diff options
Diffstat (limited to 'gerberex')
| -rw-r--r-- | gerberex/rs274x.py | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gerberex/rs274x.py b/gerberex/rs274x.py index 42ae17d..3a3a712 100644 --- a/gerberex/rs274x.py +++ b/gerberex/rs274x.py @@ -53,6 +53,8 @@ class GerberFile(gerber.rs274x.GerberFile): self.main_statements.extend(stmts) if self.context.angle != 0: self.rotate(self.context.angle) + if self.context.is_negative: + self.nagate_polarity() self.context.notation = 'absolute' self.context.zeros = 'trailing' @@ -128,6 +130,11 @@ class GerberFile(gerber.rs274x.GerberFile): statement.x = last_rx statement.y = last_ry + def nagate_polarity(self): + for statement in self.main_statements: + if isinstance(statement, LPParamStmt): + statement.lp = 'dark' if statement.lp == 'clear' else 'clear' + def _generalize_aperture(self): RECTANGLE = 0 LANDSCAPE_OBROUND = 1 @@ -208,6 +215,9 @@ class GerberContext(FileSettings): 1, 0, 1, 1) + self.is_negative = False + self.is_first_coordinate = True + self.no_polarity = True self.in_single_quadrant_mode = False self.op = None self.interpolation = self.IP_LINEAR @@ -216,6 +226,7 @@ class GerberContext(FileSettings): self.y = 0. def normalize_statement(self, stmt): + additional_stmts = None if isinstance(stmt, INParamStmt): self.name = stmt.name elif isinstance(stmt, MIParamStmt): @@ -241,14 +252,24 @@ class GerberContext(FileSettings): elif isinstance(stmt, QuadrantModeStmt): self.in_single_quadrant_mode = stmt.mode == 'single-quadrant' stmt.mode = 'multi-quadrant' + elif isinstance(stmt, IPParamStmt): + self.is_negative = stmt.ip == 'negative' + elif isinstance(stmt, LPParamStmt): + self.no_polarity = False elif isinstance(stmt, CoordStmt): self._normalize_coordinate(stmt) + if self.is_first_coordinate: + self.is_first_coordinate = False + if self.no_polarity: + additional_stmts = [LPParamStmt('LP', 'dark'), stmt] if type(stmt).__name__ in self.ignored_stmt: return (self.TYPE_NONE, None) + elif additional_stmts is not None: + return (self.TYPE_MAIN, additional_stmts) else: return (self.TYPE_MAIN, [stmt]) - + def _update_matrix(self): if self.axis == 'xy': mx = -1 if self.mirror[0] else 1 |