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authorjaseg <git@jaseg.de>2021-06-13 15:00:17 +0200
committerjaseg <git@jaseg.de>2021-06-13 15:00:17 +0200
commit4eb0e063bcd34c21b737023aa6ed5baed80658d1 (patch)
tree3a56ef7d05f4f64cde930f2432119986e4aab49d /gerberex/dxf.py
parent889ea37d9b66cbfb7a61795c7750b9f4311faa3f (diff)
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Repo re-org, make gerberex tests run
Diffstat (limited to 'gerberex/dxf.py')
-rw-r--r--gerberex/dxf.py796
1 files changed, 0 insertions, 796 deletions
diff --git a/gerberex/dxf.py b/gerberex/dxf.py
deleted file mode 100644
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--- a/gerberex/dxf.py
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@@ -1,796 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
-
-import io, sys
-from math import pi, cos, sin, tan, atan, atan2, acos, asin, sqrt
-import dxfgrabber
-from gerber.cam import CamFile, FileSettings
-from gerber.utils import inch, metric, write_gerber_value, rotate_point
-from gerber.gerber_statements import ADParamStmt
-from gerber.excellon_statements import ExcellonTool
-from gerber.excellon_statements import CoordinateStmt
-from gerberex.utility import is_equal_point, is_equal_value
-from gerberex.dxf_path import generate_paths, judge_containment
-from gerberex.excellon import write_excellon_header
-from gerberex.rs274x import write_gerber_header
-
-ACCEPTABLE_ERROR = 0.001
-
-def _normalize_angle(start_angle, end_angle):
- angle = end_angle - start_angle
- if angle > 0:
- start = start_angle % 360
- else:
- angle = -angle
- start = end_angle % 360
- angle = min(angle, 360)
- start = start - 360 if start > 180 else start
-
- regions = []
- while angle > 0:
- end = start + angle
- if end <= 180:
- regions.append((start * pi / 180, end * pi / 180))
- angle = 0
- else:
- regions.append((start * pi / 180, pi))
- angle = end - 180
- start = -180
- return regions
-
-def _intersections_of_line_and_circle(start, end, center, radius, error_range):
- x1 = start[0] - center[0]
- y1 = start[1] - center[1]
- x2 = end[0] - center[0]
- y2 = end[1] - center[1]
-
- dx = x2 - x1
- dy = y2 - y1
- dr = sqrt(dx * dx + dy * dy)
- D = x1 * y2 - x2 * y1
-
- distance = abs(dy * x1 - dx * y1) / dr
-
- D2 = D * D
- dr2 = dr * dr
- r2 = radius * radius
- delta = r2 * dr2 - D2
- if distance > radius - error_range and distance < radius + error_range:
- delta = 0
- if delta < 0:
- return None
-
- sqrt_D = sqrt(delta)
- E_x = -dx * sqrt_D if dy < 0 else dx * sqrt_D
- E_y = abs(dy) * sqrt_D
-
- p1_x = (D * dy + E_x) / dr2
- p2_x = (D * dy - E_x) / dr2
- p1_y = (-D * dx + E_y) / dr2
- p2_y = (-D * dx - E_y) / dr2
-
- p1_angle = atan2(p1_y, p1_x)
- p2_angle = atan2(p2_y, p2_x)
- if dx == 0:
- p1_t = (p1_y - y1) / dy
- p2_t = (p2_y - y1) / dy
- else:
- p1_t = (p1_x - x1) / dx
- p2_t = (p2_x - x1) / dx
-
- if delta == 0:
- return (
- (p1_x + center[0], p1_y + center[1]),
- None,
- p1_angle, None,
- p1_t, None
- )
- else:
- return (
- (p1_x + center[0], p1_y + center[1]),
- (p2_x + center[0], p2_y + center[1]),
- p1_angle, p2_angle,
- p1_t, p2_t
- )
-
-class DxfStatement(object):
- def __init__(self, entity):
- self.entity = entity
- self.start = None
- self.end = None
- self.is_closed = False
-
- def to_inch(self):
- pass
-
- def to_metric(self):
- pass
-
- def is_equal_to(self, target, error_range=0):
- return False
-
- def reverse(self):
- raise Exception('Not implemented')
-
- def offset(self, offset_x, offset_y):
