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authorjaseg <git@jaseg.de>2024-07-18 16:39:58 +0200
committerjaseg <git@jaseg.de>2024-07-18 16:39:58 +0200
commit58d5784903c8381aa63d8c06bd9b251861b27d96 (patch)
treecc6cc2572deeda9d59f3981e3c157b9b8da97fa1 /gerbonara/rs274x.py
parent1ecb7be6f9ccabf9ae50af5ad20ce1cc79a01973 (diff)
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rs274x: Add support for SR step-repeat command
Diffstat (limited to 'gerbonara/rs274x.py')
-rw-r--r--gerbonara/rs274x.py44
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