MATLAB繪制局部放大圖

1 工具準備

MATLAB官網(wǎng)-ZoomPlot(Kepeng Qiu. Matlab Central, 2022)

初始數(shù)據(jù)圖繪制完成后，調(diào)用以下代碼：

%% 添加局部放大
zp = BaseZoom();
zp.plot;

1.1 具體繪制步驟

具體繪制步驟如下：

• 通過鼠標左鍵框選作圖區(qū)域；
• 鼠標右鍵確定后，通過鼠標左鍵框選需要放大的區(qū)域；
• 鼠標右鍵確定后，完成局部放大圖的繪制。

1.2 子坐標系（sub-coordinate system）設置

子坐標系（sub-coordinate system）默認設置：

    % theme of inserted axes (sub-axes)propertiessubAxesBox = 'on'subAxesinsertedLineWidth = 1.2subAxesTickDirection = 'in'subAxesBackgroundColor = 'w'end

例：去除子坐標系并設置線寬為3，具體代碼如下：

    % theme of inserted axes (sub-axes)propertiessubAxesBox = 'off'subAxesinsertedLineWidth = 3subAxesTickDirection = 'in'subAxesBackgroundColor = 'w'end

1.3 放大區(qū)域（the zoomed zone）設置

放大區(qū)域（the zoomed zone）默認設置：

    % theme of the zoomed zone (figures)propertiesrectangleColor = 'k'rectangleFaceColor = 'none'rectangleFaceAlpha = 0rectangleLineStyle = '-'rectangleLineWidth = 1.2rectangleInteractionsAllowed = 'none'end

例：設置放大區(qū)域線條顏色及線寬為2，具體代碼如下：

    % theme of the zoomed zone (figures)propertiesrectangleColor = 'r'rectangleFaceColor = 'none'rectangleFaceAlpha = 0rectangleLineStyle = '-'rectangleLineWidth = 2rectangleInteractionsAllowed = 'none'end

1.4 連接線（the connected lines）設置

連接線（the connected lines）默認設置：

    % theme of the connected lines (figures)properties% setting of lines between arrowsfigureConnectedLineStyle = ':'figureConnectedLineColor = 'k'figureConnectedLineWidth = 1.2% setting of start arrowfigureConnectedLineStartHeadStyle = 'ellipse' % shape of start arrowfigureConnectedLineStartHeadLength = 3figureConnectedLineStartHeadWidth = 3% setting of end arrowfigureConnectedLineEndHeadStyle = 'cback2' % shape of ending arrowfigureConnectedLineEndHeadLength = 7figureConnectedLineEndHeadWidth = 7end

例：設置箭頭末端形狀及顏色，具體代碼如下：

    % theme of the connected lines (figures)properties% setting of lines between arrowsfigureConnectedLineStyle = ':'figureConnectedLineColor = 'r'figureConnectedLineWidth = 1.2% setting of start arrowfigureConnectedLineStartHeadStyle = 'ellipse' % shape of start arrowfigureConnectedLineStartHeadLength = 3figureConnectedLineStartHeadWidth = 3% setting of end arrowfigureConnectedLineEndHeadStyle = 'ellipse' % shape of ending arrowfigureConnectedLineEndHeadLength = 7figureConnectedLineEndHeadWidth = 7end

2 案例

2.1 案例1：基礎圖形（設置1個局部放大區(qū)）

成圖如下：

MATLAB代碼如下：

clc
clear
close all
%%
addpath(genpath(pwd)) %  basic plotting
x = linspace(-0.1*pi,2*pi, 30);
y = cell(1, 3);
y{1, 1} = 0.4*sinc(x)+0.8;
y{1, 2} = tanh(x);
y{1, 3} = exp(-sinc(x));figure(1);
color_ = [0, 114, 189; 126, 47, 142; 162, 20, 47]/255;
ax = axes('Units', 'normalized');
hold(ax, 'on');
box(ax,'on');
set(ax, 'LineWidth', 1.2, 'TickDir', 'in');
for i = 1:3plot(x, y{1, i}, 'Parent', ax, 'Color', color_(i, :), 'LineWidth', 3)
end
set(gca,'Layer','top','FontSize',14,'Fontname', 'Times New Roman');% add a zoomed zone
zp = BaseZoom();
zp.plot;

2.2 案例2：設置2個局部放大區(qū)

成圖如下：

MATLAB代碼如下：

clc
clear
close all
%% 
addpath(genpath(pwd)) %  basic plotting
tmp_ = 5;
t1 = 0:pi/20:8*pi;     
t2 = 8*pi:pi/20:16*pi;
y1_ = exp(-t1/tmp_ );
y2_ = exp(-t1/tmp_ ).*sin(tmp_ *t1);
t = [t1, t2];
y1 = [y1_, fliplr(y1_)];
y2 = [y2_, fliplr(y2_)];figure(1);
plot(t, y2, 'Color', 'r', 'LineStyle', '-', 'LineWidth', 1.5) 
hold on
plot(t, y1, 'Color', 'b', 'LineStyle', ':', 'LineWidth', 1.5) 
plot(t, -y1, 'Color', 'b', 'LineStyle', ':','LineWidth', 1.5) 
xlim([min(t), max(t)])
set(gca,'Layer','top','FontSize',14,'Fontname', 'Times New Roman');% add 2 zoomed zones
zp = BaseZoom();
zp.plot;
zp.plot;

參考