How to create shielded path?

 You need to use the entry function enterPath. A very good example is found in the Virtuoso Relative Object Design User Guide of exactly what you want. See the Cadence documentation for this document.

Hi,

I got the code modified by skill genious :)

;; Create a shielded path
procedure( Shield(win done pts)
  errset(
   (let (cv layer purpose list_draw_layer tech width1 tfId)

      unless( done printf("Finished!") )

      cv = geGetEditCellView()
      layer = car(leGetEntryLayer()) ;displays layer on LSW is taken
      purpose = cadr(leGetEntryLayer()); displays drawing or pin on the selected lsw
      list_draw_layer =list(layer purpose)
      tech = techGetTechFile(geGetWindowCellView())
         ; rule deck file id is stored in tech
      width1 = techGetSpacingRule(tech "minWidth" layer)
         ; the minimum width is stored in width1

      rodCreatePath(

         ?layer list( layer purpose )

         ?pts foreach(   mapcar point pts
                geWindowToEditPoint(hiGetCurrentWindow() point)   )

         ?width .8
         ?justification "center"
         ?cvId cv
         ?offsetSubPath
         list(
list(
              ?layer list( layer purpose )
              ?justification "left"
              ?sep 1
              ?width .4
           ) ;end of offset sublist1
           list(
              ?layer list( layer purpose )
              ?justification "right"
              ?sep 1
              ?width .4
           ) ;end of offset sublist2
         ) ;end of offset list of lists
      ) ;end of rodCreatePath
   ) ; end of let
  t
  ) ; end of errset
) ; end of procedure

Now, if i want the user to specify the width and the spacing through form, how can I pass the value to sep and width over here? Can you please help.

Regards,

Manu

I answered this on comp.cad.cadence

Hi,

Sorry if I have already pointed you to this code, but I think that it contains all that you need

 How can I created slotted metal paths?

You will see in this code that there is use of the enterPath function, as well as an options form (CCSslotMetalForm) for the command ("CCSslotMetal" in this case), and the width value on the form is passed to the enter function and ultimately the underlying command that calls rodCreatePath(), which is CCSslotMetalCB(), the callback function that actually does the work.

The code is somewhat lengthy and is probably best not just pasted here, so please take a look at the above Solution link, or just the code at: CCSslotMetal.il

Best regards,

Lawrence.

 Hi ,

I just used used your techinque to generate a single layer shield path.It is working fine.But I also want to go for coaxial shielding for metal2 onward . I want the code such that depending on selected layer ,it should overlap the shield path with higher metal layer with concerned vias, and similarly with bottom metal layer.So can you help me how to proceed .

Regards,

Infy