To get "Grids" available in the 3D viewer, grids must be exported to at least one of the ifc files used in the 3D model. During processing, StreamBIM will identify the grids and lay them out as a separate layer "Grids" that will be placed at the bottom of the layer view.
To visualize the Grids in the 3D model, they must be switched "on":
When a "clip plane" is created, the axes will follow the clipped plane
The symbols of the different axes will follow the "camera" so you constantly see which axes it is.
Here is an example of how to measure between the centre of a pipe to axis:
Select "measure plane" at the measurement tool, and then click on the pipe.
The distance between the centre of the pipe and the B-axis is 696mm.