Unicon Language Reference Clinton L. Jeffery Shamim Mohamed ...

IdentityMatrix(w) changes the current matrix to the identity matrix on 3D window w. The display
list element is returned.
Lower(w) : window
Lower(w) moves window w to the bottom of the window stack.
lower window
MatrixMode(w, s) : record
set matrix mode
MatrixMode(w, s) changes the matrix mode to s on 3D window w. The string s must be either
“projection” or “modelview”; otherwise this procedure fails. The display list element is returned.
MultMatrix(w, L) : record
multiply transformation matrix
MultMatrix(w, L) multiplies the current transformation matrix used in 3D window w by the 4x4
matrix represented as a list of 16 values L.
NewColor(w, s) : integer
allocate mutable color
NewColor(w,s) allocates an entry in the color map and returns a small negative integer for this
entry, usable in calls to routines that take a color specification, such as Fg(). If s is specified, the
entry is initialized to the given color. NewColor() fails if it cannot allocate an entry.
PaletteChars(w, s) : string
pallete characters
PaletteChars(w,s) produces a string containing each of the letters in palette s. The palletes “c1”
through“c6”define different color encodings of images represented as string data; see [Griswold98].
PaletteColor(w, p, s) : string
PaletteColor(w,s) returns the color of key s in palette p in “r,g,b” format.
PaletteKey(w, p, s) : integer
PaletteKey(w,s) returns the key of closest color to s in palette p.
pallete color
pallete key
Pattern(w, s) : w
define stipple pattern
Pattern(w,s) selects stipple pattern s for use during draw and fill operations. s may be either the
name of a system-dependent pattern or a literal of the form width,bits. Patterns are only used
when the fillstyle attribute is stippled or opaquestippled. Pattern() fails if a named pattern is not
defined. An error occurs if Pattern() is given a malformed literal.
Pending(w, x, ...) : L
produce event queue
Pending(w) produces the list of events waiting to be read from window w. If no events are
available, the list is empty (its size is 0). Pending(w,x1,...,xn) adds x1 through xn to the end of
w’s pending list in guaranteed consecutive order.
Pixel(w, x:0, y:0, width:0, height:0) : i1...in
generate window pixels
Pixel(w,x,y,width,height) generates pixel contents from a rectangular area within window w. width
* height results are generated starting from the upper-left corner and advancing down to the
bottom of each column before the next one is visited. Pixels are returned in integer values;
ordinary colors are encoded nonnegative integers, while mutable colors are negative integers that
were previously returned by NewColor(). Ordinary colors are encoded with the most significant
37