No-overlays, y-ranging optimizations
When the caller passes `do_overlay_scaling=False` we skip the given chart's `Viz` iteration loop, and set the yrange immediately, then continue to the next chart (if `do_linked_charts` is set) instead of a `continue` short circuit within the viz sub-loop. Deats: - add a `_maybe_calc_yrange()` helper which makes the `yranges` provided-or-not case logic more terse (factored). - add a `do_linked_charts=False` short circuit. - drop the legacy commented swing % calcs stuff. - use the `ChartView._viz` when `do_overlay_scaling=False` thus presuming that we want to handle the viz mapped to *this* view box. - add a `._yrange` "last set yrange" tracking var which keeps record of the last ymn/ymx value set in `._set_yrange()` BEFORE doing range margins; this will be used for incremental update in the display loop.log_linearized_curve_overlays
Tyler Goodlet
parent
3daee0caa9
commit
c57567ab0d
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@ -445,6 +445,7 @@ class ChartView(ViewBox):
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# TODO: probably just assign this whenever a new `PlotItem` is
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# allocated since they're 1to1 with views..
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self._viz: Viz | None = None
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self._yrange: tuple[float, float] | None = None
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def start_ic(
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self,
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@ -483,7 +484,7 @@ class ChartView(ViewBox):
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async def open_async_input_handler(
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self,
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) -> 'ChartView':
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) -> ChartView:
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async with (
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_event.open_handlers(
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@ -785,7 +786,7 @@ class ChartView(ViewBox):
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# NOTE: this value pairs (more or less) with L1 label text
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# height offset from from the bid/ask lines.
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range_margin: float | None = 0.09,
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range_margin: float | None = 0.1,
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bars_range: Optional[tuple[int, int, int, int]] = None,
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@ -858,6 +859,11 @@ class ChartView(ViewBox):
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ylow, yhigh = yrange
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# always stash last range for diffing by
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# incremental update calculations BEFORE adding
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# margin.
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self._yrange = ylow, yhigh
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# view margins: stay within a % of the "true range"
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if range_margin is not None:
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diff = yhigh - ylow
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@ -870,10 +876,6 @@ class ChartView(ViewBox):
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yhigh * (1 + range_margin),
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)
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# XXX: this often needs to be unset
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# to get different view modes to operate
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# correctly!
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# print(
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# f'set limits {self.name}:\n'
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# f'ylow: {ylow}\n'
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@ -975,7 +977,6 @@ class ChartView(ViewBox):
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# ms_threshold=4,
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)
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chart = self._chart
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linked = self.linked
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if (
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do_linked_charts
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@ -983,7 +984,9 @@ class ChartView(ViewBox):
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):
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plots = {linked.chart.name: linked.chart}
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plots |= linked.subplots
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else:
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chart = self._chart
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plots = {chart.name: chart}
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# TODO: a faster single-loop-iterator way of doing this?
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@ -1031,42 +1034,45 @@ class ChartView(ViewBox):
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] = {}
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major_in_view: np.ndarray = None
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# ONLY auto-yrange the viz mapped to THIS view box
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if not do_overlay_scaling:
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viz = self._viz
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if debug_print:
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print(f'ONLY ranging THIS viz: {viz.name}')
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out = _maybe_calc_yrange(
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viz,
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yranges,
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profiler,
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chart_name,
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)
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if out is None:
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continue
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read_slc, yrange = out
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viz.plot.vb._set_yrange(yrange=yrange)
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profiler(f'{viz.name}@{chart_name} single curve yrange')
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# don't iterate overlays, just move to next chart
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continue
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for name, viz in chart._vizs.items():
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if debug_print:
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print(
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f'UX GRAPHICS CYCLE: {viz.name}@{chart_name}'
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)
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if not viz.render:
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# print(f'skipping {flow.name}')
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continue
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# pass in no array which will read and render from the last
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# passed array (normally provided by the display loop.)
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in_view, i_read_range, _ = viz.update_graphics()
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if not in_view:
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continue
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profiler(f'{viz.name}@{chart_name} `Viz.update_graphics()`')
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yrange = yranges.get(viz) if yranges else None
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if yrange is not None:
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# print(f'INPUT {viz.name} yrange: {yrange}')
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read_slc = slice(*i_read_range)
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else:
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out = viz.maxmin(i_read_range=i_read_range)
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out = _maybe_calc_yrange(
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viz,
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yranges,
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profiler,
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chart_name,
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)
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if out is None:
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log.warning(f'No yrange provided for {name}!?')
