├── CoorFromAxis2Fig.m ├── DrawAxisWithArrow.m ├── DrawLine.m ├── FigPointLabel.m ├── README.md ├── SaveFig2Img.m ├── demo01.m ├── demo02.m ├── demo03.m ├── demo04.m └── figures ├── demo01.png ├── demo02.png ├── demo03.png └── demo04.png /CoorFromAxis2Fig.m: -------------------------------------------------------------------------------- 1 | function [fp] = CoorFromAxis2Fig(h_axi, ap) 2 | %CoorFromAxis2Fig - 将点在 axis 的坐标转换为该点在 figure 上的坐标 3 | % 4 | % Syntax: [fp] = CoorFromAxis2Fig(h_axi, ap) 5 | % 6 | % Input: h_axi 坐标轴句柄 7 | % ap 点在h_axi上的坐标 8 | % 9 | % Output: 10 | % fp 该点在figure上的坐标 11 | 12 | x_range = get(h_axi, 'XLim'); % axis的x轴范围 13 | y_range = get(h_axi, 'YLim'); % axis的y轴范围 14 | rec = get(h_axi, 'Position'); % axis在fig的坐标(x,y,w,h) 15 | fp(1) = (ap(1)-x_range(1))*rec(3) / (x_range(2)-x_range(1)) + rec(1); 16 | fp(2) = (ap(2)-y_range(1))*rec(4) / (y_range(2)-y_range(1)) + rec(2); 17 | 18 | end 19 | 20 | -------------------------------------------------------------------------------- /DrawAxisWithArrow.m: -------------------------------------------------------------------------------- 1 | function [xarrow, yarrow] = DrawAxisWithArrow(h_axi, varargin) 2 | %DrawAxisWithArrow - 绘制带箭头的坐标轴 3 | % 4 | % Syntax: [xarrow, yarrow] = DrawAxisWithArrow(h_axi[, param]) 5 | % 6 | % Input: h_axi 坐标轴句柄 7 | % param 可选参数，要求输入参数为一个结构体，成员如下： 8 | % Color 坐标轴的颜色 9 | % HeadWidth 箭头大小 10 | % XLabel x轴的标签(在箭头上方) 11 | % YLabel y轴的标签(在箭头右方) 12 | % Olabel 原点的标签(两坐标轴交点的左下角) 13 | % XyVisible 可选值为x,y,xy(默认), 表示可视化的轴 14 | % 若结构体未包含某项成员，则使用默认值 15 | % 16 | % Output: xarrow x坐标轴对象 17 | % yarrow y坐标轴对象 18 | 19 | %% 输入参数处理 20 | n = length(varargin); 21 | if n == 0 22 | arrow_color = [0.7, 0.62, 1]; % arrow 的默认颜色 23 | head_width = 6; % 箭头的默认大小 24 | xy_visible = 'xy'; % 显示x轴和y轴 25 | xlabel_str = ''; % x 轴的标签 26 | ylabel_str = ''; % y 轴的标签 27 | olabel_str = ''; % x 轴与y轴交点的标签 28 | elseif n == 1 29 | % 坐标轴颜色 30 | if isfield(varargin{1}, 'Color') 31 | arrow_color = varargin{1}.Color; 32 | else 33 | arrow_color = [0.7, 0.62, 1]; 34 | end 35 | % 箭头大小 36 | if isfield(varargin{1}, 'HeadWidth') 37 | head_width = varargin{1}.HeadWidth; 38 | else 39 | head_width = 6; 40 | end 41 | % x轴标签 42 | if isfield(varargin{1}, 'XLabel') 43 | xlabel_str = varargin{1}.XLabel; 44 | else 45 | xlabel_str = ''; 46 | end 47 | % y轴标签 48 | if isfield(varargin{1}, 'YLabel') 49 | ylabel_str = varargin{1}.YLabel; 50 | else 51 | ylabel_str = ''; 52 | end 53 | % 原点标签 54 | if isfield(varargin{1}, 'OLabel') 55 | olabel_str = varargin{1}.OLabel; 56 | else 57 | olabel_str = ''; 58 | end 59 | % 显示的坐标轴 60 | if isfield(varargin{1}, 'XyVisible') 61 | xy_visible = varargin{1}.XyVisible; 62 | else 63 | xy_visible = 'xy'; 64 | end 65 | else 66 | error('DrawAxisWithArrow: 输入参数太多'); 67 | end 68 | 69 | %% 获得坐标原点的位置， 70 | % 若坐标轴的范围不包含坐标原点，则选择最靠近原点的一角作为坐标轴的交点， 71 | % 坐标轴的箭头指向正向 72 | x_range = get(h_axi, 'XLim'); 73 | y_range = get(h_axi, 'YLim'); 74 | op = [0, 0]; % 默认交点为坐标原点 75 | if x_range(1) > 0 76 | op(1) = x_range(1); 77 | elseif x_range(2) < 0 78 | op(1) = x_range(2); 79 | else 80 | op(1) = 0; 81 | end 82 | if y_range(1) > 0 83 | op(2) = y_range(1); 84 | elseif y_range(2) < 0 85 | op(2) = y_range(2); 86 | else 87 | op(2) = 0; 88 | end 89 | op = CoorFromAxis2Fig(h_axi, op); % 转换为在fig上的坐标 90 | 91 | % 获得axis的坐标 92 | axis_rec = get(h_axi, 'Position'); % axis在fig的坐标(x,y,w,h) 93 | % 获得fig句柄 94 | h_fig = get(h_axi, 'Parent'); 95 | % 绘制 x 坐标轴 96 | if find('x'==xy_visible) 97 | xarrow_x = [axis_rec(1)-0.05*axis_rec(3), axis_rec(1)+1.05*axis_rec(3)]; 98 | xarrow_y = [op(2), op(2)]; 99 | xarrow = annotation(h_fig, 'arrow', xarrow_x, xarrow_y); 100 | set(xarrow, 'HeadStyle', 'plain', 'HeadWidth', head_width, 'Color', arrow_color); 101 | end 102 | % 绘制 y 坐标轴 103 | if find('y'==xy_visible) 104 | yarrow_x = [op(1), op(1)]; 105 | yarrow_y = [axis_rec(2)-0.05*axis_rec(4), axis_rec(2)+1.05*axis_rec(4)]; 106 | yarrow = annotation(h_fig, 'arrow', yarrow_x, yarrow_y); 107 | set(yarrow, 'HeadStyle', 'plain', 'HeadWidth', head_width, 'Color', arrow_color); 108 | end 109 | % 关闭默认的坐标轴 110 | set(h_axi, 'Visible', 'off'); 111 | 112 | %% 是否显示坐标标签 113 | if xlabel_str 114 | XArrowLabel(xarrow, xlabel_str); 115 | end 116 | if ylabel_str 117 | YArrowLabel(yarrow, ylabel_str); 118 | end 119 | if olabel_str 120 | OriginLabel(op, olabel_str); 121 | end 122 | 123 | end 124 | 125 | function YArrowLabel(arrow, str) 126 | % 给 y 坐标轴添加标签 127 | p = [0, 0]; 128 | arrow_x = get(arrow, 'X'); 129 | arrow_y = get(arrow, 'Y'); 130 | p(1) = arrow_x(2); 131 | p(2) = arrow_y(2); 132 | 133 | param.Color = [0.8, 0.52, 0.98]; 134 | param.FontSize = 14; 135 | 136 | FigPointLabel(p, str, 'east', param); 137 | end 138 | 139 | function XArrowLabel(arrow, str) 140 | % 给 x 坐标轴添加标签 141 | p = [0, 0]; 142 | arrow_x = get(arrow, 'X'); 143 | arrow_y = get(arrow, 'Y'); 144 | p(1) = arrow_x(2); 145 | p(2) = arrow_y(2); 146 | 147 | param.Color = [0.8, 0.52, 0.98]; 148 | param.FontSize = 14; 149 | 150 | FigPointLabel(p, str, 'north', param); 151 | end 152 | 153 | function OriginLabel(p, str) 154 | % 给 x 坐标轴添加标签 155 | param.Color = [0.8, 0.52, 0.98]; 156 | param.FontSize = 14; 157 | 158 | FigPointLabel(p, str, 'southwest', param); 159 | end 160 | -------------------------------------------------------------------------------- /DrawLine.m: -------------------------------------------------------------------------------- 1 | function line_obj = DrawLine(h_axi, pnt1, pnt2, varargin) 2 | %DrawLine 在图窗上绘制直线，可设置端口类型和直线类型 3 | % 4 | % Syntax: line_obj = DrawLine(h_axi, pnt1, pnt2[, param]) 5 | % 6 | % Input: h_axi 坐标轴句柄 7 | % pnt1 端点1在坐标轴上的坐标 8 | % pnt2 端点2在坐标轴上的坐标 9 | % param 可选参数，要求输入参数为一个结构体，成员如下： 10 | % Type 参考值 'line', 'arrow', 'doublearrow' 11 | % Color 颜色 12 | % LineStyle 线型 13 | % LineWitdh 线宽 14 | % HeadStyle 箭头的类型 15 | % 16 | % Output: line_obj 图形对象 17 | % 18 | % Note: 自动根据直线长度调整箭头大小 