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-rw-r--r--gerbonara/gerber/graphic_objects.py148
1 files changed, 97 insertions, 51 deletions
diff --git a/gerbonara/gerber/graphic_objects.py b/gerbonara/gerber/graphic_objects.py
index 5c523d5..d9736cf 100644
--- a/gerbonara/gerber/graphic_objects.py
+++ b/gerbonara/gerber/graphic_objects.py
@@ -5,29 +5,69 @@ from dataclasses import dataclass, KW_ONLY, astuple, replace
from . import graphic_primitives as gp
from .gerber_statements import *
+
+def convert(value, src, dst):
+ if src == dst or src is None or dst is None or value is None:
+ return value
+ elif dst == 'mm':
+ return value * 25.4
+ else:
+ return value / 25.4
+
+class Length:
+ def __init__(self, obj_type):
+ self.type = obj_type
+
@dataclass
class GerberObject:
_ : KW_ONLY
polarity_dark : bool = True
unit : str = None
- def to_primitives(self):
+ def converted(self, unit):
+ return replace(self,
+ **{
+ f.name: convert(getattr(self, f.name), self.unit, unit)
+ for f in fields(self)
+ })
+
+ def _conv(self, value, unit):
+ return convert(value, src=unit, dst=self.unit)
+
+ def with_offset(self, dx, dy, unit='mm'):
+ dx, dy = self._conv(dx, unit), self._conv(dy, unit)
+ return self._with_offset(dx, dy)
+
+ def rotate(self, rotation, cx=0, cy=0, unit='mm'):
+ cx, cy = self._conv(cx, unit), self._conv(cy, unit)
+ return self._rotate(cx, cy)
+
+ def bounding_box(self, unit=None):
+ bboxes = [ p.bounding_box for p in self.to_primitives(unit) ]
+ min_x = min(min_x for (min_x, _min_y), _ in bboxes)
+ min_y = min(min_y for (_min_x, min_y), _ in bboxes)
+ max_x = max(max_x for _, (max_x, _max_y) in bboxes)
+ max_y = max(max_y for _, (_max_x, max_y) in bboxes)
+ return ((min_x, min_y), (max_x, max_y))
+
+ def to_primitives(self, unit=None):
raise NotImplementedError()
@dataclass
class Flash(GerberObject):
- x : float
- y : float
+ x : Length(float)
+ y : Length(float)
aperture : object
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return replace(self, x=self.x+dx, y=self.y+dy)
- def rotate(self, rotation, cx=0, cy=0):
+ def _rotate(self, rotation, cx=0, cy=0):
self.x, self.y = gp.rotate_point(self.x, self.y, rotation, cx, cy)
- def to_primitives(self):
- yield from self.aperture.flash(self.x, self.y)
+ def to_primitives(self, unit=None):
+ conv = self.converted(unit)
+ yield from self.aperture.flash(conv.x, conv.y, unit)
def to_statements(self, gs):
yield from gs.set_polarity(self.polarity_dark)
@@ -48,31 +88,33 @@ class Region(GerberObject):
def __bool__(self):
return bool(self.poly)
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return Region([ (x+dx, y+dy) for x, y in self.poly.outline ],
self.poly.arc_centers,
polarity_dark=self.polarity_dark,
unit=self.unit)
- def rotate(self, angle, cx=0, cy=0):
+ def _rotate(self, angle, cx=0, cy=0):
self.poly.outline = [ gp.rotate_point(x, y, angle, cx, cy) for x, y in self.poly.outline ]
self.poly.arc_centers = [
- gp.rotate_point(*center, angle, cx, cy) if center else None
- for center in self.poly.arc_centers ]
+ (arc[0], gp.rotate_point(*arc[1], angle, cx, cy)) if arc else None
+ for arc in self.poly.arc_centers ]
def append(self, obj):
+ if obj.unit != self.unit:
+ raise ValueError('Cannot append Polyline with "{obj.unit}" coords to Region with "{self.unit}" coords.')
if not self.poly.outline:
self.poly.outline.append(obj.p1)
self.poly.outline.append(obj.p2)
if isinstance(obj, Arc):
- self.poly.arc_centers.append(obj.center)
+ self.poly.arc_centers.append((obj.clockwise, obj.center))
else:
self.poly.arc_centers.append(None)
- def to_primitives(self):
+ def to_primitives(self, unit=None):
self.poly.polarity_dark = polarity_dark
- yield self.poly
+ yield self.poly.converted(unit)
def to_statements(self, gs):
yield from gs.set_polarity(self.polarity_dark)
@@ -87,9 +129,9 @@ class Region(GerberObject):
gs.update_point(*point, unit=self.unit)
else:
- cx, cy = arc_center
+ clockwise, (cx, cy) = arc_center
x2, y2 = point
- yield from gs.set_interpolation_mode(CircularCCWModeStmt)
+ yield from gs.set_interpolation_mode(CircularCWModeStmt if clockwise else CircularCCWModeStmt)
yield InterpolateStmt(x2, y2, cx-x2, cy-y2, unit=self.unit)
gs.update_point(x2, y2, unit=self.unit)
@@ -99,16 +141,16 @@ class Region(GerberObject):
@dataclass
class Line(GerberObject):
