Add a Layer ID number

[JeremyDrysdale-ibm]

From @ThomasGM4

What is the feature being requested?

Add a Layer ID# to the qgeometry table that is paired against Layer #.

• Possibly have Layer # be a tuple (layer # / ID #)?
• Have Layer ID# be a separate value? Could be modified via options, or restrict as hardcoded value for the component designer? A way for component designer to indicate something specific about a qgeometry of their component.

What are use cases for this feature?

Enable the layer ID#

[ThomasGM4]

As in GDS, there is both layer # and ID #. Currently we are only using layer #, and having it as a base Metal option. Adding layer ID as a base option could prove useful, as gives the user/designer more control, and could allow for more variation in options, such as with rendering or the potential 'layer stack' approach.

[ThomasGM4]

This could tie in with the layer stack ideas, we can try discussing this more in January on how to best make use of additional information/higher level of control from the component designer.