Subsections

• Coarse Positioning
• Fine-Positioning

   
Scrollbars (Fine-Tuning)

Coarse Positioning

The vertical and horizontal scrollbars for the virtual window (outermost scrollbars on the left and bottom of the graph window) are used to respectively position the virtual window at an x or y coordinate, i.e. they move the window through the coordinate system.

Fine-Positioning

The vertical and horizontal scrollbars for the display window (innermost scrollbars on the left and bottom of the graph window) are used to scroll the display window through the virtual window. These scrollbars enable the position of the visible part of the graph to be fine-tuned. It should be noted that repositioning the virtual window causes part of the graph to be redrawn. Scrolling the display over the virtual window only causes the display window to be refreshed. Refreshing is usually a much faster operation.