Handle vwap overlay with shm
parent
8a4528c006
commit
d4eb5ccca4
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@ -379,7 +379,7 @@ class ChartPlotWidget(pg.PlotWidget):
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def update(index: int) -> None:
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def update(index: int) -> None:
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label.setText(
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label.setText(
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"{name}[{index}] -> O:{} H:{} L:{} C:{} V:{}".format(
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"{name}[{index}] -> O:{} H:{} L:{} C:{} V:{}".format(
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*self._array[index].item()[2:],
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*self._array[index].item()[2:8],
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name=name,
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name=name,
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index=index,
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index=index,
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)
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)
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@ -423,9 +423,6 @@ class ChartPlotWidget(pg.PlotWidget):
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self.addItem(curve)
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self.addItem(curve)
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# register overlay curve with name
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# register overlay curve with name
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if not self._graphics and name is None:
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name = 'a_stupid_line_bby'
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self._graphics[name] = curve
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self._graphics[name] = curve
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# XXX: How to stack labels vertically?
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# XXX: How to stack labels vertically?
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@ -485,7 +482,8 @@ class ChartPlotWidget(pg.PlotWidget):
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array: np.ndarray,
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array: np.ndarray,
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**kwargs,
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**kwargs,
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) -> pg.GraphicsObject:
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) -> pg.GraphicsObject:
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self._array = array
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if name not in self._overlays:
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self._array = array
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graphics = self._graphics[name]
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graphics = self._graphics[name]
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graphics.update_from_array(array, **kwargs)
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graphics.update_from_array(array, **kwargs)
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@ -712,10 +710,7 @@ async def chart_from_quotes(
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last_price_sticky.update_from_data(*last[['index', 'close']])
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last_price_sticky.update_from_data(*last[['index', 'close']])
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chart._set_yrange()
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chart._set_yrange()
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vwap = quote.get('vwap')
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if vwap_in_history:
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if vwap and vwap_in_history:
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last['vwap'] = vwap
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print(f"vwap: {quote['vwap']}")
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# update vwap overlay line
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# update vwap overlay line
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chart.update_from_array('vwap', ohlcv.array['vwap'])
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chart.update_from_array('vwap', ohlcv.array['vwap'])
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