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update main session marker

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This commit is contained in:
David Brazda
2024-10-04 13:52:32 +02:00
parent 0da6839bcb
commit 8b9f3ad61f
2 changed files with 20 additions and 6 deletions
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20
lightweight_charts/helpers.py
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@ -59,6 +59,7 @@ class PlotSRAccessor:
def plot(self, **kwargs): def plot(self, **kwargs):
if "size" not in kwargs: if "size" not in kwargs:
kwargs["size"] = "xs" kwargs["size"] = "xs"
name = kwargs["name"] if "name" in kwargs else "line"
ohlcv = () ohlcv = ()
right = [] right = []
@ -71,7 +72,7 @@ class PlotSRAccessor:
#ohlcv is returned as it is tuple thus immutable #ohlcv is returned as it is tuple thus immutable
ohlcv = extend_kwargs(ohlcv, right, left, middle1, middle2, histogram, kwargs) ohlcv = extend_kwargs(ohlcv, right, left, middle1, middle2, histogram, kwargs)
right.append((self._obj,"line")) right.append((self._obj,name))
pane1 = Panel( pane1 = Panel(
ohlcv=ohlcv, ohlcv=ohlcv,
@ -269,7 +270,7 @@ class Panel:
self.precision = precision self.precision = precision
def chart(panes: list[Panel], sync=False, title='', size="m", xloc=None, session: str="9:30:00, 09:30:05", precision=None, **kwargs): def chart(panes: list[Panel], sync=False, title='', size="m", xloc=None, session = slice("09:30:00","9:30:05"), precision=None, **kwargs):
""" """
Function to fast render a chart with multiple panes. This function manipulates graphical Function to fast render a chart with multiple panes. This function manipulates graphical
output or interfaces with an external framework to display charts with synchronized output or interfaces with an external framework to display charts with synchronized
@ -447,8 +448,21 @@ def chart(panes: list[Panel], sync=False, title='', size="m", xloc=None, session
active_chart.legend(True) active_chart.legend(True)
active_chart.fit() active_chart.fit()
if session is not None and session: if session is not None and session:
try:
last_used_series = output_series if is_vbt_indicator(series) else series #pokud byl posledni series vbt, pak pouzijeme jeho outputy last_used_series = output_series if is_vbt_indicator(series) else series #pokud byl posledni series vbt, pak pouzijeme jeho outputy
active_chart.vertical_span(start_time=xloc_me(last_used_series, xloc).vbt.xloc[session].obj.index.to_list(), color="rgba(252, 255, 187, 0.42)") t1 = xloc_me(last_used_series, xloc)
t1 = t1.vbt.xloc[session]
target_data = t1.obj
#we dont know the exact time of market start +- 3 seconds thus we find mark first row after 9:30
# Resample the data to daily frequency and get the first entry of each day
first_row_indexes = target_data.resample('D').apply(lambda x: x.index[0])
# Convert the indexes to a list
session_starts = first_row_indexes.to_list()
active_chart.vertical_span(start_time=session_starts, color="rgba(252, 255, 187, 0.42)")
except Exception as e:
print("Error fetching main session")
if not main_title_set: if not main_title_set:
chartX.topbar.textbox("title",title) chartX.topbar.textbox("title",title)

2
setup.py
View File

@ -5,7 +5,7 @@ with open('README.md', 'r', encoding='utf-8') as f:
setup( setup(
name='lightweight_charts', name='lightweight_charts',
version='2.2.0', version='2.2.1',
packages=find_packages(), packages=find_packages(),
python_requires='>=3.8', python_requires='>=3.8',
install_requires=[ install_requires=[