Delete points from mirror

Discuss all Trimble Realworks related issues here.
Post Reply
jaredmatthews
I have made 90-100 posts
I have made 90-100 posts
Posts: 95
Joined: Sun Sep 13, 2015 7:19 pm
Full Name: Jared
Company Details: Sova Surveys Limited
Company Position Title: Director
Country: UK
Skype Name: jaredmatthews
Linkedin Profile: Yes
Contact:

Delete points from mirror

Post by jaredmatthews » Tue Oct 25, 2016 9:12 pm

Hi All.

I have recently made the switch from Scene to Realworks.

I am still finding my feet with the software. How do you PERMANENTLY remove scan points from a scan?

I have reflected points in a mirror that are projecting into the room next door. If I register the the scans together, then the points in the next room will be exported as such.

I know you can segment scanpoints in order to view scans better when matching in cloud to cloud registration mode, but once the two clouds are registered together, the segmented points are refreshed.

I basically want to delete the points permanently from the one scan, and then register it to the other scans.

See attached image for reference
mirrored scans.png
You do not have the required permissions to view the files attached to this post.

apjokr
I have made 70-80 posts
I have made 70-80 posts
Posts: 74
Joined: Thu Jun 11, 2015 9:58 am
Full Name: Robert
Company Details: Construsoft
Company Position Title: Support engineer
Country: Hungary
Linkedin Profile: Yes

Re: Delete points from mirror

Post by apjokr » Wed Oct 26, 2016 9:26 am

Hi Jared,

At the Production module, you have the Edit menu>Delete points from TZF scans
but
My suitable workflow is to first register the pointcloud,
from the Project cloud>sampling by scan
segmentation for those scans
the clean segmentated cloud objects can be merged into one cloud (ctrl+m)

in this way i have the requested area without noise.
If you use targaetless registration, probably the mirror-noise will have affect on the calculation so try the first one.

User avatar
Phil Marsh
Administrator
Administrator
Posts: 2107
Joined: Sun Aug 12, 2007 2:28 pm
Full Name: Phil Marsh
Company Details: Laser Scanning Forum Ltd
Company Position Title: Technical Director
Country: UK
Skype Name: phil.h.marsh
Linkedin Profile: Yes
Location: Barnsley, UK
Contact:

Re: Delete points from mirror

Post by Phil Marsh » Wed Oct 26, 2016 10:39 am

Could you view the individual scan from the laser scanner then window around the mirror?

apjokr
I have made 70-80 posts
I have made 70-80 posts
Posts: 74
Joined: Thu Jun 11, 2015 9:58 am
Full Name: Robert
Company Details: Construsoft
Company Position Title: Support engineer
Country: Hungary
Linkedin Profile: Yes

Re: Delete points from mirror

Post by apjokr » Wed Oct 26, 2016 11:37 am

yes, correct.
the same was the procedure when we did a scan in a shoe-store.
each registered scanposition can be created as a new cloud object, and the unwanted area can be fenced out.
then you can use/export each scanposition divided, or merged together, whatever the customer needs.

back in the days it was useful to have scanpositions divided in the modeling software due to the hardware-possibilities.

Christophe21
I have made 10-20 posts
I have made 10-20 posts
Posts: 19
Joined: Tue Nov 08, 2016 10:12 am
Full Name: Christophe
Company Details: AB VD
Company Position Title: Technician
Country: France
Linkedin Profile: No

Re: Delete points from mirror

Post by Christophe21 » Fri Dec 02, 2016 12:53 am

apjokr wrote:yes, correct.
the same was the procedure when we did a scan in a shoe-store.
each registered scanposition can be created as a new cloud object, and the unwanted area can be fenced out.
then you can use/export each scanposition divided, or merged together, whatever the customer needs.

back in the days it was useful to have scanpositions divided in the modeling software due to the hardware-possibilities.
Huh THANKS !
This help me a lot !

Can we batch this in order to automatically create object from each (registration) group ?
(and then let the processor do his job a few days ...)

For example you have several building with numerous room with around 3 or 4 station each room and you want to create a cloud objet for each room in production

jaredmatthews
I have made 90-100 posts
I have made 90-100 posts
Posts: 95
Joined: Sun Sep 13, 2015 7:19 pm
Full Name: Jared
Company Details: Sova Surveys Limited
Company Position Title: Director
Country: UK
Skype Name: jaredmatthews
Linkedin Profile: Yes
Contact:

Re: Delete points from mirror

Post by jaredmatthews » Mon Feb 27, 2017 4:04 pm

apjokr wrote:yes, correct.
the same was the procedure when we did a scan in a shoe-store.
each registered scanposition can be created as a new cloud object, and the unwanted area can be fenced out.
then you can use/export each scanposition divided, or merged together, whatever the customer needs.

back in the days it was useful to have scanpositions divided in the modeling software due to the hardware-possibilities.
Bumping this post, as I STILL have no clue how to do this.

Could someone give a more detailed step-by-step of how this is achieved?

Muleymuel
I have made 50-60 posts
I have made 50-60 posts
Posts: 53
Joined: Thu Oct 27, 2016 10:02 am
Full Name: Sam Lynas
Company Details: PCL
Company Position Title: Surveyor
Country: UK

Re: Delete points from mirror

Post by Muleymuel » Thu Sep 21, 2017 9:45 am

Jared,

I feel your pain. Surely there must be an easy way to remove unwanted points from each TZF file BEFORE registering.

User avatar
Vincent DENIS
V.I.P Member
V.I.P Member
Posts: 160
Joined: Fri Nov 16, 2012 9:25 am
Full Name: Vincent Denis
Company Details: GEOMESURE
Company Position Title: Technical Sales Engineer
Country: France
Linkedin Profile: Yes
Contact:

Re: Delete points from mirror

Post by Vincent DENIS » Thu Sep 21, 2017 10:32 am

Hi,

you can check this post : viewtopic.php?f=170&t=12247

Muleymuel
I have made 50-60 posts
I have made 50-60 posts
Posts: 53
Joined: Thu Oct 27, 2016 10:02 am
Full Name: Sam Lynas
Company Details: PCL
Company Position Title: Surveyor
Country: UK

Re: Delete points from mirror

Post by Muleymuel » Thu Sep 21, 2017 10:52 am

Thanks Dennis.

Extracting points from scan explorer to then delete from TZF is still needlessly time-consuming and complex. This method and would not allow for deletion of points behind glass, for example.
Sampling each individual station by scan, one by one, is no better.
Both methods are in Production Mode, AFTER registration meaning that erroneous points could still affect the registration process.

It makes no sense. Why is it so difficult / not possible to delete points from TZF prior to registration?

User avatar
Vincent DENIS
V.I.P Member
V.I.P Member
Posts: 160
Joined: Fri Nov 16, 2012 9:25 am
Full Name: Vincent Denis
Company Details: GEOMESURE
Company Position Title: Technical Sales Engineer
Country: France
Linkedin Profile: Yes
Contact:

Re: Delete points from mirror

Post by Vincent DENIS » Thu Sep 21, 2017 11:09 am

I'm not agree with you!

Extracting point from scan explorer can be (and it's better) before registration! And for glasses, i delete all inside the class

On field, you often know what station will pose problems (windows between room, mirror ...), personally I make a sketch and i note what stations I should clean up.

However, this procedure is not user friendly, i'm agree. I just hope Trimble will fix this on next update

Post Reply

Return to “Trimble Realworks”