MEGS_Log has two different styles of editing boreholes with the mouse.
With the first style (using Normal Mode) you use the
shift, control and alt keys to control the editing actions. With the second
style (using Editing Tools) you change the Editing
Tool using the function keys.
You can use either style interchangeably.
Normal Mode
In Normal Mode, the following editing actions apply:
You can move a boundary between units by simply left clicking and
dragging on the particular boundary. Whether moving the boundary
moves all folllowing units down, or just changes the thickness of the
units immediately surrounding the boundary depends on the current
Insert Mode. If you hold down
the Shift key while clicking and
dragging you change (toggle) the Insert Mode for that action only.
You can insert a new boundary by holding down the Alt key and left
clicking within the borehole field. If you click and drag down then you will
insert two boundaries, the lower of which will move with the mouse. Again,
whether all following units move depends on the current Insert Mode, and you
can hold down the shift key to change the insert mode for that action
only.
You can select a unit by left clicking within it (clear of its
top and bottom boundaries). You can also click and drag to select multiple
units at once - see How to select units for
more information. Once a unit has been selected there are additional menu
commands and short-cut keys available to edit the unit.
Right clicking within a unit will select the unit and also display
a menu of common editing actions.
Double left-clicking a unit will select the unit and bring up the Set Rock
dialog box.
Editing Tools
This style of editing is similar to that provided with previous versions
of MEGS_Log. With this style you select an Editing Tool using the function
keys or a menu command under the Tools menu, and then select the unit or
position within the borehole field with which to operate on. Once an Editing
Tool is selected it stays in effect until you explicitly change it. The current
tool is given in the MEGS_Log status bar, and also by the mouse cursor when you
move the mouse within the MEGS_Log window.
The editing tools available are:
Create Boundaries: To
split units or append units to boreholes. Once in this mode left click within
the borehole field at the location where you want the new boundary. If you
click beyond the last unit in a borehole then a new unit will be appended
to the borehole. If you click within an existing unit then that unit will
be split into two. The current Insert
Mode does not affect the operation of Create Boundaries.
Pick and Drag: To move an
existing boundary between units. This is a two step process. Once in this
mode left click on a boundary between units and a set of handles will be
displayed either side of the borehole. Then left click and drag within the
rectangular handle areas to move the boundary.
Set Rock: To change the rocktype
associated with a unit. Once in this mode simply left click on a unit and the
Set Rock dialog box will be displayed.
Merge: To delete a unit and expand
the underlying unit to occupy its place. Once in this mode left click on the
underlying unit (the one that will remain after the merge is complete).
Insert: To insert a new unit. Once
in this mode left click at the point where you want the unit, and then drag
the mouse until the unit is at the desired thickness.
Set Base Depth: To change
the depth or thickness of a unit. Once in this mode left click the unit you
want to change.
Correlate: To change the sample
number or seam of a unit. Which property is changed is consistent with the
current display settings - if the
Show Sample Numbers setting
is currently on then sample numbers will be edited, otherwise you edit seam
and ply information. Once in this mode left click on the unit that you want
to change.
Delete: To delete a unit. Once in
this mode simply left click on a unit to be deleted.
You can exit the current Editing Tool and return to Normal Mode at any time
by repeatedly pressing the Escape key (multiple presses might be required if
a unit or bore is currently selected).