如何使用命令将.fig格式绘图的属性复制到另一绘图？

If you need to replicate line widths, axes settings, all font properties, background colors, figure size/position from one saved .fig file to another, here's a practical, step-by-step approach using MATLAB's handle graphics tools:

Step 1: Open Both Figures and Grab Their Handles #

First, load your reference (source) figure and the target figure you want to update, then capture their handles:

% Open the source figure with the properties you want to copy
fig_source = open('your_source_figure.fig');
% Open the target figure that needs the property update
fig_target = open('your_target_figure.fig');

Step 2: Copy Line Properties (Including Line Width) #

Lines are child objects of the axes. We’ll loop through each line in the source axes and mirror its properties to the corresponding line in the target:

% Get axes handles (works for single-axis figures; loop for subplots)
ax_source = fig_source.Children;
ax_target = fig_target.Children;

% Retrieve all line objects from both axes
lines_source = ax_source.Children;
lines_target = ax_target.Children;

% Copy line properties (skip read-only attributes like parent/type)
for i = 1:length(lines_source)
    line_attrs = get(lines_source(i));
    line_attrs = rmfield(line_attrs, {'Type', 'Parent', 'Annotation', 'DisplayName'});
    set(lines_target(i), line_attrs);
end

This covers line width, color, style, marker type, and other line-specific properties.

Step 3: Copy Axes Settings (Fonts, Ticks, Background) #

Next, transfer all axes-level properties—this includes axis limits, tick labels, axes background color, and base font configurations:

% Get source axes properties, exclude unmodifiable/structural attributes
ax_attrs = get(ax_source);
ax_attrs = rmfield(ax_attrs, {'Type', 'Parent', 'Children', 'Position', 'Units'});
% Apply properties to the target axes
set(ax_target, ax_attrs);

Step 4: Enforce Full Font Consistency #

To ensure every text element (axis labels, title, tick labels) matches exactly, explicitly copy font properties:

% Extract font details from the source axes
font_attrs = get(ax_source, {'FontName', 'FontSize', 'FontWeight', 'FontAngle'});
% Apply to all text components
set(ax_target.XLabel, font_attrs);
set(ax_target.YLabel, font_attrs);
set(ax_target.Title, font_attrs);
set(ax_target, {'FontName', 'FontSize', 'FontWeight', 'FontAngle'}, font_attrs);

Step 5: Copy Figure Size, Position, and Background Color #

Finally, replicate the figure’s window dimensions, on-screen position, and background color:

% Get figure position, color, and unit settings
fig_attrs = get(fig_source, {'Position', 'Color', 'Units'});
% Set units first to ensure position is applied correctly
set(fig_target, 'Units', fig_attrs{3});
% Apply position and background color
set(fig_target, 'Position', fig_attrs{1});
set(fig_target, 'Color', fig_attrs{2});

Quick Edge Case Tips #

• For figures with multiple subplots, wrap the axes/line copying logic in a loop over each axes object in fig_source.Children.
• If source and target have different line counts, adjust the loop to handle mismatches (e.g., copy properties to the first N lines, or add new lines if needed).
• Test with a small subset first to confirm properties are copying as expected before running the full script.

内容的提问来源于stack exchange，提问作者John Smith