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https://gitee.com/sunhf/gprMax.git
已同步 2025-08-06 12:36:51 +08:00
Added simple MATLAB scripts for plotting A-scans and B-scans. They are not as functional as the Python equivalents and are intended as a getting started point.
这个提交包含在：
Craig Warren
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These MATLAB scripts are designed as a base to help you get started with plotting data (A-scans and B-scans) from simulations. They do not feature extensive error checking.
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% plot_Ascan.m
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% Script to save and plot EM fields from a gprMax A-scan
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%
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% Craig Warren
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clear all, clc
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[filename, pathname] = uigetfile('*.out', 'Select gprMax A-scan output file to plot');
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fullfilename = strcat(pathname, filename);
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if filename ~= 0
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header.title = h5readatt(fullfilename, '/', 'Title');
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header.iterations = double(h5readatt(fullfilename,'/', 'Iterations'));
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tmp = h5readatt(fullfilename, '/', 'dx, dy, dz');
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header.dx = tmp(1);
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header.dy = tmp(2);
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header.dz = tmp(3);
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header.dt = h5readatt(fullfilename, '/', 'dt');
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header.nsrc = h5readatt(fullfilename, '/', 'nsrc');
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header.nrx = h5readatt(fullfilename, '/', 'nrx');
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% Time vector for plotting
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time = linspace(0, (header.iterations)*(header.dt)*1E9, header.iterations);
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% Initialise structure for field arrays
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fields.ex = zeros(header.iterations, header.nrx);
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fields.ey = zeros(header.iterations, header.nrx);
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fields.ez = zeros(header.iterations, header.nrx);
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fields.hx = zeros(header.iterations, header.nrx);
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fields.hy = zeros(header.iterations, header.nrx);
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fields.hz = zeros(header.iterations, header.nrx);
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fields.ix = zeros(header.iterations, header.nrx);
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fields.iy = zeros(header.iterations, header.nrx);
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fields.iz = zeros(header.iterations, header.nrx);
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% Save and plot fields from each receiver
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for n=1:header.nrx
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path = strcat('/rxs/rx', num2str(n));
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tmp = h5readatt(fullfilename, path, 'Position');
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header.rx(n) = tmp(1);
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header.ry(n) = tmp(2);
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header.rz(n) = tmp(3);
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path = strcat(path, '/');
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fields.ex(:,n) = h5read(fullfilename, strcat(path, 'Ex'));
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fields.ey(:,n) = h5read(fullfilename, strcat(path, 'Ey'));
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fields.ez(:,n) = h5read(fullfilename, strcat(path, 'Ez'));
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fields.hx(:,n) = h5read(fullfilename, strcat(path, 'Hx'));
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fields.hy(:,n) = h5read(fullfilename, strcat(path, 'Hy'));
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fields.hz(:,n) = h5read(fullfilename, strcat(path, 'Hz'));
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fields.ix(:,n) = h5read(fullfilename, strcat(path, 'Ix'));
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fields.iy(:,n) = h5read(fullfilename, strcat(path, 'Iy'));
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fields.iz(:,n) = h5read(fullfilename, strcat(path, 'Iz'));
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fh1=figure('Name', strcat('rx', num2str(n)));
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ax1 = subplot(3,3,1); plot(time, fields.ex(:,n), 'r', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [V/m]'), title('E_x')
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ax2 = subplot(3,3,4); plot(time, fields.ey(:,n), 'r', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [V/m]'), title('E_y')
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ax3 = subplot(3,3,7); plot(time, fields.ez(:,n), 'r', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [V/m]'), title('E_z')
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ax4 = subplot(3,3,2); plot(time, fields.hx(:,n), 'b', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [A/m]'), title('H_x')
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ax5 = subplot(3,3,5); plot(time, fields.hy(:,n), 'b', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [A/m]'), title('H_y')
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ax6 = subplot(3,3,8); plot(time, fields.hz(:,n), 'b', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Field strength [A/m]'), title('H_z')
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ax7 = subplot(3,3,3); plot(time, fields.ix(:,n), 'g', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Current [A]'), title('I_x')
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ax8 = subplot(3,3,6); plot(time, fields.iy(:,n), 'g', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Current [A]'), title('I_y')
