Add vlm axis titles and humanized $vlm y-range
Tyler Goodlet
parent
e8cad45952
commit
56f9ddb880
139
piker/ui/_fsp.py
139
piker/ui/_fsp.py
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@ -33,7 +33,9 @@ import pyqtgraph as pg
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import trio
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from trio_typing import TaskStatus
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from ._axes import PriceAxis
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from .._cacheables import maybe_open_context
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from ..calc import humanize
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from ..data._sharedmem import (
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ShmArray,
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maybe_open_shm_array,
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@ -661,73 +663,98 @@ async def open_vlm_displays(
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# size view to data once at outset
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chart.view._set_yrange()
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if not dvlm:
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return
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# add axis title
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axis = chart.getAxis('right')
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axis.set_title(' vlm')
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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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'dolla_vlm',
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# linked.symbol.front_feed(), # data-feed symbol key
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{ # fsp engine conf
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'func_name': 'dolla_vlm',
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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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if dvlm:
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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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'dolla_vlm',
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# linked.symbol.front_feed(), # data-feed symbol key
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{ # fsp engine conf
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'func_name': 'dolla_vlm',
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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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},
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# loglevel,
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)
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# profiler(f'created shm for fsp actor: {display_name}')
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# loglevel,
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)
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# profiler(f'created shm for fsp actor: {display_name}')
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await started.wait()
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await started.wait()
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pi = chart.overlay_plotitem(
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'dolla_vlm',
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)
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# add custom auto range handler
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pi.vb._maxmin = partial(maxmin, name='dolla_vlm')
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pi = chart.overlay_plotitem(
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'dolla_vlm',
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axis_kwargs={
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# 'humanize': True,
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# 'text': 'dvlm',
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'typical_max_str': ' 99.9 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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},
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curve, _ = chart.draw_curve(
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)
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name='dolla_vlm',
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data=shm.array,
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# add axis title
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raxis = pi.getAxis('right')
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raxis.set_title(' $vlm', view=pi.getViewBox())
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array_key='dolla_vlm',
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overlay=pi,
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color='charcoal',
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step_mode=True,
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# **conf.get('chart_kwargs', {})
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)
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# TODO: is there a way to "sync" the dual axes such that only
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# one curve is needed?
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# curve.hide()
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# add custom auto range handler
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pi.vb._maxmin = partial(maxmin, name='dolla_vlm')
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# TODO: we need a better API to do this..
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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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curve, _ = chart.draw_curve(
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# XXX: old dict-style config before it was moved into the 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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name='dolla_vlm',
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data=shm.array,
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# }
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array_key='dolla_vlm',
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overlay=pi,
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color='charcoal',
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step_mode=True,
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# **conf.get('chart_kwargs', {})
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)
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# TODO: is there a way to "sync" the dual axes such that only
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# one curve is needed?
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# curve.hide()
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# TODO: we need a better API to do this..
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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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# 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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# }
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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 display_name, conf in {
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