how to store a value in the next row?
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i want to extract the coordinates for a squar plate having length of 1m. i want to divide into 25 smaller square whose lenth is 0.2. so that i will get an array of (25,2).
x1=0; x2=1;
y1=0; y2=1;
del=0.2;
step=zeros(25,2);
for y=y1:del:y2;
    for x=x1:del:x2;
          step=[x y]
    end
end 
what i am getting from this program is 
step =
     0     0
step =
    0.2000         0
step =
    .4000         0
step =
    0.6000         0
.............................
step =
     1     1
what im actually want is 
step= 0 0
          0 0.2
         0 0.4   
         .    .
         .    .
       1     1
i want to store the value in the next row for the next loop.
0 commentaires
Réponses (1)
  Stephen23
      
      
 le 3 Sep 2020
        
      Modifié(e) : Stephen23
      
      
 le 3 Sep 2020
  
      The MATLAB approach:
>> [X,Y] = ndgrid(0:0.2:1);
>> M = [Y(:),X(:)]
M =
   0.00000   0.00000
   0.00000   0.20000
   0.00000   0.40000
   0.00000   0.60000
   0.00000   0.80000
   0.00000   1.00000
   0.20000   0.00000
   0.20000   0.20000
   0.20000   0.40000
   0.20000   0.60000
   0.20000   0.80000
   0.20000   1.00000
   0.40000   0.00000
   0.40000   0.20000
   0.40000   0.40000
   0.40000   0.60000
   0.40000   0.80000
   0.40000   1.00000
   0.60000   0.00000
   0.60000   0.20000
   0.60000   0.40000
   0.60000   0.60000
   0.60000   0.80000
   0.60000   1.00000
   0.80000   0.00000
   0.80000   0.20000
   0.80000   0.40000
   0.80000   0.60000
   0.80000   0.80000
   0.80000   1.00000
   1.00000   0.00000
   1.00000   0.20000
   1.00000   0.40000
   1.00000   0.60000
   1.00000   0.80000
   1.00000   1.00000
3 commentaires
  Stephen23
      
      
 le 4 Sep 2020
				
      Modifié(e) : Stephen23
      
      
 le 4 Sep 2020
  
			"but it shows ...Error: Invalid use of operator."
Lets have a look:
>> [X,Y] = ndgrid(0:0.2:1);
>> M = [Y(:),X(:)] % my code (no spaces, no error)
M =
         0         0
         0    0.2000
... more lines here
    1.0000    0.6000
    1.0000    0.8000
    1.0000    1.0000
>> M = [Y (:),X (:)] % your code (add spaces -> error)
 M = [Y (:),X (:)]
         ↑
Error: Unexpected MATLAB operator.
>>
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