3D plot represented in 2D

Question

Mariia Arseenko 2022-1-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1637840-3d-plot-represented-in-2d

评论： Star Strider 2022-1-28

Hello,

I am trying to find a way to make the results of my 3D plot more visible. I see two ways to do that: make a border to different datasets or to make z-axes values distribution as a bacground in 2D image of x and y? Do you have an idea how to do that?

Now I have this dataset, which gives points on 3D graph.

Thanks for your help.

x1 = [1.15 1.24 1.19];

y1 = [191.00 187.90 173.30];

z1 = [168.70 175.70 155.10];

scatter3(x1,y1,z1)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x2 = [1.18 1.35 1.34];

y2 = [207.20 210.40 188.80];

z2 = [183.60 201.90 184.60];

scatter3(x2,y2,z2)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

scatter3(x3,y3,z3)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

scatter3(x3,y3,z3)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x4 = [0.65 0.76 0.74];

y4 = [394.73 146.90 428.90];

z4 = [196.30 236.60 273.70];

scatter3(x4,y4,z4)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x5 = [0.59 0.98 1.25];

y5 = [327.90 309.10 363.00];

z5 = [156.40 221.70 317.30];

scatter3(x5,y5,z5)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x6 = [0.54 0.60 0.79];

y6 = [308.80 244.20 245.70];

z6 = [133.60 109.70 156.10];

scatter3(x6,y6,z6)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

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Answer 1

Cris LaPierre 2022-1-28

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1637840-3d-plot-represented-in-2d#answer_883425

在 MATLAB Online 中打开

What about a stem3 plot?

x1 = [1.15 1.24 1.19];

y1 = [191.00 187.90 173.30];

z1 = [168.70 175.70 155.10];

stem3(x1,y1,z1)

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

hold on

x2 = [1.18 1.35 1.34];

y2 = [207.20 210.40 188.80];

z2 = [183.60 201.90 184.60];

stem3(x2,y2,z2)

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

stem3(x3,y3,z3)

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

stem3(x3,y3,z3)

x4 = [0.65 0.76 0.74];

y4 = [394.73 146.90 428.90];

z4 = [196.30 236.60 273.70];

stem3(x4,y4,z4)

x5 = [0.59 0.98 1.25];

y5 = [327.90 309.10 363.00];

z5 = [156.40 221.70 317.30];

stem3(x5,y5,z5)

x6 = [0.54 0.60 0.79];

y6 = [308.80 244.20 245.70];

z6 = [133.60 109.70 156.10];

stem3(x6,y6,z6)

hold off

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Cris LaPierre 2022-1-28

在 MATLAB Online 中打开

What about a 2D scatter plot where the marker color is determined by the Z value?

x1 = [1.15 1.24 1.19];

y1 = [191.00 187.90 173.30];

z1 = [168.70 175.70 155.10];

x2 = [1.18 1.35 1.34];

y2 = [207.20 210.40 188.80];

z2 = [183.60 201.90 184.60];

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

x3 = [0.65 0.92 1.33];

y3 = [258.10 211.90 192.20];

z3 = [138.20 152.60 197.30];

x4 = [0.65 0.76 0.74];

y4 = [394.73 146.90 428.90];

z4 = [196.30 236.60 273.70];

x5 = [0.59 0.98 1.25];

y5 = [327.90 309.10 363.00];

z5 = [156.40 221.70 317.30];

x6 = [0.54 0.60 0.79];

y6 = [308.80 244.20 245.70];

z6 = [133.60 109.70 156.10];

X = [x1 x2 x3 x4 x5 x6];

Y = [y1 y2 y3 y4 y5 y6];

Z = [z1 z2 z3 z4 z5 z6];

scatter(X,Y,[],Z,'filled')

xlabel('e')

ylabel('S')

zlabel('Wf')

grid on

colorbar

If you need to be able to visually connect the groups together, plot each group as its own series and then add a scatter on top, where the marker color indicates the Z value.

X = [x1' x2' x3' x4' x5' x6'];

Y = [y1' y2' y3' y4' y5' y6'];

Z = [z1' z2' z3' z4' z5' z6'];

figure

plot(X,Y,'--')

hold on

scatter(X(:),Y(:),[],Z(:),'filled')

hold off

grid on

colorbar

xlabel('e')

ylabel('S')

zlabel('Wf')

legend("Group"+[1:6],'Location','NorthOutside','NumColumns',3)

Mariia Arseenko 2022-1-28

That perfectly worked, thanks a lot!

Star Strider 2022-1-28

@Mariia Arseenko — Accepting Cris’s Answer is the best way to express your thanks.

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3D plot represented in 2D

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3D plot represented in 2D

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