Searched refs:tanTop (Results 1 – 1 of 1) sorted by relevance
816 const float tanTop=std::tan((decorAltAngle+decorAngleShift)*M_PI_180f); in getOpacity() local818 y_img_1=(tanAlt-tanBot)/(tanTop-tanBot); // Y position 0..1 in visible image height from bottom in getOpacity()