Refactor rendering
This commit is contained in:
Hamilton Kibbe
parent
d90da4000f
commit
6d2db67e6d
8 changed files with 417 additions and 659 deletions
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@ -70,6 +70,9 @@ class CamFile(object):
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settings : FileSettings
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The current file configuration.
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primitives : iterable
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List of primitives in the file.
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filename : string
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Name of the file that this CamFile represents.
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@ -95,8 +98,8 @@ class CamFile(object):
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decimal digits)
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"""
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def __init__(self, statements=None, settings=None, filename=None,
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layer_name=None):
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def __init__(self, statements=None, settings=None, primitives=None,
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filename=None, layer_name=None):
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if settings is not None:
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self.notation = settings['notation']
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self.units = settings['units']
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@ -108,6 +111,7 @@ class CamFile(object):
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self.zero_suppression = 'trailing'
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self.format = (2, 5)
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self.statements = statements if statements is not None else []
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self.primitives = primitives
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self.filename = filename
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self.layer_name = layer_name
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@ -122,3 +126,20 @@ class CamFile(object):
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"""
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return FileSettings(self.notation, self.units, self.zero_suppression,
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self.format)
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def render(self, ctx, filename=None):
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""" Generate image of layer.
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Parameters
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----------
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ctx : :class:`GerberContext`
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GerberContext subclass used for rendering the image
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filename : string <optional>
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If provided, save the rendered image to `filename`
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"""
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ctx.set_bounds(self.bounds)
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for p in self.primitives:
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ctx.render(p)
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if filename is not None:
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ctx.dump(filename)
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@ -25,7 +25,7 @@ This module provides Excellon file classes and parsing utilities
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from .excellon_statements import *
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from .cam import CamFile, FileSettings
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from .primitives import Drill
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import math
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def read(filename):
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@ -74,30 +74,33 @@ class ExcellonFile(CamFile):
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"""
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def __init__(self, statements, tools, hits, settings, filename=None):
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super(ExcellonFile, self).__init__(statements, settings, filename)
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super(ExcellonFile, self).__init__(statements=statements,
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settings=settings,
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filename=filename)
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self.tools = tools
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self.hits = hits
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self.primitives = [Drill(position, tool.diameter)
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for tool, position in self.hits]
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@property
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def bounds(self):
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xmin = ymin = 100000000000
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xmax = ymax = -100000000000
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for tool, position in self.hits:
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radius = tool.diameter / 2.
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x = position[0]
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y = position[1]
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xmin = min(x - radius, xmin)
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xmax = max(x + radius, xmax)
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ymin = min(y - radius, ymin)
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ymax = max(y + radius, ymax)
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return ((xmin, xmax), (ymin, ymax))
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def report(self):
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""" Print drill report
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"""
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pass
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def render(self, ctx, filename=None):
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""" Generate image of file
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Parameters
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----------
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ctx : :class:`gerber.render.GerberContext`
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GerberContext subclass used for rendering the image
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filename : string <optional>
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If provided, the rendered image will be saved to `filename`
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"""
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for tool, pos in self.hits:
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ctx.drill(pos[0], pos[1], tool.diameter)
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if filename is not None:
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ctx.dump(filename)
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def write(self, filename):
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with open(filename, 'w') as f:
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@ -105,6 +108,7 @@ class ExcellonFile(CamFile):
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f.write(statement.to_excellon() + '\n')
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class ExcellonParser(object):
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""" Excellon File Parser
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@ -12,7 +12,8 @@ from .utils import parse_gerber_value, write_gerber_value, decimal_string
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__all__ = ['FSParamStmt', 'MOParamStmt', 'IPParamStmt', 'OFParamStmt',
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'LPParamStmt', 'ADParamStmt', 'AMParamStmt', 'INParamStmt',
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'LNParamStmt', 'CoordStmt', 'ApertureStmt', 'CommentStmt',
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'EofStmt', 'QuadrantModeStmt', 'RegionModeStmt', 'UnknownStmt']
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'EofStmt', 'QuadrantModeStmt', 'RegionModeStmt', 'UnknownStmt',
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'ParamStmt']
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class Statement(object):
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@ -24,21 +24,22 @@ bottom_coppper_name = ['art02', 'bottom', 'bot', 'GBL', 'layer2', 'soldsold', ]
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internal_layer_ext = ['in', 'gt1', 'gt2', 'gt3', 'gt4', 'gt5', 'gt6', 'g1',
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'g2', 'g3', 'g4', 'g5', 'g6', ]
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internal_layer_name = ['art', 'internal']
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power_plane_name = ['pgp', 'pwr', ]
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ground_plane_name = ['gp1', 'gp2', 'gp3', 'gp4', 'gt5', 'gp6', 'gnd',
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'ground', ]
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top_silk_ext = ['gto', 'ts', 'skt', ]
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top_silk_name = ['sst01', 'topsilk, 'silk', 'slk', 'sst', ]
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top_silk_ext = ['gto', 'sst', 'plc', 'ts', 'skt', ]
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top_silk_name = ['sst01', 'topsilk', 'silk', 'slk', 'sst', ]
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bottom_silk_ext = ['gbo, 'bs', 'skb', ]
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bottom_silk_ext = ['gbo', 'ssb', 'pls', 'bs', 'skb', ]
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bottom_silk_name = ['sst', 'bsilk', 'ssb', 'botsilk', ]
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top_mask_ext = ['gts', 'tmk', 'smt', 'tr', ]
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top_mask_ext = ['gts', 'stc', 'tmk', 'smt', 'tr', ]
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top_mask_name = ['sm01', 'cmask', 'tmask', 'mask1', 'maskcom', 'topmask',
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'mst', ]
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bottom_mask_ext = ['gbs', bmk', 'smb', 'br', ]
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bottom_mask_ext = ['gbs', 'sts', 'bmk', 'smb', 'br', ]
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bottom_mask_name = ['sm', 'bmask', 'mask2', 'masksold', 'botmask', 'msb', ]
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top_paste_ext = ['gtp', 'tm']
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@ -49,3 +50,5 @@ bottom_paste_name = ['sp02', 'botpaste', 'psb']
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board_outline_ext = ['gko']
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board_outline_name = ['BDR', 'border', 'out', ]
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@ -19,11 +19,15 @@ from operator import sub
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class Primitive(object):
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def __init__(self, level_polarity='dark'):
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self.level_polarity = level_polarity
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def bounding_box(self):
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""" Calculate bounding box
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will be helpful for sweep & prune during DRC clearance checks.
