A simple python script to extract tracks/vias from a PADS ASCII file

asc_2_kicad.py

# MIT License

# Copyright (c) 2022 Greg Davill <[email protected]>

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
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# The above copyright notice and this permission notice shall be included in all
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# SOFTWARE.

# Script to collect tracks/vias from a PADs file
# !PADS-POWERPCB-V5.0-BASIC! DESIGN DATABASE ASCII FILE 1.0
# *PCB*        GENERAL PARAMETERS OF THE PCB DESIGN

import re
from pcbnew import *
pcb = CreateEmptyBoard()
pcb.GetDesignSettings().SetCopperLayerCount(6)

divisor = ((10000)*150)

# Test.txt contains just the *ROUTE* data that looks like this:
'''
*ROUTE*

*REMARK* *SIGNAL* SIGNAME SIGFLAG COLOR
*REMARK* REFNM.PIN .REUSE. INSTANCE RSIG REFNM.PIN .REUSE. INSTANCE RSIG
*REMARK* XLOC YLOC LAYER SEGMENTWIDTH FLAGS [ARCDIR/VIANAME] [TEARDROP [P WID LEN [FLAGS]] [N WID LEN [FLAGS]]] [JMPNM JMPFLAG] REUSE INST RSIG


*SIGNAL* GND 2 -2
UU1.AG8                         UU1.AF15                        
-9750171 4499991 1 381000 1280  THERMAL  TEARDROP N 90 90 
-10594848 4499991 1 381000 1536 
-10865358 4770501 0 152400 768 VIA8X16 THERMAL  TEARDROP P 90 90 
-10566273 -1143381 1 152400 1280 VIA8X16 THERMAL  TEARDROP N 90 90 
-10522839 -1186815 1 152400 1536 
-9436608 -1186815 1 152400 1536 
-8999982 -750189 65 152400 768  THERMAL  TEARDROP P 90 90 
UU1.AE9                         UU1.AG8                         
-8250174 3750183 1 381000 1280  THERMAL  TEARDROP N 90 90 
-8250174 4412361 1 381000 1536 
-8299323 4461510 1 381000 1536 
-8299323 4481322 0 152400 768 VIA8X16 THERMAL  TEARDROP P 90 90 
-9750171 4499991 65 152400 1792  THERMAL 
UU1.AE7                         UU1.AG8                         
-8250174 5250180 1 381000 1280  THERMAL  TEARDROP N 90 90 
-8250174 4560189 1 381000 1536 
-8299323 4511040 1 381000 1536 
-8299323 4481322 0 152400 768 VIA8X16 THERMAL  TEARDROP P 90 90 
-9750171 4499991 65 152400 1792  THERMAL 
'''


with open("test.txt") as f:
    data = f.read()


signal_filter = re.compile(r"\n\*SIGNAL\*.+((?:\n.+)+)", re.MULTILINE)

l = [
    F_Cu,
    In1_Cu,
    In2_Cu,
    In3_Cu,
    In4_Cu,
    In5_Cu,
    B_Cu,
]

for trace in signal_filter.findall(data):
    c = []
    for line in trace.split("\n"):
        fields = line.split()
        if len(fields) >= 5:
                
            x,y,width = [int(i)/divisor for i in [fields[0],fields[1],fields[3]]]
            layer = int(fields[2])
            if layer == 65:
                layer = 6
            if "VIA8X16" in line:
                v = PCB_VIA(pcb)
                pcb.Add(v)
                v.SetWidth(FromMM(0.4))
                v.SetDrill(FromMM(0.2))
                v.SetPosition(wxPoint(FromMM(-x), FromMM(y)))
                #print(f"via: {x:.3f}mm,{y:.3f}mm ")
            
            #print(f"{x:.3f}mm,{y:.3f}mm [{width:.2f}][{layer}]")
            c += [(-x,y,width, layer)]

    for i in range(len(c) - 1):
        t = PCB_TRACK(pcb)
        if c[i][3] == 0:
            continue
        t.SetLayer(l[c[i][3] - 1])
        t.SetWidth(FromMM(c[i][2]))

        t.SetStart(wxPoint(FromMM(c[i][0]),FromMM(c[i][1])))
        t.SetEnd(wxPoint(FromMM(c[i+1][0]),FromMM(c[i+1][1])))
        pcb.Add(t)

pcb.Save("test.kicad_pcb")