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meshgrid | Examples See Also |
Generate X
and Y
matrices for three-dimensional plots
[X,Y]=
meshgrid(x,y) [X,Y] = meshgrid(x) [X,Y,Z] = meshgrid(x,y,z)
[X,Y] = meshgrid(x,y)
transforms the domain specified by vectors x
and y
into arrays X
and Y
, which can be used to evaluate functions of two variables and three-dimensional mesh/surface plots. The rows of the output array X
are copies of the vector x
; columns of the output array Y
are copies of the vector y
.
[X,Y] = meshgrid(x)
is the same as [X,Y] = meshgrid(x,x)
.
[X,Y,Z] = meshgrid(x,y,z)
produces three-dimensional arrays used to evaluate functions of three variables and three-dimensional volumetric plots.
The meshgrid
function is similar to ndgrid
except that the order of the first two input and output arguments is switched. That is, the statement
[X,Y,Z] = meshgrid(x,y,z)produces the same result as
[Y,X,Z] = ndgrid(y,x,z)Because of this,
meshgrid
is better suited to problems in two- or three-dimensional Cartesian space, while ndgrid
is better suited to multidimensional problems that aren't spatially based.
meshgrid
is limited to two- or three-dimensional Cartesian space.
The function
[X,Y] = meshgrid(1:3,10:14)produces two output arrays,
X
and Y
:
X = 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Y = 10 10 10 11 11 11 12 12 12 13 13 13 14 14 14
griddata
,mesh
,ndgrid
,slice
, surf