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Return ((min x, max x), (min y, max y))
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"""
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pass
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@ -32,16 +36,19 @@ class Primitive(object):
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class Line(Primitive):
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"""
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"""
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def __init__(self, start, end, width):
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def __init__(self, start, end, width, level_polarity='dark'):
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super(Line, self).__init__(level_polarity)
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self.start = start
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self.end = end
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self.width = width
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@property
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def angle(self):
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dx, dy = tuple(map(sub, end, start))
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angle = degrees(math.tan(dy/dx))
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delta_x, delta_y = tuple(map(sub, end, start))
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angle = degrees(math.tan(delta_y/delta_x))
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return angle
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@property
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def bounding_box(self):
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width_2 = self.width / 2.
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min_x = min(self.start[0], self.end[0]) - width_2
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@ -54,7 +61,8 @@ class Line(Primitive):
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class Arc(Primitive):
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"""
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"""
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def __init__(self, start, end, center, direction, width):
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def __init__(self, start, end, center, direction, width, level_polarity='dark'):
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super(Arc, self).__init__(level_polarity)
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self.start = start
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self.end = end
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self.center = center
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@ -71,17 +79,23 @@ class Arc(Primitive):
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dy, dx = map(sub, self.end, self.center)
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return math.atan2(dy, dx)
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@property
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def bounding_box(self):
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pass
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class Circle(Primitive):
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"""
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"""
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def __init__(self, position, diameter):
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def __init__(self, position, diameter, level_polarity='dark'):
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super(Circle, self).__init__(level_polarity)
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self.position = position
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self.diameter = diameter
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self.radius = diameter / 2.
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@property
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def radius(self):
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return self.diameter / 2.
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@property
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def bounding_box(self):
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min_x = self.position[0] - self.radius
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max_x = self.position[0] + self.radius
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@ -89,11 +103,16 @@ class Circle(Primitive):
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max_y = self.position[1] + self.radius
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return ((min_x, max_x), (min_y, max_y))
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@property
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def stroke_width(self):
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return self.diameter
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class Rectangle(Primitive):
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"""
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"""
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def __init__(self, position, width, height):
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def __init__(self, position, width, height, level_polarity='dark'):
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super(Rectangle, self).__init__(level_polarity)
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self.position = position
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self.width = width
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self.height = height
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@ -108,6 +127,7 @@ class Rectangle(Primitive):
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return (self.position[0] + (self.width / 2.),
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self.position[1] + (self.height / 2.))
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@property
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def bounding_box(self):
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min_x = self.lower_left[0]
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max_x = self.upper_right[0]
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@ -115,11 +135,16 @@ class Rectangle(Primitive):
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max_y = self.upper_right[1]
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return ((min_x, max_x), (min_y, max_y))
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@property
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def stroke_width(self):
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return max((self.width, self.height))
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class Obround(Primitive):
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"""
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"""
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def __init__(self, position, width, height)
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def __init__(self, position, width, height, level_polarity='dark'):
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super(Obround, self).__init__(level_polarity)
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self.position = position
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self.width = width
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self.height = height
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@ -138,6 +163,7 @@ class Obround(Primitive):
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return (self.position[0] + (self.width / 2.),
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self.position[1] + (self.height / 2.))
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@property
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def bounding_box(self):
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min_x = self.lower_left[0]
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max_x = self.upper_right[0]
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@ -149,11 +175,13 @@ class Obround(Primitive):
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class Polygon(Primitive):
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"""
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"""
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def __init__(self, position, sides, radius):
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def __init__(self, position, sides, radius, level_polarity='dark'):
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super(Polygon, self).__init__(level_polarity)
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self.position = position
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self.sides = sides
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self.radius = radius
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@property
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def bounding_box(self):
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min_x = self.position[0] - self.radius
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max_x = self.position[0] + self.radius
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@ -165,9 +193,11 @@ class Polygon(Primitive):
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class Region(Primitive):
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"""
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"""
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def __init__(self, points):
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def __init__(self, points, level_polarity='dark'):
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super(Region, self).__init__(level_polarity)
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self.points = points
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@property
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def bounding_box(self):
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x_list, y_list = zip(*self.points)
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min_x = min(x_list)
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@ -181,10 +211,15 @@ class Drill(Primitive):
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"""
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"""
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def __init__(self, position, diameter):
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super(Drill, self).__init__('dark')
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self.position = position
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self.diameter = diameter
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self.radius = diameter / 2.
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@property
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def radius(self):
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return self.diameter / 2.
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@property
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def bounding_box(self):
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min_x = self.position[0] - self.radius
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max_x = self.position[0] + self.radius
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@ -28,6 +28,7 @@ from ..gerber_statements import (CommentStmt, UnknownStmt, EofStmt, ParamStmt,
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QuadrantModeStmt,
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)
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from ..primitives import *
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class GerberContext(object):
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""" Gerber rendering context base class
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@ -39,40 +40,8 @@ class GerberContext(object):
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Attributes
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----------
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settings : FileSettings (dict-like)
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Gerber file settings
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x : float
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X-coordinate of the "photoplotter" head.
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y : float
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Y-coordinate of the "photoplotter" head
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aperture : int
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The aperture that is currently in use
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interpolation : str
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Current interpolation mode. may be 'linear' or 'arc'
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direction : string
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Current arc direction. May be either 'clockwise' or 'counterclockwise'
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image_polarity : string
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Current image polarity setting. May be 'positive' or 'negative'
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level_polarity : string
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Level polarity. May be 'dark' or 'clear'. Dark polarity indicates the
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existance of copper/silkscreen/etc. in the exposed area, whereas clear
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polarity indicates material should be removed from the exposed area.
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region_mode : string
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Region mode. May be 'on' or 'off'. When region mode is set to 'on' the
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following "contours" define the outline of a region. When region mode
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is subsequently turned 'off', the defined area is filled.
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quadrant_mode : string
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Quadrant mode. May be 'single-quadrant' or 'multi-quadrant'. Defines
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how arcs are specified.
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units : string
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Measurement units
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color : tuple (<float>, <float>, <float>)
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Color used for rendering as a tuple of normalized (red, green, blue) values.
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@ -87,73 +56,14 @@ class GerberContext(object):
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alpha : float
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Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.)
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"""
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def __init__(self):
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self.settings = {}
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self.x = 0
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self.y = 0
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self.aperture = 0
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self.interpolation = 'linear'
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self.direction = 'clockwise'
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self.image_polarity = 'positive'
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self.level_polarity = 'dark'
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self.region_mode = 'off'
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self.quadrant_mode = 'multi-quadrant'
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self.step_and_repeat = (1, 1, 0, 0)
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def __init__(self, units='inch'):
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self.units = units
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self.color = (0.7215, 0.451, 0.200)
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self.drill_color = (0.25, 0.25, 0.25)
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self.background_color = (0.0, 0.0, 0.0)
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self.alpha = 1.0
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def set_format(self, settings):
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""" Set source file format.
