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Modifying ns_gerber.il

joma

 Hi,

I am trying to modify the ns_gerber.il to add some extra layers to the conductor films. My if-then statements seem to work ok for the TOP and BOTTOM layers but I cannot get the inner layers to work. If you look at the commented out lines in the code below you can see my various attempts using else, != and using layer names directly. Any help telling me where I am going wrong greatly appreciated.
Jim O'Mahony

; get conductor layers
my_layers = axlGetParam("paramLayerGroup:etch")
etchcount = 0
i = 0
foreach(layer my_layers->groupMembers
layerparams = axlLayerGet(strcat("ETCH/" layer))
if(layerparams->type=="PLANE" && layerparams->drcPhotoType=="negative" then
pm = 0 ; plot mode negative
else
pm = 1 ; plot mode positive
)

if(layer=="TOP" then tex = strcat("Texttop")

else tex=strcat("Text" layer))

;if(layer=="L1" then tex = strcat("Text" layer))
;if(layer=="L2" then tex = strcat("Text" layer))
;if(layer!="TOP" then tex = strcat("Text" layer)

if(layer=="BOTTOM" then tex = strcat("Textbot"))

 

sprintf(film_name "%d_%s" ++i layer)
ld1 = strcat("VIA CLASS/" layer)
ld2 = strcat("PIN/" layer)
ld3 = strcat("ETCH/" layer)

tc = strcat("BOARD GEOMETRY/TOOLING_CORNERS")
texlayer = strcat("BOARD GEOMETRY/" tex)

data_list = (list ld1 ld2 ld3 tc texlayer)
param_list = (list 0 0 0 ulw sbb pm 0 0 0 0 0 1 1)
(axlfcreate film_name param_list data_list)
++etchcount)

Parents

  • Thanks guys, I realised my initial mistake after driving home for an hour !
    I think I get no response for the inner layers because they do not exist in the design.

    To explain, I have existing inner layers called textc2(first inner), textc3(second inner) etc. depending on the number of layers in the design. I see from the exising code that Cadence uses L1 for the first inner layer and L2 for the next etc. Having thought about it, I would rather adapt the code to match my existing library layer names than change the library.
    Therefore gives me the problem of how to parse the layer name in order to strip the "L" and leave the layer number (as integer value) and then add one to it (to say variable foo) before using a stringcat("textc" foo) to finish.
    Many years ago I used grep and/or awk to do substitutions but I have no idea how to do that in Skill code.

    Jim

Reply

  • Thanks guys, I realised my initial mistake after driving home for an hour !
    I think I get no response for the inner layers because they do not exist in the design.

    To explain, I have existing inner layers called textc2(first inner), textc3(second inner) etc. depending on the number of layers in the design. I see from the exising code that Cadence uses L1 for the first inner layer and L2 for the next etc. Having thought about it, I would rather adapt the code to match my existing library layer names than change the library.
    Therefore gives me the problem of how to parse the layer name in order to strip the "L" and leave the layer number (as integer value) and then add one to it (to say variable foo) before using a stringcat("textc" foo) to finish.
    Many years ago I used grep and/or awk to do substitutions but I have no idea how to do that in Skill code.

    Jim

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