When converting from GDSII to DXF several features are important: the ability to quickly determine the list of structures in the stream file, the list of data that have layers and the units of the file.
GDS2DXF quickly scans the entire file and presents the user with a complete list of structures including a hierarchy tree. It also presents the user with a list of layers containing data.
The control dialog takes the user through the steps to make a GDSII to DXF conversion.
First a GDSII file is selected.
Then the structure to convert is selected. Normally this will be the top level structure but need not be.
Next the user opens (or creates) a configuration file and sets the parameters for the conversion.
The user defines which layers to convert and their names in the DXF file.
Finally the Translate button runs the conversion.
Scroll through the entire list of structures and click on the one you want to translate.
The program suggests the top level structure for you based on the number of references.
The Configuration Menu gives you control over the results.
Special controls include:
circle mappping -- polygons in GDSII that have more than 20 sides and all angles equal can be mapped to DXF circles. This makes the resulting DXF data smaller and smoother.
path mitering - paths that bend sharply (more than 90 degrees) will have their corner mitered when converted to outlines (assuming Path control = OUTLINE)
The Layer Settings dialog enables you to select layers for translation quickly - check off layers you want. Easily control the mapping from GDSII layer number to DXF layer name.