am guessing you have you tried the following: Restart Revit, and therefore Dynamo. Use the Open in Manual Mode toggle when opening the file. Checked you haven’t saved the 1.3 version graph in 2.0 format by mistake. (open the dyn as a txt file and look at the format…

Hi Ewan, I have re-created it and tried again the double up of your node: [image] It works on occasion. Most of the time no points are selected as per image. Bloomin’ Dynamo. :wink:

The script recreated had been working fine upon a given location of point cloud and now returns nothing. Dynamo is so fickle which renders it unreliable most of the time.

Sadly l shall stop. One minute it works, next it doesn’t, then if it works if returns a completely incorrect diameter pipe etc. ahhhh :joy:

[image] Ewan_Opie: Try this (Dynamo - Sketch Edition) :smile: 90% of my best stuff starts in this version of ‘Dynamo’

[image] Gcf_Design: One minute it works, next it doesn’t, then if it works if returns a completely incorrect diameter pipe etc. ahhhh Try running this via Dynamo Player, or closing without saving the graph between runs. It sounds as if you’re up against an element binding issue.

Here is an example workflow for when you have a decent length of pipe scanned. :slightly_smiling_face: (I will see if I can find some time this week to test a partially scanned pipe as well) [ezgif-5-8fbe6479dbf2] [Pipe%20from%20Cloud]

For incomplete pipe point information (vertical pipes only)… [Pipe%20from%20Pointcloud%20incomplete%20vertical%20pipe] [image]

Hi Ewan The Topic is Awesome. I tried but get some issues please help me out I have linked the point cloud and selected the pipe via section box in 3D view and downloaded the sastrugi Package and used Pointcloud select points in view node [image] after this, a message box appears stating [image…

Hi @dineshsubramani This node has been updated (issue found previously) and is available for download from my website. Hopefully replacing the dyf in your packages folder solves your issue. Sastrugi Package - Updated This update will be included in the v2.0 release. (date pending)

How to Determine Centreline of a Pipe from Point Cloud

Revit

jacob.small July 27, 2019, 3:45pm 20

90% of my best stuff starts in this version of ‘Dynamo’

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How to Determine Centreline of a Pipe from Point Cloud

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