Exporting a figure containing subplots to pdf in exact dimensions

Hi, I have been struggling with this issue for quite a long time. I have this code:-

 y = -16.55 : 0.01: 16.55;
 xpos = 10.5361 * cos(y/10.5361) * (pi/20);
 x = [-xpos,xpos];
 y = [y,-y];

 a1 = subplot(1,4,1);
 fill(x,y,'r');

 a2 = subplot(1,4,2);
 fill(x,y,'g');

 a3 = subplot(1,4,3);
 fill(x,y,'o');

 a4 = subplot(1,4,4);
 fill(x,y,'w');

 set(a1,'Units','centimeters','Position',[0 0 5 36]);
 set(a2,'Units','centimeters','Position',[5.5 0 5 36]);
 set(a3,'Units','centimeters','Position',[11 0 5 36]);
 set(a4,'Units','centimeters','Position',[16.5 0 5 36]);

I want to export this whole figure to pdf (including the part not visible on screen) in exact dimensions but what is appearing in the pdf is only the part visible on the screen. I checked out this link but this is not working with subplots. Please help.

Answer 1

[Star Strider]

Experiment with the 'OuterPosition', 'PaperPosition', and other Figure Properties. They seemed a partial solution, but since I don’t know exactly what you want, I will leave you to find the optimal settings for them.

[Soumyadip]

I just want the entire plot printed in same dimensions, i.e, it should be of length 33.1(2 x 16.55) cm and width as calculated from the equation. Any method would do.