19 | 20 | %% 输入参数处理 21 | n = length(varargin); 22 | if n == 0 23 | type = 'line'; 24 | % type = 'arrow'; 25 | % type = 'doublearrow'; 26 | 27 | color = [0.8, 0.52, 0.98]; 28 | line_style = '-'; 29 | line_width = 0.5; 30 | head_style = 'vback2'; 31 | 32 | elseif n == 1 33 | % 绘制类型 34 | if isfield(varargin{1}, 'Type') 35 | type = varargin{1}.Type; 36 | else 37 | type = 'line'; 38 | end 39 | 40 | % 颜色 41 | if isfield(varargin{1}, 'Color') 42 | color = varargin{1}.Color; 43 | else 44 | color = [0.8, 0.52, 0.98]; 45 | end 46 | 47 | % 线型 48 | if isfield(varargin{1}, 'LineStyle') 49 | line_style = varargin{1}.LineStyle; 50 | else 51 | line_style = '-'; 52 | end 53 | 54 | % 线宽 55 | if isfield(varargin{1}, 'LineWitdh') 56 | line_width = varargin{1}.LineWitdh; 57 | else 58 | line_width = 0.5; 59 | end 60 | 61 | % 箭头类型 62 | if isfield(varargin{1}, 'HeadStyle') 63 | head_style = varargin{1}.HeadStyle; 64 | else 65 | head_style = 'vback2'; 66 | end 67 | 68 | else 69 | 70 | error('Function DrawLine: 输入参数过多！') 71 | 72 | end 73 | 74 | %% 75 | fpnt1 = CoorFromAxis2Fig(h_axi, pnt1); 76 | fpnt2 = CoorFromAxis2Fig(h_axi, pnt2); 77 | line_obj = annotation(type, [fpnt1(1), fpnt2(1)], [fpnt1(2), fpnt2(2)]); 78 | line_obj.LineStyle = line_style; 79 | line_obj.LineWidth = line_width; 80 | line_obj.Color = color; 81 | 82 | line_length = sqrt(sum((fpnt1-fpnt2).^2)); 83 | if line_length < 0.1 84 | head_size = line_length*0.4*(h_axi.Parent.Position(3))*72/96; 85 | elseif line_length < 0.15 86 | head_size = line_length*0.2*(h_axi.Parent.Position(3))*72/96; 87 | else 88 | head_size = 10; 89 | end 90 | 91 | head_size = min(10, head_size); 92 | 93 | if strcmp(type, 'arrow') 94 | line_obj.HeadWidth = head_size; 95 | line_obj.HeadLength = head_size; 96 | line_obj.HeadStyle = head_style; 97 | end 98 | 99 | if strcmp(type, 'doublearrow') 100 | line_obj.Head1Width = head_size; 101 | line_obj.Head2Width = head_size; 102 | line_obj.Head1Length = head_size; 103 | line_obj.Head2Length = head_size; 104 | line_obj.Head1Style = head_style; 105 | line_obj.Head2Style = head_style; 106 | end 107 | 108 | end 109 | -------------------------------------------------------------------------------- /FigPointLabel.m: -------------------------------------------------------------------------------- 1 | function FigPointLabel(p, str, loc, varargin) 2 | %FigPointLabel - 向figure上的点添加文本说明 3 | % 4 | % Syntex: FigPointLabel(p, str, loc[, param]) 5 | % 6 | % Input: p 点在figure上的坐标 7 | % str 待标注的文本 8 | % loc 文本相对点的位置, 可选值包括： 9 | % east, west, south, north, northwest, northeast, southwest, southeast 10 | % param 可选参数，要求输入参数为一个结构体，成员如下： 11 | % Color 字体的颜色 12 | % FontSize 字体大小 13 | % 若结构体未包含某项成员，则使用默认值 14 | % 15 | % Output: None 16 | 17 | %% 输入参数处理 18 | n = length(varargin); 19 | if n == 0 20 | color = [0.8, 0.52, 0.98]; % label 的默认颜色 21 | fontsize = 14; % 字体的默认大小 22 | elseif n == 1 23 | if isfield(varargin{1}, 'Color') 24 | color = varargin{1}.Color; 25 | else 26 | waring("FigPointLabel: Color设置为默认值\n"); 27 | color = [0.8, 0.52, 0.98]; 28 | end 29 | if isfield(varargin{1}, 'FontSize') 30 | fontsize = varargin{1}.FontSize; 31 | else 32 | fontsize = 14; 33 | waring("FigPointLabel: FontSize设置为默认值\n"); 34 | end 35 | else 36 | error('FigPointLabel: 输入参数太多'); 37 | end 38 | 39 | %% 在坐标轴上的指定某点添加标注 40 | ptx = p(1); pty = p(2); 41 | switch loc 42 | case 'north' 43 | label_pos = [ptx-0.05, pty-0.01, 0.1, 0.1]; 44 | hAlign = 'center'; 45 | vAlign = 'bottom'; 46 | case 'south' 47 | label_pos = [ptx-0.05, pty-0.1, 0.1, 0.1]; 48 | hAlign = 'center'; 49 | vAlign = 'top'; 50 | case 'east' 51 | label_pos = [ptx, pty-0.05-0.008, 0.1, 0.1]; 52 | hAlign = 'left'; 53 | vAlign = 'middle'; 54 | case 'west' 55 | label_pos = [ptx-0.1, pty-0.05-0.008, 0.1, 0.1]; 56 | hAlign = 'right'; 57 | vAlign = 'middle'; 58 | case 'northwest' 59 | label_pos = [ptx-0.1, pty-0.01, 0.1, 0.1]; 60 | hAlign = 'right'; 61 | vAlign = 'bottom'; 62 | case 'northeast' 63 | label_pos = [ptx, pty-0.01, 0.1, 0.1]; 64 | hAlign = 'left'; 65 | vAlign = 'bottom'; 66 | case 'southwest' 67 | label_pos = [ptx-0.1, pty-0.1, 0.1, 0.1]; 68 | hAlign = 'right'; 69 | vAlign = 'top'; 70 | case 'southeast' 71 | label_pos = [ptx, pty-0.1, 0.1, 0.1]; 72 | hAlign = 'left'; 73 | vAlign = 'top'; 74 | otherwise 75 | label_pos = [ptx-0.05, pty-0.01, 0.1, 0.1]; 76 | hAlign = 'center'; 77 | vAlign = 'bottom'; 78 | end 79 | annotation(gcf, 'textbox', ... 80 | label_pos, ... 81 | 'Color', color, ... 82 | 'String', str, ... 83 | 'Interpreter', 'latex', ... 84 | 'FontSize', fontsize, ... 85 | 'EdgeColor', 'None', ... 86 | 'FitBoxToText', 'On', ... 87 | 'VerticalAlignment', vAlign, ... 88 | 'HorizontalAlignment', hAlign); 89 | end -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # MatlabDrawNiceGraph 2 | > Hi! I am 002! Let's draw more beautiful graphics by using Matlab. 3 | 4 | 你好，我是002！创建此仓库的主要目的是使用Matlab绘制各种好看的图形。你可以根据自己的需求和喜好，复制、修改此仓库的代码。目前实现的功能有： 5 | 6 | - [MatlabDrawNiceGraph](#matlabdrawnicegraph) 7 | - [创建带箭头的坐标系](#创建带箭头的坐标系) 8 | - [在坐标轴上绘制线段、单箭头和双箭头](#在坐标轴上绘制线段单箭头和双箭头) 9 | 10 | --- 11 | 12 | ## 创建带箭头的坐标系 13 | 14 | **实现如下效果：** 15 | 16 | | | | | 17 | | -------------------------------------------------- | -------------------------------------------------- | -------------------------------------------------- | 18 | 19 | 22 | 23 | 以上结果分别是运行 `demo01.m`，`demo02.m`，`demo03.m` 得到的结果，其中使用到的API功能描述如下，函数实现和用法详见源码和实例。 24 | 25 | - `DrawAxisWithArrow` **自动确定**坐标原点在图窗的位置，并以此来绘制带箭头的坐标轴； 26 | 27 | - `CoorFromAxis2Fig` 进行坐标转换，将点在坐标轴(axis)上的坐标转换为在图窗(figure)的归一化坐标； 28 | 29 | - `FigPointLabel` 在图窗上的某点附近添加文字。结合函数 `CoorFromAxis2Fig`，可以很方便在 axis 上添加文字（只需知道该点在 axis 的坐标），如 `demo03` 中坐标轴上的标注均是使用此函数添加的； 30 | 31 | - `SaveFig2Img` 保存图窗； 32 | 33 | **代码实例(demo01.m)** 34 | 35 | ```matlab 36 | figure('color', [0.15, 0.15, 0.15]); 37 | x = linspace(-3, 4, 100); 38 | y = x.