MATLAB: Convert 3D polygon into homogeneous matrix

3d polygon

Hi. I have defined a 3D polygon creating a vertice and a face matrix to use the function Patch. Now i would like to know: how do i transform my 3D polygon in an homogeneous matrix.

Any clues ?

Thanks for the help.

Best Answer

The matrix "vert" in your code is your homogenous matrix for your purposes described in your comment.

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MATLAB: How to make this truck move across the bridge in an animation

First of all, nice lorry (slow-clap).

Here's how to make it drive forward along the x axis. You could add a Y-component of motion very easily.

% What is the final position of the front
% of the lorry along the x-axis?
maxX = 35;
% How far should the lorry travel on each frame/loop?
% For faster velocity, use higher value. 
stepSize = 0.2;
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% the front of the lorry reaches "maxX". 
arrived = false;
while ~arrived
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    lorry(2).Vertices(:,1) = lorry(2).Vertices(:,1) + stepSize;
    lorry(3).XData = lorry(3).XData + stepSize;
    lorry(4).XData = lorry(4).XData + stepSize;
    lorry(5).XData = lorry(5).XData + stepSize;
    lorry(6).XData = lorry(6).XData + stepSize;
    
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    %pause(0.2) 
    
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MATLAB: Make faces of cube transparent

patch('Vertices',vert,'Faces',fac,...
      'FaceVertexCData',hsv(6),'FaceColor','flat', ...
      'FaceAlpha', 0.5);   % <== Add this

Best Answer

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