diff options
Diffstat (limited to 'gerbonara/rs274x.py')
| -rw-r--r-- | gerbonara/rs274x.py | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/gerbonara/rs274x.py b/gerbonara/rs274x.py index cfada76..fd83c5b 100644 --- a/gerbonara/rs274x.py +++ b/gerbonara/rs274x.py @@ -21,6 +21,7 @@ import re import math +import copy import warnings from pathlib import Path import dataclasses @@ -623,6 +624,7 @@ class GerberParser: 'aperture_definition': fr"ADD(?P<number>\d+)(?P<shape>C|R|O|P|{NAME})(,(?P<modifiers>[^,%]*))?$", 'aperture_macro': fr"AM(?P<name>{NAME})\*(?P<macro>[^%]*)", 'siemens_garbage': r'^ICAS$', + 'step_repeat': fr'^SR(?P<coords>X(?P<X>[0-9]+)Y(?P<Y>[0-9]+)I(?P<I>{DECIMAL})J(?P<J>{DECIMAL}))?$', 'old_unit':r'(?P<mode>G7[01])', 'old_notation': r'(?P<mode>G9[01])', 'ignored': r"(?P<stmt>M01)", @@ -642,6 +644,8 @@ class GerberParser: self.aperture_map = {} self.aperture_macros = {} self.current_region = None + self.step_repeat_coords = None + self.step_repeat_objects = None self.eof_found = False self.multi_quadrant_mode = None # used only for syntax checking self.macros = {} @@ -784,7 +788,10 @@ class GerberParser: # in multi-quadrant mode this may return None if start and end point of the arc are the same. obj = self.graphics_state.interpolate(x, y, i, j, multi_quadrant=self.multi_quadrant_mode) if obj is not None: - self.target.objects.append(obj) + if self.step_repeat_objects: + self.step_repeat_objects.append(obj) + else: + self.target.objects.append(obj) else: obj = self.graphics_state.interpolate(x, y, i, j, aperture=False, multi_quadrant=self.multi_quadrant_mode) if obj is not None: @@ -795,14 +802,21 @@ class GerberParser: if self.current_region: # Start a new region for every outline. As gerber has no concept of fill rules or winding numbers, # it does not make a graphical difference, and it makes the implementation slightly easier. - self.target.objects.append(self.current_region) + if self.step_repeat_objects: + self.step_repeat_objects.append(self.current_region) + else: + self.target.objects.append(self.current_region) self.current_region = go.Region( polarity_dark=self.graphics_state.polarity_dark, unit=self.file_settings.unit) elif op == '3': if self.current_region is None: - self.target.objects.append(self.graphics_state.flash(x, y)) + obj = self.graphics_state.flash(x, y) + if self.step_repeat_objects: + self.step_repeat_objects.append(obj) + else: + self.target.objects.append(obj) else: raise SyntaxError('DO3 flash statement inside region') @@ -1064,6 +1078,30 @@ class GerberParser: if 'EAGLE' in self.file_attrs.get('.GenerationSoftware', []) or match['eagle_garbage']: self.generator_hints.append('eagle') + def _parse_step_repeat(self, match): + if match['coords']: + if self.step_repeat_coords: + raise SyntaxError('SR step-repeat called inside ongoing SR step-repeat') + + x, y = int(match['X']), int(match['Y']) + i, j = float(match['I']), float(match['J']) + if x < 1 or y < 1: + raise SyntaxError('SR step-repeat X and Y values must be at least 1') + + self.step_repeat_coords = [ + (i*nx, j*ny) + for nx in range(x) for ny in range(y)] # the order matters here, cf. the spec + self.step_repeat_objects = [] + + else: + for obj in self.step_repeat_objects: + for dx, dy in self.step_repeat_coords: + new_obj = copy.copy(obj) + new_obj.offset(dx, dy) + self.target.objects.append(new_obj) + self.step_repeat_coords = None + self.step_repeat_objects = None + def _parse_eof(self, match): self.eof_found = True |