space

an array which determines the spacing of take-off angles between the minimum and maximum values for each ray group in the array ray. For space=1, the take-off angles will be equally spaced; for space>1, the take-off angles will be concentrated near the minimum value; for 0<space<1, the take-off angles will be concentrated near the maximum value (default: 1; however, space=2 for a reflected ray group if specified as L.2 in the array ray)