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See the recommended documentation of this function
xarrows
draw a set of arrows
Calling Sequence
xarrows(nx,ny,[arsize,style])
Arguments
- nx,ny
real vectors or matrices of same size.
- arsize
real scalar, size of the arrow head. The default value can be obtained by setting arsize to -1.
- style
matrix or scalar. If
style
is a positive scalar it gives the color to use for all arrows. If it is a negative scalar then the current color is used. If it is a vectorstyle(i)
gives the color to use for arrowi
.
Description
xarrows
draws a set of arrows given by nx
and ny
.
If nx
and ny
are vectors,
the ith arrow is defined by
(nx(i),ny(i))-->(nx(i+1),ny(i+1))
.
If nx
and ny
are matrices:
nx=[xi_1 x1_2 ...; xf_1 xf_2 ...] ny=[yi_1 y1_2 ...; yf_1 yf_2 ...]
the k
th arrow is defined by (xi_k,yi_k)-->(xf_k,yf_k)
.
xarrows
uses the current graphics scale
which can be set by calling a high level drawing function such as plot2d
.
Examples
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