Question: How to adjust width and height of animated gif file


When i export an animation as a gif the dimensions are (by default it seems) 400x400 pixels (w x h).

But my slide show requires a dimension of 1920 x 1080 pixels.

How to I tell maple to export a gif of predefined dimensions?

I can manually adjust the dimensions of the animation by grabbing a corner and pulling it right and down and then export it, but its hit and miss.

Here is an example animation written by Kitonum

rho := 0.1:
w0 := 2:
sys := a->[diff(x(t),t) = y(t),diff(y(t),t) = -2*rho*y(t) - w0^2*(x(t)+a)];
P:=a->DEplot(sys(a), [x(t),y(t)], t = 0 .. 20-2*a, x=-2..2, y=-1.9..1.7, [[x(0) = cos(a)-a, y(0) = sin(a)]], scene = [x(t),y(t)], linecolor=blue, numpoints=1000):
plots:-animate(plots:-display,['P'(a), size=[600,300]], a=-0.7..1.4, frames=90);



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