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基本画图工具：matlab 画图中线型及颜色设置
**Matlab中的坐标轴设置技巧**
axisoff; %去掉坐标轴
axistight; %紧坐标轴
axisequal; %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/2pi]); % 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
set(gac,\'Xscale\',\'log\') % x轴以log 形式显示 xlim(min,max)
matlab画图设置图片大小以及线宽和字号命令,该文章讲述了matlab画图设置图片大小以及线宽和字号命令.
set(gcf,\'Units\',\'centimeters\',\'Position\',[1010 7 5]); %设置图片大小为7cm×5cm
%get hanlde to current axis返回当前图形的当前坐标轴的句柄,
%(the first element is the relative distance of the axes to the left edge ofthe figure,...
%the second the vertical distance from the bottom, and then the width andheight;
set(gca,\'Position\',[.13 .17 .80 .74]); %设置xy轴在图片中占的比例
set(get(gca,\'XLabel\'),\'FontSize\',8); %图上文字为8 point或小5号
set(get(gca,\'YLabel\'),\'FontSize\',8);
set(get(gca,\'TITLE\'),\'FontSize\',8);
set(gca,\'fontsize\',8);
set(gca,\'linewidth\',0.5); %坐标线粗0.5磅
set(gca,\'box\',\'off\');%Controls the box around the plotting area
set(get(gca,\'Children\'),\'linewidth\',1.5);%设置图中线宽1.5磅
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设计图
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代码
%% 普通的实现
%clear all;
% x=[8,16,32,64,128,256,512,1024,4096];
% y=[0.525,0.725,0.855,0.93,0.938,0.92,0.91,0.90,0.88];
% plot(x,y);
% xlabel(\'the number of reduced dimension\')
% ylabel(\'mean average precision\')
% axis([0 4100 0.5 1])
% %set(gca,\'xticklabel\',{\'8\',\'16\',\'32\',\'64\',\'128\',\'256\',\'512\',\'1024\',\'4096\'})
%% 技巧改进
clear all;
close all
x1={\'8\',\'16\',\'32\',\'64\',\'128\',\'256\',\'512\',\'1024\',\'2048\',\'4096\'};
x=1:10;
y=[0.525,0.725,0.855,0.93,0.938,0.92,0.91,0.90,0.89,0.88];
figure
set(gcf,\'color\',\'w\')
plot(x,y,\'r.-\',\'linewidth\',2);
set(gca,\'xticklabel\',x1)
xlabel(\'the number of reduced dimension\')
ylabel(\'mean average precision\')
axis([0.5 10.5 0.5 1]) %左右留点余地
%设置网格线的线型，使用gridlinestyle属性，默认为虚线，可以改为实线
%axes(\'GridLineStyle\', \'-\')
grid on
set(gca, \'GridLineStyle\' ,\'-\')
set(gca,\'xtick\',[1,2,3,4,5,6,7,8,10]);
%set(gca,\'XGrid\',\'on\');
%set(gca,\'XTickMode\',\'manual\',\'XTick\',[1,4,8,128,512,4096])
hold on
plot(x,y,\'b.\',\'markersize\',20);
debug=1;
%saveas(gcf, \'E:\myfigure\', \'eps\') %保存为矢量图
%% 设计思路
% figure;
% clc;
% clear all;
% x = [1,5,13,30,48,77,100,142];
% ind=1:length(x);
% y1 =[1.3,2.1,3.6,4.7,7.8,8.0,8.3,8.1];
% y2 =[0.9,1.8,5.6,6.4,8.5,9.8,9.3,9.9];
%
% plot(ind,y1,\'s-\',ind,y2,\'s-\');
% set(gca,\'XTick\',ind);
% set(gca,\'XTickLabel\',{\'1\',\'5\',\'13\',\'30\',\'48\',\'77\',\'\',\'142\'});
%)坐标轴的标尺属性:\'Xtick\',\'Ytick\',\'Ztick\'
%------ 标度的位置,值为向量\'Xticklabel\',\'Yticklabel\',\'Zticklabel\'
%------ 轴上标度的符号,它的值为与标度位置向量同样大
%用\'xtick\'属性设置x轴 刻度的位置
%用\'xticklabel\'来指定刻度的值,
- 结果
- 还有几个细节没有解决
