Instead, we leave out $x$ and out $y$ at 0 and use the projector's tool window.
By selecting left justify and top justify, the projector displays the reduced image from the top left corner of the \textit{temporary} in the center of the output.
+\paragraph{Note:} To change the limits of the slider X, Y and Z, which by default are $-100 / +100$, we must intervene on the zoom bar at the bottom of the Program window. Select Zoom for Z; or X and Y and enter the desired values. Now the Camera/Projector tool will assume the new limits.
+
Other buttons cover the 5 modes of curves interpolation: smooth, linear, tangent, free, bump.
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