The technology of determining the external shape of the coolig tower, using a photogrammetric method along tangent line of the observation radiuses with the real shape are presented. The determination procedure of the theoretical shape is discribed in the project. Some basic technologies are presented and the examples of their application in chosen polish cooling towers of various size are given.
"Determining the real shape of hyperbolic cooling tower", Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 139547 (1 August 1990); doi: 10.1117/12.2294394; https://doi.org/10.1117/12.2294394