^2; 39 | plot(x, y, 'Color', [0,1,1], 'LineWidth', 1.5); 40 | % 调用 DrawAxisWithArrow 即可在当前坐标轴绘制带箭头坐标轴 41 | param = struct('XLabel', '$x$', 'YLabel', '$y$', 'OLabel', '$O$'); 42 | DrawAxisWithArrow(gca, param); 43 | ``` 44 | 45 | `demo02.py` 是测试在多坐标轴下的运行结果；`demo03.m` 相对前面两个demo实现起来代码稍微冗长繁琐一些（这是一个理想低通滤波器的单位阶跃响应）。 46 | 47 | --- 48 | 49 | ## 在坐标轴上绘制线段、单箭头和双箭头 50 | 51 | **实现如下效果** 52 | 53 | 同样是调用 `annotation` + `CoorFromAxis2Fig`（图窗和坐标轴的坐标转换）来实现，比较简单。为方便调用封装成一个 API：`DrawLine`。 54 | 55 | 运行 `demo04.m` 输出结果如下图所示。有关[直线](https://ww2.mathworks.cn/help/matlab/ref/matlab.graphics.shape.arrow-properties.html)和[箭头](https://ww2.mathworks.cn/help/matlab/ref/matlab.graphics.shape.arrow-properties.html)的属性可上官网查看。 56 | 57 |
58 | 59 |
60 | 61 | -------------------------------------------------------------------------------- /SaveFig2Img.m: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/songWreng/MatlabDrawNiceGraph/ff0f395c21385d9869a33374bbfd85e3342b8345/SaveFig2Img.m -------------------------------------------------------------------------------- /demo01.m: -------------------------------------------------------------------------------- 1 | clear; 2 | 3 | figure('color', [0.15, 0.15, 0.15]); 4 | x = linspace(-3, 4, 100); 5 | y = x.^2; 6 | plot(x, y, 'Color', [0,1,1], 'LineWidth', 1.5); 7 | % 调用 DrawAxisWithArrow 即可在当前坐标轴绘制带箭头坐标轴 8 | param = struct('XLabel', '$x$', 'YLabel', '$y$', 'OLabel', '$O$'); 9 | DrawAxisWithArrow(gca, param); 10 | 11 | %% 保存图像 12 | if true 13 | img_name = SaveFig2Img(gcf, 'figures\demo01.png'); 14 | fprintf('图像保存为: %s\n', img_name); 15 | end -------------------------------------------------------------------------------- /demo02.m: -------------------------------------------------------------------------------- 1 | clear 2 | %% 设置fig背景为深色模式 3 | back_color = [0.15, 0.15, 0.15]; 4 | h_f = figure('Color', back_color); 5 | 6 | %% 绘制 sin 7 | sin_axis = subplot(211); 8 | x = linspace(-3*pi, 3*pi, 200); 9 | y = sin(x); 10 | plot(sin_axis, x, y, 'g-'); 11 | xlim([-3*pi, 3*pi]); 12 | ylim([-1.2, 1.2]); 13 | % 绘制坐标轴 14 | param = struct('XLabel', '$x$', 'YLabel', '$\sin x$', 'OLabel', '$O$'); 15 | DrawAxisWithArrow(sin_axis, param); 16 | 17 | %% 绘制 cos 18 | cos_axis = subplot(212); 19 | y2 = cos(x); 20 | plot(cos_axis, x, y2, 'y-'); 21 | xlim([-3*pi, 3*pi]); 22 | ylim([-1.2, 1.2]); 23 | param = struct('XLabel', '$x$', 'YLabel', '$\cos x$', 'OLabel', '$O$'); 24 | DrawAxisWithArrow(cos_axis, param); 25 | 26 | %% 保存为图像 27 | if true 28 | img_name = SaveFig2Img(h_f, 'figures\demo02.png'); 29 | fprintf('图像保存为: %s\n', img_name); 30 | end -------------------------------------------------------------------------------- /demo03.m: -------------------------------------------------------------------------------- 1 | clear 2 | %% 创建 figure, 并设置背景颜色 3 | back_color = [0.15, 0.15, 0.15]; 4 | h_f = figure('Color', back_color); 5 | 6 | %% 创建 axes 7 | h_a = axes('Parent', h_f); 8 | set(h_a, 'NextPlot', 'add'); % 相当于 