Material: This selection menu contains a list of the valid materials in your current simulation environment.

Only structures with the selected layer number will be imported by this operation.

Layer number: This selection menu contains all of the layer number present in the GDSII file.

Cell name: This selection menu contains the valid cells available in the GDSII library.

The following 3 input parameters control how the GDSII data is imported: A downloadable associated file GDS_export.gds can be used to test the GUI import function. Selecting a GDSII file will bring up the Single layer GDSII Import window as shown below. This will bring up a standard file browser, which will allow you to select a file with the extension. GDSII import is initiated by accessing the IMPORT->GDSII option from the FILE menu, or by pressing the Import GDS button located on the main toolbar. If you run into any problems, you may have better results by flattening the file first. While we do include scale, rotate, flip, and automatic flattening of references, not all features of GDSII are currently supported. Our import function supports type 0 (squared ends flush to the end-point) and will default to type 2 (square ends with 1/2 the width added to the end-point) for all other types.

In general, GDSII files support several types of corner style options (squared, rounded, extended squared, etc). Path objects in GDSII files are piecewise linear lines plus a width and optionally some information on how to handle corners and ends.

Rotations and mirroring in array and symbolic references Magnifications in array and symbolic references The following table details the supported and unsupported features. Unsupported features should not prevent the file from being imported, however, the results may not be as expected. Lumerical products support most, but not all features of the GDSII file format. Users may also find the built-in Layer builder function useful when importing and exporting GDS files. This data can be directly imported into a 2D layout environment, or it can be used to import 3D objects into a 3D layout environment by extruding the 2D data in the Z dimension.Įxport: An example can be found on the GDSII export automation and GDSII real example page. The GDSII file format is commonly used to store 2-dimensional geometric data. Import: The GDSII import simulation object allows you to import structures from a GDSII file into the layout editor.

Fdtd lumerical example