Point Cloud Plugin

[phoboz]

@cedmayer

Hey, First of all, thanks a lot for this great plugin! It opens so many possibilities.

Hi , thanks for the feedback!

@cedmayer

I have two questions: I want to create a runtime point cloud loader. The point clouds are located in an absolute coordinate system as I also introduce overlapping vector data. The problem I have to solve is, how to spawn the camera at the location of the loaded point cloud. Is there a possibility to extract e.g. the center point of a cloud / the first row of the file to set the actor location according to these coordinate? Using something like “center mass” did not work as the origin of the point cloud is always 0,0,0.

Try using the GetBounds function of the Point Cloud object.

@cedmayer

The second question is about creating a measurement tool for the user. For this I need to build collisions. But even when setting an accuracy of 10 cm, the collision shows an offset to the points, is that intended?

Very possible. This parameter determines the maximum deviation distance of the collision mesh from the actual point.
I think a better approach here would be to use the dedicated point cloud LineTrace function (there are single and multi variants).
UPointCloudBlueprintLibrary::LineTraceXXXXXX - will consider all point cloud components in the level (Blueprint equivalent - Line Trace (Multi) For Point Cloud)
UPointCloud::LineTraceXXXXXX - will only consider that one point cloud object (for Blueprint equivalent, drag a wire from the Point Cloud object and use Line Trace XXXX)

@cedmayer

Further, is there a tutorial how to create a measurement function or is it planned to be included in a future release?

I’m afraid there is no dedicated measuring tool at this time - I’ll add it as a feature request to the list, thanks!