meshz
Mesh surface plot with curtain
Description
meshz(
creates a mesh plot with a curtain around it. A mesh plot is a threedimensional
surface that has solid edge colors and no face colors. The function plots the
values in matrix X
,Y
,Z
)Z
as heights above a grid in the
xy plane defined by
X
and Y
. The edge colors vary
according to the heights specified by Z
.
meshz(
creates a mesh plot with a
curtain, and uses the column and row indices of the elements in
Z
)Z
as the x and
ycoordinates.
meshz(___,
specifies additional options for the Name,Value
)meshz
plot using one or
more namevalue pair arguments. Specify the options after all other input
arguments. For a list of properties, see Surface Properties.
meshz(
plots into
the axes specified by ax
,___)ax
instead of the current axes. Specify
the axes as the first input argument.
s = meshz(___)
returns the chart surface
object. Use s
to modify the mesh plot after it is created.
For a list of properties, see Surface Properties.
Examples
Display Curtain Around Mesh Plot
Create three matrices of the same size. Then plot them as a mesh plot with a curtain. The mesh plot uses Z
for both height and color.
[X,Y] = meshgrid(3:.125:3); Z = peaks(X,Y); meshz(X,Y,Z)
Specify Colormap Colors for Mesh Plot With Curtain
Specify the colors for a mesh plot and surrounding curtain by including a fourth matrix input, C
. The mesh plot uses Z
for height and C
for color. Specify the colors using a colormap, which uses single numbers to stand for colors on a spectrum. When you use a colormap, C
is the same size as Z
. Add a color bar to the graph to show how the data values in C
correspond to the colors in the colormap.
[X,Y] = meshgrid(3:.125:3); Z = peaks(X,Y); C = gradient(Z); meshz(X,Y,Z,C) colorbar
Modify Appearance of Mesh Plot With Curtain
Create a mesh plot with a curtain around it. To allow further modifications, assign the surface object to the variable s
.
[X,Y] = meshgrid(5:.5:5); Z = Y.*sin(X)  X.*cos(Y); s = meshz(X,Y,Z)
s = Surface (meshz) with properties: EdgeColor: 'flat' LineStyle: '' FaceColor: [1 1 1] FaceLighting: 'none' FaceAlpha: 1 XData: [25x25 double] YData: [25x25 double] ZData: [25x25 double] CData: [25x25 double] Use GET to show all properties
Use s
to access and modify properties of the mesh plot after it is created. For example, change the color of the mesh plot edges and surrounding curtain by setting the EdgeColor
property.
s.EdgeColor = 'b';
Input Arguments
X
— xcoordinates
matrix  vector
xcoordinates, specified as a matrix the same size as
Z
, or as a vector with length n
,
where [m,n] = size(Z)
. If you do not specify values for
X
and Y
,
meshz
uses the vectors (1:n)
and
(1:m)
.
When X
is a matrix, the values must be strictly
increasing or decreasing along one dimension and remain constant along the
other dimension. The dimension that varies must be the opposite of the
dimension that varies in Y
. You can use the meshgrid
function to create
X
and Y
matrices.
When X
is a vector, the values must be strictly
increasing or decreasing.
The XData
property of the surface object stores the
xcoordinates.
Example: X = 1:10
Example: X = [1 2 3; 1 2 3; 1 2 3]
Example: [X,Y] = meshgrid(5:0.5:5)
Data Types: single
 double
 int8
 int16
 int32
 int64
 uint8
 uint16
 uint32
 uint64
 categorical
Y
— ycoordinates
matrix  vector
ycoordinates, specified as a matrix the same size as
Z
or as a vector with length m
,
where [m,n] = size(Z)
. If you do not specify values for
X
and Y
,
meshz
uses the vectors (1:n)
and
(1:m)
.
When Y
is a matrix, the values must be strictly
increasing or decreasing along one dimension and remain constant along the
other dimension. The dimension that varies must be the opposite of the
dimension that varies in X
. You can use the meshgrid
function to create
X
and Y
matrices.
When Y
is a vector, the values must be strictly
increasing or decreasing.
The YData
property of the surface object stores the
ycoordinates.
Example: Y = 1:10
Example: Y = [1 1 1; 2 2 2; 3 3 3]
Example: [X,Y] = meshgrid(5:0.5:5)
Data Types: single
 double
 int8
 int16
 int32
 int64
 uint8
 uint16
 uint32
 uint64
 categorical
Z
— zcoordinates
matrix
zcoordinates, specified as a matrix.
Z
must have at least two rows and two columns.
Z
specifies the height of the mesh plot at each
xy coordinate. If you do not
specify the colors, then Z
also specifies the mesh edge
colors.
The ZData
property of the surface object stores the
zcoordinates.
Example: Z = [1 2 3; 4 5 6]
Example: Z = sin(x) + cos(y)
Data Types: single
 double
 int8
 int16
 int32
 int64
 uint8
 uint16
 uint32
 uint64
 categorical
C
— Color array
matrix
Color array, specified as an mbyn matrix of colormap indices, where
Z
is m
byn
.
For each grid point on the mesh surface, C
indicates a
color in the colormap. The CDataMapping
property of the
surface object controls how the values in C
correspond to
colors in the colormap.
The CData
property of the surface object stores the
color array. For additional control over the surface coloring, use the
FaceColor
and EdgeColor
properties.
ax
— Axes to plot in
axes object
Axes to plot in, specified as an axes
object. If you do
not specify the axes, then meshz
plots into the current
axes.
NameValue Arguments
Specify optional pairs of arguments as
Name1=Value1,...,NameN=ValueN
, where Name
is
the argument name and Value
is the corresponding value.
Namevalue arguments must appear after other arguments, but the order of the
pairs does not matter.
Before R2021a, use commas to separate each name and value, and enclose
Name
in quotes.
Example: meshz(X,Y,Z,'EdgeColor','red')
creates the mesh with
red lines.
Note
The properties listed here are only a subset. For a full list, see Surface Properties.
MeshStyle
— Edges to display
'both'
(default)  'row'
 'column'
Edges to display, specified as 'both'
, 'row'
,
or 'column'
.
EdgeColor
— Edge line color
[0 0 0]
(default)  'none'
 'flat'
 'interp'
 RGB triplet  hexadecimal color code  'r'
 'g'
 'b'
 ...
Edge line color, specified as one of the values listed here.
The default color of [0 0 0]
corresponds to black
edges.
Value  Description 

