Zoom buttons

The Zoom buttons zoom in and out on the wiring canvas. The same functionality is accessed via the mouse scroll wheel. The reset zoom button $\resizebox{!}{2ex}{\includegraphics{images/zoomOrig.eps}}$ resets the zoom level to 1, and also recentres the canvas. It can also be used to recentre the equation view.

The zoom to fit button zooms the model so that it just fits in the current canvas window.