grid in matlab ? please !

I want to create a uniform grid and place all nodes in a neat and evenly spaced so the rows and columns please

[Cedric]

You'll have to make an example involving a few nodes, because what you want to achieve is not clear.

Answer 1

[Image Analyst]

myGrid = ones(10);

How about that?

[Image Analyst]

Two hours with no response - I guess it wasn't that urgent!

[Image Analyst]

mouihbi's "Answer" moved to a comment here:

thanx but I want a grid with these parameters (width, height, number of square ...) and place nodes of ordered and regularly spaced manner on the rows and columns

[Image Analyst]

myGrid = ones(height, width);

And of course, this: http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[mouihbi chaker]

thanx

[Cedric]

Also

 doc meshgrid
 doc ndgrid

[mouihbi chaker]

thank you Can you help me to place nodes (points) in an orderly manner and regularly spaced rows and columns oubien in each square of the grid

[Image Analyst]

Define what you mean by nodes and grid. Do you mean an rectangular array like an image, or a linked list, or something else. If you mean like graphs/networks, then I haven't worked with those in MATLAB. If you mean just a regular 2D numerical array then maybe I can help.

[mouihbi chaker]

table that contains for example 9 square and I want to place for example 4 points on the extremity of each square ( example position with the first square the position of the point are (0.0) (0.1) (1.0) (1.1)) and 4 points in each square (randomly without position). thanx

[Image Analyst]

myGrid = zeros(9);
myGrid(1,1) = 1;
myGrid(end,1) = 1;
myGrid(1,end) = 1;
myGrid(end,end) = 1;

[Walter Roberson]

You cannot index an array with an index of 0.

xcoords = [0 0 1 1 rand rand rand rand];
ycoords = [0 1 0 1 rand rand rand rand];
scatter(xcoords, ycoords);

Also

[xcoords, ycoords] = ndgrid(0:9, 0:9);
scatter(xcoords(:), ycoords(:));
hold on

[xcoords, ycoords] = ndrigd(0:8, 0:8);
xcoords = xcoords + rand(9, 9);
ycoords = ycoords + rand(9, 9);
scatter(xcoords(:), ycoords(:));

[mouihbi chaker]

I want to place 4 nodes in each square ?! thanx

[Image Analyst]

We're getting nowhere because you haven't sufficiently described what you want. Please give an explicit description of what you want, and I'm not talking about some 10 word sentence. I'm asking for a complete paragraph or two, complete with a screenshot, diagram, figure, web page link, or whatever illustrates what you want. Only then can we continue and stop this unproductive back and forth messaging.

Answer 2

[mouihbi chaker]

I want to place 4 nodes in each square ?! thanx