Changes

In the case of solid geometric objects, [[EM.Illumina]]'s mesh generator produces triangular cells only on the outer surface of the solid object. In the case of surface geometric objects, [[EM.Illumina]]'s mesh generator produces triangular cells on both sides of the surface of the object. In other words, you will get double coincident cells with opposite normal vectors. At the default mesh density of 10 cells per wavelenghtwavelength, your PO simulation will involve a total of 34,752 double cells, which is quite large. open [[EM.Illumina]]'s mesh settings dialog and check the box labeled '''All Single-Sided Cells'''. This will reduce the number of triangular cells to a total of 17,376, that is half the original value. The dialog also provide provides a check box labeled "Reverse Normal" in case the single-sided cells pick the wrong normal vector.