partlib

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"""
Exporting of GNU PCB files to DXF.
"""
import ezdxf
import sys
import pcb_types
class DxfFootprintWriter():
    """
    Writer for DXF files from GNU PCB footprints.
    """
    def __init__(self):
        self._doc = ezdxf.new('R12')
        self._msp = self._doc.modelspace()
        self._layers = {}
        self._addLayer('clearance', 8)  # gray
        self._addLayer('hole_drill', 3)  # green
        self._addLayer('mask', 16)  # dark red
        self._addLayer('name', 7)  # white
        self._addLayer('number', 7)  # white
        self._addLayer('pad_component', 1)  # red
        self._addLayer('pad_solder', 1)  # red
        self._addLayer('pin_copper', 1)  # red
        self._addLayer('pin_drill', 5)  # blue
        self._addLayer('silk_center', 2)  # yellow
    def _addCircle(self, x: pcb_types.Coordinate, y: pcb_types.Coordinate,
                   d: pcb_types.Coordinate, layer_name: str):
        self._msp.add_circle((x.mm, -y.mm),
                             radius=d.mm / 2,
                             dxfattribs={'layer': layer_name})
    def _addOctagon(self, cx: pcb_types.Coordinate, cy: pcb_types.Coordinate,
                    size: pcb_types.Coordinate, layer_name: str):
        l = size.mm / 2
        s = l / (1 + 2**.5)
        points = [(cx.mm - s, -cy.mm - l), (cx.mm + s, -cy.mm - l),
                  (cx.mm + l, -cy.mm - s), (cx.mm + l, -cy.mm + s),
                  (cx.mm + s, -cy.mm + l), (cx.mm - s, -cy.mm + l),
                  (cx.mm - l, -cy.mm + s), (cx.mm - l, -cy.mm - s),
                  (cx.mm - s, -cy.mm - l)]
        self._msp.add_polyline2d(points, dxfattribs={'layer': layer_name})
    def _addRect(self, x1: pcb_types.Coordinate, y1: pcb_types.Coordinate,
                 x2: pcb_types.Coordinate, y2: pcb_types.Coordinate,
                 width: pcb_types.Coordinate, layer_name: str):
        v1 = pcb_types.Vector(x1, y1)
 
 
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