Matlab中的坐标轴设置技巧

 

axis off;                       % 去掉坐标轴
axis tight;                     % 紧坐标轴
axis equal;                     % 等比坐标轴
axis([-0.1, 8.1, -1.1, 1.1]);   % 坐标轴的显示范围

x = -pi/2:0.01:pi; 
plot(x,sin(x))                  %先绘制个基本图形

% gca: gca, h=figure(...);
set(gca, 'XLim',[-pi/2 pi]);                   % X轴的数据显示范围
set(gca,'XTick',[-pi/2:pi/4:pi]);         % X轴的记号点 
set(gca,'XTickLabel',{'-pi/2' '-pi/4:' '0' 'pi/4' 'pi/2' 'pi*3/4' 'pi'})   % X轴的记号
set(gca, 'XGrid','on');                    % X轴的网格
set(gca, 'XDir','reverse');                % 逆转X轴
set(gca, 'XColor','red');                  % X轴的颜色