165 lines
6.1 KiB
Python
165 lines
6.1 KiB
Python
#! /usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
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# Based on render_svg.py by Paulo Henrique Silva <ph.silva@gmail.com>
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from .render import GerberContext
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from .apertures import Circle, Rect, Obround, Polygon
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import svgwrite
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SCALE = 300
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class SvgCircle(Circle):
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def draw(self, ctx, x, y):
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return ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
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end=(x * SCALE, -y * SCALE),
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stroke="rgb(184, 115, 51)",
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stroke_width=SCALE * self.diameter,
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stroke_linecap="round")
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def flash(self, ctx, x, y):
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return [ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
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r = SCALE * (self.diameter / 2.0),
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fill='rgb(184, 115, 51)'), ]
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class SvgRect(Rect):
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def draw(self, ctx, x, y):
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return ctx.dwg.line(start=(ctx.x * SCALE, -ctx.y * SCALE),
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end=(x * SCALE, -y * SCALE),
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stroke="rgb(184, 115, 51)", stroke_width=2,
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stroke_linecap="butt")
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def flash(self, ctx, x, y):
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xsize, ysize = self.size
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return [ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2)),
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-SCALE * (y + (ysize / 2))),
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size=(SCALE * xsize, SCALE * ysize),
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fill="rgb(184, 115, 51)"), ]
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class SvgObround(Obround):
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def draw(self, ctx, x, y):
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pass
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def flash(self, ctx, x, y):
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xsize, ysize = self.size
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# horizontal obround
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if xsize == ysize:
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return [ctx.dwg.circle(center=(x * SCALE, -y * SCALE),
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r = SCALE * (x / 2.0),
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fill='rgb(184, 115, 51)'), ]
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if xsize > ysize:
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rectx = xsize - ysize
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recty = ysize
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lcircle = ctx.dwg.circle(center=((x - (rectx / 2.0)) * SCALE,
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-y * SCALE),
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r = SCALE * (ysize / 2.0),
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fill='rgb(184, 115, 51)')
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rcircle = ctx.dwg.circle(center=((x + (rectx / 2.0)) * SCALE,
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-y * SCALE),
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r = SCALE * (ysize / 2.0),
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fill='rgb(184, 115, 51)')
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rect = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2.)),
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-SCALE * (y + (ysize / 2.))),
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size=(SCALE * xsize, SCALE * ysize),
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fill='rgb(184, 115, 51)')
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return [lcircle, rcircle, rect, ]
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# Vertical obround
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else:
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rectx = xsize
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recty = ysize - xsize
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lcircle = ctx.dwg.circle(center=(x * SCALE,
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(y - (recty / 2.)) * -SCALE),
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r = SCALE * (xsize / 2.),
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fill='rgb(184, 115, 51)')
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ucircle = ctx.dwg.circle(center=(x * SCALE,
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(y + (recty / 2.)) * -SCALE),
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r = SCALE * (xsize / 2.),
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fill='rgb(184, 115, 51)')
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rect = ctx.dwg.rect(insert=(SCALE * (x - (xsize / 2.)),
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-SCALE * (y + (ysize / 2.))),
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size=(SCALE * xsize, SCALE * ysize),
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fill='rgb(184, 115, 51)')
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return [lcircle, ucircle, rect, ]
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class GerberSvgContext(GerberContext):
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def __init__(self):
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GerberContext.__init__(self)
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self.apertures = {}
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self.dwg = svgwrite.Drawing()
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#self.dwg.add(self.dwg.rect(insert=(0, 0), size=(2000, 2000), fill="black"))
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def set_bounds(self, bounds):
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xbounds, ybounds = bounds
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size = (SCALE * (xbounds[1] - xbounds[0]), SCALE * (ybounds[1] - ybounds[0]))
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self.dwg.add(self.dwg.rect(insert=(SCALE * xbounds[0], -SCALE * ybounds[1]), size=size, fill="black"))
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def define_aperture(self, d, shape, modifiers):
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aperture = None
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if shape == 'C':
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aperture = SvgCircle(diameter=float(modifiers[0][0]))
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elif shape == 'R':
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aperture = SvgRect(size=modifiers[0][0:2])
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elif shape == 'O':
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aperture = SvgObround(size=modifiers[0][0:2])
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self.apertures[d] = aperture
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def stroke(self, x, y):
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super(GerberSvgContext, self).stroke(x, y)
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if self.interpolation == 'linear':
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self.line(x, y)
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elif self.interpolation == 'arc':
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self.arc(x, y)
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def line(self, x, y):
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super(GerberSvgContext, self).line(x, y)
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x, y = self.resolve(x, y)
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ap = self.apertures.get(self.aperture, None)
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if ap is None:
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return
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self.dwg.add(ap.draw(self, x, y))
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self.move(x, y, resolve=False)
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def arc(self, x, y):
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super(GerberSvgContext, self).arc(x, y)
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def flash(self, x, y):
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super(GerberSvgContext, self).flash(x, y)
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x, y = self.resolve(x, y)
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ap = self.apertures.get(self.aperture, None)
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if ap is None:
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return
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for shape in ap.flash(self, x, y):
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self.dwg.add(shape)
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self.move(x, y, resolve=False)
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def drill(self, x, y, diameter):
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hit = self.dwg.circle(center=(x*SCALE, -y*SCALE), r=SCALE*(diameter/2.0), fill='gray')
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self.dwg.add(hit)
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def dump(self, filename):
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self.dwg.saveas(filename)
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