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HFSS15: Five: Aligning Objects
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Objects that touch each other in imported geometries don’t always have well-aligned faces. Often, this is a consequence of the limited level of precision in the imported file. Misaligned faces can cause tiny object intersections or tiny gaps between objects, which in turn can lead to an inefficient mesh or even a failure to create the mesh.
To repair such occurrences in an automated way, you can select groups of objects and invoke Modeler>Model Analysis>Analyze Interobject Misalignment. This will yield face pairs from different bodies that are slightly misaligned with respect to each other.
In the window that shows this list, check the box "Auto-Zoom to Selection" and select face pairs from the list. When you decide that faces should be aligned, click Align Faces. In some cases, face alignment will fail if the topology of the body would change by a large amount after alignment. In that case, you can decide to ignore it, as it may not be a problem, or revisit it later manually in the Modeler environment.
Note | In complicated models, the Interobject Misalignment analysis can take a long time if you select all objects before launching the analysis. If you don’t know which pairs of objects to analyze, just let the mesh generator try to make a mesh. If the mesh fails, a list will be presented to you of misalignments that the mesh generator finds suspicious but didn’t want to adjust without permission. Not every misalignment in the list is always a problem: this is a list of features that might need your attention. |
Note | As face misalignments between touching objects can cause small object intersections, this alignment capability can already serve a useful role in stage three. |
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