% plot_Bscan.m % Script to plot EM fields from a gprMax B-scan % % Craig Warren clear all, clc [filename, pathname] = uigetfile('*.out', 'Select gprMax output file to plot B-scan', 'MultiSelect', 'on'); filename = fullfile(pathname, filename); % Open file and read fields if filename ~= 0 iterations = double(h5readatt(filename, '/', 'Iterations')); dt = h5readatt(filename, '/', 'dt'); prompt = 'Which field do you want to view? Ex, Ey, or Ez: '; field = input(prompt,'s'); fieldpath = strcat('/rxs/rx1/', field); field = h5read(filename, fieldpath)'; time = linspace(0, (iterations - 1) * dt, iterations)'; traces = 0:size(field, 2); fh1=figure('Name', filename); clims = [-max(max(abs(field))) max(max(abs(field)))]; im = imagesc(traces, time, field, clims); xlabel('Trace number'); ylabel('Time [s]'); c = colorbar; c.Label.String = 'Field strength [V/m]'; ax = gca; ax.FontSize = 16; xlim([0 traces(end)]); % Options to create a nice looking figure for display and printing set(fh1,'Color','white','Menubar','none'); X = 60; % Paper size Y = 30; % Paper size xMargin = 0; % Left/right margins from page borders yMargin = 0; % Bottom/top margins from page borders xSize = X - 2*xMargin; % Figure size on paper (width & height) ySize = Y - 2*yMargin; % Figure size on paper (width & height) % Figure size displayed on screen set(fh1, 'Units','centimeters', 'Position', [0 0 xSize ySize]) movegui(fh1, 'center') % Figure size printed on paper set(fh1,'PaperUnits', 'centimeters') set(fh1,'PaperSize', [X Y]) set(fh1,'PaperPosition', [xMargin yMargin xSize ySize]) set(fh1,'PaperOrientation', 'portrait') end

这是一个 MATLAB 脚本，用于绘制 gprMax 模拟数据的 B-scan 图像。用户需要选择一个输出文件，然后指定要查看的场强量（Ex，Ey 或 Ez），脚本将读取相应的数据并生成图像。图像中的 x 轴表示探测器（rxs）的测量位置，y 轴表示时间，颜色表示场强。此外，该脚本还提供了一些选项，用于创建漂亮的图像以供显示和打印。

相关问题

将多个B-scan的out文件利用plot_Bscan.m绘制C-scan的代码

好的，以下是一个示例代码，供参考：

% 读取多个B-scan的out文件
Bscan1 = load('Bscan1.out');
Bscan2 = load('Bscan2.out');
% ... 其他B-scan文件

% 设置C-scan的参数
num_Bscans = 10; % B-scan的数量
num_Ascans = size(Bscan1,1); % A-scan的数量
spacing_Ascan = 0.1; % A-scan的间距，单位为mm
spacing_Bscan = 1; % B-scan的间距，单位为mm

% 初始化C-scan数组
Cscan = zeros(num_Ascans, num_Bscans);

% 将B-scan数据填充到C-scan数组中
Cscan(:,1) = Bscan1(:,2);
Cscan(:,2) = Bscan2(:,2);
% ... 其他B-scan数据

% 绘制C-scan图像
figure;
imagesc([0 (num_Bscans-1)*spacing_Bscan], [0 (num_Ascans-1)*spacing_Ascan], Cscan);
colormap gray;
xlabel('Lateral distance (mm)');
ylabel('Axial distance (mm)');
title('C-scan Image');

在这个示例代码中，我们假设B-scan的数据存储在名为`Bscan1.out`、`Bscan2.out`等文件中，每个文件中包含了每一行对应的A-scan数据。我们使用`load`函数将这些文件读入到Matlab中。

接下来，我们设置C-scan的参数：`num_Bscans`表示B-scan的数量，`num_Ascans`表示每个B-scan中的A-scan数量，`spacing_Ascan`和`spacing_Bscan`表示A-scan和B-scan之间的间距，单位为mm。

然后，我们初始化一个大小为`num_Ascans x num_Bscans`的C-scan数组，并将每个B-scan的数据填充到对应的列中。

最后，我们使用`imagesc`函数绘制C-scan图像，其中参数`[0 (num_Bscans-1)*spacing_Bscan]`和`[0 (num_Ascans-1)*spacing_Ascan]`表示图像的x轴和y轴范围，`colormap gray`表示使用灰度色彩映射，`xlabel`和`ylabel`设置x轴和y轴标签，`title`设置图像标题。

