delaunay.m File Reference

Functions
endif	if (isvector(x)&&isvector(y)&&length(x)==length(y)) if(nargin
	elseif (ischar(opt)||iscellstr(opt)) tri
else	error ("delaunay: third argument must be a string")
endif else	error ("delaunay: first two input arguments must be vectors of same size")
endif	if (nargout==0) x
	x (tri(:, 2))
	x (tri(:, 3))
	x (tri(:, 1))]
	y (tri(:, 2))
	y (tri(:, 3))
	y (tri(:, 1))]
	plot (X, Y, 'b', x, y, 'r *')
	!assert (sortrows(sort(delaunay(x, y), 2)),[1, 2, 5;1, 4, 5;2, 3, 5;3, 4, 5])%!demo%!rand('state'
	x (T(:, 2))
	x (T(:, 3))
	x (T(:, 1))]
	y (T(:, 2))
	y (T(:, 3))
	y (T(:, 1))]
	!axis ([0, 1, 0, 1])
	!plot (X, Y,'b', x, y,'r *')
Variables
function	ret
	y = y(:).'
	X = [x(tri(:,1))
	Y = [y(tri(:,1))
endif endfunction!testif HAVE_QHULL	!x = [-1, 0, 1, 0, 0]
	!y = [0, 1, 0, -1, 0]
	!T = delaunay(x,y)
	!X = [ x(T(:,1))
	!Y = [ y(T(:,1))

---

Function Documentation

!assert

(

sortrows(sort(delaunay(x, y), 2))

)

!axis

(

)

!plot	(	X	,
		Y	,
		'b'	,
		x	,
		y	,
		'r *'
	)

elseif

(

ischar(opt)||iscellstr(opt)

)

endif else error

(

"delaunay: first two input arguments must be vectors of same size"

)

else error

(

"delaunay: third argument must be a string"

)

endif if

(

nargout

= =0

)

endif if

(

isvector(x)&&isvector(y)&&length(x)

= =length(y)

)

plot	(	X	,
		Y	,
		'b'	,
		x	,
		y	,
		'r *'
	)

x

(

T(:, 1)

)

x

(

T(:, 3)

)

x

(

T(:, 2)

)

x

(

tri(:, 1)

)

x

(

tri(:, 3)

)

x

(

tri(:, 2)

)

y

(

T(:, 1)

)

y

(

T(:, 3)

)

y

(

T(:, 2)

)

y

(

tri(:, 1)

)

y

(

tri(:, 3)

)

y

(

tri(:, 2)

)

---

Variable Documentation

!T = delaunay(x,y)

!X = [ x(T(:,1))

!x = [-1, 0, 1, 0, 0]

!Y = [ y(T(:,1))

!y = [0, 1, 0, -1, 0]

endfunction function ret

Initial value:

 delaunay (x, y, opt)

  if (nargin != 2 && nargin != 3)
    print_usage ()

X = [x(tri(:,1))

Y = [y(tri(:,1))

y = y(:).'