pikers
/
piker
3
0
Fork 0
Code Issues 2 Pull Requests 4 Packages Projects Releases Wiki Activity

Expose "bar gap margin" as `.ui._formatters.BGM: float`

distribute_dis
Tyler Goodlet 2023-12-28 10:37:20 -05:00
parent 0d18cb65c3
commit 07331a160e
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
piker/data/_formatters.py
View File

@ -41,6 +41,11 @@ if TYPE_CHECKING:
) )
from piker.toolz import Profiler from piker.toolz import Profiler
# default gap between bars: "bar gap multiplier"
# - 0.5 is no overlap between OC arms,
# - 1.0 is full overlap on each neighbor sample
BGM: float = 0.16
class IncrementalFormatter(msgspec.Struct): class IncrementalFormatter(msgspec.Struct):
''' '''
@ -513,6 +518,7 @@ class IncrementalFormatter(msgspec.Struct):
class OHLCBarsFmtr(IncrementalFormatter): class OHLCBarsFmtr(IncrementalFormatter):
x_offset: np.ndarray = np.array([ x_offset: np.ndarray = np.array([
-0.5, -0.5,
0, 0,
@ -604,8 +610,9 @@ class OHLCBarsFmtr(IncrementalFormatter):
vr: tuple[int, int], vr: tuple[int, int],
start: int = 0, # XXX: do we need this? start: int = 0, # XXX: do we need this?
# 0.5 is no overlap between arms, 1.0 is full overlap # 0.5 is no overlap between arms, 1.0 is full overlap
w: float = 0.16, gap: float = BGM,
) -> tuple[ ) -> tuple[
np.ndarray, np.ndarray,
@ -622,7 +629,7 @@ class OHLCBarsFmtr(IncrementalFormatter):
array[:-1], array[:-1],
start, start,
bar_w=self.index_step_size, bar_w=self.index_step_size,
bar_gap=w * self.index_step_size, bar_gap=gap * self.index_step_size,
# XXX: don't ask, due to a ``numba`` bug.. # XXX: don't ask, due to a ``numba`` bug..
use_time_index=(self.index_field == 'time'), use_time_index=(self.index_field == 'time'),