any one of the three angles that a line in space makes with the three positive directions of the coordinate axes. Usually given as α, β, and γ with respect to the x-, y-, and z-axes
Examples of 'direction angle' in a sentence
direction angle
Vibration parameters mainly encompass swing angle, swing frequency, translation frequency, translation direction angle, and amplitude.
Zhanfu Li, Xin Tong, Yunfei Qiu 2017, 'The research of particle sieving under a creative mode of vibration', Journal of Vibroengineeringhttps://www.jvejournals.com/article/18693. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Besides, the linear cracks can be further classified into transversal and longitudinal cracks according to the direction angle.
Li Li, Lijun Sun, Guobao Ning, Shengguang Tan 2014, 'Automatic Pavement Crack Recognition Based on BP Neural Network', Promet (Zagreb)http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/1477. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)