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Pepper render routines with time-slice calls

epoch_indexing_and_dataviz_layer
Tyler Goodlet 2022-11-28 12:58:47 -05:00
parent 5a0673d66f
commit be21f9829e
1 changed files with 53 additions and 62 deletions
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93
piker/ui/_render.py
View File

@ -140,7 +140,7 @@ def render_baritems(
# - if instead we are in a downsamplig state then we to
x_gt = 6
uppx = curve.x_uppx()
print(f'BARS UPPX: {uppx}')
# print(f'BARS UPPX: {uppx}')
in_line = should_line = curve.isVisible()
if (
in_line
@ -280,26 +280,25 @@ class Viz(msgspec.Struct): # , frozen=True):
arr = shm.array
# get relative slice indexes into array
(
abs_slc,
read_slc,
mask,
) = self.flume.slice_from_time(
arr,
start_t=lbar,
stop_t=rbar,
)
# (
# abs_slc,
# read_slc,
# mask,
# ) = self.flume.slice_from_time(
# arr,
# start_t=lbar,
# stop_t=rbar,
# )
# slice_view = arr[mask]
# TODO: should we just add/use a method
# on the shm to do this?
# ifirst = arr[0]['index']
# slice_view = arr[
# lbar - ifirst:
# (rbar - ifirst) + 1
# ]
slice_view = arr[mask]
ifirst = arr[0]['index']
slice_view = arr[
lbar - ifirst:
(rbar - ifirst) + 1
]
if not slice_view.size:
return None
@ -349,7 +348,7 @@ class Viz(msgspec.Struct): # , frozen=True):
def datums_range(
self,
index_field: str = 'time',
index_field: str = 'index',
) -> tuple[
int, int, int, int, int, int
@ -359,11 +358,11 @@ class Viz(msgspec.Struct): # , frozen=True):
'''
l, r = self.view_range()
l = round(l)
r = round(r)
# # TODO: avoid this and have shm passed
# # in earlier.
if index_field == 'index':
l, r = round(l), round(r)
# # TODO: avoid this and have shm passed in earlier?
# if self.shm is None:
# # haven't initialized the viz yet
# return (0, l, 0, 0, r, 0)
@ -383,18 +382,10 @@ class Viz(msgspec.Struct): # , frozen=True):
stop,
)
def bars_range(self) -> tuple[int, int, int, int]:
'''
Return a range tuple for the bars present in view.
'''
start, l, datum_start, datum_stop, r, stop = self.datums_range()
return l, datum_start, datum_stop, r
def read(
self,
array_field: Optional[str] = None,
index_field: str = 'time',
index_field: str = 'index',
) -> tuple[
int, int, np.ndarray,
@ -410,10 +401,6 @@ class Viz(msgspec.Struct): # , frozen=True):
# readable data
array = self.shm.array
# indexes = array[index_field]
# ifirst = indexes[0]
# ilast = indexes[-1]
(
ifirst,
l,
@ -423,6 +410,10 @@ class Viz(msgspec.Struct): # , frozen=True):
ilast,
) = self.datums_range(index_field=index_field)
abs_slc = slice(ifirst, ilast)
# TODO: support time slicing
if index_field == 'time':
(
abs_slc,
read_slc,
@ -432,27 +423,27 @@ class Viz(msgspec.Struct): # , frozen=True):
start_t=lbar,
stop_t=rbar,
)
# (
# abs_slc,
# read_slc,
# in_view,
# ) = self.flume.view_data(
# self.plot,
# )
# get read-relative indices adjusting
# for master shm index.
# lbar_i = max(l, ifirst) - ifirst
# rbar_i = min(r, ilast) - ifirst
in_view = array[read_slc]
# array-index slicing
# TODO: can we do time based indexing using arithmetic presuming
# a uniform time stamp step size?
else:
# get read-relative indices adjusting for master shm index.
lbar_i = max(l, ifirst) - ifirst
rbar_i = min(r, ilast) - ifirst
# NOTE: the slice here does NOT include the extra ``+ 1``
# BUT the ``in_view`` slice DOES..
read_slc = slice(lbar_i, rbar_i)
in_view = array[lbar_i: rbar_i + 1]
# XXX: same as ^
# to_draw = array[lbar - ifirst:(rbar - ifirst) + 1]
if array_field:
array = array[array_field]
# TODO: we could do it this way as well no?
# to_draw = array[lbar - ifirst:(rbar - ifirst) + 1]
# in_view = array[lbar_i: rbar_i + 1]
return (
# abs indices + full data set
abs_slc.start,