# Line with *round* end caps.
- x1 : float
- y1 : float
- x2 : float
- y2 : float
+ x1 : Length(float)
+ y1 : Length(float)
+ x2 : Length(float)
+ y2 : Length(float)
aperture : object
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return replace(self, x1=self.x1+dx, y1=self.y1+dy, x2=self.x2+dx, y2=self.y2+dy)
- def rotate(self, rotation, cx=0, cy=0):
+ def _rotate(self, rotation, cx=0, cy=0):
self.x1, self.y1 = gp.rotate_point(self.x1, self.y1, rotation, cx, cy)
self.x2, self.y2 = gp.rotate_point(self.x2, self.y2, rotation, cx, cy)
@@ -120,8 +162,9 @@ class Line(GerberObject):
def p2(self):
return self.x2, self.y2
- def to_primitives(self):
- yield gp.Line(*self.p1, *self.p2, self.aperture.equivalent_width, polarity_dark=self.polarity_dark)
+ def to_primitives(self, unit=None):
+ conv = self.converted(unit)
+ yield gp.Line(*conv.p1, *conv.p2, self.aperture.equivalent_width(unit), polarity_dark=self.polarity_dark)
def to_statements(self, gs):
yield from gs.set_polarity(self.polarity_dark)
@@ -134,32 +177,33 @@ class Line(GerberObject):
@dataclass
class Drill(GerberObject):
- x : float
- y : float
- diameter : float
+ x : Length(float)
+ y : Length(float)
+ diameter : Length(float)
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return replace(self, x=self.x+dx, y=self.y+dy)
- def rotate(self, angle, cx=0, cy=0):
+ def _rotate(self, angle, cx=0, cy=0):
self.x, self.y = gp.rotate_point(self.x, self.y, angle, cx, cy)
- def to_primitives(self):
- yield gp.Circle(self.x, self.y, self.diameter/2)
+ def to_primitives(self, unit=None):
+ conv = self.converted(unit)
+ yield gp.Circle(conv.x, conv.y, conv.diameter/2)
@dataclass
class Slot(GerberObject):
- x1 : float
- y1 : float
- x2 : float
- y2 : float
- width : float
+ x1 : Length(float)
+ y1 : Length(float)
+ x2 : Length(float)
+ y2 : Length(float)
+ width : Length(float)
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return replace(self, x1=self.x1+dx, y1=self.y1+dy, x2=self.x2+dx, y2=self.y2+dy)
- def rotate(self, rotation, cx=0, cy=0):
+ def _rotate(self, rotation, cx=0, cy=0):
if cx is None:
cx = (self.x1 + self.x2) / 2
cy = (self.y1 + self.y2) / 2
@@ -174,22 +218,23 @@ class Slot(GerberObject):
def p2(self):
return self.x2, self.y2
- def to_primitives(self):
- yield gp.Line(*self.p1, *self.p2, self.width, polarity_dark=self.polarity_dark)
+ def to_primitives(self, unit=None):
+ conv = self.converted(unit)
+ yield gp.Line(*conv.p1, *conv.p2, conv.width, polarity_dark=self.polarity_dark)
@dataclass
class Arc(GerberObject):
- x1 : float
- y1 : float
- x2 : float
- y2 : float
- cx : float
- cy : float
- flipped : bool
+ x1 : Length(float)
+ y1 : Length(float)
+ x2 : Length(float)
+ y2 : Length(float)
+ cx : Length(float)
+ cy : Length(float)
+ clockwise : bool
aperture : object
- def with_offset(self, dx, dy):
+ def _with_offset(self, dx, dy):
return replace(self, x1=self.x1+dx, y1=self.y1+dy, x2=self.x2+dx, y2=self.y2+dy)
@property
@@ -204,15 +249,16 @@ class Arc(GerberObject):
def center(self):
return self.cx + self.x1, self.cy + self.y1
- def rotate(self, rotation, cx=0, cy=0):
+ def _rotate(self, rotation, cx=0, cy=0):
# rotate center first since we need old x1, y1 here
new_cx, new_cy = gp.rotate_point(*self.center, rotation, cx, cy)
self.x1, self.y1 = gp.rotate_point(self.x1, self.y1, rotation, cx, cy)
self.x2, self.y2 = gp.rotate_point(self.x2, self.y2, rotation, cx, cy)
self.cx, self.cy = new_cx - self.x1, new_cy - self.y1
- def to_primitives(self):
- yield gp.Arc(*astuple(self)[:7], width=self.aperture.equivalent_width, polarity_dark=self.polarity_dark)
+ def to_primitives(self, unit=None):
+ conv = self.converted(unit)
+ yield gp.Arc(*astuple(conv)[:7], width=self.aperture.equivalent_width(unit), polarity_dark=self.polarity_dark)
def to_statements(self, gs):
yield from gs.set_polarity(self.polarity_dark)
generated by cgit (git 2.34.1) at 2024-11-22 12:53:55 +0000