try this
The display.drf file can be modified to change the plotting behavior.
This will apply to signals plotted from ADE.
1. Open Display Resources Manager in CIW by selecting "Tools ->Display Resources Manager...“
2. Click "Edit..." in Display Resources Tool Box.
3. Change "Tech Lib Name" to your technology library.
4. Search for layer "y0 drawing" and modify the Line Style and click "Apply" at the bottom of "Layers" column.
5. Re-do step 4 to change "y1", "y2" ........ "y9" drawing layers.
6. File->Save in the Display Resource Editor.
7. Load this in your CIW with "drLoadDrf "./display.drf" command
after your pdk display.drf file is loaded.
For standalone ViVA environment variables should be set in the .cdsinit
or .cdsenv files, i.e.
• viva.trace lineStyle string "solid" nil
• viva.trace lineThickness string "thick" nil
A full list can be found in this file $CDSHOME/tools/dfII/etc/tools/viva/.cdsenv