- raise Exception('Not supported')
-
- def rotate(self, angle, center=(0, 0)):
- raise Exception('Not supported')
-
-
-class DxfLineStatement(DxfStatement):
- @classmethod
- def from_entity(cls, entity):
- start = (entity.start[0], entity.start[1])
- end = (entity.end[0], entity.end[1])
- return cls(entity, start, end)
-
- @property
- def bounding_box(self):
- return (min(self.start[0], self.end[0]),
- min(self.start[1], self.end[1]),
- max(self.start[0], self.end[0]),
- max(self.start[1], self.end[1]))
-
- def __init__(self, entity, start, end):
- super(DxfLineStatement, self).__init__(entity)
- self.start = start
- self.end = end
-
- def to_inch(self):
- self.start = (
- inch(self.start[0]), inch(self.start[1]))
- self.end = (
- inch(self.end[0]), inch(self.end[1]))
-
- def to_metric(self):
- self.start = (
- metric(self.start[0]), metric(self.start[1]))
- self.end = (
- metric(self.end[0]), metric(self.end[1]))
-
- def is_equal_to(self, target, error_range=0):
- if not isinstance(target, DxfLineStatement):
- return False
- return (is_equal_point(self.start, target.start, error_range) and \
- is_equal_point(self.end, target.end, error_range)) or \
- (is_equal_point(self.start, target.end, error_range) and \
- is_equal_point(self.end, target.start, error_range))
-
- def reverse(self):
- pt = self.start
- self.start = self.end
- self.end = pt
-
- def dots(self, pitch, width, offset=0):
- x0, y0 = self.start
- x1, y1 = self.end
- y1 = self.end[1]
- xp = x1 - x0
- yp = y1 - y0
- l = sqrt(xp * xp + yp * yp)
- xd = xp * pitch / l
- yd = yp * pitch / l
- x0 += xp * offset / l
- y0 += yp * offset / l
-
- if offset > l + width / 2:
- return (None, offset - l)
- else:
- d = offset;
- while d < l + width / 2:
- yield ((x0, y0), d - l)
- x0 += xd
- y0 += yd
- d += pitch
-
- def offset(self, offset_x, offset_y):
- self.start = (self.start[0] + offset_x, self.start[1] + offset_y)
- self.end = (self.end[0] + offset_x, self.end[1] + offset_y)
-
- def rotate(self, angle, center=(0, 0)):
- self.start = rotate_point(self.start, angle, center)
- self.end = rotate_point(self.end, angle, center)
-
- def intersections_with_halfline(self, point_from, point_to, error_range):
- denominator = (self.end[0] - self.start[0]) * (point_to[1] - point_from[1]) - \
- (self.end[1] - self.start[1]) * (point_to[0] - point_from[0])
- de = error_range * error_range
- if denominator >= -de and denominator <= de:
- return []
- from_dx = point_from[0] - self.start[0]
- from_dy = point_from[1] - self.start[1]
- r = ((point_to[1] - point_from[1]) * from_dx -
- (point_to[0] - point_from[0]) * from_dy) / denominator
- s = ((self.end[1] - self.start[1]) * from_dx -
- (self.end[0] - self.start[0]) * from_dy) / denominator
- dx = (self.end[0] - self.start[0])
- dy = (self.end[1] - self.start[1])
- le = error_range / sqrt(dx * dx + dy * dy)
- if s < 0 or r < -le or r > 1 + le:
- return []
-
- pt = (self.start[0] + (self.end[0] - self.start[0]) * r,
- self.start[1] + (self.end[1] - self.start[1]) * r)
- if is_equal_point(pt, self.start, error_range):
- return []
- else:
- return [pt]
-
- def intersections_with_arc(self, center, radius, angle_regions, error_range):
- intersection = \
- _intersections_of_line_and_circle(self.start, self.end, center, radius, error_range)
- if intersection is None:
- return []
- else:
- p1, p2, p1_angle, p2_angle, p1_t, p2_t = intersection
-
- pts = []
- if p1_t >= 0 and p1_t <= 1:
- for region in angle_regions:
