How can I make my function plot lines to make a rectangle?

Question

Eduardo Gallegos 2022-11-23

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1860338-how-can-i-make-my-function-plot-lines-to-make-a-rectangle

编辑： Florian Bidaud 2022-11-23

采纳的回答： Florian Bidaud

Hi, I can't figure out how to make my function plot lines.

Here is my code.

clear all, format compact, format shortg; close all; fclose all; clc;

% Rectangle 1

rect1.pos= [30,20]; % x and y coordinates of the lower left corner

rect1.width = 500;

rect1.height= 400;

rect1.color = 'b';

figure(1)

draw_rect_Eduardo_Gallegos_call(rect1)

axis equal;

% Rectangle 2

rect2.pos= [350,300]; % x and y coordinates of the lower left corner

rect2.width = 220;

rect2.height= 250;

rect2.color = 'r';

draw_rect_Eduardo_Gallegos_call(rect2)

% Rectangle 3

rect3.pos= [300,250]; % x and y coordinates of the lower left corner

rect3.width = 150;

rect3.height= 400;

rect3.color = 'c';

hold on;

draw_rect_Eduardo_Gallegos_call(rect3)

Here is the function code

function [] = draw_rect_Eduardo_Gallegos_call(rect)

plot(rect.height,rect.width,'o' )

end

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Answer 1

Florian Bidaud 2022-11-23

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1860338-how-can-i-make-my-function-plot-lines-to-make-a-rectangle#answer_1109358

编辑：Florian Bidaud 2022-11-23

在 MATLAB Online 中打开

Hi,

Your function just plots one point. You need to plot all the points of your rectangle, and closing it by returning at the first point.

This should work as you want

function [] = draw_rect_Eduardo_Gallegos_call(rect)
    plot([rect.pos(1) rect.pos(1) rect.pos(1)+rect.width rect.pos(1)+rect.width rect.pos(1)], ...
        [rect.pos(2) rect.pos(2)+rect.height rect.pos(2)+rect.height rect.pos(2) rect.pos(2)], ...
        'Color',rect.color)
end