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drawaxis Scilab Group Scilab Function drawaxis
NAME
drawaxis - draw an axis
CALLING SEQUENCE
drawaxis([options])
// options: x,y,dir,sub_int,fontsize,format_n,seg,textcolor,ticscolor,tics
PARAMETERS
dir=string
: used to specify the tics direction. string can be chosen among
'u','r','d','l' and 'l' is the default value. the values
'u','r','d','l' stands respectively for up, right, down, left
tics=string
: A flag which describes how the tics are given. string can be chosen
among 'v','r', and 'i', and, 'v' is the default value
x,y : two vectors which give tics positions.
val= string matrix
: A string matrix, which, when given, gives the string to be drawn along
the axis at tics positions.
fontsize=int
: specifies the fontsize to use for displaying values along the axis.
Default value is -1 which stands for current fontsize
format_n=string
: format to use for displaying numbers along the axis
seg= 1 or 0
: A flag which controls the display of the base segment of the axis
(default value is 1).
sub_int=integer
: an integer which gives the number of sub-intervals to draw between
large tics.
textcolor=integer
: specify the color to use for displaying values along the axis. Default
value is -1 which stands for current color.
ticscolor=integer
: specify the color to use for tics drawing. Default value is -1 which
stands for current color.
DESCRIPTION
drawaxis is used to draw an axis in vertical or horizontal direction.
the direction of the axis is given by dir dir = 'u' or 'd' gives a
horizontal axis with tics going up ('u') or down ('d'). dir = 'r' or
'l' give a vertical axis with tics going right ('r') or left ('l'). x
and y give the axis tics positions. If the axis is horizontal then y
must be a scalar or can be omitted and x is a Scilab vector. The meaning
of x is controlled by tics.
If tics='v' then x gives the tics positions along the x-axis.
If tics='r' then x must be of size 3. x=[xmin,xmax,n] and n gives the
number of intervals.
If tics='i' then x must be of size 4, x=[k1,k2,a,n]. then xmin=k1*10^a,
xmax=k2*10^a and n gives the number of intervals
If y is omitted then the axis will be positioned at the top of the frame
if dir='u' or at the bottom if dir='d' By default, numbers are drawn
along the axis. They are drawn using a default format which can be
changed with format_n. It is also possible to display given strings and
not numbers, this is done if val is provided. The size of val must match
the number of tics.
EXAMPLE
plot2d(1:10,1:10,1,"020")
// horizontal axis
drawaxis(x=2:7,y=4,dir='u',tics='v')
// horizontal axis on top of the frame
drawaxis(x=2:7,dir='u',tics='v')
// horizontal axis at the bottom of the frame
drawaxis(x=2:7,dir='d',tics='v')
// horizontal axis given by a range
drawaxis(x=[2,7,3],y=4,dir='d',tics='r')
// vertical axis
drawaxis(x=4,y=2:7,dir='r',tics='v')
drawaxis(x=2,y=[2,7,3],dir='l',tics='r')
drawaxis(y=2:7,dir='r',tics='v')
drawaxis(y=2:7,dir='l',tics='v')
// horizontal axis with strings displayed at tics positions
drawaxis(x=2:7,y=8,dir='u',tics='v',val='A'+string(1:6));
// vertical axis with strings displayed at tics positions
drawaxis(x=8,y=2:7,dir='r',tics='v',val='B'+string(1:6));
// horizontal axis given with a 'i' range.
drawaxis(x=[2,5,0,3],y=9,dir='u',tics='i');
drawaxis(x=9,y=[2,5,0,3],dir='r',tics='i',sub_int=5);
// horizontal axis again
drawaxis(x=2:7,y=4,dir='u',tics='v',fontsize=10,textcolor=9,ticscolor=7,seg=0,sub_int=20)
AUTHOR
J.Ph.C.
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