MATLAB mesh in MATLAB®
Learn how to make 4 mesh charts in MATLAB, then publish them to the Web with Plotly.
Create Mesh Plot
Create three matrices of the same size. Then plot them as a mesh plot. The plot uses Z
for both height and color.
[X,Y] = meshgrid(-8:.5:8); R = sqrt(X.^2 + Y.^2) + eps; Z = sin(R)./R; mesh(X,Y,Z) fig2plotly('TreatAs', 'mesh')
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Specify Colormap Colors for Mesh Plot
Specify the colors for a mesh plot 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(-8:.5:8); R = sqrt(X.^2 + Y.^2) + eps; Z = sin(R)./R; C = X.*Y; mesh(X,Y,Z,C) colorbar fig2plotly('TreatAs', 'mesh')
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Specify True Colors for Mesh Plot
Specify the colors for a mesh plot by including a fourth matrix input, CO
. The mesh plot uses Z
for height and CO
for color. Specify the colors using truecolor, which uses triplets of numbers to stand for all possible colors. When you use truecolor, if Z
is m
-by-n
, then CO
is m
-by-n
-by-3. The first page of the array indicates the red component for each color, the second page indicates the green component, and the third page indicates the blue component.
[X,Y,Z] = peaks(25); CO(:,:,1) = zeros(25); % red CO(:,:,2) = ones(25).*linspace(0.5,0.6,25); % green CO(:,:,3) = ones(25).*linspace(0,1,25); % blue mesh(X,Y,Z,CO) fig2plotly('TreatAs', 'mesh')
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Modify Mesh Plot Appearance
Create a semitransparent mesh surface by specifying the FaceAlpha
name-value pair with 0.5
as the value. 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 = mesh(X,Y,Z,'FaceAlpha','0.5')
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s = Surface with properties: EdgeColor: 'flat' LineStyle: '-' FaceColor: [1 1 1] FaceLighting: 'none' FaceAlpha: 0.5000 XData: [21x21 double] YData: [21x21 double] ZData: [21x21 double] CData: [21x21 double] Show all properties
s.FaceColor = 'flat';
fig2plotly('TreatAs', 'mesh')
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