CLV of the Lyα Q/I line-center signals calculated in several CTR models. Top left panel: case of the plane-parallel FAL-C model (﹩a=\infty ﹩) with increasing mean field strengths ﹩\bar{B}﹩. Top right panel: unmagnetized CTR models (﹩\bar{B}=0\,{\rm{G}}﹩) with various corrugation parameters a. The black dotted line shows the CLV of the original FAL-C model, ﹩(\infty ,0)﹩. Bottom left panel: CTR models with a = 5 and increasing ﹩\bar{B}﹩ values. Bottom right panel: CTR magnetized model (﹩\bar{B}=50﹩ G) with various corrugation parameters a. The step between the curves corresponding to different ﹩\bar{B}﹩ values is 5 G, while the step between the curves with different corrugation parameters a is 2.