How to utilize nodes to plot a 3D object?

Question

Lawrence Arabia 2017-11-30

0
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https://ww2.mathworks.cn/matlabcentral/answers/370329-how-to-utilize-nodes-to-plot-a-3d-object

回答： kowshik Thopalli 2017-11-30

F15.zip

Hi there. I am making a script that will load nodes from a .dat file, and plot out the values to make the shape of a 3D object.

Here is my current script:

clear 
clc
load('F15.dat', 'node')
node = struct('ID', 0, 'fn', 0, 'sn', 0, 'tn', 0);
node.ID = 1;
node.fn = 0;
node.sn = 0;
node.tn = 0;
node = [n;3];
face = struct('ID', 0, 'fn', 0, 'sn', 0, 'tn', 0);
face.ID = 1;
face.fn = 0;
face.sn = 0;
face.tn = 0;
face = [n;3]
   patch('Faces', F, 'Vertices', V, ...          
       'FaceColor', [1 1 0], ...          
       'FaceLighting', 'gouraud', ...           
       'FaceAlpha', 1, ...           
       'EdgeColor', 'none', ...          
       'EdgeLighting', 'gouraud', ...          
       'EdgeAlpha', 1, ...          
       'AmbientStrength', 0.3);    
   camlight headlight    
   material shiny    
   axis image    
   axis off    
   view(50,20);

It is also said that I need to store the three coordinates of all nodes, and their IDs, in two separate matrixes with a parameter of [n * 3]. The .dat file has the node, face, and bar values, but I only need to use the nodes and face types.

This is what I have so far, but I am getting an error that says the first text in the .dat file is unknown and can't be used. Can anyone help? Here is also an attached excerpt regarding the storing of data in the matrix.