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Parameters
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----------
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settings : FileSettings instance or dict-like
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Gerber file settings used in source file.
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"""
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self.settings = settings
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def set_coord_format(self, zero_suppression, decimal_format, notation):
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""" Set coordinate format used in source gerber file
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Parameters
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----------
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zero_suppression : string
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Zero suppression mode. may be 'leading' or 'trailling'
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decimal_format : tuple (<int>, <int>)
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Decimal precision format specified as (integer digits, decimal digits)
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notation : string
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Notation mode. 'absolute' or 'incremental'
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"""
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if zero_suppression not in ('leading', 'trailling'):
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raise ValueError('Zero suppression must be "leading" or "trailing"')
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self.settings['zero_suppression'] = zero_suppression
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self.settings['format'] = decimal_format
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self.settings['notation'] = notation
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def set_coord_notation(self, notation):
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""" Set context notation mode
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Parameters
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----------
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notation : string
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Notation mode. may be 'absolute' or 'incremental'
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Raises
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------
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ValueError
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If `notation` is not either "absolute" or "incremental"
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"""
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if notation not in ('absolute', 'incremental'):
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raise ValueError('Notation may be "absolute" or "incremental"')
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self.settings['notation'] = notation
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def set_coord_unit(self, unit):
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def set_units(self, units):
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""" Set context measurement units
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Parameters
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@ -166,70 +76,9 @@ class GerberContext(object):
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ValueError
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If `unit` is not 'inch' or 'metric'
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"""
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if unit not in ('inch', 'metric'):
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raise ValueError('Unit may be "inch" or "metric"')
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self.settings['units'] = unit
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||||
|
||||
def set_image_polarity(self, polarity):
|
||||
""" Set context image polarity
|
||||
|
||||
Parameters
|
||||
----------
|
||||
polarity : string
|
||||
Image polarity. May be "positive" or "negative"
|
||||
|
||||
Raises
|
||||
------
|
||||
ValueError
|
||||
If polarity is not 'positive' or 'negative'
|
||||
"""
|
||||
if polarity not in ('positive', 'negative'):
|
||||
raise ValueError('Polarity may be "positive" or "negative"')
|
||||
self.image_polarity = polarity
|
||||
|
||||
def set_level_polarity(self, polarity):
|
||||
""" Set context level polarity
|
||||
|
||||
Parameters
|
||||
----------
|
||||
polarity : string
|
||||
Level polarity. May be "dark" or "clear"
|
||||
|
||||
Raises
|
||||
------
|
||||
ValueError
|
||||
If polarity is not 'dark' or 'clear'
|
||||
"""
|
||||
if polarity not in ('dark', 'clear'):
|
||||
raise ValueError('Polarity may be "dark" or "clear"')
|
||||
self.level_polarity = polarity
|
||||
|
||||
def set_interpolation(self, interpolation):
|
||||
""" Set arc interpolation mode
|
||||
|
||||
Parameters
|
||||
----------
|
||||
interpolation : string
|
||||
Interpolation mode. May be 'linear' or 'arc'
|
||||
|
||||
Raises
|
||||
------
|
||||
ValueError
|
||||
If `interpolation` is not 'linear' or 'arc'
|
||||
"""
|
||||
if interpolation not in ('linear', 'arc'):
|
||||
raise ValueError('Interpolation may be "linear" or "arc"')
|
||||
self.interpolation = interpolation
|
||||
|
||||
def set_aperture(self, d):
|
||||
""" Set active aperture
|
||||
|
||||
Parameters
|
||||
----------
|
||||
aperture : int
|
||||
Aperture number to activate.
|
||||
"""
|
||||
self.aperture = d
|
||||
if units not in ('inch', 'metric'):
|
||||
raise ValueError('Units may be "inch" or "metric"')
|
||||
self.units = units
|
||||
|
||||
def set_color(self, color):
|
||||
""" Set rendering color.
|
||||
|
|
@ -277,238 +126,49 @@ class GerberContext(object):
|
|||
"""
|
||||
self.alpha = alpha
|
||||
|
||||
def resolve(self, x, y):
|
||||
""" Resolve missing x or y coordinates in a coordinate command.
|
||||
|
||||
Replace missing x or y values with the current x or y position. This
|
||||
is the default method for handling coordinate pairs pulled from gerber
|
||||
file statments, as a move/line/arc involving a change in only one axis
|
||||
will drop the redundant axis coordinate to reduce file size.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X-coordinate. If `None`, will be replaced with current
|
||||
"photoplotter" head x-coordinate
|
||||
|
||||
y : float
|
||||
Y-coordinate. If `None`, will be replaced with current
|
||||
"photoplotter" head y-coordinate
|
||||
|
||||
Returns
|
||||
-------
|
||||
coordinates : tuple (<float>, <float>)
|
||||
Coordinates in absolute notation
|
||||
"""
|
||||
x = x if x is not None else self.x
|
||||
y = y if y is not None else self.y
|
||||
return x, y
|
||||
|
||||
def define_aperture(self, d, shape, modifiers):
|
||||
pass
|
||||
|
||||
def move(self, x, y, resolve=True):
|
||||
""" Lights-off move.
|
||||
|
||||
Move the "photoplotter" head to (x, y) without drawing a line. If x or
|
||||
y is `None`, remain at the same point in that axis.
|
||||
|
||||
Parameters
|
||||
-----------
|
||||
x : float
|
||||
X-coordinate to move to. If x is `None`, do not move in the X
|
||||
direction
|
||||
|
||||
y : float
|
||||
Y-coordinate to move to. if y is `None`, do not move in the Y
|
||||
direction
|
||||
|
||||
resolve : bool
|
||||
If resolve is `True` the context will replace missing x or y
|
||||
coordinates with the current plotter head position. This is the
|
||||
default behavior.
|
||||
"""
|
||||
if resolve:
|
||||
self.x, self.y = self.resolve(x, y)
|
||||
def render(self, primitive):
|
||||
color = (self.color if primitive.level_polarity == 'dark'
|
||||
else self.background_color)
|
||||
if isinstance(primitive, Line):
|
||||
self._render_line(primitive, color)
|
||||
elif isinstance(primitive, Arc):
|
||||
self._render_arc(primitive, color)
|
||||
elif isinstance(primitive, Region):
|
||||
self._render_region(primitive, color)
|
||||
elif isinstance(primitive, Circle):
|
||||
self._render_circle(primitive, color)
|
||||
elif isinstance(primitive, Rectangle):
|
||||
self._render_rectangle(primitive, color)
|
||||
elif isinstance(primitive, Obround):
|
||||
self._render_obround(primitive, color)
|
||||
elif isinstance(primitive, Polygon):
|
||||
self._render_polygon(Polygon, color)
|
||||
elif isinstance(primitive, Drill):
|
||||
self._render_drill(primitive, self.drill_color)
|
||||
else:
|
||||
self.x, self.y = x, y
|
||||
|
||||
def stroke(self, x, y, i, j):
|
||||
""" Lights-on move. (draws a line or arc)
|
||||
|
||||
The stroke method is called when a Lights-on move statement is
|
||||
encountered. This will call the `line` or `arc` method as necessary
|
||||
based on the move statement's parameters. The `stroke` method should
|
||||
be overridden in `GerberContext` subclasses.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X coordinate of target position
|
||||
|
||||
y : float
|
||||
Y coordinate of target position
|
||||
|
||||
i : float
|
||||
Offset in X-direction from current position of arc center.
