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xset(2) Scilab Function xset(2)
NAME
xset - set values of the graphic context
CALLING SEQUENCE
xset(choice-name,x1,x2,x3,x4,x5)
xset()
PARAMETERS
choice-name
: string
x1,...,x5 : depending on choice-name
xset("alufunction",number)
: used to set the logical function for drawing, it works
only under X11. The logical function used is set by x1. The
default value is 3.
0 : function " 0 ",
1 : function " src AND dst "
2 : function " src AND NOT dst "
3 : function " src ",
4 : function " NOT src AND dst "
5 : function " dst ",
6 : function " src XOR dst ",
7 : function " src OR dst ",
8 : function " NOT src AND NOT dst ",
9 : function " NOT src XOR dst ",
10 : function " NOT dst ",
11 : function " src OR NOT dst ",
12 : function " NOT src ",
13 : function " NOT src OR dst ",
14 : function " NOT src OR NOT dst ",
15 : function " 1 ";
xset("auto clear","on"|"off")
: to switch on or off the auto clear mode for graphics. When
the auto clear mode is on an xbasc() operation is performed
before each high level graphic function.
xset("background",color)
: to fix the background color of the current graphic window.
xset("clipping",x,y,w,h)
: set the clipping zone to the rectangle (x,y,w,h) (Upper-
Left point Width Height). This function uses the current
scale
xset("colormap",cmap)
: set the colormap as a m x 3 matrix. m is the number of
colors. Color number i is given as a 3-uple cmap[i,1],
cmap[i,2], cmap[i,3] corresponding respectively to Red,
Green and Blue intensity between 0 and 1.
xset("default")
: reset the graphic context to default values
xset("dashes",i)
: set the dash style to style i (0 for solid line)
xset("font",fontid,fontsize)
: to fix the current font and its current size.
xset("foreground",color)
: to fix the foreground color of the current graphic window.
xset("fpf",string)
: to fix the floating point format for number display in
contour functions. string is a string giving the format in C
format syntax (for example string="%3f"), use string='' to
switch back to default format.
xset("hidden3d",colorid)
: set the color number for ``hidden'' faces in plot3d.
xset("line mode",type);
This function is used to fix the line drawing mode. Absolute
mode is fixed withtype=1 an relative mode with type=0.
(Warning : the mode type=0 is bugged )
xset("mark",markid,marksize)
: is used to set the current mark and current mark size.
xset("pattern",value)
: to set the current pattern for filling functions, value is
an integer projected in the interval [0,whiteid]. 0 is used
for black filling and whiteid for white. The value of whi-
teid can be obtained with xget("white").
xset("thickness",value)
: fixes the thickness of lines in pixel ( 0 and 1 have the
same meaning : 1 pixel thick)
xset("wdim",width,height)
: fixes the width and height of the current graphic window.
This option is not used by the postscript driver.
xset("wpos",x,y);
: fixes the position of the upper left point of the graphic
window.
xset("window",window-number)
Set the current window to the window window-number and
creates the window if it doesn't exists.
xset("use color",flag)
if flag=1 then xset("pattern",.) or xset("dashes",.) will be
used so as to change the default Color for drawing or for
filling patterns. If flag=0 then we switch back to the gray
and dashes mode.
xset("pixmap",flag)
if
flag=0 the graphics are directly displayed on the screen
if
flag=1 the graphics are done on a Pixmap and are send to
the graphic window with the command xset("wshow"). The
Pixmap is cleared with the command xset("wwpc") or with
the usual command xbasc().
xset("wshow") : see xset("pixmap",1) above
xset("wwpc") : see xset("pixmap",1) above
DESCRIPTION
xset is used to set values of the graphic context. When called no argu-
ments, a choice menu is created showing the current values and changes can
be performed through toggle buttons
SEE ALSO
xget, colormap
REFERENCE
X11 documentation
AUTHOR
J.Ph.C.
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