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KiCAD 5978, Python 2.7.2, Copper Arc Drawing Script
# tested in python 2.7.2
# works for KiCAD 5978 by parsing output of this script into a xyz.kicad_pcb at the right place
import sys, os
import shutil
import math
# 0 1 2 3 4 5 6
LIST_elmt = [" ("," (start ",") (end ",") "," (layer ",") ","))"]
#LIST_elmt = [" (gr_line (start 131.571908 182.314571) (end 112.874456 120.68499) (angle 90) (layer Dwgs.User) (width 0.1))"]
#LIST_elmt = [" (segment (start 118.7 106.7) (end 119.4 106.7) (width 0.25) (layer B.Cu) (net 0))"]
DICT_elmt = {"seg" : ["segment", "(width ", "(net "], # this works for Copper only
"arc" : ["gr_arc", "(angle ", "(width "], # those work on all Non-Copper layers
"lne" : ["gr_line", "(angle ", "(width "],
}
DICT_lyr = { "dwg" : "Dwgs.User",
"cmt" : "Cmts.User",
"cut" : "Edge.Cuts",
"fcu" : "F.Cu",
"bcu" : "B.Cu",
}
def FNC_string (element,
STR_start, #1
STR_end, #2
Angle, #4
layer, #5
width,
):
STR_line = ""
"""
0 1 2 3 4 5
LIST_elmt = [" ("," (start ",") (end ",") "," (layer ",") (width ","))"]
"""
for i in range(len(LIST_elmt)):
STR_line += LIST_elmt[i]
if i == 0:
STR_line += DICT_elmt[element][0]
if i == 1:
STR_line += STR_start
if i == 2:
STR_line += STR_end
if i == 3:
if element == "seg":
STR_line += DICT_elmt[element][1]
STR_angle = "{:.1f}".format(width)
else:
STR_line += DICT_elmt[element][1]
if element == "lne":
STR_angle = "90"
else:
STR_angle = str(Angle)
STR_line += STR_angle + ")"
if i == 4:
STR_line += DICT_lyr[layer]
if i == 5:
if element == "seg":
STR_line += DICT_elmt[element][2]
STR_line += str(Angle)
else:
STR_line += DICT_elmt[element][2]
STR_line += "{:.2f}".format(width)
STR_line += "\n"
return STR_line
def FNC_arc (cntr, # (x,y)
radius,
sides,
startangle,
angle,
tw, # track width
layer,
net,
):
STR_data = ""
baseX = cntr[0]
baseY = cntr[1]
sideangle = angle / sides
for i in range(sides):
startX = baseX + radius * math.sin(math.radians(sideangle*(i+0.5) + startangle))
startY = baseY + radius * math.cos(math.radians(sideangle*(i+0.5) + startangle))
endX = baseX + radius * math.sin(math.radians(sideangle*(i+1.5) + startangle))
endY = baseY + radius * math.cos(math.radians(sideangle*(i+1.5) + startangle))
STR_data += FNC_string ("seg", #type of line, change if not used for copper layer
"{:.6f}".format(startX) + " " + "{:.6f}".format(startY), # start point
"{:.6f}".format(endX) + " " + "{:.6f}".format(endY), # end point
net, # angle or net value
layer, # layer on pcb
tw, # track width
)
return STR_data
if __name__ == '__main__':
#adjust parameters to your liking here
Center = [105.0,105.0] # x/y coordinates of the centre of the circle/arc
Radius = 20 # mm
Sides = 36
StartAngle = 45.0 # degrees
Angle = 135.0 # degrees
TrackWidth = 0.4
Layer = "fcu"
Net = "0"
print FNC_arc (Center,
Radius,
Sides,
StartAngle,
Angle,
TrackWidth,
Layer,
Net,
)
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