|
||||
|
||||
j : float
|
||||
Offset in Y-direction from current position of arc center.
|
||||
"""
|
||||
pass
|
||||
|
||||
def line(self, x, y):
|
||||
""" Draw a line
|
||||
|
||||
Draws a line from the current position to (x, y) using the currently
|
||||
selected aperture. The `line` method should be overridden in
|
||||
`GerberContext` subclasses.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X coordinate of target position
|
||||
|
||||
y : float
|
||||
Y coordinate of target position
|
||||
"""
|
||||
pass
|
||||
|
||||
def arc(self, x, y, i, j):
|
||||
""" Draw an arc
|
||||
|
||||
Draw an arc from the current position to (x, y) using the currently
|
||||
selected aperture. `i` and `j` specify the offset from the starting
|
||||
position to the center of the arc.The `arc` method should be
|
||||
overridden in `GerberContext` subclasses.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X coordinate of target position
|
||||
|
||||
y : float
|
||||
Y coordinate of target position
|
||||
|
||||
i : float
|
||||
Offset in X-direction from current position of arc center.
|
||||
|
||||
j : float
|
||||
Offset in Y-direction from current position of arc center.
|
||||
"""
|
||||
pass
|
||||
|
||||
def flash(self, x, y):
|
||||
""" Flash the current aperture
|
||||
|
||||
Draw a filled shape defined by the currently selected aperture.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X coordinate of the position at which to flash
|
||||
|
||||
y : float
|
||||
Y coordinate of the position at which to flash
|
||||
"""
|
||||
pass
|
||||
|
||||
def drill(self, x, y, diameter):
|
||||
""" Draw a drill hit
|
||||
|
||||
Draw a filled circle representing a drill hit at the specified
|
||||
position and with the specified diameter.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
x : float
|
||||
X coordinate of the drill hit
|
||||
|
||||
y : float
|
||||
Y coordinate of the drill hit
|
||||
|
||||
diameter : float
|
||||
Finished hole diameter to draw.
|
||||
"""
|
||||
pass
|
||||
|
||||
def region_contour(self, x, y):
|
||||
pass
|
||||
|
||||
def fill_region(self):
|
||||
pass
|
||||
|
||||
def evaluate(self, stmt):
|
||||
""" Evaluate Gerber statement and update image accordingly.
|
||||
|
||||
This method is called once for each statement in a Gerber/Excellon
|
||||
file when the file's `render` method is called. The evaluate method
|
||||
should forward the statement on to the relevant handling method based
|
||||
on the statement type.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
statement : Statement
|
||||
Gerber/Excellon statement to evaluate.
|
||||
|
||||
"""
|
||||
if isinstance(stmt, (CommentStmt, UnknownStmt, EofStmt)):
|
||||
return
|
||||
|
||||
elif isinstance(stmt, ParamStmt):
|
||||
self._evaluate_param(stmt)
|
||||
def _render_line(self, primitive, color):
|
||||
pass
|
||||
|
||||
elif isinstance(stmt, CoordStmt):
|
||||
self._evaluate_coord(stmt)
|
||||
def _render_arc(self, primitive, color):
|
||||
pass
|
||||
|
||||
elif isinstance(stmt, ApertureStmt):
|
||||
self._evaluate_aperture(stmt)
|
||||
def _render_region(self, primitive, color):
|
||||
pass
|
||||
|
||||
elif isinstance(stmt, (RegionModeStmt, QuadrantModeStmt)):
|
||||
self._evaluate_mode(stmt)
|
||||
def _render_circle(self, primitive, color):
|
||||
pass
|
||||
|
||||
else:
|
||||
raise Exception("Invalid statement to evaluate")
|
||||
def _render_rectangle(self, primitive, color):
|
||||
pass
|
||||
|
||||
def _evaluate_mode(self, stmt):
|
||||
if stmt.type == 'RegionMode':
|
||||
if self.region_mode == 'on' and stmt.mode == 'off':
|
||||
self.fill_region()
|
||||
self.region_mode = stmt.mode
|
||||
elif stmt.type == 'QuadrantMode':
|
||||
self.quadrant_mode = stmt.mode
|
||||
def _render_obround(self, primitive, color):
|
||||
pass
|
||||
|
||||
def _evaluate_param(self, stmt):
|
||||
if stmt.param == "FS":
|
||||
self.set_coord_format(stmt.zero_suppression, stmt.format,
|
||||
stmt.notation)
|
||||
self.set_coord_notation(stmt.notation)
|
||||
elif stmt.param == "MO":
|
||||
self.set_coord_unit(stmt.mode)
|
||||
elif stmt.param == "IP":
|
||||
self.set_image_polarity(stmt.ip)
|
||||
elif stmt.param == "LP":
|
||||
self.set_level_polarity(stmt.lp)
|
||||
elif stmt.param == "AD":
|
||||
self.define_aperture(stmt.d, stmt.shape, stmt.modifiers)
|
||||
def _render_polygon(self, primitive, color):
|
||||
pass
|
||||
|
||||
def _evaluate_coord(self, stmt):
|
||||
if stmt.function in ("G01", "G1"):
|
||||
self.set_interpolation('linear')
|
||||
elif stmt.function in ('G02', 'G2', 'G03', 'G3'):
|
||||
self.set_interpolation('arc')
|
||||
self.direction = ('clockwise' if stmt.function in ('G02', 'G2')
|
||||
else 'counterclockwise')
|
||||
if stmt.op == "D01":
|
||||
if self.region_mode == 'on':
|
||||
self.region_contour(stmt.x, stmt.y)
|
||||
else:
|
||||
self.stroke(stmt.x, stmt.y, stmt.i, stmt.j)
|
||||
elif stmt.op == "D02":
|
||||
self.move(stmt.x, stmt.y)
|
||||
elif stmt.op == "D03":
|
||||
self.flash(stmt.x, stmt.y)
|
||||
|
||||
def _evaluate_aperture(self, stmt):
|
||||
self.set_aperture(stmt.d)
|
||||
def _render_drill(self, primitive, color):
