Question: use maple animate command to draw a circle as a point plot

I want to draw a circle in 2D as a point plot, given a center y1 and radius r1 using the animate command. 
I can do this for other functions, and I can create a plot of a circle, but I am doing something wrong when I attempt to combine them.  

Here is my code

with(plots):

y1:=<-1,1>;
r1:=15.;

This plot command for the circle works.  

plot([y1(1)+r1*cos(t),y1(2)+r1*sin(t),t=0..2*Pi],color=blue); [n];

But this attempt to animate it does not!!!

plots:-animate(plot,([[y1(1)+r1*cos(t),y1(2)+r1*sin(t)], t=0..T,color=blue]), T=0..2*Pi); plot([y1(1)+r1*cos(t),y1(2)+r1*sin(t),t=0..2*Pi],color=blue);

Thanks

Please Wait...