GUI Reference

Zoom

Selecting Zoom opens this submenu.

You have the following zooming options:

• X-Y -- Enlarge a selected area in the X-Y region. To do this, select X-Y, hold down your mouse's left button, and drag to create a box region on the root locus. When you release the left button, the selected area becomes the entire plot region.
• In-X -- Zoom in, X-axis only. To do this, select In-X, hold down your mouse's left button, and drag horizontally to create a line parallel to the X-axis. When you release the left button, the selected area becomes the new X-axis limits.
• In-Y -- Zoom in, Y-axis only. To do this, select In-Y, hold down your mouse's left button, and drag vertically to create a line parallel to the Y-axis. When you release the left button, the selected area becomes the new Y-axis limits.
• Out -- Select Out to undo the last zoom in that you did. If you have not done any zooming, or if you have undid all your zoom enlargements, the Out menu item is grayed out.

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