Add cached refs to last 1d xy outputs

For the purposes of avoiding another full format call we can stash the
last rendered 1d xy pre-graphics formats as
`IncrementalFormatter.x/y_1d: np.ndarray`s and allow readers in the viz
and render machinery to use this data easily for things like "only
drawing the last uppx's worth of data as a line". Also add
a `.flat_index_ratio: float` which can be used similarly as a scalar
applied to indexes into the src array but instead when indexing
(flattened) 1d xy formatted outputs. Finally, this drops the way
overdone/noisy `.__repr__()` meth we had XD
multichartz_backup
Tyler Goodlet 2023-01-17 17:08:17 -05:00
parent f3468e6d28
commit 88133792ea
1 changed files with 12 additions and 28 deletions

View File

@ -54,6 +54,10 @@ class IncrementalFormatter(msgspec.Struct):
shm: ShmArray
viz: Viz
# the value to be multiplied any any index into the x/y_1d arrays
# given the input index is based on the original source data array.
flat_index_ratio: float = 1
@property
def index_field(self) -> 'str':
'''
@ -91,8 +95,8 @@ class IncrementalFormatter(msgspec.Struct):
xy_nd_stop: int | None = None
# TODO: eventually incrementally update 1d-pre-graphics path data?
# x_1d: Optional[np.ndarray] = None
# y_1d: Optional[np.ndarray] = None
x_1d: np.ndarray | None = None
y_1d: np.ndarray | None = None
# incremental view-change state(s) tracking
_last_vr: tuple[float, float] | None = None
@ -106,32 +110,6 @@ class IncrementalFormatter(msgspec.Struct):
'''
return self.viz.index_step()
def __repr__(self) -> str:
msg = (
f'{type(self)}: ->\n\n'
f'fqsn={self.viz.name}\n'
f'shm_name={self.shm.token["shm_name"]}\n\n'
f'last_vr={self._last_vr}\n'
f'last_ivdr={self._last_ivdr}\n\n'
f'xy_slice={self.xy_slice}\n'
# f'xy_nd_stop={self.xy_nd_stop}\n\n'
)
x_nd_len = 0
y_nd_len = 0
if self.x_nd is not None:
x_nd_len = len(self.x_nd)
y_nd_len = len(self.y_nd)
msg += (
f'x_nd_len={x_nd_len}\n'
f'y_nd_len={y_nd_len}\n'
)
return msg
def diff(
self,
new_read: tuple[np.ndarray],
@ -353,6 +331,11 @@ class IncrementalFormatter(msgspec.Struct):
array_key,
view_range,
)
# cache/save last 1d outputs for use by other
# readers (eg. `Viz.draw_last_datum()` in the
# only-draw-last-uppx case).
self.x_1d = x_1d
self.y_1d = y_1d
# app_tres = None
# if append_len:
@ -533,6 +516,7 @@ class OHLCBarsFmtr(IncrementalFormatter):
])
fields: list[str] = ['open', 'high', 'low', 'close']
flat_index_ratio: float = 4
def allocate_xy_nd(
self,