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ax9 = subplot(3,3,9); plot(time, fields.iz(:,n), 'g', 'LineWidth', 2), grid on, xlabel('Time [ns]'), ylabel('Current [A]'), title('I_z')
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ax1.FontSize = 16;
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ax2.FontSize = ax1.FontSize;
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ax3.FontSize = ax1.FontSize;
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ax4.FontSize = ax1.FontSize;
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ax5.FontSize = ax1.FontSize;
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ax6.FontSize = ax1.FontSize;
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ax7.FontSize = ax1.FontSize;
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ax8.FontSize = ax1.FontSize;
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ax9.FontSize = ax1.FontSize;
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% Options to create a nice looking figure for display and printing
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set(fh1,'Color','white','Menubar','none');
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X = 60; % Paper size
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Y = 30; % Paper size
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xMargin = 0; % Left/right margins from page borders
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yMargin = 0; % Bottom/top margins from page borders
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xSize = X - 2*xMargin; % Figure size on paper (width & height)
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ySize = Y - 2*yMargin; % Figure size on paper (width & height)
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% Figure size displayed on screen
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set(fh1, 'Units','centimeters', 'Position', [0 0 xSize ySize])
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movegui(fh1, 'center')
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% Figure size printed on paper
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set(fh1,'PaperUnits', 'centimeters')
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set(fh1,'PaperSize', [X Y])
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set(fh1,'PaperPosition', [xMargin yMargin xSize ySize])
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set(fh1,'PaperOrientation', 'portrait')
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end
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end
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% plot_Bscan.m
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% Script to plot EM fields from a gprMax B-scan
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%
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% Craig Warren
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clear all, clc
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[filename, pathname] = uigetfile('*.out', 'Select gprMax output file to plot B-scan', 'MultiSelect', 'on');
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filename = fullfile(pathname, filename);
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% Open file and read fields
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if filename ~= 0
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iterations = double(h5readatt(filename, '/', 'Iterations'));
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dt = h5readatt(filename, '/', 'dt');
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Ex = h5read(filename, '/rxs/rx1/Ex')';
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Ey = h5read(filename, '/rxs/rx1/Ey')';
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Ez = h5read(filename, '/rxs/rx1/Ez')';
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end
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prompt = 'Which field do you want to view? Ex, Ey, or Ez: ';
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field = input(prompt,'s');
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field = eval(field);
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time = 0:dt:iterations * dt;
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traces = 0:size(field,2);
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fh1=figure('Name', filename);
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clims = [-max(max(abs(field))) max(max(abs(field)))];
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im = imagesc(traces, time, field, clims);
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xlabel('Trace number');
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ylabel('Time [s]');
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c = colorbar;
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c.Label.String = 'Field strength [V/m]';
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ax = gca;
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ax.FontSize = 16;
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xlim([0 traces(end)]);
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% Options to create a nice looking figure for display and printing
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set(fh1,'Color','white','Menubar','none');
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X = 60; % Paper size
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Y = 30; % Paper size
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xMargin = 0; % Left/right margins from page borders
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yMargin = 0; % Bottom/top margins from page borders
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xSize = X - 2*xMargin; % Figure size on paper (width & height)
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ySize = Y - 2*yMargin; % Figure size on paper (width & height)
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% Figure size displayed on screen
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set(fh1, 'Units','centimeters', 'Position', [0 0 xSize ySize])
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movegui(fh1, 'center')
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% Figure size printed on paper
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set(fh1,'PaperUnits', 'centimeters')
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set(fh1,'PaperSize', [X Y])
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set(fh1,'PaperPosition', [xMargin yMargin xSize ySize])
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set(fh1,'PaperOrientation', 'portrait')
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