How can I draw a trajectory like this?

Question

Zeinab Ahmadi93 2017-6-28

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346613-how-can-i-draw-a-trajectory-like-this

评论： Zeinab Ahmadi93 2017-7-2

IMG_20170628_185227.jpg

Hello everybody Would you help me draw a trajectory like this using sin and cos functions but not with these stars, I want it with solid and continuous line.I have found this piece of code but i couldn't get a clue. Thanks in advance.

c1=30;
c2=30;
for j=1:3
  for i=1:1:8 %%%2nd for loop for no. of S in the column  
      if(mod(i,2)~=0) %%%for C structure and opposite C structure 
          th = linspace( pi/2, -pi/2, 10);
          for k=1:1:length(th)
              anchormove(1,idx) = r *-cos(th(k)) + c1; 
              anchormove(2,idx) = r *-sin(th(k)) + c2;
              idx=idx+1; 
            end
        else 
           th = linspace( -pi/2, pi/2, 10);
           for k=1:1:length(th)
               anchormove(2,idx) = r * sin(th(k)) + c2;
               anchormove(1,idx) = r * cos(th(k)) + c1;               
               idx=idx+1;
           end
        end 
        c2=c2+60;
    end
    lastmove=anchormove(2,idx-1); 
    for i=anchormove(1,idx-1):10: anchormove(1,idx-1)+(r+60)
        anchormove(1,idx) = i; 
        anchormove(2,idx) = lastmove; 
        idx=idx+1;
    end    
    c2=450;
    c1=c1+90;
    for i=1:1:8 %%%2nd for loop for no. of S in the column  
        if(mod(i,2)~=0) %%%for C structure and opposite C structure 
            th = linspace( pi/2, -pi/2, 10);
            for k=1:1:length(th)
                anchormove(1,idx) = r *cos(th(k)) + c1; 
                anchormove(2,idx) = r *sin(th(k)) + c2;
                idx=idx+1; 
                         Ax=anchormove(1,i);
    Ay=anchormove(2,i);
    plot(Ax,Ay,'r*')

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Answer 1

Image Analyst 2017-6-28

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346613-how-can-i-draw-a-trajectory-like-this#answer_272243

Use 'r-' instead of 'r*'.

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Image Analyst 2017-6-28

编辑：Image Analyst 2017-6-28

Attach your code here. I'm not going out to any third party site when you can attach it here with the paper clip icon. Your code as pasted above doesn't work. There are at least 3 "end" statement missing. I don't know where to put them because the formatting and indenting is all messed up. You can type control-a then control-i to fix indenting before pasting here. Please post code that runs.

Zeinab Ahmadi93 2017-7-2

Ok Thanks dear Image Analyst for your guidance...I corrected my code and it runs. But I have another question, Would you please help me. I posted it here

https://www.mathworks.com/matlabcentral/answers/347079-how-can-i-set-an-equal-distance-of-5-units-between-the-red-star-points

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