Down sampling

[Anonymous]

Is there a way or going to be a way to down sample at export? Every 3rd point or reduce by half.

[ryan.frenz]

Hi Justin,

At the moment, the way to do this is via the Unified RCS export.  Selecting this export type will display a dialog where you can set a resolution for point reduction.  This value (with some other logic) is then used to determine which points to export.

This style of reduction should be better than a simple down-sample in most cases (as it more-intelligently selects the points to keep).  At the moment it does not apply to PTS or E57 export, although we are considering that for a future release.

I'm interested in your thoughts on the above, specifically if there's a case in which a simple down-sample would be better than a unify.

Thanks for using ReCap pro.

Ryan

[jarrodbaumann7604]

To date I have used the Unify Scan settings and refined the Grid of points with great success.  I find that on larger data sets it is very efficient to have a unified scan that is refined to say 5mm and another for higher detail modeling that is refined to 1mm.

Users with less capable Revit workstations can use the 5mm point cloud to layout as-built walls etc and we can switch to the 1mm when detailing finer portions of the structure.  One "tip" I can offer is to set your origin properly in the .RCP project before exporting any unified scans.  This way they retain the same origin and can be swapped out on the fly in Revit using "Reload From" without the scan moving in your Revit project.

[foutjm]

is there a way to create a unified RCS file of just one Region at a time?

other than doing a saveas and then deleting the Regions you dont want?

very new to Recap and point clouds. 

i tried just having the one region visible and unifying and it brought in the other half but put it at a different elevation.wierd. 

[ryan.frenz]

Hi,

You should be able to export only the visible points to a unified RCS (as you are trying).  Can you make sure you're using the latest version from autodesk.com/recap?  There were a number of bugs fixed in this area in the last year.

Ryan

[foutjm]

I can get them to export using Limit boxes,  View states and Regions combined.

i may have been confusing myself.

Running Recap pro licensed on one machine, recap pro trial on another and trying to double team it to get a project out.

learning as i go.

so what is the prescribed workflow? should just isolating a Region be able to send the unified file out? i had a large amount of crashes

on the trial version.

also while we are here, have any tips and tricks for getting rid of Noise at the backend besides unifying?

[foutjm]

so the problem still exists.

i have 9 scan regions. i edit the limit box to exclude all but one region. turn off the other regions, and create a view state. everything looks fine.

i create another one for the next region and when i click to go back to the first view state it turns on the last 3 regions. they are outside the limit box still and when i do an export of a unified scan to RCS it includes those regions. even if i turn them off again before export.

bug?

[yan.fu]

It should be a bug related to limit box when restoring a view state. Could you try to re-edit the limit box before export?