- if p1_angle >= region[0] and p1_angle <= region[1]:
- pts.append(p1)
- break
- if p2 is not None and p2_t >= 0 and p2_t <= 1:
- for region in angle_regions:
- if p2_angle >= region[0] and p2_angle <= region[1]:
- pts.append(p2)
- break
-
- return pts
-
-class DxfArcStatement(DxfStatement):
- def __init__(self, entity):
- super(DxfArcStatement, self).__init__(entity)
- if entity.dxftype == 'CIRCLE':
- self.radius = self.entity.radius
- self.center = (self.entity.center[0], self.entity.center[1])
- self.start = (self.center[0] + self.radius, self.center[1])
- self.end = self.start
- self.start_angle = 0
- self.end_angle = 360
- self.is_closed = True
- elif entity.dxftype == 'ARC':
- self.start_angle = self.entity.start_angle
- self.end_angle = self.entity.end_angle
- self.radius = self.entity.radius
- self.center = (self.entity.center[0], self.entity.center[1])
- self.start = (
- self.center[0] + self.radius * cos(self.start_angle / 180. * pi),
- self.center[1] + self.radius * sin(self.start_angle / 180. * pi),
- )
- self.end = (
- self.center[0] + self.radius * cos(self.end_angle / 180. * pi),
- self.center[1] + self.radius * sin(self.end_angle / 180. * pi),
- )
- angle = self.end_angle - self.start_angle
- self.is_closed = angle >= 360 or angle <= -360
- else:
- raise Exception('invalid DXF type was specified')
- self.angle_regions = _normalize_angle(self.start_angle, self.end_angle)
-
- @property
- def bounding_box(self):
- return (self.center[0] - self.radius, self.center[1] - self.radius,
- self.center[0] + self.radius, self.center[1] + self.radius)
-
- def to_inch(self):
- self.radius = inch(self.radius)
- self.center = (inch(self.center[0]), inch(self.center[1]))
- self.start = (inch(self.start[0]), inch(self.start[1]))
- self.end = (inch(self.end[0]), inch(self.end[1]))
-
- def to_metric(self):
- self.radius = metric(self.radius)
- self.center = (metric(self.center[0]), metric(self.center[1]))
- self.start = (metric(self.start[0]), metric(self.start[1]))
- self.end = (metric(self.end[0]), metric(self.end[1]))
-
- def is_equal_to(self, target, error_range=0):
- if not isinstance(target, DxfArcStatement):
- return False
- aerror_range = error_range / pi * self.radius * 180
- return is_equal_point(self.center, target.center, error_range) and \
- is_equal_value(self.radius, target.radius, error_range) and \
- ((is_equal_value(self.start_angle, target.start_angle, aerror_range) and
- is_equal_value(self.end_angle, target.end_angle, aerror_range)) or
- (is_equal_value(self.start_angle, target.end_angle, aerror_range) and
- is_equal_value(self.end_angle, target.end_angle, aerror_range)))
-
- def reverse(self):
- tmp = self.start_angle
- self.start_angle = self.end_angle
- self.end_angle = tmp
- tmp = self.start
- self.start = self.end
- self.end = tmp
-
- def dots(self, pitch, width, offset=0):
- angle = self.end_angle - self.start_angle
- afactor = 1 if angle > 0 else -1
- aangle = angle * afactor
- L = 2 * pi * self.radius
- l = L * aangle / 360
- pangle = pitch / L * 360
- wangle = width / L * 360
- oangle = offset / L * 360
-
- if offset > l + width / 2:
- yield (None, offset - l)
- else:
- da = oangle
- while da < aangle + wangle / 2:
- cangle = self.start_angle + da * afactor
- x = self.radius * cos(cangle / 180 * pi) + self.center[0]
- y = self.radius * sin(cangle / 180 * pi) + self.center[1]
- remain = (da - aangle) / 360 * L
- yield((x, y), remain)
- da += pangle
-
- def offset(self, offset_x, offset_y):
