Can you quote a specific passage which implies that no ComputePointMap is required? When I search for PointMap I only find this sentence:
The reprojection of points in cmdComputePointMap is also done on the host PC to save transfer time.
which explains that ComputePointMap is executed on the host, not the device.
Are you talking about the device or the host? The disparity map is constantly updated on the device (visible in NxTreeEdit) and streamed to the host. The host does not automatically update the disparity map. Instead, the received disparity maps are buffered until you call ComputeDisparityMap, which will update the Images/DisparityMap node with the most recently received disparity map. Then you can call ComputePointMap.
So unless you are connecting directly to the device via NxLibRemote, the sequence of operations to obtain a point map are:
For trigger mode Software, the XR behaves like any ordinary stereo camera:
Capture (alternatively: Trigger, Retrieve)
ComputeDisparityMap
ComputePointMap
For trigger mode Continuous, you do not explicitly need to trigger the camera, so the sequence simplifies to:
ComputeDisparityMap
ComputePointMap
Please note that this last command sequence does not update any image nodes!
If you are connecting directly to the device via NxLibRemote: please do not do that (generally).
Again: are the nodes on the device or the host?
If on the device: you should generally not need to care about the device. You should only interact with the host-side NxLib and only examine the device-side NxLib in NxTreeEdit when sonething is seriously wrong. The command nodes on the device NxLib are created and maintained by the host NxLib.
If on the host: I do not know what application you are using or what commands these nodes are executing, so I cannot tell you how to handle them.
Let me know if that helped or if you have any more questions.