mirror of
git://projects.qi-hardware.com/ben-counterweight.git
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137 lines
2.9 KiB
Python
Executable File
137 lines
2.9 KiB
Python
Executable File
#!/usr/bin/python
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#
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# gnuplot the outline
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#
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def outline_gnuplot(points):
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while len(points):
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print points.pop(0), points.pop(0)
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print
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#
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# make a HeeksCAD sketch of the outline
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#
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def cad_line(sk, x0, y0, x1, y1):
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cad.line(x0, y0, x1, y1)
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cad.add(sk, cad.getlastobj())
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def outline_cad(points):
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cad.sketch()
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sk = cad.getlastobj()
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last_x = points.pop(0)
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last_y = points.pop(0)
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while len(points):
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x = points.pop(0)
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y = points.pop(0)
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cad_line(sk, last_x, last_y, x, y)
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last_x = x
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last_y = y
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cad.reorder(sk)
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return sk
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def closed_outline(*args):
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l = list(args)
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l.append(args[0])
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l.append(args[1])
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do(l)
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def open_outline(*args):
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do(list(args))
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#
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# Make the cover sheet 2 mm larger than the counterweight on all sides. We need
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# the following exceptions to avoid mechanical interference:
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#
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# - at the power connector, keep the ymin edge flush with the counterweight
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# - follow the counterweight's J-shaped space for the reset button, with the
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# border reduced from 2 mm to 0.5 mm
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# - next to the long side of the battery, follow the counterweight's edge
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# - also follow the counterweight's bay for the battery cover's tongue and
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# make it even 0.5 mm larger, anticipating imperfect registration
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#
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# Also, as a simplification, we don't follow steps and recesses in these cases:
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#
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# - 1 mm steps on the left and right side. Just use the larger size.
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# - the whole sponge area. Just put the cover on top of the sponge.
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# - all recesses near the batter, except the one for the lid's central tongue
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#
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# The above simplifications are possible, because, being on top of the
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# counterweight, we've already cleared the obstacles these steps and recesses
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# are designed to avoid.
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#
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#
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# Note: to visualize the shape defined below, plot the counterweight in 2D with
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# gnuplot and follow the shape it the mouse.
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#
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# To visualize the result, do this:
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#
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# ./cw.py >cw.gnuplot
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# ./cvr.py >cvr.gnuplot
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# gnuplot
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# gnuplot> set style data lines
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# gnuplot> plot "cw.gnuplot", "cvr.gnuplot"
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#
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def outline():
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closed_outline(
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# counterweight corners: (16, 46) and (15, 60)
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13, 46,
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# (15, 69.5)
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13, 71.5,
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# (82.5, 65), (82.5, 64), (89.5, 64), (89.5, 69)
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83, 71.5,
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83, 64.5, 89, 64.5, 89, 71,
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# (100, 69)
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102, 71,
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# (99.5, 46)
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102, 44,
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# (88, 46)
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86, 44,
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# (88, 55), (82, 50)
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86, 50,
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# (59.5, 55), (59.5, 56.5), (52.5, 56.5), (52.5, 55)
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60, 50,
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60, 57, 52, 57, 52, 50,
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# (24, 55)
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26, 50,
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# (24, 46)
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26, 46)
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def label():
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# C
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open_outline(
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25+5, 55+10,
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25, 55+10,
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25, 55,
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25+5, 55)
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# W
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open_outline(
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33, 55+10,
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33, 55,
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33+2.5, 55+5,
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33+5, 55,
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33+5, 55+10)
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if __name__ == "__main__":
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do = outline_gnuplot
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else:
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import HeeksPython as cad
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do = outline_cad
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outline()
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label()
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