diff options
Diffstat (limited to 'gerber/render/rs274x_backend.py')
| -rw-r--r-- | gerber/render/rs274x_backend.py | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 30048c4..c7af2ea 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -178,11 +178,11 @@ class Rs274xContext(GerberContext): if hasattr(primitive, 'comment'): self.body.append(CommentStmt(primitive.comment)) - def _render_line(self, line, color): + def _render_line(self, line, color, default_polarity='dark'): self._select_aperture(line.aperture) - self._render_level_polarity(line) + self._render_level_polarity(line, default_polarity) # Get the right function if self._func != CoordStmt.FUNC_LINEAR: @@ -206,7 +206,7 @@ class Rs274xContext(GerberContext): elif func: self.body.append(CoordStmt.mode(func)) - def _render_arc(self, arc, color): + def _render_arc(self, arc, color, default_polarity='dark'): # Optionally set the quadrant mode if it has changed: if arc.quadrant_mode != self._quadrant_mode: @@ -221,7 +221,7 @@ class Rs274xContext(GerberContext): # Select the right aperture if not already selected self._select_aperture(arc.aperture) - self._render_level_polarity(arc) + self._render_level_polarity(arc, default_polarity) # Find the right movement mode. Always set to be sure it is really right dir = arc.direction @@ -252,20 +252,23 @@ class Rs274xContext(GerberContext): for p in region.primitives: + # Make programmatically generated primitives within a region with + # unset level polarity inherit the region's level polarity if isinstance(p, Line): - self._render_line(p, color) + self._render_line(p, color, default_polarity=region.level_polarity) else: - self._render_arc(p, color) + self._render_arc(p, color, default_polarity=region.level_polarity) if self.explicit_region_move_end: self.body.append(CoordStmt.move(None, None)) self.body.append(RegionModeStmt.off()) - def _render_level_polarity(self, region): - if region.level_polarity != self._level_polarity: - self._level_polarity = region.level_polarity - self.body.append(LPParamStmt.from_region(region)) + def _render_level_polarity(self, obj, default='dark'): + obj_polarity = obj.level_polarity if obj.level_polarity is not None else default + if obj_polarity != self._level_polarity: + self._level_polarity = obj_polarity + self.body.append(LPParamStmt('LP', obj_polarity)) def _render_flash(self, primitive, aperture): |