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return
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(
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_, # ixrng,
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read_slc,
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yrange
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) = out
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profiler(f'{viz.name}@{chart_name} `Viz.maxmin()`')
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continue
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read_slc, yrange = out
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pi = viz.plot
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# handle multiple graphics-objs per viewbox cases
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@ -1091,9 +1097,6 @@ class ChartView(ViewBox):
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ymn, ymx = yrange
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# print(f'adding {viz.name} to overlay')
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if not do_overlay_scaling:
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continue
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# determine start datum in view
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arr = viz.shm.array
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in_view = arr[read_slc]
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@ -1132,24 +1135,6 @@ class ChartView(ViewBox):
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major_in_view = in_view
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profiler(f'{viz.name}@{chart_name} set new major')
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# compute directional (up/down) y-range % swing/dispersion
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# y_ref = y_med
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# up_rng = (ymx - y_ref) / y_ref
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# down_rng = (ymn - y_ref) / y_ref
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# mx_up_rng = max(mx_up_rng, up_rng)
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# mn_down_rng = min(mn_down_rng, down_rng)
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# print(
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# f'{viz.name}@{chart_name} group mxmn calc\n'
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# '--------------------\n'
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# f'y_start: {y_start}\n'
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# f'ymn: {ymn}\n'
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# f'ymx: {ymx}\n'
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# f'mx_disp: {mx_disp}\n'
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# f'up %: {up_rng * 100}\n'
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# f'down %: {down_rng * 100}\n'
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# f'mx up %: {mx_up_rng * 100}\n'
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# f'mn down %: {mn_down_rng * 100}\n'
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# )
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profiler(f'{viz.name}@{chart_name} MINOR curve scale')
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# non-overlay group case
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@ -1165,21 +1150,32 @@ class ChartView(ViewBox):
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# thus a single viz/overlay) then we ONLY set the lone
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# chart's (viz) yrange and short circuit to the next chart
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# in the linked charts sequence.
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if (
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not do_overlay_scaling
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or len(overlay_table) < 2
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len(overlay_table) < 2
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or not overlay_table
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):
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if debug_print:
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print(f'ONLY ranging major: {viz.name}')
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# we're either in `do_overlay_scaling=False` mode
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# or there is only one curve so we need to pick
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# that "only curve".
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if not major_viz:
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major_viz = viz
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if yranges is not None:
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yrange = yranges.get(major_viz) or yrange
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assert yrange
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print(f'ONLY ranging major: {viz.name}')
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major_viz.plot.vb._set_yrange(
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yrange=yrange,
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)
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profiler(f'{viz.name}@{chart_name} single curve yrange')
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if not do_linked_charts:
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return
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continue
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profiler(f'<{chart_name}>.interact_graphics_cycle({name})')
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@ -1192,7 +1188,6 @@ class ChartView(ViewBox):
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y_start,
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y_min,
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y_max,
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# y_med,
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read_slc,
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minor_in_view,
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)
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@ -1400,3 +1395,49 @@ class ChartView(ViewBox):
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# breakpoint()
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profiler.finish()
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def _maybe_calc_yrange(
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viz: Viz,
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yranges: dict[Viz, tuple[float, float]],
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profiler: Profiler,
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chart_name: str,
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) -> tuple[slice, tuple[float, float]] | None:
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if not viz.render:
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return
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# # print(f'skipping {flow.name}')
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# continue
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# pass in no array which will read and render from the last
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# passed array (normally provided by the display loop.)
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in_view, i_read_range, _ = viz.update_graphics()
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if not in_view:
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return
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# continue
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profiler(f'{viz.name}@{chart_name} `Viz.update_graphics()`')
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# check if explicit yranges were passed in by the caller
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yrange = yranges.get(viz) if yranges else None
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if yrange is not None:
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read_slc = slice(*i_read_range)
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else:
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out = viz.maxmin(i_read_range=i_read_range)
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if out is None:
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log.warning(f'No yrange provided for {viz.name}!?')
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return
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(
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_, # ixrng,
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read_slc,
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yrange
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) = out
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profiler(f'{viz.name}@{chart_name} `Viz.maxmin()`')
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return (
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read_slc,
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yrange,
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)
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