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Misc curve doc strings

async_hist_loading
Tyler Goodlet 2022-02-11 10:41:47 -05:00
parent 1440e0b58f
commit 5c343aa748
1 changed files with 16 additions and 3 deletions
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19
piker/ui/_curve.py
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@ -108,7 +108,6 @@ class FastAppendCurve(pg.PlotCurveItem):
path redraw. path redraw.
''' '''
def __init__( def __init__(
self, self,
*args, *args,
@ -167,7 +166,13 @@ class FastAppendCurve(pg.PlotCurveItem):
y: np.ndarray, y: np.ndarray,
) -> QtGui.QPainterPath: ) -> QtGui.QPainterPath:
'''
Update curve from input 2-d data.
Compare with a cached "x-range" state and (pre/a)ppend based on
a length diff.
'''
profiler = pg.debug.Profiler(disabled=not pg_profile_enabled()) profiler = pg.debug.Profiler(disabled=not pg_profile_enabled())
flip_cache = False flip_cache = False
@ -316,12 +321,19 @@ class FastAppendCurve(pg.PlotCurveItem):
self.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache) self.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache)
def disable_cache(self) -> None: def disable_cache(self) -> None:
'''
Disable the use of the pixel coordinate cache and trigger a geo event.
'''
# XXX: pretty annoying but, without this there's little # XXX: pretty annoying but, without this there's little
# artefacts on the append updates to the curve... # artefacts on the append updates to the curve...
self.setCacheMode(QtWidgets.QGraphicsItem.NoCache) self.setCacheMode(QtWidgets.QGraphicsItem.NoCache)
self.prepareGeometryChange() self.prepareGeometryChange()
def boundingRect(self): def boundingRect(self):
'''
Compute and then cache our rect.
'''
if self.path is None: if self.path is None:
return QtGui.QPainterPath().boundingRect() return QtGui.QPainterPath().boundingRect()
else: else:
@ -331,9 +343,10 @@ class FastAppendCurve(pg.PlotCurveItem):
return self._br() return self._br()
def _br(self): def _br(self):
"""Post init ``.boundingRect()```. '''
Post init ``.boundingRect()```.
""" '''
hb = self.path.controlPointRect() hb = self.path.controlPointRect()
hb_size = hb.size() hb_size = hb.size()
# print(f'hb_size: {hb_size}') # print(f'hb_size: {hb_size}')