'none'  Do not draw the edges. 
'flat'  Use a different color for each edge based on the values
in the 
'interp' 
Use interpolated coloring for each edge based on the values in the

RGB triplet, hexadecimal color code, or color name 
Use the specified color for all the edges. This option does not use the color
values in the

RGB triplets and hexadecimal color codes are useful for specifying custom colors.
An RGB triplet is a threeelement row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range
[0,1]
; for example,[0.4 0.6 0.7]
.A hexadecimal color code is a character vector or a string scalar that starts with a hash symbol (
#
) followed by three or six hexadecimal digits, which can range from0
toF
. The values are not case sensitive. Thus, the color codes"#FF8800"
,"#ff8800"
,"#F80"
, and"#f80"
are equivalent.
Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.
Color Name  Short Name  RGB Triplet  Hexadecimal Color Code  Appearance 

"red"  "r"  [1 0 0]  "#FF0000"  
"green"  "g"  [0 1 0]  "#00FF00"  
"blue"  "b"  [0 0 1]  "#0000FF"  
"cyan"
 "c"  [0 1 1]  "#00FFFF"  
"magenta"  "m"  [1 0 1]  "#FF00FF"  
"yellow"  "y"  [1 1 0]  "#FFFF00"  
"black"  "k"  [0 0 0]  "#000000"  
"white"  "w"  [1 1 1]  "#FFFFFF" 
Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB^{®} uses in many types of plots.
RGB Triplet  Hexadecimal Color Code  Appearance 

[0 0.4470 0.7410]  "#0072BD"  
[0.8500 0.3250 0.0980]  "#D95319"  
[0.9290 0.6940 0.1250]  "#EDB120"  
[0.4940 0.1840 0.5560]  "#7E2F8E"  
[0.4660 0.6740 0.1880]  "#77AC30"  
[0.3010 0.7450 0.9330]  "#4DBEEE"  
[0.6350 0.0780 0.1840]  "#A2142F" 
FaceColor
— Face color
'flat'
(default)  'interp'
 'none'
 'texturemap'
 RGB triplet  hexadecimal color code  'r'
 'g'
 'b'
 ...
Face color, specified as one of the values in this table.
Value  Description 