优化这段代码 让它输出可以改变坐标轴大小的图像形式 % plot_Bscan.m % Script to plot EM fields from a gprMax B-scan % % Craig Warren clear all, clc [filename, pathname] = uigetfile('*.out', 'Select gprMax output file to plot B-scan', 'MultiSelect', 'on'); filename = fullfile(pathname, filename); % Open file and read fields if filename ~= 0 iterations = double(h5readatt(filename, '/', 'Iterations')); dt = h5readatt(filename, '/', 'dt'); prompt = 'Which field do you want to view? Ex, Ey, or Ez: '; field = input(prompt,'s'); fieldpath = strcat('/rxs/rx1/', field); field = h5read(filename, fieldpath)'; time = linspace(0, (iterations - 1) * dt, iterations)'; traces = 0:size(field, 2); fh1=figure('Name', filename); clims = [-max(max(abs(field))) max(max(abs(field)))]; im = imagesc(traces, time, field, clims); xlabel('Trace number'); ylabel('Time [s]'); c = colorbar; c.Label.String = 'Field强度 strength [V/m]'; ax = gca; ax.FontSize = 16; xlim([0 traces(end)]); % Options to create a nice looking figure for display and printing set(fh1,'Color','white','Menubar','none'); X = 60; % Paper size Y = 30; % Paper size xMargin = 0; % Left/right margins from page borders yMargin = 0; % Bottom/top margins from page borders xSize = X - 2*xMargin; % Figure size on paper (width & height) ySize = Y - 2*yMargin; % Figure size on paper (width & height) % Figure size displayed on screen set(fh1, 'Units','centimeters', 'Position', [0 0 xSize ySize]) movegui(fh1, 'center') % Figure size printed on paper set(fh1,'PaperUnits', 'centimeters') set(fh1,'PaperSize', [X Y]) set(fh1,'PaperPosition', [xMargin yMargin xSize ySize]) set(fh1,'PaperOrientation', 'portrait') end

改进后的代码如下：

% plot_Bscan.m
% Script to plot EM fields from a gprMax B-scan
% Craig Warren

clear all, clc

[filename, pathname] = uigetfile('*.out', 'Select gprMax output file to plot B-scan', 'MultiSelect', 'on');
filename = fullfile(pathname, filename);

% Open file and read fields
if filename ~= 0
    iterations = double(h5readatt(filename, '/', 'Iterations'));
    dt = h5readatt(filename, '/', 'dt');

    prompt = 'Which field do you want to view? Ex, Ey, or Ez: ';
    field = input(prompt,'s');
    fieldpath = strcat('/rxs/rx1/', field);
    field = h5read(filename, fieldpath)';
    time = linspace(0, (iterations - 1) * dt, iterations)';
    traces = 0:size(field, 2);

    fh1=figure('Name', filename);
    clims = [-max(max(abs(field))) max(max(abs(field)))];
    im = imagesc(traces, time, field, clims);
    xlabel('Trace number');
    ylabel('Time [s]');
    c = colorbar;
    c.Label.String = 'Field strength [V/m]';
    ax = gca;
    ax.FontSize = 16;
    
    % Options to create a nice looking figure for display and printing
    set(fh1,'Color','white','Menubar','none');
    X = 60;   % Paper size
    Y = 30;   % Paper size
    xMargin = 0; % Left/right margins from page borders
    yMargin = 0;  % Bottom/top margins from page borders
    xSize = X - 2*xMargin;    % Figure size on paper (width & height)
    ySize = Y - 2*yMargin;    % Figure size on paper (width & height)

    % Figure size displayed on screen
    set(fh1, 'Units','centimeters', 'Position', [0 0 xSize ySize])
    movegui(fh1, 'center')

    % Figure size printed on paper
    set(fh1,'PaperUnits', 'centimeters')
    set(fh1,'PaperSize', [X Y])
    set(fh1,'PaperPosition', [xMargin yMargin xSize ySize])
    set(fh1,'PaperOrientation', 'portrait')
    
    % Allow user to adjust axis limits
    prompt = 'Do you want to adjust the axis limits? (y/n): ';
    response = input(prompt, 's');
    if response == 'y'
        prompt = 'Enter the lower limit for the y-axis: ';
        yLow = input(prompt);
        prompt = 'Enter the upper limit for the y-axis: ';
        yHigh = input(prompt);
        ylim([yLow, yHigh]);
    end
end

改进的部分是添加了一个可以让用户调整坐标轴大小的选项。当程序运行时，它会询问用户是否要调整y轴的范围，如果用户输入'y'，则程序会提示用户输入y轴下限和上限。然后使用ylim函数将y轴的范围设置为用户输入的值。