The Determination of the threedimensional distribution of joint - systems is necessary for forecasting and analysis of the stability, of water- or gaspenetration and of more parameters in mining and rock mechanics. The measurements are performed by analytical instrumentation with on- line analysis and interpretation and graphical enhancement by CAD systems.
H. Rüdenauer, H. Rüdenauer,
"Geological structure measurement in a CAD environment", Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 139541 (1 August 1990); doi: 10.1117/12.2294388; https://doi.org/10.1117/12.2294388