assign() deprecated warning

[usaps]

If on OpenScad you get a warning for the assign()

just change if with this code:

union () { for (i=[1:res]) { point1=involute (base_radius,start_angle+(stop_angle - start_angle)*(i-1)/res); point2=involute (base_radius,start_angle+(stop_angle - start_angle)*i/res); { side1_point1=rotate_point (centre_angle, point1); side1_point2=rotate_point (centre_angle, point2); side2_point1=mirror_point (rotate_point (centre_angle, point1)); side2_point2=mirror_point (rotate_point (centre_angle, point2)); { polygon ( points=[[0,0],side1_point1,side1_point2,side2_point2,side2_point1], paths=[[0,1,2,3,4,0]]); } } } }