diff options
Diffstat (limited to 'gerber')
| -rw-r--r-- | gerber/am_statements.py | 24 | ||||
| -rw-r--r-- | gerber/cam.py | 1 | ||||
| -rw-r--r-- | gerber/gerber_statements.py | 4 | ||||
| -rw-r--r-- | gerber/primitives.py | 2 | ||||
| -rw-r--r-- | gerber/render/rs274x_backend.py | 61 | ||||
| -rw-r--r-- | gerber/utils.py | 11 |
6 files changed, 89 insertions, 14 deletions
diff --git a/gerber/am_statements.py b/gerber/am_statements.py index 2bca6e6..05ebd9d 100644 --- a/gerber/am_statements.py +++ b/gerber/am_statements.py @@ -334,6 +334,19 @@ class AMOutlinePrimitive(AMPrimitive): ------ ValueError, TypeError """ + + @classmethod + def from_primitive(cls, primitive): + + start_point = (round(primitive.primitives[0].start[0], 6), round(primitive.primitives[0].start[1], 6)) + points = [] + for prim in primitive.primitives: + points.append((round(prim.end[0], 6), round(prim.end[1], 6))) + + rotation = 0.0 + + return cls(4, 'on', start_point, points, rotation) + @classmethod def from_gerber(cls, primitive): modifiers = primitive.strip(' *').split(",") @@ -376,17 +389,18 @@ class AMOutlinePrimitive(AMPrimitive): code=self.code, exposure="1" if self.exposure == "on" else "0", n_points=len(self.points), - start_point="%.4g,%.4g" % self.start_point, - points=",".join(["%.4g,%.4g" % point for point in self.points]), + start_point="%.6g,%.6g" % self.start_point, + points=",\n".join(["%.6g,%.6g" % point for point in self.points]), rotation=str(self.rotation) ) - return "{code},{exposure},{n_points},{start_point},{points},{rotation}*".format(**data) + # TODO I removed a closing asterix - not sure if this works for items with multiple statements + return "{code},{exposure},{n_points},{start_point},{points},\n{rotation}".format(**data) def to_primitive(self, units): lines = [] - prev_point = rotate_point(self.points[0], self.rotation) - for point in self.points[1:]: + prev_point = rotate_point(self.start_point, self.rotation) + for point in self.points: cur_point = rotate_point(point, self.rotation) lines.append(Line(prev_point, cur_point, Circle((0,0), 0))) diff --git a/gerber/cam.py b/gerber/cam.py index 08d80de..53f5c0d 100644 --- a/gerber/cam.py +++ b/gerber/cam.py @@ -255,6 +255,7 @@ class CamFile(object): filename : string <optional> If provided, save the rendered image to `filename` """ + ctx.set_bounds(self.bounds) ctx._paint_background() if ctx.invert: diff --git a/gerber/gerber_statements.py b/gerber/gerber_statements.py index bb190f4..dcdd90d 100644 --- a/gerber/gerber_statements.py +++ b/gerber/gerber_statements.py @@ -168,6 +168,10 @@ class FSParamStmt(ParamStmt): class MOParamStmt(ParamStmt): """ MO - Gerber Mode (measurement units) Statement. """ + + @classmethod + def from_units(cls, units): + return cls(None, 'inch') @classmethod def from_dict(cls, stmt_dict): diff --git a/gerber/primitives.py b/gerber/primitives.py index 21efb55..07a28db 100644 --- a/gerber/primitives.py +++ b/gerber/primitives.py @@ -779,7 +779,7 @@ class AMGroup(Primitive): if self._position:
dx = new_pos[0] - self._position[0]
- dy = new_pos[0] - self._position[0]
+ dy = new_pos[1] - self._position[1]
else:
dx = new_pos[0]
dy = new_pos[1]
diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 0094192..bdb77f4 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -1,12 +1,49 @@ from .render import GerberContext +from ..am_statements import * from ..gerber_statements import * -from ..primitives import AMGroup, Arc, Circle, Line, Rectangle +from ..primitives import AMGroup, Arc, Circle, Line, Outline, Rectangle +from copy import deepcopy + +class AMGroupContext(object): + '''A special renderer to generate aperature macros from an AMGroup''' + + def __init__(self): + self.statements = [] + + def render(self, amgroup, name): + + # Clone ourselves, then offset by the psotion so that + # our render doesn't have to consider offset. Just makes things simplder + nooffset_group = deepcopy(amgroup) + nooffset_group.position = (0, 0) + + # Now draw the shapes + for primitive in nooffset_group.primitives: + if isinstance(primitive, Outline): + self._render_outline(primitive) + + statement = AMParamStmt('AM', name, self._statements_to_string()) + return statement + + def _statements_to_string(self): + macro = '' + + for statement in self.statements: + macro += statement.to_gerber() + + return macro + + def _render_outline(self, outline): + self.statements.append(AMOutlinePrimitive.from_primitive(outline)) + + class Rs274xContext(GerberContext): def __init__(self, settings): GerberContext.__init__(self) + self.comments = [] self.header = [] self.body = [] self.end = [EofStmt()] @@ -27,8 +64,13 @@ class Rs274xContext(GerberContext): self._i_none = 0 self._j_none = 0 + self.settings = settings + + self._start_header(settings) self._define_dcodes() + def _start_header(self, settings): + self.header.append(MOParamStmt.from_units(settings.units)) def _define_dcodes(self): @@ -67,7 +109,7 @@ class Rs274xContext(GerberContext): @property def statements(self): - return self.header + self.body + self.end + return self.comments + self.header + self.body + self.end def set_bounds(self, bounds): pass @@ -93,6 +135,8 @@ class Rs274xContext(GerberContext): def _render_line(self, line, color): self._select_aperture(line.aperture) + + self._render_level_polarity(line) # Get the right function if self._func != CoordStmt.FUNC_LINEAR: @@ -125,6 +169,8 @@ class Rs274xContext(GerberContext): # Select the right aperture if not already selected self._select_aperture(arc.aperture) + self._render_level_polarity(arc) + # Find the right movement mode. Always set to be sure it is really right dir = arc.direction if dir == 'clockwise': @@ -243,7 +289,7 @@ class Rs274xContext(GerberContext): hash += str(len(primitive.primitives)) return hash - + def _get_amacro(self, amgroup, dcode = None): # Macros are a little special since we don't have a good way to compare them quickly # but in most cases, this should work @@ -261,8 +307,13 @@ class Rs274xContext(GerberContext): # Create the statements # TODO - statements = [] + amrenderer = AMGroupContext() + statement = amrenderer.render(amgroup, hash) + + self.header.append(statement) + aperdef = ADParamStmt.macro(dcode, hash) + self.header.append(aperdef) # Store the dcode and the original so we can check if it really is the same macro = (aperdef, amgroup) @@ -281,6 +332,8 @@ class Rs274xContext(GerberContext): aper = self._get_amacro(amgroup) self._render_flash(amgroup, aper) + + def _render_inverted_layer(self): pass diff --git a/gerber/utils.py b/gerber/utils.py index 16323d6..72bf2d1 100644 --- a/gerber/utils.py +++ b/gerber/utils.py @@ -284,10 +284,13 @@ def rotate_point(point, angle, center=(0.0, 0.0)): `point` rotated about `center` by `angle` degrees. """ angle = radians(angle) - xdelta, ydelta = tuple(map(sub, point, center)) - x = center[0] + (cos(angle) * xdelta) - (sin(angle) * ydelta) - y = center[1] + (sin(angle) * xdelta) - (cos(angle) * ydelta) - return (x, y) + + cos_angle = cos(angle) + sin_angle = sin(angle) + + return ( + cos_angle * (point[0] - center[0]) - sin_angle * (point[1] - center[1]) + center[0], + sin_angle * (point[0] - center[0]) + cos_angle * (point[1] - center[1]) + center[1]) def nearly_equal(point1, point2, ndigits = 6): |