- self.center = (self.center[0] + offset_x, self.center[1] + offset_y)
- self.start = (self.start[0] + offset_x, self.start[1] + offset_y)
- self.end = (self.end[0] + offset_x, self.end[1] + offset_y)
-
- def rotate(self, angle, center=(0, 0)):
- self.start_angle += angle
- self.end_angle += angle
- self.center = rotate_point(self.center, angle, center)
- self.start = rotate_point(self.start, angle, center)
- self.end = rotate_point(self.end, angle, center)
- self.angle_regions = _normalize_angle(self.start_angle, self.end_angle)
-
- def intersections_with_halfline(self, point_from, point_to, error_range):
- intersection = \
- _intersections_of_line_and_circle(
- point_from, point_to, self.center, self.radius, error_range)
- if intersection is None:
- return []
- else:
- p1, p2, p1_angle, p2_angle, p1_t, p2_t = intersection
-
- if is_equal_point(p1, self.start, error_range):
- p1 = None
- elif p2 is not None and is_equal_point(p2, self.start, error_range):
- p2 = None
-
- def is_contained(angle, region, error):
- if angle >= region[0] - error and angle <= region[1] + error:
- return True
- if angle < 0 and region[1] > 0:
- angle = angle + 2 * pi
- elif angle > 0 and region[0] < 0:
- angle = angle - 2 * pi
- return angle >= region[0] - error and angle <= region[1] + error
-
- aerror = error_range * self.radius
- pts = []
- if p1 is not None and p1_t >= 0 and not is_equal_point(p1, self.start, error_range):
- for region in self.angle_regions:
- if is_contained(p1_angle, region, aerror):
- pts.append(p1)
- break
- if p2 is not None and p2_t >= 0 and not is_equal_point(p2, self.start, error_range):
- for region in self.angle_regions:
- if is_contained(p2_angle, region, aerror):
- pts.append(p2)
- break
-
- return pts
-
- def intersections_with_arc(self, center, radius, angle_regions, error_range):
- x1 = center[0] - self.center[0]
- y1 = center[1] - self.center[1]
- r1 = self.radius
- r2 = radius
- cd_sq = x1 * x1 + y1 * y1
- cd = sqrt(cd_sq)
- rd = abs(r1 - r2)
-
- if (cd >= 0 and cd <= rd) or cd >= r1 + r2:
- return []
-
- A = (cd_sq + r1 * r1 - r2 * r2) / 2
- scale = sqrt(cd_sq * r1 * r1 - A * A) / cd_sq
- xl = A * x1 / cd_sq
- xr = y1 * scale
- yl = A * y1 / cd_sq
- yr = x1 * scale
-
- pt1_x = xl + xr
- pt1_y = yl - yr
- pt2_x = xl - xr
- pt2_y = yl + yr
- pt1_angle1 = atan2(pt1_y, pt1_x)
- pt1_angle2 = atan2(pt1_y - y1, pt1_x - x1)
- pt2_angle1 = atan2(pt2_y, pt2_x)
- pt2_angle2 = atan2(pt2_y - y1, pt2_x - x1)
-
- aerror = error_range * self.radius
- pts=[]
- for region in self.angle_regions:
- if pt1_angle1 >= region[0] and pt1_angle1 <= region[1]:
- for region in angle_regions:
- if pt1_angle2 >= region[0] - aerror and pt1_angle2 <= region[1] + aerror:
- pts.append((pt1_x + self.center[0], pt1_y + self.center[1]))
- break
- break
- for region in self.angle_regions:
- if pt2_angle1 >= region[0] and pt2_angle1 <= region[1]:
- for region in angle_regions:
- if pt2_angle2 >= region[0] - aerror and pt2_angle2 <= region[1] + aerror:
- pts.append((pt2_x + self.center[0], pt2_y + self.center[1]))
- break
- break
- return pts
-
-class DxfPolylineStatement(DxfStatement):
- def __init__(self, entity):
- super(DxfPolylineStatement, self).__init__(entity)
- self.start = (self.entity.points[0][0], self.entity.points[0][1])
- self.is_closed = self.entity.is_closed
- if self.is_closed:
- self.end = self.start
- else:
- self.end = (self.entity.points[-1][0], self.entity.points[-1][1])
-
- def disassemble(self):
- class Item:
- pass
-
- def ptseq():