|
||||
pass
|
||||
|
||||
|
|
|
|||
|
|
@ -17,214 +17,139 @@
|
|||
# limitations under the License.
|
||||
|
||||
from .render import GerberContext
|
||||
from .apertures import Circle, Rect, Obround, Polygon
|
||||
from operator import mul
|
||||
import svgwrite
|
||||
|
||||
SCALE = 300
|
||||
|
||||
|
||||
def convert_color(color):
|
||||
def svg_color(color):
|
||||
color = tuple([int(ch * 255) for ch in color])
|
||||
return 'rgb(%d, %d, %d)' % color
|
||||
|
||||
class SvgCircle(Circle):
|
||||
def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
aline = ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
|
||||
end=(x * SCALE, -y * SCALE),
|
||||
stroke=color,
|
||||
stroke_width=SCALE * self.diameter,
|
||||
stroke_linecap="round")
|
||||
aline.stroke(opacity=alpha)
|
||||
return aline
|
||||
|
||||
def arc(self, ctx, x, y, i, j, direction, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
pass
|
||||
|
||||
def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
circle = ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
|
||||
r = SCALE * (self.diameter / 2.0),
|
||||
fill=color)
|
||||
circle.fill(opacity=alpha)
|
||||
return [circle, ]
|
||||
|
||||
|
||||
class SvgRect(Rect):
|
||||
def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
aline = ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
|
||||
end=(x * SCALE, -y * SCALE),
|
||||
stroke=color, stroke_width=2,
|
||||
stroke_linecap="butt")
|
||||
aline.stroke(opacity=alpha)
|
||||
return aline
|
||||
|
||||
def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
xsize, ysize = self.size
|
||||
rectangle = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2)),
|
||||
-SCALE * (y + (ysize / 2))),
|
||||
size=(SCALE * xsize, SCALE * ysize),
|
||||
fill=color)
|
||||
rectangle.fill(opacity=alpha)
|
||||
return [rectangle, ]
|
||||
|
||||
|
||||
class SvgObround(Obround):
|
||||
def line(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
pass
|
||||
|
||||
def flash(self, ctx, x, y, color='rgb(184, 115, 51)', alpha=1.0):
|
||||
xsize, ysize = self.size
|
||||
|
||||
# horizontal obround
|
||||
if xsize == ysize:
|
||||
circle = ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
|
||||
r = SCALE * (x / 2.0),
|
||||
fill=color)
|
||||
circle.fill(opacity=alpha)
|
||||
return [circle, ]
|
||||
if xsize > ysize:
|
||||
rectx = xsize - ysize
|
||||
recty = ysize
|
||||
lcircle = ctx.dwg.circle(center=((x - (rectx / 2.0)) * SCALE,
|
||||
-y * SCALE),
|
||||
r = SCALE * (ysize / 2.0),
|
||||
fill=color)
|
||||
|
||||
rcircle = ctx.dwg.circle(center=((x + (rectx / 2.0)) * SCALE,
|
||||
-y * SCALE),
|
||||
r = SCALE * (ysize / 2.0),
|
||||
fill=color)
|
||||
|
||||
rect = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2.)),
|
||||
-SCALE * (y + (ysize / 2.))),
|
||||
size=(SCALE * xsize, SCALE * ysize),
|
||||
fill=color)
|
||||
lcircle.fill(opacity=alpha)
|
||||
rcircle.fill(opacity=alpha)
|
||||
rect.fill(opacity=alpha)
|
||||
return [lcircle, rcircle, rect, ]
|
||||
|
||||
# Vertical obround
|
||||
else:
|
||||
rectx = xsize
|
||||
recty = ysize - xsize
|
||||
lcircle = ctx.dwg.circle(center=(x * SCALE,
|
||||
(y - (recty / 2.)) * -SCALE),
|
||||
r = SCALE * (xsize / 2.),
|
||||
fill=color)
|
||||
|
||||
ucircle = ctx.dwg.circle(center=(x * SCALE,
|
||||
(y + (recty / 2.)) * -SCALE),
|
||||
r = SCALE * (xsize / 2.),
|
||||
fill=color)
|
||||
|
||||
rect = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2.)),
|
||||
-SCALE * (y + (ysize / 2.))),
|
||||
size=(SCALE * xsize, SCALE * ysize),
|
||||
fill=color)
|
||||
lcircle.fill(opacity=alpha)
|
||||
ucircle.fill(opacity=alpha)
|
||||
rect.fill(opacity=alpha)
|
||||
return [lcircle, ucircle, rect, ]
|
||||
|
||||
|
||||
class GerberSvgContext(GerberContext):
|
||||
def __init__(self):
|
||||
GerberContext.__init__(self)
|
||||
|
||||
self.apertures = {}
|
||||
self.scale = (SCALE, -SCALE)
|
||||
self.dwg = svgwrite.Drawing()
|
||||
self.dwg.transform = 'scale 1 -1'
|
||||
self.background = False
|
||||
self.region_path = None
|
||||
|
||||
def set_bounds(self, bounds):
|
||||
xbounds, ybounds = bounds
|
||||
size = (SCALE * (xbounds[1] - xbounds[0]), SCALE * (ybounds[1] - ybounds[0]))
|
||||
if not self.background:
|
||||
self.dwg = svgwrite.Drawing(viewBox='%f, %f, %f, %f' % (SCALE*xbounds[0], -SCALE*ybounds[1],size[0], size[1]))
|
||||
self.dwg.add(self.dwg.rect(insert=(SCALE * xbounds[0],
|
||||
-SCALE * ybounds[1]),
|
||||
size=size, fill=convert_color(self.background_color)))
|
||||
self.background = True
|
||||
|
||||
def define_aperture(self, d, shape, modifiers):
|
||||
aperture = None
|
||||
if shape == 'C':
|
||||
aperture = SvgCircle(diameter=float(modifiers[0][0]))
|
||||
elif shape == 'R':
|
||||
aperture = SvgRect(size=modifiers[0][0:2])
|
||||
elif shape == 'O':
|
||||
aperture = SvgObround(size=modifiers[0][0:2])
|
||||
self.apertures[d] = aperture
|
||||
|
