Changes

EM.Tempo

61 bytes added, 03:00, 21 July 2015
=== The FDTD Mesh Types ===
[[Image:FDTD34.png|thumb|350px|A human head model and a cellular phone handset on its side.]]
[[Image:FDTD33.png|thumb|350px|The FDTD mesh of the human head model and the cellular phone handset.]]
[[EM.Tempo]]'s FDTD mesh is a rectangular Yee mesh that extends to the entire computational domain. It is primarily constructed from three mesh grid profiles along the XY, YZ and ZX principal planes. These projections together create a 3D rectangular (voxel) mesh space. Straight lines, boxes and rectangular plates whose edges are aligned with the three principal axes are the simplest objects to mesh in EM.Tempo. Such objects preserve their exact shapes after discretization. All the objects with curved edges and curved surfaces or objects with straight edges and flat faces that are not parallel to the principal axes or principal planes (such as oblique lines and slanted lateral faces of a pyramid) are discretized using a staircase (Yee) profile.
<table>
<tr>
<td> [[Image:FDTD5BFDTD22(1).png|thumb|300px350px|EM.Tempo's Inhomogeneous Material dialogThe geometry of a metallic sphere.]] </td></td><td> [[Image:FDTD28.png|thumb|350px|The adaptive FDTD meshes mesh of a the metallic sphere.]] </td>
</tr>
</table>
In [[EM.Cube]]'s "Mesh View" mode, you can rotate or pan the view of the project workspace, but you cannot edit the objects. '''"Show Mesh"''' generates a new mesh and displays it if there is none in the memory, or it simply displays an existing mesh in the memory. This is a useful feature because generating an FDTD mesh may take a long time depending on the complexity of structure and the total size of the computational domain. If you change the structure or alter the mesh settings, a new mesh is always generated. You can ignore any mesh in the memory and force [[EM.Cube]] to generate a fresh FDTD mesh from the ground up by selecting '''Menu > Simulate >Discretization > Regenerate Mesh''' or by right clicking on the '''Yee Mesh''' item of the Navigation Tree and selecting '''Regenerate''' from the contextual menu.
 
<table>
<tr>
<td> [[Image:FDTD34.png|thumb|350px|A human head model and a cellular phone handset on its side.]] </td>
</td>
<td> [[Image:FDTD33.png|thumb|350px|The FDTD mesh of the human head model and the cellular phone handset.]] </td>
</tr>
</table>
=== Changing the FDTD Mesh Settings ===
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