Plot structure in 3D coordinate

Question

Milan 2022-11-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1857488-plot-structure-in-3d-coordinate

评论： Askic V 2022-11-21

#I am trying to plot a structure as shown in figure below with a function, but am able to get just 2D plot, can you please help with this one

function[structplot] = plotstruct(coord, ends)
%input:
%   ends:A Matrix specify the start node and end node;
%   coord: the physical World Coordinate of all nodes (in mm)
structplot = figure;
xlabel('X (mm)');
ylabel('Y (mm)');
zlabel('Y (mm)');
axis off;
hold on
axis equal
% plot elements in form of lines
for i = 1:length(ends)
    nodeA = ends(i, 1);
    nodeB = ends(i, 2);
    xLine = [coord(nodeA,1), coord(nodeB,1)];
    yLine = [coord(nodeA,2), coord(nodeB,2)];
    zLine = [coord(nodeA,3), coord(nodeB,3)];
    plot(xLine, yLine,zLine, 'Color','black')
    
    % label elements if requested
    xAv = (xLine(1) + xLine(2))/2;
    yAv = (yLine(1) + yLine(2))/2;
    zAv = (zLine(1) + zLine(2))/2;
    text(xAv, yAv,zAv, sprintf('%d', i))
    
end
% plot nodes
for i=1:length(coord)
    plot(coord(i,1),coord(i,2) , 'r*');
    text(coord(i,1),coord(i,2),sprintf('%d', i),'Color','blue');
end
end

# i have coord )coordination and ends -connectivityis the following form

coord = 1000 .*[-1 0 0;

1 0 0;

0 0 2.5;

0 1.5 2.5;

0 3 2.5;

-1 3 0;

1 3 0];

ends = [1 3;

2 3;

3 4;

4 5;

5 6;

5 7];

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Answer 1

Askic V 2022-11-20

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1857488-plot-structure-in-3d-coordinate#answer_1106283

在 MATLAB Online 中打开

This slight modification is to get you going into right direction.

function[structplot] = plotstruct(coord, ends)
    %input:
    %   ends:A Matrix specify the start node and end node;
    %   coord: the physical World Coordinate of all nodes (in mm)
    structplot = figure;
    xlabel('X (mm)');
    ylabel('Y (mm)');
    zlabel('Y (mm)');
    axis off;
    hold on;
    axis equal
    % plot elements in form of lines
    for i = 1:length(ends)
        nodeA = ends(i, 1);
        nodeB = ends(i, 2);
        xLine = [coord(nodeA,1), coord(nodeB,1)];
        yLine = [coord(nodeA,2), coord(nodeB,2)];
        zLine = [coord(nodeA,3), coord(nodeB,3)];
        plot3(xLine, yLine,zLine, 'Color','black')
        % label elements if requested
        xAv = (xLine(1) + xLine(2))/2;
        yAv = (yLine(1) + yLine(2))/2;
        zAv = (zLine(1) + zLine(2))/2;
        text(xAv, yAv,zAv, sprintf('%d', i))
    end
    % plot nodes
    for i=1:length(coord)
        plot3(coord(i,1),coord(i,2) ,coord(i,3),'r*');
        text(coord(i,1),coord(i,2),sprintf('%d', i),'Color','blue');
    end
    view(45,15);