How i can map data axis (x,y) ->(10x10) area to a large (100x100) area?

I have a data set in the range of (x[0 10], y[0 10]) so i want to plot this data in the area of 100x100 so that It can give a larger view of the data set. I want to expand this with respect to data ? how i can do this ? Need your guidance.

Answer 1

[Stephen23]

You don't need to change your data, just change the axes limits to zoom into the data that you want to see. Try something like this:

xlim([0,10])
ylim([0,10])

There are plenty of options, so read the documentation too:

http://de.mathworks.com/help/matlab/ref/xlim.html

http://de.mathworks.com/help/matlab/ref/ylim.html

http://de.mathworks.com/help/matlab/ref/zlim.html

EDIT: multiply the data by 10. This seems to be what the OP is wanting to do.

[Arsal15]

 Stephen Cobeldick,

But it is limiting my plot to this axis. I want some thing like this as below.

if true
   xupp = 500; yupp = 450;
   npts = 1000;
   xr = rand (1 , npts) * xupp ;
   yr = rand (1 , npts) * yupp ;
end

But the problem is that here points x and y positions are generated randomly in the given area and given number of points are fixed but in my case I have date for x and y position for 5 different mobile robots.

so I want to plot that data in the area of 100x100.

I hope might be this can clear my point?

Thanks

[Stephen23]

Not clear, I am afraid. Why exactly does setting the axis limits not work ?

Why do you want to change your data, as opposed to just fitting the axes?

What does "But it is limiting my plot to this axis" mean?

"I have date for x and y position for 5 different mobile robots" so plot it, and the axes will scale themselves to fit your data. You do not need to change the data, and this would normally not be a good way to program.

How did you generate the figure in your question?

[Image Analyst]

Not sure what "limiting my plot to this axis." means. It should "zoom" your plot in so that the 0-10 range will now take up the same real estate on your screen that the old 0-100 range did before. Is that not the case?

[Arsal15]

@Stephen Cobeldick, Well "limiting my plot to this axis mean i have my data in [0 10] in both axis but I want it should give me a view in [0 100] in both axis. Well the setting of limits work but it is plotting my graph in [0 10] range in both axis. But i want to expand it to [0 100] area in both axis.

if true
  colorstring = 'mbybgkkcrr';
  figure;
  hold on;
  for nodeIndex = 1:numNodes
plot( nodep(nodeIndex).x(1:end), nodep(nodeIndex).y(1:end),'*',
'color',colorstring(nodeIndex));
text(nodep(nodeIndex).x(1), nodep(nodeIndex). y(1), 'SP','Color','r' ,'FontSize',20);
text(nodep(nodeIndex).x(end),nodep(nodeIndex).y(end), 'EP','Color','r','FontSize',20);
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);       
xlim ([0 10]); ylim ([0 10]);
  end
end

@Image Analyst It plot in so that the data in 0-10 range get the view of 0-100 range.

It will now take up the same real estate on my screen that the old 0-10 range did before. Is

that not the case?

[Stephen23]

The obvious answer is to multiply your X and Y values by 10. But it still seems rather bizarre to prefer to change the data rather than simply zoom the axes.