Zooming using mouse wheel

Ctrl+MouseWheel can be used to zoom in the plot windows. Additionally, x+MouseWheel zooms only the x-axis and y+MouseWheel zooms only the y-axis.

The zoom focusses on the mouse pointer. With Ctrl, the axes aspect ratio is kept; with x or y, only the respective axis is scaled.

Zooming is currently only supported on rectilinear Axes.