roundingPen

class fontTools.pens.roundingPen.RoundingPen(outPen, roundFunc=<function otRound>, transformRoundFunc=<function noRound>)

Bases: FilterPen

Filter pen that rounds point coordinates and component XY offsets to integer. For rounding the component transform values, a separate round function can be passed to the pen.

>>> from fontTools.pens.recordingPen import RecordingPen
>>> recpen = RecordingPen()
>>> roundpen = RoundingPen(recpen)
>>> roundpen.moveTo((0.4, 0.6))
>>> roundpen.lineTo((1.6, 2.5))
>>> roundpen.qCurveTo((2.4, 4.6), (3.3, 5.7), (4.9, 6.1))
>>> roundpen.curveTo((6.4, 8.6), (7.3, 9.7), (8.9, 10.1))
>>> roundpen.addComponent("a", (1.5, 0, 0, 1.5, 10.5, -10.5))
>>> recpen.value == [
...     ('moveTo', ((0, 1),)),
...     ('lineTo', ((2, 3),)),
...     ('qCurveTo', ((2, 5), (3, 6), (5, 6))),
...     ('curveTo', ((6, 9), (7, 10), (9, 10))),
...     ('addComponent', ('a', (1.5, 0, 0, 1.5, 11, -10))),
... ]
True

moveTo(pt)

lineTo(pt)

curveTo(*points)

qCurveTo(*points)

addComponent(glyphName, transformation)

class fontTools.pens.roundingPen.RoundingPointPen(outPen, roundFunc=<function otRound>, transformRoundFunc=<function noRound>)

Bases: FilterPointPen

Filter point pen that rounds point coordinates and component XY offsets to integer. For rounding the component scale values, a separate round function can be passed to the pen.

>>> from fontTools.pens.recordingPen import RecordingPointPen
>>> recpen = RecordingPointPen()
>>> roundpen = RoundingPointPen(recpen)
>>> roundpen.beginPath()
>>> roundpen.addPoint((0.4, 0.6), 'line')
>>> roundpen.addPoint((1.6, 2.5), 'line')
>>> roundpen.addPoint((2.4, 4.6))
>>> roundpen.addPoint((3.3, 5.7))
>>> roundpen.addPoint((4.9, 6.1), 'qcurve')
>>> roundpen.endPath()
>>> roundpen.addComponent("a", (1.5, 0, 0, 1.5, 10.5, -10.5))
>>> recpen.value == [
...     ('beginPath', (), {}),
...     ('addPoint', ((0, 1), 'line', False, None), {}),
...     ('addPoint', ((2, 3), 'line', False, None), {}),
...     ('addPoint', ((2, 5), None, False, None), {}),
...     ('addPoint', ((3, 6), None, False, None), {}),
...     ('addPoint', ((5, 6), 'qcurve', False, None), {}),
...     ('endPath', (), {}),
...     ('addComponent', ('a', (1.5, 0, 0, 1.5, 11, -10)), {}),
... ]
True

addPoint(pt, segmentType=None, smooth=False, name=None, identifier=None, **kwargs)

addComponent(baseGlyphName, transformation, identifier=None, **kwargs)