class Gear(Glyph):
""" Render gears.
The details and nomenclature concerning gear construction can
be quite involved. For more information, consult the `Wikipedia
article for Gear`_.
.. _Wikipedia article for Gear: http://en.wikipedia.org/wiki/Gear
"""
__implementation__ = "gear.ts"
x = NumberSpec(help="""
The x-coordinates of the center of the gears.
""")
y = NumberSpec(help="""
The y-coordinates of the center of the gears.
""")
angle = AngleSpec(default=0, help="""
The angle the gears are rotated from horizontal. [rad]
""")
module = NumberSpec(help="""
A scaling factor, given by::
m = p / pi
where *p* is the circular pitch, defined as the distance from one
face of a tooth to the corresponding face of an adjacent tooth on
the same gear, measured along the pitch circle. [float]
""")
teeth = NumberSpec(help="""
How many teeth the gears have. [int]
""")
pressure_angle = NumberSpec(default=20, help="""
The complement of the angle between the direction that the teeth
exert force on each other, and the line joining the centers of the
two gears. [deg]
""")
shaft_size = NumberSpec(default=0.3, help="""
The central gear shaft size as a percentage of the overall gear
size. [float]
""")
internal = NumberSpec(default=False, help="""
Whether the gear teeth are internal. [bool]
""")
line_props = Include(LineProps, use_prefix=False, help="""
The %s values for the gears.
""")
fill_props = Include(FillProps, use_prefix=False, help="""
The %s values for the gears.
""")
class UnitsSpecModel(Model):
distance = DistanceSpec(42)
angle = AngleSpec(0)
class DupeProps(hp.HasProps):
bar = AngleSpec()
bar_units = String()
