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【MATLAB】図の背景を透明化して保存する方法

Last updated at Posted at 2021-10-24

やりたいこと

MATLABで描画した図の背景を透明にして保存したい.

例えば、スライドの模式図に使えます.

本記事では、出力したFigureの背景を透明化してemf形式で保存する手法を紹介します。

explanation.png

記事の冒頭で紹介した画像の例です。この例では、波形だけを載せたい時を想定して、軸などの描画もなくしています。

main.m
x = 0:0.01:6*pi;

fig = figure(1);
ax = gca;
plot(x,sin(x),'LineWidth',4,'Color','black');

fig.Color = 'none';
ax.Color = 'none';
fig.InvertHardcopy = 'off';

% === (任意)軸,外枠の非表示 ===
ax.Box = 'off';
ax.XColor = 'none';
ax.YColor = 'none';
% ==============================

saveas(fig,'transparent.emf')

動作環境

MATLAB R2022a

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