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xset Scilab Group Scilab Function xset
NAME
xset - set values of the graphics context
CALLING SEQUENCE
xset(choice-name,x1,x2,x3,x4,x5)
xset()
PARAMETERS
choice-name : string
x1,...,x5 : depending on choice-name
DESCRIPTION
xset is used to set default values of the current window graphic context.
When called no argument, a choice menu is created showing the current
values and changes can be performed through toggle buttons. Use xset()
to display or set the current color, mark and fonts used.
xset("alufunction",number)
: Used to set the logical function for drawing. The logical function
used is set by x1. Usual values are: 3 for copying
(default), 6 for animation and 0 for clearing. See
alufunctions for more details.
xset("auto clear","on"|"off")
: Switch "on" or "off" the auto clear mode for graphics. When the auto
clear mode is "on", successive plots are not superposed, ie
an xbasc() operation (the graphics window is cleared and the
associated recorded graphics is erased) is performed before
each high level graphics function. Default value is "off".
xset("background",color)
: Set the background color of the current graphics window.
xset("clipping",x,y,w,h)
: Set the clipping zone (the zone of the graphics window where plots can
be drawn) to the rectangle (x,y,w,h) (Upper-Left point Width
Height). This function uses the current coordinates of the
plot.
xset("color",value)
: Set the default color for filling, line or text drawing functions.
value is an integer projected in the interval [0,whiteid]. 0
is used for black filling and whiteid for white. The value
of whiteid can be obtained with xget("white").
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("dashes",i)
: In black and white mode (xset("use color",0)), set the dash style to
style i (0 for solid line). In color mode (xset("use
color",1 )) this is used to set line, mark and text color.
This keyword is obsolete, please use xset('color',i) or
xset('line style',i) instead.
xset("default")
: Reset the graphics context to default values.
xset("font",fontid,fontsize) : Set the current font and its current
size. Note that fontsize applies to all fonts not only fontid .
xset("font size",fontsize)
: Set the fonts size.
xset("foreground",color)
: Set the foreground color of the current graphics window.
xset("fpf",string)
: Set 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. colorid=0 zero suppress the drawing of backward facing faces of
3d objects. This is technically called 'culling' and is
useful for closed surfaces.
xset("line mode",type)
: This function is used to set the line drawing mode. Absolute mode is
set with type=1 and relative mode with type=0. (Warning:
the mode type=0 has bugs)
xset("line style",value)
: Set the current line style (1: solid, >1 for dashed lines).
xset("mark",markid,marksize)
: Set the current mark and the current mark size. Use xset() to see the
marks. Note that marksize applies to all marks not only
markid .
xset("mark size",marksize)
: Set the marks size.
xset("pattern",value)
: 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 whiteid can be
obtained with xget("white"). "pattern" is equivalent to
"color".
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 sent to the
graphics window with the command xset("wshow"). The pixmap
is cleared with the command xset("wwpc"). Note that the
usual command xbasc() also clears the pixmap.
xset("thickness",value)
: Set the thickness of lines in pixel (0 and 1 have the same meaning: 1
pixel thick).
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("viewport",x,y)
: Set the position of the panner.
xset("wdim",width,height)
: Set the width and the height of the current graphics window. This
option is not used by the postscript driver.
xset("wpdim",width,height)
: Sets the width and the height of the current physical graphic window
(which can be different from the actual size in mode wresize
1). This option is not used by the postscript driver.
xset("window",window-number)
: Set the current window to the window window-number and creates the
window if it does not exist.
xset("wpos",x,y)
: Set the position of the upper left point of the graphics window.
xset("wresize",flag)
If flag=1 then the graphic is automatically resized to fill the graphics
window.
xdel();xset("wresize",1);plot2d();xset("wdim",1000,500)
If flag=0 the scale of the graphic is left unchanged when
the graphics window is resized. Top left panner or keyboard
arrows may be used to scroll over the graphic.
xdel();plot2d();xset("wresize",0);xset("wdim",1000,500)
xset("wshow") : See xset("pixmap",1) above.
xset("wwpc") : See xset("pixmap",1) above.
SEE ALSO
colormap, xget, getcolor, getsymbol
AUTHOR
J.Ph.C.
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