Simplecad output formats
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I’ve also developed a Python library to output LTXT format for algorithmic patterns. LTXT is documented in the GenISys LayoutBEAMER Manual. I’ve used it for several projects with good success. It has extensions for circles and arcs, so it can be nice to use for patterns such as regular arrays of dots (although these types of patterns have other issues such as run-time overheads that might cause you to make other choices.) If your project is best served by a text format, I’d recommend using LTXT as your format. It is read and displayed by GenIsys, so it is easy to verify results. Although not a standard, this is fairly common text file format. If you’re familiar with the GDS-II pattern data format, the terminology here will seem familiar - boundaries, paths, structures and references all behave just like in GDS-II.
SIMPLECAD OUTPUT FORMATS CODE
TXL is an ASCII-based text layout format that can be used to code up simple patterns, and is a good choice for many sorts of algorithmic patterns, such as gratings or simple arrays.
SIMPLECAD OUTPUT FORMATS FULL
It is also showing its age a bit everything must be designed in grid units of 100 nm (it is possible to design in a different grid, such as 1 nm increments, but then you must remember to always include a 100:1 scaling factor when you convert to J52 format.) Full format specification can be found here.
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It is however, a pretty bare-bones format, so might be appropriate only for simple elements such as diffraction gratings. JEOL J01 This is a firmly standardized, documented format from JEOL, and they provide the conversion programs to convert the data directly into JEOL-exposeable files. There are two common text file formats available.