Pan and zoom

Moving

The sheet image is usually larger than the window where the sheet is displayed. We can move the display over the sheet using different means:

• By moving the scroll bars,
• By keeping the mouse left button pressed, and moving the selection point close to a border of the display,
• By keeping both mouse buttons pressed, and dragging the image with the selection point,
• By pressing down the mouse wheel and dragging the image with the selection point,
• By rolling the mouse wheel to move the display up or down,
• By pressing on one of the 4 arrow keys to move the display in related direction,
• By pressing on one of the 4 arrow keys, while Shift is held down, to move pixel by pixel.

Zoom

It can be adjusted in the range [1:8 to 32:1] by several means:

• By using the vertical slider located on the left side of the sheet window.
• By using the mouse wheel while holding the Ctrl key pressed.
• On the numeric keypad:
  • Key + to zoom in,
  • Key - to zoom out,
  • Key 0 to reset zoom.
• On the keyboard:
  • Key Ctrl+ = (as well as Ctrl+Shift =) to zoom in,
  • Key Ctrl+ - (as well as Ctrl+Shift -) to zoom out,
  • Key Ctrl+ 0 (as well as Ctrl+Shift 0) to reset zoom.
• By using a rectangular “lasso” while holding both keys Ctrl+Shift pressed. When releasing the mouse, the zoom will be adjusted so that both rectangle sides become fully visible.
• By using the predefined buttons and , we can fit to the sheet’s width or height, respectively.

When zooming in or out, the display remains focused on its current selection, if any.