||||
def stroke(self, x, y, i, j):
|
||||
super(GerberSvgContext, self).stroke(x, y, i, j)
|
||||
|
||||
if self.interpolation == 'linear':
|
||||
self.line(x, y)
|
||||
elif self.interpolation == 'arc':
|
||||
self.arc(x, y, i, j)
|
||||
|
||||
def line(self, x, y):
|
||||
super(GerberSvgContext, self).line(x, y)
|
||||
x, y = self.resolve(x, y)
|
||||
ap = self.apertures.get(self.aperture, None)
|
||||
if ap is None:
|
||||
return
|
||||
color = (convert_color(self.color) if self.level_polarity == 'dark'
|
||||
else convert_color(self.background_color))
|
||||
alpha = self.alpha if self.level_polarity == 'dark' else 1.0
|
||||
self.dwg.add(ap.line(self, x, y, color, alpha))
|
||||
self.move(x, y, resolve=False)
|
||||
|
||||
def arc(self, x, y, i, j):
|
||||
super(GerberSvgContext, self).arc(x, y, i, j)
|
||||
x, y = self.resolve(x, y)
|
||||
ap = self.apertures.get(self.aperture, None)
|
||||
if ap is None:
|
||||
return
|
||||
#self.dwg.add(ap.arc(self, x, y, i, j, self.direction,
|
||||
# convert_color(self.color), self.alpha))
|
||||
self.move(x, y, resolve=False)
|
||||
|
||||
def flash(self, x, y):
|
||||
super(GerberSvgContext, self).flash(x, y)
|
||||
x, y = self.resolve(x, y)
|
||||
ap = self.apertures.get(self.aperture, None)
|
||||
if ap is None:
|
||||
return
|
||||
|
||||
color = (convert_color(self.color) if self.level_polarity == 'dark'
|
||||
else convert_color(self.background_color))
|
||||
alpha = self.alpha if self.level_polarity == 'dark' else 1.0
|
||||
for shape in ap.flash(self, x, y, color, alpha):
|
||||
self.dwg.add(shape)
|
||||
self.move(x, y, resolve=False)
|
||||
|
||||
def drill(self, x, y, diameter):
|
||||
hit = self.dwg.circle(center=(x*SCALE, -y*SCALE),
|
||||
r=SCALE*(diameter/2.0),
|
||||
fill=convert_color(self.drill_color))
|
||||
#hit.fill(opacity=self.alpha)
|
||||
self.dwg.add(hit)
|
||||
|
||||
def region_contour(self, x, y):
|
||||
super(GerberSvgContext, self).region_contour(x, y)
|
||||
x, y = self.resolve(x, y)
|
||||
color = (convert_color(self.color) if self.level_polarity == 'dark'
|
||||
else convert_color(self.background_color))
|
||||
alpha = self.alpha if self.level_polarity == 'dark' else 1.0
|
||||
if self.region_path is None:
|
||||
self.region_path = self.dwg.path(d = 'M %f, %f' %
|
||||
(self.x*SCALE, -self.y*SCALE),
|
||||
fill = color, stroke = 'none')
|
||||
self.region_path.fill(opacity=alpha)
|
||||
self.region_path.push('L %f, %f' % (x*SCALE, -y*SCALE))
|
||||
self.move(x, y, resolve=False)
|
||||
|
||||
def fill_region(self):
|
||||
self.dwg.add(self.region_path)
|
||||
self.region_path = None
|
||||
|
||||
def dump(self, filename):
|
||||
self.dwg.saveas(filename)
|
||||
|
||||
def set_bounds(self, bounds):
|
||||
xbounds, ybounds = bounds
|
||||
size = (SCALE * (xbounds[1] - xbounds[0]),
|
||||
SCALE * (ybounds[1] - ybounds[0]))
|
||||
if not self.background:
|
||||
vbox = '%f, %f, %f, %f' % (SCALE * xbounds[0], -SCALE * ybounds[1],
|
||||
size[0], size[1])
|
||||
self.dwg = svgwrite.Drawing(viewBox=vbox)
|
||||
rect = self.dwg.rect(insert=(SCALE * xbounds[0],
|
||||
-SCALE * ybounds[1]),
|
||||
size=size,
|
||||
fill=svg_color(self.background_color))
|
||||
self.dwg.add(rect)
|
||||
self.background = True
|
||||
|
||||
def _render_line(self, line, color):
|
||||
start = map(mul, line.start, self.scale)
|
||||
end = map(mul, line.end, self.scale)
|
||||
aline = self.dwg.line(start=start, end=end,
|
||||
stroke=svg_color(color),
|
||||
stroke_width=SCALE * line.width,
|
||||
stroke_linecap='round')
|
||||
aline.stroke(opacity=self.alpha)
|
||||
self.dwg.add(aline)
|
||||
|
||||
def _render_region(self, region, color):
|
||||
points = [tuple(map(mul, point, self.scale)) for point in region.points]
|
||||
region_path = self.dwg.path(d='M %f, %f' % points[0],
|
||||
fill=svg_color(color),
|
||||
stroke='none')
|
||||
region_path.fill(opacity=self.alpha)
|
||||
for point in points[1:]:
|
||||
region_path.push('L %f, %f' % point)
|
||||
self.dwg.add(region_path)
|
||||
|
||||
def _render_circle(self, circle, color):
|
||||
center = map(mul, circle.position, self.scale)
|
||||
acircle = self.dwg.circle(center=center,
|
||||
r = SCALE * circle.radius,
|
||||
fill=svg_color(color))
|
||||
acircle.fill(opacity=self.alpha)
|
||||
self.dwg.add(acircle)
|
||||
|
||||
def _render_rectangle(self, rectangle, color):
|
||||
center = map(mul, rectangle.position, self.scale)
|
||||
size = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale)))
|
||||
insert = center[0] - size[0] / 2., center[1] - size[1] / 2.
|
||||
arect = self.dwg.rect(insert=insert, size=size,
|
||||
fill=svg_color(color))
|
||||
arect.fill(opacity=self.alpha)
|
||||
self.dwg.add(arect)
|
||||
|
||||
def _render_obround(self, obround, color):
|
||||
x, y = tuple(map(mul, obround.position, self.scale))
|
||||
xsize, ysize = tuple(map(mul, (obround.width, obround.height),
|
||||
self.scale))
