Resize volume yaxis to in view range
Tyler Goodlet
parent
9b7c8ed01b
commit
03ac7d075f
|
|
@ -101,7 +101,7 @@ async def update_chart_from_quotes(
|
|||
|
||||
last_bars_range = chart.bars_range()
|
||||
l, lbar, rbar, r = last_bars_range
|
||||
in_view = array[lbar - ifirst:rbar - ifirst]
|
||||
in_view = array[lbar - ifirst:rbar - ifirst + 1]
|
||||
|
||||
assert in_view.size
|
||||
|
||||
|
|
@ -112,11 +112,20 @@ async def update_chart_from_quotes(
|
|||
# sym = chart.name
|
||||
# mx, mn = np.nanmax(in_view[sym]), np.nanmin(in_view[sym])
|
||||
|
||||
return last_bars_range, mx, max(mn, 0)
|
||||
mx_vlm_in_view = 0
|
||||
if vlm_chart:
|
||||
mx_vlm_in_view = np.max(in_view['volume'])
|
||||
|
||||
return last_bars_range, mx, max(mn, 0), mx_vlm_in_view
|
||||
|
||||
chart.default_view()
|
||||
|
||||
last_bars_range, last_mx, last_mn = maxmin()
|
||||
(
|
||||
last_bars_range,
|
||||
last_mx,
|
||||
last_mn,
|
||||
last_mx_vlm,
|
||||
) = maxmin()
|
||||
|
||||
last, volume = ohlcv.array[-1][['close', 'volume']]
|
||||
|
||||
|
|
@ -139,7 +148,7 @@ async def update_chart_from_quotes(
|
|||
# present differently -> likely dark vlm
|
||||
|
||||
tick_size = chart.linked.symbol.tick_size
|
||||
tick_margin = 2 * tick_size
|
||||
tick_margin = 3 * tick_size
|
||||
|
||||
last_ask = last_bid = last_clear = time.time()
|
||||
chart.show()
|
||||
|
|
@ -155,6 +164,36 @@ async def update_chart_from_quotes(
|
|||
|
||||
now = time.time()
|
||||
|
||||
# brange, mx_in_view, mn_in_view = maxmin()
|
||||
(
|
||||
brange,
|
||||
mx_in_view,
|
||||
mn_in_view,
|
||||
mx_vlm_in_view,
|
||||
) = maxmin()
|
||||
l, lbar, rbar, r = brange
|
||||
mx = mx_in_view + tick_margin
|
||||
mn = mn_in_view - tick_margin
|
||||
|
||||
# NOTE: vlm may be written by the ``brokerd`` backend
|
||||
# event though a tick sample is not emitted.
|
||||
# TODO: show dark trades differently
|
||||
# https://github.com/pikers/piker/issues/116
|
||||
array = ohlcv.array
|
||||
|
||||
if vlm_chart:
|
||||
# print(f"volume: {end['volume']}")
|
||||
vlm_chart.update_curve_from_array('volume', array)
|
||||
vlm_sticky.update_from_data(*array[-1][['index', 'volume']])
|
||||
|
||||
if (
|
||||
mx_vlm_in_view != last_mx_vlm or
|
||||
mx_vlm_in_view > last_mx_vlm
|
||||
):
|
||||
# print(f'mx vlm: {last_mx_vlm} -> {mx_vlm_in_view}')
|
||||
vlm_chart._set_yrange(yrange=(0, mx_vlm_in_view * 1.375))
|
||||
last_mx_vlm = mx_vlm_in_view
|
||||
|
||||
for tick in quote.get('ticks', ()):
|
||||
|
||||
# log.info(
|
||||
|
|
@ -180,16 +219,13 @@ async def update_chart_from_quotes(
|
|||
# set time of last graphics update
|
||||
last_clear = now
|
||||
|
||||
array = ohlcv.array
|
||||
|
||||
# update price sticky(s)
|
||||
end = array[-1]
|
||||
last_price_sticky.update_from_data(
|
||||
*end[['index', 'close']]
|
||||
)
|
||||
|
||||
# plot bars
|
||||
# update price bar
|
||||
# update ohlc sampled price bars
|
||||
chart.update_ohlc_from_array(
|
||||
chart.name,
|
||||
array,
|
||||
|
|
@ -199,15 +235,6 @@ async def update_chart_from_quotes(
|
|||
# update vwap overlay line
|
||||
chart.update_curve_from_array('bar_wap', ohlcv.array)
|
||||
|
||||
# TODO: show dark trades differently
|
||||
# https://github.com/pikers/piker/issues/116
|
||||
if vlm_chart:
|
||||
# print(f"volume: {end['volume']}")
|
||||
vlm_chart.update_curve_from_array(
|
||||
'volume', ohlcv.array
|
||||
)
|
||||
vlm_sticky.update_from_data(*end[['index', 'volume']])
|
||||
|
||||
# l1 book events
|
||||
# throttle the book graphics updates at a lower rate
|
||||
# since they aren't as critical for a manual user
|
||||
|
|
@ -231,11 +258,6 @@ async def update_chart_from_quotes(
|
|||
# compute max and min trade values to display in view
|
||||
# TODO: we need a streaming minmax algorithm here, see
|
||||
# def above.
|
||||
brange, mx_in_view, mn_in_view = maxmin()
|
||||
l, lbar, rbar, r = brange
|
||||
|
||||
mx = mx_in_view + tick_margin
|
||||
mn = mn_in_view - tick_margin
|
||||
|
||||
# XXX: prettty sure this is correct?
|
||||
# if ticktype in ('trade', 'last'):
|
||||
|
|
@ -259,16 +281,14 @@ async def update_chart_from_quotes(
|
|||
elif ticktype in ('bid', 'bsize'):
|
||||
l1.bid_label.update_fields({'level': price, 'size': size})
|
||||
|
||||
# update min price in view to keep bid on screen
|
||||
mn = min(price - tick_margin, mn)
|
||||
# update max price in view to keep ask on screen
|
||||
# in view y-range checking for auto-scale
|
||||
# update the max/min price in view to keep bid/ask on screen
|
||||
mx = max(price + tick_margin, mx)
|
||||
|
||||
mn = min(price - tick_margin, mn)
|
||||
if (mx > last_mx) or (
|
||||
mn < last_mn
|
||||
):
|
||||
# print(f'new y range: {(mn, mx)}')
|
||||
|
||||
chart._set_yrange(
|
||||
yrange=(mn, mx),
|
||||
# TODO: we should probably scale
|
||||
|
|
|
|||
Loading…
Reference in New Issue