Plot the vlm rate (per min) taken verbatim from ib
Tyler Goodlet
parent
97c2f86092
commit
0b5250d5e3
121
piker/ui/_fsp.py
121
piker/ui/_fsp.py
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@ -50,8 +50,13 @@ from ._forms import (
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)
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from ..fsp._api import maybe_mk_fsp_shm, Fsp
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from ..fsp import cascade
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from ..fsp._volume import tina_vwap, dolla_vlm
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from ..fsp._volume import (
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tina_vwap,
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dolla_vlm,
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flow_rates,
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)
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from ..log import get_logger
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from ._style import hcolor
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log = get_logger(__name__)
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@ -440,7 +445,7 @@ class FspAdmin:
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# allocate an output shm array
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dst_shm, opened = maybe_mk_fsp_shm(
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fqsn,
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'.'.join(fqsn),
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target=target,
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readonly=True,
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)
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@ -648,8 +653,9 @@ async def open_vlm_displays(
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if dvlm:
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tasks_ready = []
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# spawn and overlay $ vlm on the same subchart
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shm, started = await admin.start_engine_task(
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dvlm_shm, started = await admin.start_engine_task(
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dolla_vlm,
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{ # fsp engine conf
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@ -663,11 +669,36 @@ async def open_vlm_displays(
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},
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# loglevel,
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)
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tasks_ready.append(started)
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# FIXME: we should error on starting the same fsp right
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# since it might collide with existing shm.. or wait we
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# had this before??
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# dolla_vlm,
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# spawn and overlay $ vlm on the same subchart
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fr_shm, started = await admin.start_engine_task(
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flow_rates,
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{ # fsp engine conf
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'func_name': 'flow_rates',
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# 'zero_on_step': True,
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# 'params': {
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# 'price_func': {
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# 'default_value': 'chl3',
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# },
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# },
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},
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# loglevel,
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)
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tasks_ready.append(started)
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# profiler(f'created shm for fsp actor: {display_name}')
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await started.wait()
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# wait for all engine tasks to startup
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async with trio.open_nursery() as n:
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for event in tasks_ready:
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n.start_soon(event.wait)
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pi = chart.overlay_plotitem(
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dvlm_pi = chart.overlay_plotitem(
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'dolla_vlm',
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index=0, # place axis on inside (nearest to chart)
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axis_title=' $vlm',
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@ -683,7 +714,7 @@ async def open_vlm_displays(
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)
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# add custom auto range handler
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pi.vb._maxmin = partial(
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dvlm_pi.vb._maxmin = partial(
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maxmin,
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# keep both regular and dark vlm in view
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names=['dolla_vlm', 'dark_vlm'],
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@ -691,9 +722,9 @@ async def open_vlm_displays(
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curve, _ = chart.draw_curve(
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name='dolla_vlm',
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data=shm.array,
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data=dvlm_shm.array,
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array_key='dolla_vlm',
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overlay=pi,
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overlay=dvlm_pi,
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step_mode=True,
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# **conf.get('chart_kwargs', {})
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)
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@ -708,44 +739,64 @@ async def open_vlm_displays(
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# specially store ref to shm for lookup in display loop
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# since only a placeholder of `None` is entered in
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# ``.draw_curve()``.
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chart._overlays['dolla_vlm'] = shm
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chart._overlays['dolla_vlm'] = dvlm_shm
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curve, _ = chart.draw_curve(
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name='dark_vlm',
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data=shm.array,
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data=dvlm_shm.array,
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array_key='dark_vlm',
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overlay=pi,
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overlay=dvlm_pi,
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color='charcoal', # darker theme hue
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step_mode=True,
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# **conf.get('chart_kwargs', {})
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)
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chart._overlays['dark_vlm'] = shm
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# XXX: old dict-style config before it was moved into the
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# helper task
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# 'dolla_vlm': {
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# 'func_name': 'dolla_vlm',
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# 'zero_on_step': True,
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# 'overlay': 'volume',
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# 'separate_axes': True,
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# 'params': {
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# 'price_func': {
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# 'default_value': 'chl3',
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# # tell target ``Edit`` widget to not allow
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# # edits for now.
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# 'widget_kwargs': {'readonly': True},
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# },
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# },
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# 'chart_kwargs': {'step_mode': True}
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# },
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chart._overlays['dark_vlm'] = dvlm_shm
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# }
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# add flow rate curves
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rate_color = 'default_light'
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fr_pi = chart.overlay_plotitem(
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'flow_rates',
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index=0, # place axis on inside (nearest to chart)
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axis_title=' vlm/m',
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axis_side='left',
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axis_kwargs={
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'typical_max_str': ' 100.0 M ',
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'formatter': partial(
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humanize,
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digits=2,
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),
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# 'textPen': pg.mkPen(hcolor(vlmr_color)),
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'text_color': rate_color,
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},
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for name, axis_info in pi.axes.items():
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# lol this sux XD
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axis = axis_info['item']
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if isinstance(axis, PriceAxis):
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axis.size_to_values()
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)
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# add custom auto range handler
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fr_pi.vb._maxmin = partial(
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maxmin,
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# keep both regular and dark vlm in view
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names=[
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# '1m_trade_rate',
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'1m_vlm_rate',
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],
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)
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curve, _ = chart.draw_curve(
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name='1m_vlm_rate',
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data=fr_shm.array,
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array_key='1m_vlm_rate',
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overlay=fr_pi,
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color=rate_color,
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# **conf.get('chart_kwargs', {})
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)
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chart._overlays['1m_vlm_rate'] = fr_shm
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for pi in (dvlm_pi, fr_pi):
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for name, axis_info in pi.axes.items():
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# lol this sux XD
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axis = axis_info['item']
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if isinstance(axis, PriceAxis):
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axis.size_to_values()
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# built-in vlm fsps
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for target, conf in {
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