isosurface.m File Reference

Functions
	if (nargin >=5) x
	if (nargin >=6 &&ismatrix(varargin{6})) colors
	if (nargin >=3 &&ismatrix(varargin{3})) colors
endif endif	if (calc_colors) if(nargout
endif	if (isempty(fvc.vertices)||isempty(fvc.faces)) warning("The resulting triangulation is empty")
endif	switch (nargout) case 0 new plot()
endif	if (!ishold()) set(gca()
otherwise	print_usage ()
	!val (:,:, 2)
	!assert (isfield(fv,"vertices"), true)
	!assert (isfield(fv,"faces"), true)
	!assert (size(fv.vertices),[3 3])
	!assert (size(fv.faces),[1 3])
	!assert (isfield(fvc,"vertices"), true)
	!assert (isfield(fvc,"faces"), true)
	!assert (isfield(fvc,"facevertexcdata"), true)
	!assert (size(fvc.vertices),[3 3])
	!assert (size(fvc.faces),[1 3])
	!assert (size(fvc.facevertexcdata),[3 1])
	!assert (size(f),[1 3])
	!assert (size(v),[3 3])
	!assert (size(c),[3 1])
Variables
function	varargout
endif	calc_colors = false
	f = v = c = []
	verbose = false
	noshare = false
	y = varargin{2}
	z = varargin{3}
	val = varargin{4}
	iso = varargin{5}
	endif [fvc.faces, fvc.vertices, fvc.facevertexcdata] = __marching_cube__ (x, y, z, val, iso, colors)
	else [fvc.faces, fvc.vertices] = __marching_cube__ (x, y, z, val, iso)
else	pa
endif	view
endif	xgrid
endif	on
endif	ygrid
endif	zgrid
endswitch endfunction!shared	x
	!val = [0, 0
!test	!fv = isosurface (x, y, z, val, 0.3)
!test	!fvc = isosurface (x, y, z, val, .3, y)
	!test [f, v] = isosurface (x, y, z, val, .3)
!demo	!clf [x, y, z] = meshgrid(-2:0.5:2, -2:0.5:2, -2:0.5:2)
	!v = x.^2 + y.^2 + z.^2

---

Function Documentation

!assert

(

size(c)

)

!assert

(

size(v)

)

!assert

(

size(f)

)

!assert

(

size(fvc.facevertexcdata)

)

!assert

(

size(fvc.faces)

)

!assert

(

size(fvc.vertices)

)

!assert	(	isfield(fvc,"facevertexcdata")	,
		true
	)

!assert	(	isfield(fvc,"faces")	,
		true
	)

!assert	(	isfield(fvc,"vertices")	,
		true
	)

!assert

(

size(fv.faces)

)

!assert

(

size(fv.vertices)

)

!assert	(	isfield(fv,"faces")	,
		true
	)

!assert	(	isfield(fv,"vertices")	,
		true
	)

!val	(	:	,
		:	,
		2
	)

endif if

(

!

ishold()

)

endif if

(

isempty(fvc.vertices)||isempty(fvc.faces)

)

endif endif if

(

calc_colors

)

if

(

nargin >=3 &&

ismatrixvarargin{3}

)

if

(

nargin >=6 &&

ismatrixvarargin{6}

)

if

(

nargin >=

5

)

otherwise print_usage

(

)

endif switch

(

nargout

)

[new]

---

Variable Documentation

!demo !clf[x, y, z] = meshgrid(-2:0.5:2, -2:0.5:2, -2:0.5:2)

!test !fv = isosurface (x, y, z, val, 0.3)

!test !fvc = isosurface (x, y, z, val, .3, y)

!test[f, v, c] = isosurface (x, y, z, val, .3)

!v = x.^2 + y.^2 + z.^2

!val = [0, 0

calc_colors = false

else[fvc.faces, fvc.vertices] = __marching_cube__ (x, y, z, val, iso)

endif[fvc.faces, fvc.vertices, fvc.facevertexcdata] = __marching_cube__ (x, y, z, val, iso, colors)

f = v = c = []

iso = varargin{5}

noshare = false

endif on

if(calc_colors pa

Initial value:

 patch ("Faces", fvc.faces, "Vertices", fvc.vertices, 
                    "FaceColor", "g", "EdgeColor", "k")

endswitch endfunction !shared val[x, y, z] = varargin{4}

case varargout

Initial value:

 isosurface(varargin)

  if (nargin < 2 || nargin > 8 || nargout > 3)
    print_usage ()

verbose = false

endif view

endswitch endfunction !shared x

endif xgrid

endswitch endfunction !shared y = varargin{2}

endif ygrid

endswitch endfunction !shared z = varargin{3}

endif zgrid