convert all tabs to spaces

src/libraries/scad-utils/README.md

@@ -78,4 +78,3 @@ example:
     module arrow(l=1,w=.6,t=0.15) {
         mirror_y() polygon([[0,0],[l,0],[l-w/2,w/2],[l-w/2-sqrt(2)*t,w/2],[l-t/2-sqrt(2)*t,t/2],[0,t/2]]);
     }
-

src/libraries/scad-utils/spline.scad

@@ -108,6 +108,3 @@ for(t=[0:0.05:len(__s3)]) translate(spline(__s3, t)) {
 
 translate([0,0,9]) for(t=[0:0.025:len(__s3)])
     multmatrix(spline_transform(__s3,t)) cube([1,1,0.1],center=true);
-
- 
-        

src/libraries/scad-utils/trajectory_path.scad

@@ -86,4 +86,3 @@ function trajectories_length(trajectories, i_=0) = i_ >= len(trajectories) ? 0
 function trajectories_end_position(rt,i_=0,last_=identity4()) =
   i_ >= len(rt) ? last_ :
   trajectories_end_position(rt, i_+1, last_ * se3_exp(rt[i_]));
-