|
||||
xscale, yscale = self.scale
|
||||
|
||||
# Corner case...
|
||||
if xsize == ysize:
|
||||
circle = self.dwg.circle(center=(x, y),
|
||||
r = (xsize / 2.0),
|
||||
fill=svg_color(color))
|
||||
circle.fill(opacity=self.alpha)
|
||||
self.dwg.add(circle)
|
||||
|
||||
# Horizontal obround
|
||||
elif xsize > ysize:
|
||||
rectx = xsize - ysize
|
||||
recty = ysize
|
||||
c1 = self.dwg.circle(center=(x - (rectx / 2.0), y),
|
||||
r = (ysize / 2.0),
|
||||
fill=svg_color(color))
|
||||
|
||||
c2 = self.dwg.circle(center=(x + (rectx / 2.0), y),
|
||||
r = (ysize / 2.0),
|
||||
fill=svg_color(color))
|
||||
|
||||
rect = self.dwg.rect(insert=(x, y),
|
||||
size=(xsize, ysize),
|
||||
fill=svg_color(color))
|
||||
c1.fill(opacity=self.alpha)
|
||||
c2.fill(opacity=self.alpha)
|
||||
rect.fill(opacity=self.alpha)
|
||||
self.dwg.add(c1)
|
||||
self.dwg.add(c2)
|
||||
self.dwg.add(rect)
|
||||
|
||||
# Vertical obround
|
||||
else:
|
||||
rectx = xsize
|
||||
recty = ysize - xsize
|
||||
c1 = self.dwg.circle(center=(x, y - (recty / 2.)),
|
||||
r = (xsize / 2.),
|
||||
fill=svg_color(color))
|
||||
|
||||
c2 = self.dwg.circle(center=(x, y + (recty / 2.)),
|
||||
r = (xsize / 2.),
|
||||
fill=svg_color(color))
|
||||
|
||||
rect = self.dwg.rect(insert=(x, y),
|
||||
size=(xsize, ysize),
|
||||
fill=svg_color(color))
|
||||
c1.fill(opacity=self.alpha)
|
||||
c2.fill(opacity=self.alpha)
|
||||
rect.fill(opacity=self.alpha)
|
||||
self.dwg.add(c1)
|
||||
self.dwg.add(c2)
|
||||
self.dwg.add(rect)
|
||||
|
||||
def _render_drill(self, primitive, color):
|
||||
center = map(mul, primitive.position, self.scale)
|
||||
hit = self.dwg.circle(center=center, r=SCALE * primitive.radius,
|
||||
fill=svg_color(color))
|
||||
self.dwg.add(hit)
|
||||
|
|
|
|||
189
gerber/rs274x.py
189
gerber/rs274x.py
|
|
@ -19,14 +19,13 @@
|
|||
"""
|
||||
|
||||
|
||||
import re
|
||||
import copy
|
||||
import json
|
||||
import re
|
||||
from .gerber_statements import *
|
||||
from .primitives import *
|
||||
from .cam import CamFile, FileSettings
|
||||
|
||||
|
||||
|
||||
|
||||
def read(filename):
|
||||
""" Read data from filename and return a GerberFile
|
||||
|
||||
|
|
@ -72,8 +71,9 @@ class GerberFile(CamFile):
|
|||
`bounds` is stored as ((min x, max x), (min y, max y))
|
||||
|
||||
"""
|
||||
def __init__(self, statements, settings, filename=None):
|
||||
super(GerberFile, self).__init__(statements, settings, filename)
|
||||
def __init__(self, statements, settings, primitives, filename=None):
|
||||
super(GerberFile, self).__init__(statements, settings, primitives, filename)
|
||||
|
||||
|
||||
@property
|
||||
def comments(self):
|
||||
|
|
@ -111,22 +111,7 @@ class GerberFile(CamFile):
|
|||
for statement in self.statements:
|
||||
f.write(statement.to_gerber())
|
||||
|
||||
def render(self, ctx, filename=None):
|
||||
""" Generate image of layer.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
ctx : :class:`GerberContext`
|
||||
GerberContext subclass used for rendering the image
|
||||
|
||||
filename : string <optional>
|
||||
If provided, the rendered image will be saved to `filename`
|
||||
"""
|
||||
ctx.set_bounds(self.bounds)
|
||||
for statement in self.statements:
|
||||
ctx.evaluate(statement)
|
||||
if filename is not None:
|
||||
ctx.dump(filename)
|
||||
|
||||
|
||||
class GerberParser(object):
|
||||
|
|
@ -178,15 +163,31 @@ class GerberParser(object):
|
|||
def __init__(self):
|
||||
self.settings = FileSettings()
|
||||
self.statements = []
|
||||
self.primitives = []
|
||||
self.apertures = {}
|
||||
self.current_region = None
|
||||
self.x = 0
|
||||
self.y = 0
|
||||
|
||||
self.aperture = 0
|
||||
self.interpolation = 'linear'
|
||||
self.direction = 'clockwise'
|
||||
self.image_polarity = 'positive'
|
||||
self.level_polarity = 'dark'
|
||||
self.region_mode = 'off'
|
||||
self.quadrant_mode = 'multi-quadrant'
|
||||
self.step_and_repeat = (1, 1, 0, 0)
|
||||
|
||||
|
||||
def parse(self, filename):
|
||||
fp = open(filename, "r")
|
||||
data = fp.readlines()
|
||||
|
||||
for stmt in self._parse(data):
|
||||
self.evaluate(stmt)
|
||||
self.statements.append(stmt)
|
||||
|
||||
return GerberFile(self.statements, self.settings, filename)
|
||||
return GerberFile(self.statements, self.settings, self.primitives, filename)
|
||||
|
||||
def dump_json(self):
|
||||
stmts = {"statements": [stmt.__dict__ for stmt in self.statements]}
|
||||
|
|
@ -218,7 +219,7 @@ class GerberParser(object):
|
|||
did_something = False
|
||||
|
||||
# Region Mode
|
||||
(mode, r) = self._match_one(self.REGION_MODE_STMT, line)
|
||||
(mode, r) = _match_one(self.REGION_MODE_STMT, line)
|
||||
if mode:
|
||||
yield RegionModeStmt.from_gerber(line)
|
||||
line = r
|
||||
|
|
@ -226,7 +227,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# Quadrant Mode
|
||||
(mode, r) = self._match_one(self.QUAD_MODE_STMT, line)
|
||||
(mode, r) = _match_one(self.QUAD_MODE_STMT, line)
|
||||
if mode:
|
||||
yield QuadrantModeStmt.from_gerber(line)
|
||||
line = r
|
||||
|
|
@ -234,7 +235,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# coord
|
||||
(coord, r) = self._match_one(self.COORD_STMT, line)
|
||||
(coord, r) = _match_one(self.COORD_STMT, line)
|
||||
if coord:
|
||||
yield CoordStmt.from_dict(coord, self.settings)
|
||||
line = r
|
||||
|
|
@ -242,7 +243,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# aperture selection
|
||||
(aperture, r) = self._match_one(self.APERTURE_STMT, line)
|
||||
(aperture, r) = _match_one(self.APERTURE_STMT, line)
|
||||
if aperture:
|
||||
yield ApertureStmt(**aperture)
|
||||
|
||||
|
|
@ -251,7 +252,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# comment
|
||||
(comment, r) = self._match_one(self.COMMENT_STMT, line)
|
||||
(comment, r) = _match_one(self.COMMENT_STMT, line)
|
||||
if comment:
|
||||
yield CommentStmt(comment["comment"])
|
||||
did_something = True
|
||||
|
|
@ -259,7 +260,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# parameter
|
||||
(param, r) = self._match_one_from_many(self.PARAM_STMT, line)
|
||||
(param, r) = _match_one_from_many(self.PARAM_STMT, line)
|
||||
if param:
|
||||
if param["param"] == "FS":
|
||||
stmt = FSParamStmt.from_dict(param)
|
||||
|
|
@ -292,7 +293,7 @@ class GerberParser(object):
|
|||
continue
|
||||
|
||||
# eof
|
||||
(eof, r) = self._match_one(self.EOF_STMT, line)
|
||||
(eof, r) = _match_one(self.EOF_STMT, line)
|
||||
if eof:
|
||||
yield EofStmt()
|
||||
did_something = True
|
||||
|
|
@ -311,17 +312,125 @@ class GerberParser(object):
|
|||
yield UnknownStmt(line)
|
||||
oldline = line
|
||||
|
||||
def _match_one(self, expr, data):
|
||||
match = expr.match(data)
|
||||
if match is None:
|
||||
return ({}, None)
|
||||
def evaluate(self, stmt):
|
||||
""" Evaluate Gerber statement and update image accordingly.
