pcbnew plugin to convert graphical arc to traces

arc_to_trace.py

#!/usr/bin/env python

import pcbnew
import os
import math

RESOLUTION = 1
EPSILON = 1e-4

def arc_to_trace(board, arc):
    mid = arc.GetPosition()
    radius = arc.GetRadius()
    start_angle = arc.GetArcAngleStart() / 10
    sweep = arc.GetAngle() / 10
    width = arc.GetWidth()
    direction = -1 if sweep < 0 else 1
    def point(angle):
        return mid + pcbnew.wxPoint(round(math.cos(math.radians(angle)) * radius), round(math.sin(math.radians(angle)) * radius))

    angle = 0
    while abs(sweep) - angle > EPSILON:
        pos = point(start_angle + angle * direction)
        angle += min(RESOLUTION, abs(sweep) - angle)
        next_pos = point(start_angle + angle * direction)

        track = pcbnew.TRACK(None)
        track.SetStart(pos)
        track.SetEnd(next_pos)
        track.SetWidth(width)
        board.Add(track)

    arc.ClearSelected()
    board.Remove(arc)


class SimplePlugin(pcbnew.ActionPlugin):
    def defaults(self):
        self.name = "Arc to trace"
        self.category = "Trace tools"
        self.description = "Converts the selected arc to a trace"
        self.show_toolbar_button = True
        self.icon_file_name = os.path.join(os.path.dirname(__file__), 'arc_to_trace.png') # Optional, defaults to ""

    def Run(self):
        board = pcbnew.GetBoard()
        for draw in board.GetDrawings():
            if draw.IsSelected() and draw.GetShape() == pcbnew.S_ARC:
                arc_to_trace(board, draw)

if __name__ == '__main__':
    board = pcbnew.LoadBoard('/home/tsys/work/pcb/PowerPack/PowerPack-Brain/PowerPack-Brain.kicad_pcb')
    for draw in board.GetDrawings():
        print(draw.GetShapeStr())
        if draw.GetShapeStr() == 'Arc':
            arc_to_trace(board, draw)
else:
    SimplePlugin().register() # Instantiate and register to Pcbnew