http://www.k-wave.org/forum/topic/does-the-origin-of-the-grid-need-to-be-at-00-cartesian Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:32:02 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/does-the-origin-of-the-grid-need-to-be-at-00-cartesian#post-5964 Mon, 29 May 2017 08:52:38 +0000 Bradley Treeby 5964@http://www.k-wave.org/forum/ <p>Hi ad000000,</p> <p>Most of the k-Wave inputs are grid based (e.g., the source mask), so externally, you can assume any coordinate system origin. However, the inputs that are Cartesian based (e.g., using a Cartesian sensor mask, or using functions such as <code>makeCartSphere</code>) assume the origin is in the centre of the grid at <code>(Nx/2, Ny/2, Nz/2)</code>, and it's not currently possible to change this.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/does-the-origin-of-the-grid-need-to-be-at-00-cartesian#post-5960 Fri, 26 May 2017 18:11:09 +0000 ad000000 5960@http://www.k-wave.org/forum/ <p>Hi. I see that the makeGrid command is needed for the program, and that the grid it makes is centered on 0,0. It would be nice if I could make a model who's origin is more convenient, like at the middle of the transducer or target, or focus. Is that possible? Thanks. </p>