'flat'  Use a different color for each face based on the values
in the 
'interp' 
Use interpolated coloring for each face based on the values in the

RGB triplet, hexadecimal color code, or color name 
Use the specified color for all the faces. This option does not use the color
values in the

'texturemap'  Transform the color data in CData so that
it conforms to the surface. 
'none'  Do not draw the faces. 
RGB triplets and hexadecimal color codes are useful for specifying custom colors.
An RGB triplet is a threeelement row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range
[0,1]
; for example,[0.4 0.6 0.7]
.A hexadecimal color code is a character vector or a string scalar that starts with a hash symbol (
#
) followed by three or six hexadecimal digits, which can range from0
toF
. The values are not case sensitive. Thus, the color codes"#FF8800"
,"#ff8800"
,"#F80"
, and"#f80"
are equivalent.
Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.
Color Name  Short Name  RGB Triplet  Hexadecimal Color Code  Appearance 

"red"  "r"  [1 0 0]  "#FF0000"  
"green"  "g"  [0 1 0]  "#00FF00"  
"blue"  "b"  [0 0 1]  "#0000FF"  
"cyan"
 "c"  [0 1 1]  "#00FFFF"  
"magenta"  "m"  [1 0 1]  "#FF00FF"  
"yellow"  "y"  [1 1 0]  "#FFFF00"  
"black"  "k"  [0 0 0]  "#000000"  
"white"  "w"  [1 1 1]  "#FFFFFF" 
Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB uses in many types of plots.
RGB Triplet  Hexadecimal Color Code  Appearance 

[0 0.4470 0.7410]  "#0072BD"  
[0.8500 0.3250 0.0980]  "#D95319"  
[0.9290 0.6940 0.1250]  "#EDB120"  
[0.4940 0.1840 0.5560]  "#7E2F8E"  
[0.4660 0.6740 0.1880]  "#77AC30"  
[0.3010 0.7450 0.9330]  "#4DBEEE"  
[0.6350 0.0780 0.1840]  "#A2142F" 
EdgeAlpha
— Edge transparency
1 (default)  scalar value in range[0,1]
 'flat'
 'interp'
Edge transparency, specified as one of these values:
Scalar in range
[0,1]
— Use uniform transparency across all of the edges. A value of1
is fully opaque and0
is completely transparent. Values between0
and1
are semitransparent. This option does not use the transparency values in theAlphaData
property.'flat'
— Use a different transparency for each edge based on the values in theAlphaData
property. First you must specify theAlphaData
property as a matrix the same size as theZData
property. The transparency value at the first vertex determines the transparency for the entire edge. TheEdgeColor
property also must be set to'flat'
.'interp'
— Use interpolated transparency for each edge based on the values inAlphaData
property. First you must specify theAlphaData
property as a matrix the same size as theZData
property. The transparency varies across each edge by interpolating the values at the vertices. TheEdgeColor
property also must be set to'interp'
.
LineStyle
— Line style
""
(default)  ""
 ":"
 "."
 "none"
Line style, specified as one of the options listed in this table.
Line Style  Description  Resulting Line 

""  Solid line 

""  Dashed line 

":"  Dotted line 

"."  Dashdotted line 

"none"  No line  No line 
LineWidth
— Line width
0.5
(default)  positive value
Line width, specified as a positive value in points, where 1 point = 1/72 of an inch. If the line has markers, then the line width also affects the marker edges.
The line width cannot be thinner than the width of a pixel. If you set the line width to a value that is less than the width of a pixel on your system, the line displays as one pixel wide.
Extended Capabilities
GPU Arrays
Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.
The meshz
function
supports GPU array input with these usage notes and limitations:
This function accepts GPU arrays, but does not run on a GPU.
For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).
Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.
Usage notes and limitations:
This function operates on distributed arrays, but executes in the client MATLAB.
For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).
Version History
Introduced before R2006a
See Also
Functions
Properties
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