绘图

本页面将会将常用的MATLAB和Mathematica命令总结出来，便于快速使用

MATLAB

MATLAB如何绘图而不显示？

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f = figure('visible','off');
plot(a)
saveas(f,'newout','fig')

MATLAB如何设置图片宽度和大小

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set(gcf,'units','normalzied','position',[x,y,width,height])

MATLAB绘图使用全屏

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f=figure('visible','on','units','normalized','outerposition',[0 0 1 1]);

MATLAB如何使用-tight-subplot

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%% Directly show figures
fig1=figure(1);
set(gcf,'units','normalized','Position', [0.1 0.1 0.6 0.8])
[ha, pos] = tight_subplot(4,4,[.05 .01],[.1 .1],[.05 .05]);
for l=1:16
    axes(ha(l));
    pcolor(x_grid,y_grid,decay_sort(:,:,l));shading interp;colormap jet;colorbar;
    axis tight
end

sgtitle('original data')

MATLAB让NAN变成0

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mat(isnan(mat))=1;

matlab打印当前时间以及显示信息

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showtext=[datestr(now, 'yyyy-mm-dd HH:MM:SS'),' Connecting to server succssfully! \n'];
fprintf(showtext);

MATLAB关闭提示信息

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w = warning('query','last');
id = w.identifier;
warning('off',id);

MATLAB导出EPS高清图片

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set(gcf,'Renderer','Painter');
hgexport(gcf,figure_save);

matlab绘图速查表

MATLAB如何改变坐标和字体

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xlabel('\omega_{1}/\Gamma','fontsize',15,'fontname','times new roman');
ylabel('\omega_{2}/\Gamma','fontsize',15,'fontname','times new roman');
set(gca,'FontName','times new roman','Fontsize',15,'XColor','k','YColor','k','LineWidth',1.3);
set(gcf,'Renderer','Painter');
hgexport(gcf,figure_save);

Mathematica

一般的线图

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ListPlot[{Thread[{x1, y1}], Thread[{x2, y2}]}, Frame -> True, 
 FrameLabel -> {"x", "y"}, Joined -> True, 
 PlotRange -> {{0, 7}, {0, 0.1}}, 
 LabelStyle -> 
  Directive[FontSize -> 20, FontFamily -> "Times", FontColor -> Black],
 FrameStyle -> Directive[Black, Thickness -> 0.005], PlotLegends -> Placed[{"Re", "Im", "Abs"}, {0.2, 0.5}]]

如何固定每一个图的轴大小是定值？

需要手动设置图的大小以及图框的填坑比例

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ImagePaddingSet = {{80, 20}, {50, 15}};
Ratio=1/1.25;

(*绘图语句*)
LabelStyle -> 
 Directive[FontSize -> 20, FontFamily -> "Helvetica", 
  FontColor -> Black], FrameStyle -> 
 Directive[Black, 
  Thickness -> 
   0.005], PlotStyle -> StyleLine, AspectRatio -> Ratio, ImagePadding \
->ImagePaddingSet, ImageSize -> 400

图例自定义形状和位置

绘制好看的点线图，可以自己设置矩形的图例

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Marker1 = Table[{Graphics[{EdgeForm[Thickness[0.1]], RGBColor[{
Rational[11, 51], 
Rational[42, 85], 
Rational[184, 255]}], Polygon[CirclePoints[4]]}], 0.04}, {i, 1, L, 
    1}];

也可以自己修改位置
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l1 = ListLinePlot[Thread[{\[Kappa]swep, SvNCea1}], 
   PlotMarkers -> Marker1, PlotRange -> {{2, 20}, {0.5, 1.6}}, 
   Frame -> True, 
   LabelStyle -> 
    Directive[FontSize -> 20, FontFamily -> "Times", 
     FontColor -> Black], 
   PlotLegends -> 
    Placed[LineLegend[{"C(e,\!\(\*SubscriptBox[\(a\), \(1\)]\),0)=1"},
       LabelStyle -> {FontFamily -> "Helvetica", FontSize -> 15, 
        Black}, LegendLayout -> {"Column", 1}], {0.5, 0.75}], 
   FrameStyle -> Directive[Black, Thickness -> 0.005], 
   FrameLabel -> {"\[Kappa]/\!\(\*SubscriptBox[\(\[Kappa]\), \(opt\)]\
\)", "SvN"}];
l2 = ListLinePlot[Thread[{\[Kappa]swep, SvNCa1a1}], 
   PlotMarkers -> Marker2, 
   PlotLegends -> 
    Placed[LineLegend[{"C(\!\(\*SubscriptBox[\(a\), \
\(1\)]\),\!\(\*SubscriptBox[\(a\), \(1\)]\),0)=1"}, 
      LabelStyle -> {FontFamily -> "Helvetica", FontSize -> 15, 
        Black}, LegendLayout -> {"Column", 1}], {0.5, 0.75}]];
Show[l1, l2] // fixTickThickness

手动设置Ticks

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p1plot = Plot[Sin[x], {x, -10, 10}, Frame -> True, 
  PlotRange -> {{-10, 10}, {-1, 1}}, 
  LabelStyle -> 
   Directive[FontSize -> 20, FontFamily -> "Times New Roman", 
    FontColor -> Black], 
  FrameStyle -> Directive[Black, Thickness -> 0.005], 
  FrameTicks -> {{Charting`ScaledTicks["Linear"][-1, 1, {5, 2}], 
     None}, {Charting`ScaledTicks["Linear"][-10, 10, {10, 2}], None}}]

Colorbar的设置

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PlotLegends -> 
 Placed[BarLegend[{"TemperatureMap", {0, pMax}}, None, 
   "Ticks" -> {0, 0.3, 0.6, 0.9, 1.2, 1.5}, LegendMarkerSize -> 125, 
   LegendMargins -> {{-15, 0}, {0, 0}}], Right]