|
||||
|
||||
This method is called once for each statement in the file as it
|
||||
is parsed.
|
||||
|
||||
Parameters
|
||||
----------
|
||||
statement : Statement
|
||||
Gerber/Excellon statement to evaluate.
|
||||
|
||||
"""
|
||||
if isinstance(stmt, (CommentStmt, UnknownStmt, EofStmt)):
|
||||
return
|
||||
|
||||
elif isinstance(stmt, ParamStmt):
|
||||
self._evaluate_param(stmt)
|
||||
|
||||
elif isinstance(stmt, CoordStmt):
|
||||
self._evaluate_coord(stmt)
|
||||
|
||||
elif isinstance(stmt, ApertureStmt):
|
||||
self._evaluate_aperture(stmt)
|
||||
|
||||
elif isinstance(stmt, (RegionModeStmt, QuadrantModeStmt)):
|
||||
self._evaluate_mode(stmt)
|
||||
|
||||
else:
|
||||
raise Exception("Invalid statement to evaluate")
|
||||
|
||||
|
||||
def _define_aperture(self, d, shape, modifiers):
|
||||
aperture = None
|
||||
if shape == 'C':
|
||||
diameter = float(modifiers[0][0])
|
||||
aperture = Circle(position=None, diameter=diameter)
|
||||
elif shape == 'R':
|
||||
width = float(modifiers[0][0])
|
||||
height = float(modifiers[0][1])
|
||||
aperture = Rectangle(position=None, width=width, height=height)
|
||||
elif shape == 'O':
|
||||
width = float(modifiers[0][0])
|
||||
height = float(modifiers[0][1])
|
||||
aperture = Obround(position=None, width=width, height=height)
|
||||
self.apertures[d] = aperture
|
||||
|
||||
def _evaluate_mode(self, stmt):
|
||||
if stmt.type == 'RegionMode':
|
||||
if self.region_mode == 'on' and stmt.mode == 'off':
|
||||
self.primitives.append(Region(self.current_region, self.level_polarity))
|
||||
self.current_region = None
|
||||
self.region_mode = stmt.mode
|
||||
elif stmt.type == 'QuadrantMode':
|
||||
self.quadrant_mode = stmt.mode
|
||||
|
||||
def _evaluate_param(self, stmt):
|
||||
if stmt.param == "FS":
|
||||
self.settings.zero_suppression = stmt.zero_suppression
|
||||
self.settings.format = stmt.format
|
||||
self.settings.notation = stmt.notation
|
||||
elif stmt.param == "MO":
|
||||
self.settings.units = stmt.mode
|
||||
elif stmt.param == "IP":
|
||||
self.image_polarity = stmt.ip
|
||||
elif stmt.param == "LP":
|
||||
self.level_polarity = stmt.lp
|
||||
elif stmt.param == "AD":
|
||||
self._define_aperture(stmt.d, stmt.shape, stmt.modifiers)
|
||||
|
||||
def _evaluate_coord(self, stmt):
|
||||
x = self.x if stmt.x is None else stmt.x
|
||||
y = self.y if stmt.y is None else stmt.y
|
||||
if stmt.function in ("G01", "G1"):
|
||||
self.interpolation = 'linear'
|
||||
elif stmt.function in ('G02', 'G2', 'G03', 'G3'):
|
||||
self.interpolation = 'arc'
|
||||
self.direction = ('clockwise' if stmt.function in ('G02', 'G2')
|
||||
else 'counterclockwise')
|
||||
if stmt.op == "D01":
|
||||
if self.region_mode == 'on':
|
||||
if self.current_region is None:
|
||||
self.current_region = [(self.x, self.y), ]
|
||||
self.current_region.append((x, y,))
|
||||
else:
|
||||
start = (self.x, self.y)
|
||||
end = (x, y)
|
||||
width = self.apertures[self.aperture].stroke_width
|
||||
if self.interpolation == 'linear':
|
||||
self.primitives.append(Line(start, end, width, self.level_polarity))
|
||||
else:
|
||||
center = (start[0] + stmt.i, start[1] + stmt.j)
|
||||
self.primitives.append(Arc(start, end, center, self.direction, width, self.level_polarity))
|
||||
|
||||
elif stmt.op == "D02":
|
||||
pass
|
||||
|
||||
elif stmt.op == "D03":
|
||||
primitive = copy.deepcopy(self.apertures[self.aperture])
|
||||
primitive.position = (x, y)
|
||||
primitive.level_polarity = self.level_polarity
|
||||
self.primitives.append(primitive)
|
||||
self.x, self.y = x, y
|
||||
|
||||
def _evaluate_aperture(self, stmt):
|
||||
self.aperture = stmt.d
|
||||
|
||||
|
||||
def _match_one(expr, data):
|
||||
match = expr.match(data)
|
||||
if match is None:
|
||||
return ({}, None)
|
||||
else:
|
||||
return (match.groupdict(), data[match.end(0):])
|
||||
|
||||
|
||||
def _match_one_from_many(exprs, data):
|
||||
for expr in exprs:
|
||||
match = expr.match(data)
|
||||
if match:
|
||||
return (match.groupdict(), data[match.end(0):])
|
||||
|
||||
def _match_one_from_many(self, exprs, data):
|
||||
for expr in exprs:
|
||||
match = expr.match(data)
|
||||
if match:
|
||||
return (match.groupdict(), data[match.end(0):])
|
||||
|
||||
return ({}, None)
|
||||
return ({}, None)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue