CODEWITHSUNDEEP
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Reputation: 5

How to make a grid In matlab with loop

I want to make a grid (Uniform Mapping) in matlab without Meshgrid.

I have make grid with meshgrid but now I just want to make it with a loop or any Second Method (without meshgrid)

This is my code using meshgrid:

  figure(6)
  [X,Y] = meshgrid(-1:0.1:1, -1:0.1:1)
  plot(X,Y,'k-')
  hold on
  plot(Y,X,'k-');

Upvotes: 0

Views: 320

Answers (1)

user2999345
user2999345

Reputation: 4195

use repmat, or multiply by ones vectors for even more basic functionality:

x = -1:0.1:1;
y = -1:0.1:1;
% with repmat
X1 = repmat(x(:)',[numel(y),1]);
Y1 = repmat(y(:),[1,numel(x)]);
% multiply with ones
X2 = ones(numel(y),1)*x(:)';
Y2 = y(:)*ones(1,numel(x));
% meshgrid
[X3,Y3] = meshgrid(x, y);
isequal(X1,X2,X3) && isequal(Y1,Y2,Y3) % true

plot(X1,Y1,'k');
hold on
plot(Y1,X1,'k');

Upvotes: 1

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