csmstr - Omega Engineering

SELECTING PRIMITIVES
CRIMSON USER MANUAL - MODULAR CONTROLLER
this feature can make it very easy to align primitives as they are created, without the need to
go back and “tweak” your display pages to get the various figures into alignment.
In the Smart Align example shown below, a newly-created ellipse is being aligned with two
existing rectangles. Guidelines are present at both the edges of the figures, and at the center,
showing that both the edges and the centers are aligned. The red rectangle is highlighting the
newly-created primitive, while the blue rectangles are highlighting the primitives to which the
guidelines have been drawn.
Smart Align is also enabled when primitives are moved or re-sized.
KEYBOARD OPTIONS
While creating a display primitive, the following keyboard options are available…
• Holding down the Shift key while dragging-out the primitive will cause the
primitive to be drawn such that it is centered on the initial mouse position, with
one of its corners defined by the current mouse position. (If this doesn’t make
sense, go ahead and try it—it’s a lot easier to see than it is to explain!) This is
useful for drawing symmetrical figures centered on an initial point.
• Holding down the Ctrl key while dragging-out the primitive will keep its
horizontal and vertical sizes the same. This is useful when you want to be sure
that you draw an exact circle or square using the ellipse or rectangle primitives.
These options are also active when primitives are re-sized.
LOCK INSERT MODE
The padlock icon on the drawing toolbox can be used to add a number of primitives of the
same basic type without having to click the toolbox icon for each item in turn. To cancel lock
mode, click the padlock icon again, or press the Escape key. The same operation can be
performed by using the Lock Mode command on the Insert menu.
SELECTING PRIMITIVES
To select a display primitive, simply move your mouse pointer over the primitive in question,
and perform a left-click. You will notice that while your pointer is hovering over a primitive,
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