http://www.k-wave.org/forum/topic/graphing-data-monopole-source-in-the-homogenous-propagation-medium Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:29:14 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/graphing-data-monopole-source-in-the-homogenous-propagation-medium#post-5184 Fri, 31 Jul 2015 08:15:48 +0000 Anthony 5184@http://www.k-wave.org/forum/ <p>Hi Caroline,</p> <p>The toolbox is probably not in your Matlab path.<br /> If the toolbox is in 'C:\MATLAB\R2015a\toolbox\k-Wave Toolbox 1.1' for example.<br /> Then do:<br /> <code>addpath(genpath(&#39;C:\MATLAB\R2015a\toolbox\k-Wave Toolbox 1.1&#39;));</code><br /> and try to run the code again.</p> <p>Anthony </p> http://www.k-wave.org/forum/topic/graphing-data-monopole-source-in-the-homogenous-propagation-medium#post-5182 Thu, 30 Jul 2015 17:46:10 +0000 caroline lubert 5182@http://www.k-wave.org/forum/ <p>Hi,</p> <p>I am brand new at this...and trying to run an example (Any example), but keep getting the same error: Undefined function 'makeGrid' for input arguments of type 'double'.<br /> Where am I going wrong?</p> <p>thanks! </p> http://www.k-wave.org/forum/topic/graphing-data-monopole-source-in-the-homogenous-propagation-medium#post-5161 Sun, 19 Jul 2015 13:21:06 +0000 Bradley Treeby 5161@http://www.k-wave.org/forum/ <p>Hi Suryakant,</p> <p>You could use something like:</p> <pre><code>figure; plot(kgrid.t_array, sensor_data.p); xlabel(&#39;Time&#39;); ylabel(&#39;Pressure&#39;);</code></pre> <p>There are also lots of examples in the html help included with k-Wave. See section 1.3 of the k-Wave manual for how to access this in different versions of MATLAB.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/graphing-data-monopole-source-in-the-homogenous-propagation-medium#post-5152 Sat, 18 Jul 2015 09:37:22 +0000 Suryakant 5152@http://www.k-wave.org/forum/ <p>Hi ,<br /> We tried running following code ( given K-Wave documentation ) for simulating a monopole point source in a homogenous propogation medium we got the simulation running but we have not been able to get a graph between signal amplitude and time , also we were looking to plot a graph between signal amplitude and sensor pressure signal .<br /> Would you please help us in plotting the same ? ( What should we add , to our code to get the desired plot )<br /> % creating a computatuional grid<br /> Nx = 128;<br /> Ny = 128;<br /> Nz = 128;<br /> dx = .1*10^-3;<br /> dy = .1*10^-3;<br /> medium.sound_speed = 1500;<br /> medium.alpha_coeff = .75;<br /> medium.alpha_power = 1.5;<br /> kgrid = makeGrid(Nx,dx,Ny,dy);<br /> t_end = 6*10^-6;<br /> kgrid.t_array = makeTime(kgrid,medium.sound_speed,[],t_end);<br /> source.p_mask = zeros(Nx,Ny);<br /> source.p_mask(end - Nx/4,Ny/2) =1;<br /> source_freq = 0.25*10^6;<br /> source_mag = 2;<br /> source.p = source_mag*sin(2*pi*source_freq*kgrid.t_array);<br /> source.p = filterTimeSeries(kgrid,medium,source.p);<br /> sensor_radius = 4*10^-3;<br /> num_sensor_points = 50;<br /> sensor.mask = makeCartCircle(sensor_radius,num_sensor_points);<br /> sensor.record = {'p','p_final'};<br /> sensor_data = kspaceFirstOrder2D(kgrid,medium,source,sensor); </p>