Plot structure in 3D coordinate

#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];

Answer 1

[Askic V]

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);

[Milan]

Thanks, this worked out! What's is the meaning of view (45,15) which seems to have different effect?

[Askic V]

This is an extract from the documentation:

view(az,el) sets the azimuth and elevation angles of the camera's line of sight for the current axes.

check the documentation with

doc view

You can play with it and see how it works.