Deviations in width of hallway

Please feel free to ask other members for help with certain projects
Post Reply
User avatar
landmeterbeuckx
V.I.P Member
V.I.P Member
Posts: 1287
Joined: Tue May 01, 2012 5:19 pm
10
Full Name: Lieven Beuckx
Company Details: Studiebureau Beuckx
Company Position Title: Owner
Country: Belgium
Linkedin Profile: Yes
Has thanked: 114 times
Been thanked: 361 times

Deviations in width of hallway

Post by landmeterbeuckx »

Hi,
I have a project where there is a hallway scanned but there is a tolerance of 1.83m between points on both sides of the hallway.

Plastering wasn't done up to standards so there are places where it is 1.82m and others 1.84m

How would i tackle this so i can color my pointcloud green where it is fine but red where it is over tolerance.
LSBbvba
Surveying services - 3D Laserscanning
Tel : +32477753126
www.lsbbvba.be
[email protected]
User avatar
GCFdesign
V.I.P Member
V.I.P Member
Posts: 260
Joined: Wed Sep 04, 2019 7:23 am
3
Full Name: Gary Fellows
Company Details: GCF Design Limited
Company Position Title: Director
Country: United Kingdom
Linkedin Profile: Yes
Has thanked: 50 times
Been thanked: 29 times

Re: Deviations in width of hallway

Post by GCFdesign »

Navisworks could likely help.

Otherwise you could create the hallway as a solid, populate that solid with points within CC, then compare clash, or likely clash your points against the desired hallway solid within CC.
Regards,

Gary Fellows

Director

GCF Design Limited

https://gcfdesign.wixsite.com/gcfdesign
User avatar
Scott.Warren
V.I.P Member
V.I.P Member
Posts: 326
Joined: Tue Jan 30, 2018 3:14 pm
4
Full Name: Scott Warren
Company Details: WSP Canada
Company Position Title: Project Manager - Geomatics Engineer
Country: Canada
Linkedin Profile: Yes
Location: Dartmouth, Nova Scotia, Canada
Has thanked: 33 times
Been thanked: 94 times
Contact:

Re: Deviations in width of hallway

Post by Scott.Warren »

Creating a local datum where its X-Y plane matches the design/average plane of your wall is a way I've done it. Then your Z axis becomes your deviations from a expected value.

Not ideal, but it can work. Just need to change your elevation banding to meet the deviation your looking for. obviously doesn't work on non-planar surfaces so well.

Cyclone 3DR is my weapon of choice for something like this, if I had the license :lol: .
max72
V.I.P Member
V.I.P Member
Posts: 820
Joined: Tue Feb 26, 2013 9:32 pm
9
Full Name: Massimo De Marchi
Company Details: Massimo De Marchi
Company Position Title: freelancer
Country: Italy
Skype Name: massimo_de_marchi
Has thanked: 13 times
Been thanked: 32 times
Contact:

Re: Deviations in width of hallway

Post by max72 »

Cloudcompare offers some tools.
You might create a ideal model and do a point to mesh distance, but I'm not sure it fits your needs.
If you want to check the distance between two walls, and they are straight, you can orient the hallway along an axis, cut the two walls in two different datasets and do cloud to cloud a distance, keeping only on the the vectors. Say you orient the hallway along y axis, you perform distance check in x direction only.
You can then filter the results.

Massimo
ing. Massimo De Marchi - +39 347 32 17 049 - www.studiodemarchi.net
User avatar
GCFdesign
V.I.P Member
V.I.P Member
Posts: 260
Joined: Wed Sep 04, 2019 7:23 am
3
Full Name: Gary Fellows
Company Details: GCF Design Limited
Company Position Title: Director
Country: United Kingdom
Linkedin Profile: Yes
Has thanked: 50 times
Been thanked: 29 times

Re: Deviations in width of hallway

Post by GCFdesign »

It shall also depend on where the idealised hallway is intended to exist.
In terms of analysis, such an idealised hallway surface would need to be created and located, such that your captured scan points are then subsequently analysed to the desired surface.
Regards,

Gary Fellows

Director

GCF Design Limited

https://gcfdesign.wixsite.com/gcfdesign
sim.herrod
V.I.P Member
V.I.P Member
Posts: 312
Joined: Thu Jan 14, 2016 12:26 pm
6
Full Name: Simeon Herrod
Company Details: Terra Measurement Limited
Company Position Title: 3D Data Manager
Country: UK
Linkedin Profile: No
Has thanked: 51 times
Been thanked: 78 times

Re: Deviations in width of hallway

Post by sim.herrod »

