The tables below explain how the mouse buttons interface with the plot display.
NeXtMidas follows the following mouse button naming convention used by many other programs. The names are as follows:
Most users with wheel-mice (such as those distributed by Microsoft, Logitech, and Dell) will find that pressing the wheel down has the same effect as a MMB click.
Button Function LMB Click Indicate/clear a mark point (the point where any dx/dy values are computed relative to). (The function can also be user defined, see below) LMB Drag Selects a box to zoom in on. Shift LMB Drag Creates a DRAGBOX on a plot. (Some macros use the DRAGBOX message to draw a box on the plot.) MMB Click Click on black area of Plot window to bring up the Plot menu. (The function can also be user defined, see below) MMB Drag When zoomed-in on a region, this pans/moves the plot. RMB Click Zoom out to the previous level. (The function can also be user defined, see below) RMB Click-Hold-Release Click on black area of Plot window hold down button for 1 second then release to bring up the Plot menu. This option is provided to support two button mice. RMB Drag (Geodetic View Only) If done over the World it rotates the plot; if done away from the world it zooms in/out. (Other Views) Zoom in/out by clicking in the top right corner (top 20%) and dragging. Drag toward the bottom left to zoom in and towards the top right to zoom out.
"Readout" information is displayed as the mouse moves over a plot. For example, when you place the pointer on the map of the world, the latitude and longitude are shown in parentheses after the word PLOT in the title bar. This information changes as you move the pointer around the map.
Since 3.5.2, the function of mouse clicks can be user defined using the keyword only parameter BUTTONACTION={MMB=<action>,RMB=<action>,LMB=<action>}. The functions listed in the chart are the defaults.
![]() XGEOPLOT command in X-Midas requires users to click
within a "pan/zoom box" to pan/move the plot. In NeXtMidas,
users pan by clicking anywhere on the plot.
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The following mouse interactions are available within a popup menu:
Button Function LMB Click Selects an item in the menu. RMB Click Exits the menu. MMB Drag Moves the menu from one location to another.
The following mouse interactions are available within a NeXtMidas panel:
Button Function LMB Click If over a menu or valuator widget, this brings up a menu to select options. LMB Click If over the widget title, this cycles through the available values. MMB Click If over the black area, this brings up the Panel menu. RMB Click If over the widget title, this cycles through the available values (in descending order).
Note: The above interactions may not be available in a Swing panel.