2013

Document handling 63
OUTLINE ONLY. This is now fully anti-aliased for higher quality screen display.
OUTLINE WITH BLEND STEPS.
FULL COLOR (no anti-aliasing).
HIGH QUALITY (full anti-aliasing and image smoothing)
VERY HIGH QUALITY Bi-cubic photo display considerably improves the quality of
scaled down photos.
The default quality level is
VERY HIGH QUALITY which means the document is
displayed on screen exactly as it will be printed (except that the monitor is lower
resolution than a printer.) Anti-aliasing gives a much smoother and more accurate
screen display, especially when displaying small details. However, one of the
consequences is that sometimes objects can look slightly blurred.
FULL COLOR shows the document colored, but with anti-aliasing turned off.
On the
OUTLINE setting only the outlines of the shapes appear (they are drawn as wire
frames). This makes it easier to select objects hidden behind other objects.
OUTLINE WITH BLEND STEPS is particularly useful for seeing outlines of the various
steps of a blend.
You can also change these settings with "WINDOW ->
QUALITY". There are toolbar buttons available for the
five quality settings on the Window toolbar (on page
360).
Refer to "Blends (on page 242)" for more on how the quality setting affects the
display of
blends.
The constrain key
The "Ctrl" key has a special function in Page & Layout Designer. It constrains the
action of the current operation in some way. For example, normally you can rotate an
object to any angle. But in Page & Layout Designer,if you hold down "Ctrl" while you
rotate an object, the rotation is constrained to a subset of the possible angles. By
default the object will rotate only to multiples of 45 degrees plus any rotations where
a significant straight edge in the object becomes vertical or horizontal.
The black line on the left can be rotated
to any angle within the circle. On the
right is the same line, but with "Ctrl" held
down it can only be rotated to the
positions indicated.
Similarly, constraining a rectangle creates a perfect square and constraining an ellipse
creates a perfect circle. Release "Ctrl", and they will not be constrained.
The constrain angle feature is defined in
OPTIONS -> GENERAL -> ANGLE CONSTRAINT
(on page 347) .