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Rectangular Box plotting from four co-ordinate

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BILLAL Hossain
BILLAL Hossain 2021-9-8
回答： Chunru 2021-9-9
Hi, I am trying to plot a rectangular box in a xlim([0 25]) ylim([0 25]). I have co-ordinate values of four point and tried following code:
x_points = [x1 x2 x3 x4];
y_points = [y1 y2 y3 y4];
caustom_plot=plot(x_points,y_points,'k','Linewidth',2);
It shows a rectangular shape but one side is open. How can i fix the issue?

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Chunru
Chunru 2021-9-9
caustom_plot=plot(x_points([1:end 1]),y_points([1:end 1]),'k','Linewidth',2);

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