Point cloud

I don't know why the line numbers are wrong, but I'm getting following warnings:

/.../pcl/gpu/containers/src/initialization.cpp:100:86: warning: unused parameter 'device_attribute' [-Wunused-parameter]
    template <class T> inline void getCudaAttribute(T *attribute, CUdevice_attribute device_attribute, int device)
                                                                      

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What's your browser and operating system? (Copy/paste the output of https://www.whatismybrowser.com/)

Firefox

What is the problem?

There does not seem to be a way to get the z-coordinate of a point in orthophoto.

What should be the expected behavior?

The measure