- for i in range(1, len(self.entity.points)):
- yield i
- if self.entity.is_closed:
- yield 0
-
- x0 = self.entity.points[0][0]
- y0 = self.entity.points[0][1]
- b = self.entity.bulge[0]
- for idx in ptseq():
- pt = self.entity.points[idx]
- x1 = pt[0]
- y1 = pt[1]
- if b == 0:
- item = Item()
- item.dxftype = 'LINE'
- item.start = (x0, y0)
- item.end = (x1, y1)
- item.is_closed = False
- yield DxfLineStatement.from_entity(item)
- else:
- ang = 4 * atan(b)
- xm = x0 + x1
- ym = y0 + y1
- t = 1 / tan(ang / 2)
- xc = (xm - t * (y1 - y0)) / 2
- yc = (ym + t * (x1 - x0)) / 2
- r = sqrt((x0 - xc)*(x0 - xc) + (y0 - yc)*(y0 - yc))
- rx0 = x0 - xc
- ry0 = y0 - yc
- rc = max(min(rx0 / r, 1.0), -1.0)
- start_angle = acos(rc) if ry0 > 0 else 2 * pi - acos(rc)
- start_angle *= 180 / pi
- end_angle = start_angle + ang * 180 / pi
-
- item = Item()
- item.dxftype = 'ARC'
- item.start = (x0, y0)
- item.end = (x1, y1)
- item.start_angle = start_angle
- item.end_angle = end_angle
- item.radius = r
- item.center = (xc, yc)
- item.is_closed = end_angle - start_angle >= 360
- yield DxfArcStatement(item)
-
- x0 = x1
- y0 = y1
- b = self.entity.bulge[idx]
-
- def to_inch(self):
- self.start = (inch(self.start[0]), inch(self.start[1]))
- self.end = (inch(self.end[0]), inch(self.end[1]))
- for idx in range(0, len(self.entity.points)):
- self.entity.points[idx] = (
- inch(self.entity.points[idx][0]), inch(self.entity.points[idx][1]))
-
- def to_metric(self):
- self.start = (metric(self.start[0]), metric(self.start[1]))
- self.end = (metric(self.end[0]), metric(self.end[1]))
- for idx in range(0, len(self.entity.points)):
- self.entity.points[idx] = (
- metric(self.entity.points[idx][0]), metric(self.entity.points[idx][1]))
-
- def offset(self, offset_x, offset_y):
- for idx in range(len(self.entity.points)):
- self.entity.points[idx] = (
- self.entity.points[idx][0] + offset_x, self.entity.points[idx][1] + offset_y)
-
- def rotate(self, angle, center=(0, 0)):
- for idx in range(len(self.entity.points)):
- self.entity.points[idx] = rotate_point(self.entity.points[idx], angle, center)
-
-class DxfStatements(object):
- def __init__(self, statements, units, dcode=10, draw_mode=None, fill_mode=None):
- if draw_mode is None:
- draw_mode = DxfFile.DM_LINE
- if fill_mode is None:
- fill_mode = DxfFile.FM_TURN_OVER
- self._units = units
- self.dcode = dcode
- self.draw_mode = draw_mode
- self.fill_mode = fill_mode
- self.pitch = inch(1) if self._units == 'inch' else 1
- self.width = 0
- self.error_range = inch(ACCEPTABLE_ERROR) if self._units == 'inch' else ACCEPTABLE_ERROR
- self.statements = list(filter(
- lambda i: not (isinstance(i, DxfLineStatement) and \
- is_equal_point(i.start, i.end, self.error_range)),
- statements
- ))
- self.close_paths, self.open_paths = generate_paths(self.statements, self.error_range)
- self.sorted_close_paths = []
- self.polarity = True # True means dark, False means clear
-
- @property
- def units(self):
- return _units
-
- def _polarity_command(self, polarity=None):
- if polarity is None:
- polarity = self.polarity
- return '%LPD*%' if polarity else '%LPC*%'
-
- def _prepare_sorted_close_paths(self):
- if self.sorted_close_paths:
- return
- for i in range(0, len(self.close_paths)):
- for j in range(i + 1, len(self.close_paths)):
- containee, container = judge_containment(
- self.close_paths[i], self.close_paths[j], self.error_range)
- if containee is not None:
- containee.containers.append(container)
