Changes

[[Image:UrbanCanyon7.png|thumb|left|640px720px|Visualization of the 3D radiation pattern of the directional transmitter in the random city scene.]]</td></tr></table> There is an important catch to remember here. When you define a radiation pattern observable for your project, EM.Terrano will attempt to compute the overall effective radiation pattern of the entire physical structure. However, in this case, you defined the radiation pattern observable merely for visualization purposes. To stop EM.Terrano from computing the actual radiation pattern of your entire scene, there is a check box in EM.Terrano's Ray Tracer Simulation Engine Settings dialog that is labeled '''Do not compute new radiation patterns'''. This box is checked by default, which means the actual radiation pattern of your entire scene will not be computed automatically.  <table><tr><td>[[Image:UrbanCanyon9.png|thumb|left|480px|EM.Terrano's Run Simulation dialog.]]