Drawing Rectangle/Lines with data

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Chris Dan 2020-1-22

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/501519-drawing-rectangle-lines-with-data

评论： Fangjun Jiang 2020-1-24

采纳的回答： Fangjun Jiang

Hello,

I have this matrix,

The first column is the base of the rectangle, starting from 0 till 0.15 and the second column is the magnitude of the height at both ends of the rectangle,

I am having trouble drawing it,, here is my code

 x1 = 0;
 x2 = 0.15;
   
    y1 =[ 0.0120];
    y2 = [0.0120];
   
    figure
    hold on 
    plot (x1,y1,'-');
    plot(x2, y2,'-');
   
    axis([0 0.5 0 0.1])

But, I am not getting correct results, I am getting nothing in the output.

Does any one know?

采纳的回答

Fangjun Jiang 2020-1-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/501519-drawing-rectangle-lines-with-data#answer_411498

rectangle('Position',[0 0.15 0.012 0.012])
axis([0 0.02 0 0.2])

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Chris Dan 2020-1-24

Fangjun Jiang

I made this code

k = size(out,2);
 %% Drawing from the Data Files %
for i =1:1:k
    a = size(out(i).model_data,1)
    for j =1:1:(a-1)
        
        x1(j) = [out(i).model_data(j,1)];
        x2(j) = [out(i).model_data(j+1,1)];
        y1(j) =  [out(i).model_data(j,2)];
        y2(j) =  [out(i).model_data(j+1,2)];
        
        rectangle('Position',[x1(j) x2(j) y1(j) y2(j)])
         axis([0 0.02 0 0.2])
         hold on
    end
end

but the result I am getting is some thing like this

it is not right, because all the rectangles should be connected I dont know why they are not connected

Fangjun Jiang 2020-1-24

Just draw it with a pencil manually and match it with the MATLAB code. You've known rectangle(). I don't think there is any difficulty writing code here. It is more difficult to understand what you want to do.

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