- self.sorted_close_paths = sorted(self.close_paths, key=lambda path: len(path.containers))
-
- def to_gerber(self, settings=FileSettings()):
- def gerbers():
- yield 'G75*'
- yield self._polarity_command()
- yield 'D{0}*'.format(self.dcode)
- if self.draw_mode == DxfFile.DM_FILL:
- yield 'G36*'
- if self.fill_mode == DxfFile.FM_TURN_OVER:
- self._prepare_sorted_close_paths()
- polarity = self.polarity
- level = 0
- for path in self.sorted_close_paths:
- if len(path.containers) > level:
- level = len(path.containers)
- polarity = not polarity
- yield 'G37*'
- yield self._polarity_command(polarity)
- yield 'G36*'
- yield path.to_gerber(settings)
- else:
- for path in self.close_paths:
- yield path.to_gerber(settings)
- yield 'G37*'
- else:
- pitch = self.pitch if self.draw_mode == DxfFile.DM_MOUSE_BITES else 0
- for path in self.open_paths:
- yield path.to_gerber(settings, pitch=pitch, width=self.width)
- for path in self.close_paths:
- yield path.to_gerber(settings, pitch=pitch, width=self.width)
-
- return '\n'.join(gerbers())
-
- def to_excellon(self, settings=FileSettings()):
- if self.draw_mode == DxfFile.DM_FILL:
- return
- def drills():
- pitch = self.pitch if self.draw_mode == DxfFile.DM_MOUSE_BITES else 0
- for path in self.open_paths:
- yield path.to_excellon(settings, pitch=pitch, width=self.width)
- for path in self.close_paths:
- yield path.to_excellon(settings, pitch=pitch, width=self.width)
- return '\n'.join(drills())
-
- def to_inch(self):
- if self._units == 'metric':
- self._units = 'inch'
- self.pitch = inch(self.pitch)
- self.width = inch(self.width)
- self.error_range = inch(self.error_range)
- for path in self.open_paths:
- path.to_inch()
- for path in self.close_paths:
- path.to_inch()
-
- def to_metric(self):
- if self._units == 'inch':
- self._units = 'metric'
- self.pitch = metric(self.pitch)
- self.width = metric(self.width)
- self.error_range = metric(self.error_range)
- for path in self.open_paths:
- path.to_metric()
- for path in self.close_paths:
- path.to_metric()
-
- def offset(self, offset_x, offset_y):
- for path in self.open_paths:
- path.offset(offset_x, offset_y)
- for path in self.close_paths:
- path.offset(offset_x, offset_y)
-
- def rotate(self, angle, center=(0, 0)):
- for path in self.open_paths:
- path.rotate(angle, center)
- for path in self.close_paths:
- path.rotate(angle, center)
-
-class DxfFile(CamFile):
- DM_LINE = 0
- DM_FILL = 1
- DM_MOUSE_BITES = 2
-
- FM_SIMPLE = 0
- FM_TURN_OVER = 1
-
- FT_RX274X = 0
- FT_EXCELLON = 1
-
- @classmethod
- def from_dxf(cls, dxf, settings=None, draw_mode=None, filename=None):
- fsettings = settings if settings else \
- FileSettings(zero_suppression='leading')
-
- if dxf.header['$INSUNITS'] == 1:
- fsettings.units = 'inch'
- if not settings:
- fsettings.format = (2, 5)
- else:
- fsettings.units = 'metric'
- if not settings:
- fsettings.format = (3, 4)
-
- statements = []
- for entity in dxf.entities:
- if entity.dxftype == 'LWPOLYLINE':
- statements.append(DxfPolylineStatement(entity))
- elif entity.dxftype == 'LINE':
- statements.append(DxfLineStatement.from_entity(entity))
- elif entity.dxftype == 'CIRCLE':
- statements.append(DxfArcStatement(entity))
- elif entity.dxftype == 'ARC':
- statements.append(DxfArcStatement(entity))
-
- return cls(statements, fsettings, draw_mode, filename)
-
- @classmethod
- def rectangle(cls, width, height, left=0, bottom=0, units='metric', draw_mode=None, filename=None):
- if units == 'metric':
