diff options
Diffstat (limited to 'gerber/render.py')
| -rw-r--r-- | gerber/render.py | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/gerber/render.py b/gerber/render.py deleted file mode 100644 index 201f793..0000000 --- a/gerber/render.py +++ /dev/null @@ -1,185 +0,0 @@ -#! /usr/bin/env python -# -*- coding: utf-8 -*- - -# Copyright 2013-2014 Paulo Henrique Silva <ph.silva@gmail.com> - -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at - -# http://www.apache.org/licenses/LICENSE-2.0 - -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -from .parser import CommentStmt, UnknownStmt, EofStmt, ParamStmt, CoordStmt, ApertureStmt - -IMAGE_POLARITY_POSITIVE = 1 -IMAGE_POLARITY_NEGATIVE = 2 - -LEVEL_POLARITY_DARK = 1 -LEVEL_POLARITY_CLEAR = 2 - -NOTATION_ABSOLUTE = 1 -NOTATION_INCREMENTAL = 2 - -UNIT_INCH = 1 -UNIT_MM = 2 - -INTERPOLATION_LINEAR = 1 -INTERPOLATION_ARC = 2 - - -class GerberCoordFormat(object): - def __init__(self, zeroes, x, y): - self.omit_leading_zeroes = True if zeroes == "L" else False - self.omit_trailing_zeroes = True if zeroes == "T" else False - self.x_int_digits, self.x_dec_digits = [int(d) for d in x] - self.y_int_digits, self.y_dec_digits = [int(d) for d in y] - - def resolve(self, x, y): - new_x = x - new_y = y - - if new_x is not None: - negative = "-" in new_x - new_x = new_x.replace("-", "") - - missing_zeroes = (self.x_int_digits + self.x_dec_digits) - len(new_x) - - if missing_zeroes and self.omit_leading_zeroes: - new_x = (missing_zeroes * "0") + new_x - elif missing_zeroes and self.omit_trailing_zeroes: - new_x += missing_zeroes * "0" - - new_x = float("{0}{1}.{2}".format("-" if negative else "", - new_x[:self.x_int_digits], - new_x[self.x_int_digits:])) - - if new_y is not None: - negative = "-" in new_y - new_y = new_y.replace("-", "") - - missing_zeroes = (self.y_int_digits + self.y_dec_digits) - len(new_y) - - if missing_zeroes and self.omit_leading_zeroes: - new_y = (missing_zeroes * "0") + new_y - elif missing_zeroes and self.omit_trailing_zeroes: - new_y += missing_zeroes * "0" - - new_y = float("{0}{1}.{2}".format("-" if negative else "", - new_y[:self.y_int_digits], - new_y[self.y_int_digits:])) - - return new_x, new_y - - -class GerberContext(object): - coord_format = None - coord_notation = NOTATION_ABSOLUTE - coord_unit = None - - x = 0 - y = 0 - - aperture = 0 - interpolation = INTERPOLATION_LINEAR - - image_polarity = IMAGE_POLARITY_POSITIVE - level_polarity = LEVEL_POLARITY_DARK - - def __init__(self): - pass - - def set_coord_format(self, zeroes, x, y): - self.coord_format = GerberCoordFormat(zeroes, x, y) - - def set_coord_notation(self, notation): - self.coord_notation = NOTATION_ABSOLUTE if notation == "A" else NOTATION_INCREMENTAL - - def set_coord_unit(self, unit): - self.coord_unit = UNIT_INCH if unit == "IN" else UNIT_MM - - def set_image_polarity(self, polarity): - self.image_polarity = IMAGE_POLARITY_POSITIVE if polarity == "POS" else IMAGE_POLARITY_NEGATIVE - - def set_level_polarity(self, polarity): - self.level_polarity = LEVEL_POLARITY_DARK if polarity == "D" else LEVEL_POLARITY_CLEAR - - def set_interpolation(self, interpolation): - self.interpolation = INTERPOLATION_LINEAR if interpolation in ("G01", "G1") else INTERPOLATION_ARC - - def set_aperture(self, d): - self.aperture = d - - def resolve(self, x, y): - x, y = self.coord_format.resolve(x, y) - return x or self.x, y or self.y - - def define_aperture(self, d, shape, modifiers): - pass - - def move(self, x, y, resolve=True): - if resolve: - self.x, self.y = self.resolve(x, y) - else: - self.x, self.y = x, y - - def stroke(self, x, y): - pass - - def line(self, x, y): - pass - - def arc(self, x, y): - pass - - def flash(self, x, y): - pass - - def evaluate(self, stmt): - 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) - - else: - raise Exception("Invalid statement to evaluate") - - def _evaluate_param(self, stmt): - if stmt.param == "FS": - self.set_coord_format(stmt.zero, stmt.x, stmt.y) - self.set_coord_notation(stmt.notation) - elif stmt.param == "MO:": - self.set_coord_unit(stmt.mo) - 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 _evaluate_coord(self, stmt): - - if stmt.function in ("G01", "G1", "G02", "G2", "G03", "G3"): - self.set_interpolation(stmt.function) - - if stmt.op == "D01": - self.stroke(stmt.x, stmt.y) - 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) |