CloudCompare forum

Hi everyone,

I'm new in the forum. CC is an amazing software guys!

I'm trying to draw the cross section of a retaining wall scanned using a laser scanner (the one that you can see in the "screen_1" attached).

From the entire points cloud I cut out a smal portion rapresenting the transversal section of the wall that I need to retrace (see the "screen_2" attached).

I just want to reproduce the wall in sketchup pro 2020, are there plugins that can help me?

Right now the only method that i found is to create a polyline using Extract Section command and than import it in sketchup.
The problem is that I need to change coordinate system and makes it perpendicular to the plane containing the section of the wall in order to correctly draw the polyline.

So, is there a way to change coordinate system and makes it paralel to the normal vector of a plane (see the "screen_2" attached).
So that I can draw a polyline on the plane that I have create using Extract Section (in Segmentation tool).

Thank you all.

Indirectly yes: if you right click on the plane (in the DB tree) and choose 'Align camera', you'll see in the Console the 'matrix ' that makes the plane parallel to the screen. You can the copy this matrix and paste it in the 'Edit > Apply transformation' tool (select your cloud first).

This will rotate the cloud so that the plane normal vector is parallel to Z.

Thank you very much Daniel.

I've also two other question:

1) I need to vectorialize the profile of the section. Drawing a polyline using "trace polyline command" let me build a 3D polyline but I need a 2D polyline
instead. A good tool is the "extract section" but when I right clic with the mouse to move over the cloud point the comand stops tracing and I can't
snap on the previous line.

I find a time consuming "2 steps routine" solution that is to project points on the best fitting plan and than extract a 2D raster image of the point
cloud on which I draw my 2D polyline. Is there a way to do it faster?

I wonder to know if is there an easier way to do it, for example, is it possible to draw a polyline over a plan without snapping to the points of the
cloud? this way would allow me to be faster then before. Is there a short cut to do so? I tried different combinations (such as shift key + pick on the
plan under the points cloud) but it doesn't works.

2) Do you know a good plugin that connect CloudCompare to SketchUp, if is there?

Thank you very much

The automatic extraction of the profile is not usefull in this case, I need something more accurate.

Thank you

1) You can use the scissors tool: define your 2D polyline then 'save it' (it will save the polyline in the DB tree).

2) Nope

Thank you very much Daniel