Placing points equidistantly along an Archimedean spiral
问题 I have an Archimedean spiral determined by the parametric equations x = r t * cos(t) and y = r t * sin(t) . I need to place n points equidistantly along the spiral. The exact definition of equidistant doesn't matter too much - it only has to be approximate. Using just r , t and n as parameters, how can I calculate the coordinates of each equidistant point? 回答1: You want to place points equidistantly corresponding to arc length. Arc length for Archimedean spiral (formula 4) is rather complex s