2.4 Pict Drawing Adjusters
Scales a pict drawing, as well as its bounding-box
. The drawing
is scaled by adjusting the destination dc<%>
’s scale while
drawing the original pict
Rotates a pict’s drawing by theta radians counter-clockwise.
The bounding box of the resulting pict is the box encloses the rotated
corners of pict (which inflates the area of the bounding
box, unless theta is a multiple of half of pi). The
ascent and descent lines of the result’s bounding box are the
horizontal lines that bisect the rotated original lines; if the ascent
line drops below the descent line, the two lines are flipped.
Creats a container picture that doesn’t draw the child picture,
but uses the child’s size.
Selects a specific pen width for drawing, which applies to pen drawing
for pict that does not already use a specific pen width.
A #f value for w makes the pen transparent (in contrast
to a zero value, which means “as thin as possible for the target device”).
|(linestyle style pict) → pict?|
| ||style|| ||:|| |
|(one-of/c 'transparent 'solid 'xor 'hilite|
| 'dot 'long-dash 'short-dash 'dot-dash|
| 'xor-dot 'xor-long-dash 'xor-short-dash|
| pict : pict?|
Selects a specific pen style for drawing, which applies to pen drawing
for pict that does not already use a specific pen style.
Selects a specific color drawing, which applies to drawing in
that does not already use a specific color. The
parameter causes all non-white colors to be
converted to black.
Makes the given pict
semi-transparent, where an opacity of
is fully transparent, and an opacity of 1
opaque. See set-alpha
for information about the
contexts and cases when semi-transparent drawing works.
Insets and clips the pict’s drawing to its bounding
. Usually, the inset amounts are negative.
A parameter that determines whether colorize
uses color or