- settings = FileSettings(units=units, zero_suppression='leading', format=(3,4))
- else:
- settings = FileSettings(units=units, zero_suppression='leading', format=(2,5))
- statements = [
- DxfLineStatement(None, (left, bottom), (left + width, bottom)),
- DxfLineStatement(None, (left + width, bottom), (left + width, bottom + height)),
- DxfLineStatement(None, (left + width, bottom + height), (left, bottom + height)),
- DxfLineStatement(None, (left, bottom + height), (left, bottom)),
- ]
- return cls(statements, settings, draw_mode, filename)
-
- def __init__(self, statements, settings=None, draw_mode=None, filename=None):
- if not settings:
- settings = FileSettings(units='metric', format=(3,4), zero_suppression='leading')
- if draw_mode == None:
- draw_mode = self.DM_LINE
-
- super(DxfFile, self).__init__(settings=settings, filename=filename)
- self._draw_mode = draw_mode
- self._fill_mode = self.FM_TURN_OVER
-
- self.aperture = ADParamStmt.circle(dcode=10, diameter=0.0)
- if settings.units == 'inch':
- self.aperture.to_inch()
- else:
- self.aperture.to_metric()
- self.statements = DxfStatements(
- statements, self.units, dcode=self.aperture.d, draw_mode=self.draw_mode, fill_mode=self.filename)
-
- @property
- def dcode(self):
- return self.aperture.dcode
-
- @dcode.setter
- def dcode(self, value):
- self.aperture.d = value
- self.statements.dcode = value
-
- @property
- def width(self):
- return self.aperture.modifiers[0][0]
-
- @width.setter
- def width(self, value):
- self.aperture.modifiers = ([float(value),],)
- self.statements.width = value
-
- @property
- def draw_mode(self):
- return self._draw_mode
-
- @draw_mode.setter
- def draw_mode(self, value):
- self._draw_mode = value
- self.statements.draw_mode = value
-
- @property
- def fill_mode(self):
- return self._fill_mode
-
- @fill_mode.setter
- def fill_mode(self, value):
- self._fill_mode = value
- self.statements.fill_mode = value
-
- @property
- def pitch(self):
- return self.statements.pitch
-
- @pitch.setter
- def pitch(self, value):
- self.statements.pitch = value
-
- def write(self, filename=None, filetype=FT_RX274X):
- self.settings.notation = 'absolute'
- self.settings.zeros = 'trailing'
- filename = filename if filename is not None else self.filename
- with open(filename, 'w') as f:
- if filetype == self.FT_RX274X:
- write_gerber_header(f, self.settings)
- f.write(self.aperture.to_gerber(self.settings) + '\n')
- f.write(self.statements.to_gerber(self.settings) + '\n')
- f.write('M02*\n')
- else:
- tools = [ExcellonTool(self.settings, number=1, diameter=self.width)]
- write_excellon_header(f, self.settings, tools)
- f.write('T01\n')
- f.write(self.statements.to_excellon(self.settings) + '\n')
- f.write('M30\n')
-
-
- def to_inch(self):
- if self.units == 'metric':
- self.aperture.to_inch()
- self.statements.to_inch()
- self.pitch = inch(self.pitch)
- self.units = 'inch'
-
- def to_metric(self):
- if self.units == 'inch':
- self.aperture.to_metric()
- self.statements.to_metric()
- self.pitch = metric(self.pitch)
- self.units = 'metric'
-
- def offset(self, offset_x, offset_y):
- self.statements.offset(offset_x, offset_y)
-
- def rotate(self, angle, center=(0, 0)):
- self.statements.rotate(angle, center)
-
- def negate_polarity(self):
- self.statements.polarity = not self.statements.polarity
-
-def loads(data, filename=None):
- if sys.version_info.major == 2:
- data = unicode(data)
- stream = io.StringIO(data)
- dxf = dxfgrabber.read(stream)
- return DxfFile.from_dxf(dxf)