Scott.Warren wrote: Fri Mar 25, 2022 1:38 pm Cyclone 3DR is my weapon of choice for something like this, if I had the license :lol: .
3DR is what I'd use. Fortunately, we have a license. :)
User avatar
landmeterbeuckx
V.I.P Member
V.I.P Member
Posts: 1287
Joined: Tue May 01, 2012 5:19 pm
10
Full Name: Lieven Beuckx
Company Details: Studiebureau Beuckx
Company Position Title: Owner
Country: Belgium
Linkedin Profile: Yes
Has thanked: 114 times
Been thanked: 361 times

Re: Deviations in width of hallway

Post by landmeterbeuckx »

I'm trying with Cloudcompare now. NBut i'm no expert on CC. Must invest some time for it.
LSBbvba
Surveying services - 3D Laserscanning
Tel : +32477753126
www.lsbbvba.be
[email protected]
User avatar
Leandre Robitaille
V.I.P Member
V.I.P Member
Posts: 414
Joined: Sat Aug 03, 2019 1:53 am
3
Full Name: Leandre Robitaille
Company Details: Cima+
Company Position Title: Civil Technician - Surveyor
Country: Canada
Has thanked: 49 times
Been thanked: 141 times

Re: Deviations in width of hallway

Post by Leandre Robitaille »

I would use Autocad. Rotate the pointcloud so the wall you want to study is flat to the general UCS and change the collors to elevation, tune the colors. The X Y axis of the UCS would be your virtual plane that you would use as reference. This might involve a bit of 3d manipulation autocad skills to get a good setup tough.

Other option is to create a 3d solid as a reference in autocad and measure offset with a cloudcompare by computing distances. In autocad, units in meter, draw a line at the reference point and extrude it following the Z axis. Export that as a .sat file (in other export) you can then import the .sat in cloudcompare and clash it with the pointcloud.

I do however prefer the autocad elevation for this but it might be harder to do for someone not used to those type of 3d manipulations in autocad.
Good luck!
VXGrid
V.I.P Member
V.I.P Member
Posts: 351
Joined: Fri Feb 24, 2017 10:47 am
5
Full Name: Martin Graner
Company Details: PointCab GmbH
Company Position Title: Research and Development
Country: Germany
Linkedin Profile: No
Has thanked: 115 times
Been thanked: 111 times
Contact:

Re: Deviations in width of hallway

Post by VXGrid »

landmeterbeuckx wrote: Fri Mar 25, 2022 12:56 pm Hi,
I have a project where there is a hallway scanned but there is a tolerance of 1.83m between points on both sides of the hallway.

Plastering wasn't done up to standards so there are places where it is 1.82m and others 1.84m

How would i tackle this so i can color my pointcloud green where it is fine but red where it is over tolerance.
Mh you can try to achieve that with PointCab Origins:
Activate the delta tool and the PDF export when doing a section.
Generate the section on the left wall, extend the bounding box over the right wall, set the colours and bounding boxes accordingly, rinse and repeat for the other side.
In the PDF on the last page there is in addition a % of how many points are within the generated bins.


Guess it could look like this:
(In my case everything between [4,3; 4,38) is red and everthing between [4,38; 4,39) is green.
deltaOrigins.png
Personally I think I would use red and blue - not red and green ;)
You do not have the required permissions to view the files attached to this post.
User avatar
landmeterbeuckx
V.I.P Member
V.I.P Member
Posts: 1287
Joined: Tue May 01, 2012 5:19 pm
10
Full Name: Lieven Beuckx
Company Details: Studiebureau Beuckx
Company Position Title: Owner
Country: Belgium
Linkedin Profile: Yes
Has thanked: 114 times
Been thanked: 361 times

Re: Deviations in width of hallway

Post by landmeterbeuckx »

VXGrid wrote: Mon Mar 28, 2022 12:29 pm
landmeterbeuckx wrote: Fri Mar 25, 2022 12:56 pm Hi,
I have a project where there is a hallway scanned but there is a tolerance of 1.83m between points on both sides of the hallway.

Plastering wasn't done up to standards so there are places where it is 1.82m and others 1.84m

How would i tackle this so i can color my pointcloud green where it is fine but red where it is over tolerance.
Mh you can try to achieve that with PointCab Origins:
Activate the delta tool and the PDF export when doing a section.
Generate the section on the left wall, extend the bounding box over the right wall, set the colours and bounding boxes accordingly, rinse and repeat for the other side.
In the PDF on the last page there is in addition a % of how many points are within the generated bins.


Guess it could look like this:
(In my case everything between [4,3; 4,38) is red and everthing between [4,38; 4,39) is green.
deltaOrigins.png

Personally I think I would use red and blue - not red and green ;)
I'll give it a shot Martin, having an Origins license of course ;)
LSBbvba
Surveying services - 3D Laserscanning
Tel : +32477753126
www.lsbbvba.be
[email protected]
Post Reply

Return to “Request Help With Projects”