MERI Interactive Map Help - Mouse and Keyboard Help

Mouse and Keyboard Help

Using the mouse

Map action	Use this tool...	...and do this
Re-center the map	Navigation element (image may vary)	Located in the upper left corner of the map display (if available). Click and hold on the Navigation image in the direction you want to re-center the map. You can click on any spot on the Navigation image to fine-tune the movement.
Re-center the map	Pan tool	Click on the Pan tool in the Toolbar, then click and drag the map to move it.
Zoom in	Mouse wheel	Scroll the mouse wheel forward or up to zoom in. Each wheel click will zoom the map by about 50 percent in width and height.
	Shift+Left mouse	Hold the Shift key down, then hold the left mouse button down and drag to draw a rectangle. The map will zoom in to the area of the rectangle.
	Zoom in tool	Click on the zoom-in tool in the Toolbar, then Click once on the map: the map will zoom in and recenter the map where you click; OR Click and drag to draw a rectangle on the map: the map will zoom in to the area of the rectangle.
	Zoom-level	Click the plus button on the zoom level control to zoom in. Some maps may have tics between the plus and minus buttons, which may be clicked to zoom to a specific scale.
Zoom out	Mouse wheel	Scroll the mouse wheel backward or down to zoom out. Each wheel click will zoom the map by about 50 percent in width and height.
	Ctrl+Left mouse	Hold the Ctrl key down, then click the left mouse button to zoom out. You can also hold the left mouse button down and drag to draw a rectangle. The map will zoom out so that the current map extent fits into the rectangle drawn. The smaller the rectangle, the more the map zooms out.
	Zoom out tool	Click on the zoom-out tool in the Toolbar, then Click once on the map: the map will zoom out and recenter the map where you click; OR Click and drag to draw a rectangle on the map: the map will zoom out so that the current map area will fit into the rectangle drawn. The smaller the rectangle you draw, the more the map will zoom out.
	Zoom-level	Click the minus button on the zoom level control to zoom out. Some maps may have tics between the plus and minus buttons, which may be clicked to zoom to a specific scale.
Zoom out to full map	Zoom full extent	Click on the full extent image in the Toolbar. The map will zoom all the way out to the full map extent.

Using the keyboard

Map action

Keyboard shortcut

Description

Zoom in

Each click of the plus key (on numeric keypad only) zooms in the map by a fixed amount when the focus is on the map.

Zoom out

Each click of the minus key (on numeric keypad only) zooms out by a fixed amount when the focus is on the map.

Recenter (pan) the map

Home	Up	Page Up
Left		Right
End	Down	Page Down

These keys move the map a small amount with each click. Arrow keys move vertically or horizontally. Home/End/PageUp/PageDown move diagonally. To use these keys on a numeric keypad, turn off the number lock (Num Lock key).