Axes labels in .eps file shifted using export_fig

Hi, all,

I am using export_fig to create .eps figures but encountered a problem. Both the x label and y label are not centered with respect to the axes; instead they are centered with respect to the cropped figures. I am using MATLAB2016a on a 64bit Ubuntu system. The following code were used:

x=0:0.001:3*3.1415926;

y=sin(x);

plot(x,y,'r');

axis([0 3*3.1415926 -1 1]);

xlabel('xxxxxxxxxxxxYxxxxxxxxxxxx','FontSize',16);

ylabel('yyyyyyyyyyyyXyyyyyyyyyyyy','FontSize',16);

set(gcf,'PaperPositionMode','manual');

export_fig test.eps -painters -r500 -q100 -cmyk -transparent;

Could anyone provide a solution to this problem? Thanks!

Qingjie