point picking tool: Points appear too big

[Tanay]

I need to measure the distances between two point clouds but the "Select 2 Points..." button in Point Picking menu plots the red coloured points, which are too big to see the actual points of clouds to be measured. I even measured the diameter of one such point and it appears to be ca. 28 mm.
How can I reduce its size? I am not able to pick the required points.

[daniel]

Can't you zoom in? The point label has a fixed size relative to the screen (not the cloud).

[Tanay]

Check these screenshots:

Image 1: with increased Default Point Size


Image 2: with decreased Default Point Size


Image 3: sometimes the red spheres appear transparent and I can see & pick up the desired points, with a bit amount of contortion. I can continue with such condition but it is not the permanent case. check earlier images; default point size in image1 and image3 is same. You can figure out the diameter of those red spheres by the distance between measured points in given clouds.


Image 4: and few rare times, its just a simple operation.

[daniel]

Weird indeed! I'll look at this asap.

[daniel]

Oh, it was in fact due to the 'perspective' mode. The closer you are from an object, the bigger it is. And this was also true for 2D label markers...

I tried to compensate for this (but it's not that easy). You can try the new beta version and give me some feedback;
http://www.cloudcompare.org/release/Clo ... bin_x64.7z

[Tanay]

Thanks for the prompt action. I have used the Point Picking tool in version 2.8.0 for 63 times and it did not have same glitch.
I even changed the default point size but it was working as it supposed to be!