Under the Inspect tab, there is tool called "Inquire Element". Change your options to "keypoints" and select the point of interest. You'll see a readout of its xyz points relative to the assembly origin. If you're using ST7, you can select the "Measure" tool and again you'll get a readout of xyz values. Both options do the same thing; display of results just slightly different.
Hope this helps.
If you have used ExpressRoute to create the tubes, use the Bend Table in the Express Route environment to output this info.