from pygeo import * v=display(scale=7) zp1=zFreePoint(1,1,color=BLUE) zp2=zFreePoint(-1,-2,color=WHITE) zp3=zPoint(-1,-3,color=WHITE) zp3a=zFreePoint(1,-3,color=WHITE) zcircle1=zCircle(zp1,zp2,zp3,color=BLUE) zcircle2=zCircle(zp1,zp2,zp3a,color=BLUE) zp4=zSlider(zcircle1,color=BLUE) zcircles=zCircles(zcircle1,zcircle2,color=BLUE) mobFromFixed(zp1,zp4,PI,[zcircles,zp4],color=RED) v.pickloop()