Drawing polygon from lines

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Tchilabalo 2020-9-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/595738-drawing-polygon-from-lines

评论： VBBV 2020-9-18

I have polygon as shown in Fig1. I also know the coordinates of the vertices. I now want to use those vertices to create a serie of lines that reproduce the same polygon. I have the following code, but can't reproduce the initial figure (see Fig2). I know the "patch" function can be used but it doesn't serve my goal.

clear all
Vertex_X=[30;43;49;45;22;19;30;43;89;28;30;28;0;19;54;45;49;89;54;89;96;66];%X coordinate of vertex
Vertex_Y=[38;40;55;69;66;41;38;40;0;16;38;16;19;41;86;69;55;44;86;44;40;100];%Y coordinate of vertex
 
for i=1:(length(Vertex_X)-1)
    X1(i)=Vertex_X(i);
    Y1(i)=Vertex_Y(i);
    X2(i)=Vertex_X(i+1);
    Y2(i)=Vertex_Y(i+1);
end
A=[X1 Y1];
B=[X2 Y2];
plot(A.',B.','LineWidth', 0.75)