hold on 9 | 10 | %% 创建 plot 11 | % 绘制正弦积分函数 12 | fun = @(x)(sinc(x/pi)); 13 | x = linspace(-1, 4, 400); 14 | y = zeros(1, length(x)); 15 | 16 | wc = pi; % 截止频率 17 | td = 1; % 时延 18 | for i = 1:length(x) 19 | tmp = (x(i) - td)*wc; 20 | y(i) = integral(fun, 0, tmp)/pi + 0.5; 21 | end 22 | plot(x, y, 'LineStyle', '-', 'Color', [0, 1, 1], 'LineWidth', 1.5); 23 | 24 | wc = 2*pi; % 增加截止频率 25 | td = 1; % 时延 26 | for i = 1:length(x) 27 | tmp = (x(i) - td)*wc; 28 | y(i) = integral(fun, 0, tmp)/pi + 0.5; 29 | end 30 | plot(x, y, 'LineStyle', '-', 'Color', [0.39, 0.83, 0.07], 'LineWidth', 1.5); 31 | 32 | % 其他标线 33 | lcolor = [0.39, 0.83, 0.07]; 34 | plot([td, td], [0, 0.5], 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1.5) 35 | plot([0, td], [0.5, 0.5], 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1.5) 36 | plot([0, td+pi/wc], [1,1]*max(y), 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1) 37 | plot([1,1]*(td+pi/wc), [0, max(y)], 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1) 38 | plot([0, td-pi/wc], [1,1]*min(y), 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1) 39 | plot([1,1]*(td-pi/wc), [0, min(y)], 'LineStyle', '--', 'Color', lcolor, 'LineWidth', 1) 40 | plot([0,4], [1,1], 'LineStyle', '-.', 'Color', [1, 0, 1], 'LineWidth', 1); 41 | 42 | % 设置坐标轴的范围 43 | xlim([-1, 4]); 44 | ylim([-0.3, 1.5]); 45 | 46 | %% 绘制 arrow 47 | param = struct('XLabel', '$t$', 'YLabel', '$s(t)$', 'OLabel', '$O$'); 48 | DrawAxisWithArrow(h_a, param); 49 | 50 | %% 添加一些标注 51 | 52 | % 在axes上的(0,1)左侧添加标注 53 | fp = CoorFromAxis2Fig(h_a, [0,1]); % 将axes的坐标转化为figure上的坐标，下同 54 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 14); 55 | FigPointLabel(fp, '1.0', 'west', param); 56 | 57 | % 在axes上的(0,0.5)左侧添加标注 58 | fp = CoorFromAxis2Fig(h_a, [0,0.5]); 59 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 14); 60 | FigPointLabel(fp, '0.5', 'west', param); 61 | 62 | % 在axes上的(td,0)下方添加标注 63 | fp = CoorFromAxis2Fig(h_a, [td,0]); 64 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 14); 65 | FigPointLabel(fp, '$t_d$', 'south', param); 66 | 67 | % 在axes上的(td+pi/wc,0)下方添加标注 68 | fp = CoorFromAxis2Fig(h_a, [td+pi/wc,0]); 69 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 12); 70 | FigPointLabel(fp, '$t_d+\frac{\pi}{w_c}$', 'south', param); 71 | 72 | % 在axes上的(td-pi/wc,0)下方添加标注 73 | fp = CoorFromAxis2Fig(h_a, [td-pi/wc, min(y)]); 74 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 12); 75 | FigPointLabel(fp, '$t_d-\frac{\pi}{w_c}$', 'south', param); 76 | 77 | %% 保存图像 78 | if true 79 | img_name = SaveFig2Img(h_f, 'figures\demo03.png'); 80 | fprintf('图像保存为: %s\n', img_name); 81 | end 82 | -------------------------------------------------------------------------------- /demo04.m: -------------------------------------------------------------------------------- 1 | %% 绘制时移曲线 2 | clear; 3 | close all; 4 | %% 设置fig背景为深色模式 5 | back_color = [0.15, 0.15, 0.15]; 6 | h_f = figure('Color', back_color); 7 | 8 | %% 创建axes 9 | h_a = axes('Parent', h_f); 10 | set(h_a, 'NextPlot', 'add'); % 相当于 hold on 11 | 12 | %% 绘制曲线 13 | t = linspace(0, 2*pi, 100); 14 | t0 = pi*5/14; 15 | y = 2*sin(t); 16 | 17 | plot(h_a, t, y, 'LineStyle', '-', 'Color', [0.39, 0.83, 0.07], 'LineWidth', 1.5); 18 | plot(h_a, t+t0, y, 'LineStyle', '-', 'Color', [0, 1, 1], 'LineWidth', 1.5); 19 | 20 | % 圆 21 | theta = linspace(0, 2*pi, 65); 22 | r = 0.4; 23 | rx = r*cos(theta); 24 | ry = r*sin(theta); 25 | plot(rx, ry, 'LineStyle', '-', 'Color', [1, 1, 1], 'LineWidth', 1.2); 26 | plot(rx+t0, ry+2*sin(t0), 'LineStyle', '-', 'Color', [1, 1, 1], 'LineWidth', 1.2); 27 | plot(rx+t0, ry, 'LineStyle', '-', 'Color', [1, 1, 1], 'LineWidth', 1.2); 28 | 29 | % 这里是让 x 轴和 y 轴刻度一致，圆才会圆，这一句的位置必须设置再绘图plot之后， 30 | % 调用 annotation (也就是一系列自定义的仓库之前), 这样由fig的坐标计算到axe的 31 | % 坐标才准确 32 | axis equal 33 | %% 绘制 arrow 34 | param = struct('XLabel', '$t$', 'YLabel', '$f(t)$', 'OLabel', '$O$'); 35 | DrawAxisWithArrow(h_a, param); 36 | 37 | %% 添加一些标注 38 | 39 | % 两曲线时延的标注 40 | fp = CoorFromAxis2Fig(h_a, [t0/2,-1]); % 将axes的坐标转化为figure上的坐标，下同 41 | param = struct('Color', [0.8, 0.52, 0.98], 'FontSize', 14); 42 | FigPointLabel(fp, '$\tau$', 'south', param); 43 | DrawLine(h_a, [0, -1], [t0, -1], struct('Type', 'doublearrow')); 44 | DrawLine(h_a, [t0, 2*sin(t0)], [t0, -1], struct('Type', 'line', 'LineStyle', '--')); 45 | 46 | % 绘制切线方向 47 | dy = atan(2*cos(t0)); 48 | DrawLine(h_a, [0, 0], [r, 0], struct('Type', 'arrow', 'Color', [1,1,1])); 49 | DrawLine(h_a, [t0, 2*sin(t0)], [r*cos(dy)+t0, r*sin(dy)+2*sin(t0)], struct('Type', 'arrow', 'Color', [1,1,1], 'LineWitdh', 0.8)); 50 | DrawLine(h_a, [t0, 0], [r+t0, 0], struct('Type', 'arrow', 'Color', [1, 1, 1])); 51 | 52 | %% 保存图像 53 | if true 54 | img_name = SaveFig2Img(h_f, 'figures\demo04.png'); 55 | fprintf('图像保存为: %s\n', img_name); 56 | end 57 | -------------------------------------------------------------------------------- /figures/demo01.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/songWreng/MatlabDrawNiceGraph/ff0f395c21385d9869a33374bbfd85e3342b8345/figures/demo01.png -------------------------------------------------------------------------------- /figures/demo02.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/songWreng/MatlabDrawNiceGraph/ff0f395c21385d9869a33374bbfd85e3342b8345/figures/demo02.png -------------------------------------------------------------------------------- /figures/demo03.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/songWreng/MatlabDrawNiceGraph/ff0f395c21385d9869a33374bbfd85e3342b8345/figures/demo03.png -------------------------------------------------------------------------------- /figures/demo04.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/songWreng/MatlabDrawNiceGraph/ff0f395c21385d9869a33374bbfd85e3342b8345/figures/demo04.png --------------------------------------------------------------------------------