xsegs - draw unconnected segments

Calling Sequence

xsegs(xv,yv,[style])

Parameters

• xv,yv : matrices of the same size.
• style : vector or scalar. If style is a positive scalar, it gives the color to use for all segments. If style is a negative scalar, then current color is used. If style is a vector, then style(i) gives the color to use for segment i .

Description

xsegs draws a set of unconnected segments given by xv and yv . If xv and yv are matrices they are considered as vectors by concatenating their columns. The coordinates of the two points defining a segment are given by two consecutive values of xv and yv :

(xv(i),yv(i))-->(xv(i+1),yv(i+1)) .

For instance, using matrices of size (2,n), the segments can be defined by:

xv=[xi_1 xi_2 ...; xf_1 xf_2 ...] yv=[yi_1 yi_2 ...; yf_1 yf_2
    ...]

and the segments are (xi_k,yi_k)-->(xf_k,yf_k) .

Examples

x=2*%pi*(0:9)/10;
xv=[sin(x);9*sin(x)];
yv=[cos(x);9*cos(x)];
plot2d([-10,10],[-10,10],[-1,-1],"022")
xsegs(xv,yv,1:10)
 
  

Author

J.Ph.C.