MATLAB: Extend line plot to a Surface

2d to 3d3d3d plotssurfsurface

Hey, I am trying to plot a surface but am struggling to find the right commands. I have a 2D plot of a line going diagonally down. I want to extend this line to the 3rd dimension, so that it creates a surface. Is it possible to do this in MatLab? What commands can I use. Thanks

Best Answer

x=10:-1:1; % your 2d_line
x3d=repmat(x,[numel(x),1]);
surf(x3d);

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MATLAB: Plot a 3D matrix (1 dependent & 2 independent variables)

You could use mesh or surf. As an example, consider X and Y verctors, with Z defined as sin(X) + cos(Y).

X = linspace(0,2*pi,20);
Y = linspace(0,pi,10);
[X,Y] = meshgrid(X,Y);
Z = sin(X) + cos(Y);
surf(X,Y,Z)

MATLAB: Unable to use a value of type matlab.graphics.primitive.Line as an index. How do i fix this

'line' is MATLAB's built-in function. You haven't defined it as something else in your code. Therefore, the statement

beamline(line,3)

causes error.

Best Answer

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MATLAB: Plot a 3D matrix (1 dependent & 2 independent variables)

MATLAB: Unable to use a value of type matlab.gra​phics.prim​itive.Line as an index. How do i fix this

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MATLAB: Unable to use a value of type matlab.graphics.primitive.Line as an index. How do i fix this