size 400,400
xrange -10,10
yrange -10,10
grid 1,1,grey
linewidth 3
strokecolor blue
slider -2*pi,2*pi,260,28,angle active degree,blue arrow
arrow 0,0,8,0,8,blue
fillpattern diamond
angle 0,0,2,0,0,blue
killslider
strokecolor red
slider -2*pi,2*pi,260,28,angle active radian,red arrow
arrow 0,1,8,1,8,red
fillpattern dot
angle 0,1,2,0,0,red
