Code

Epoch indexing and dataviz layer#451

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goodboy merged 96 commits intomasterpikers/piker:masterfrom epoch_indexing_and_dataviz_layerpikers/piker:epoch_indexing_and_dataviz_layerCopy head branch name to clipboardFeb 12, 2023

+2,962-2,403

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Commits on Feb 12, 2023

• Copy timestamps from source to FSP dest buffer

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• Rename Flow -> Viz

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• Rename .ui._flows.py -> .ui._render.py

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• Move ui._compression/._pathops to .data subpkg

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• Go back to hard-coded index field

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• Add breakpoint on -ve range for now

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• Make Viz.slice_from_time() take input array

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• Add Viz.bars_range() (moved from chart API)

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• Pepper render routines with time-slice calls

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• First attempt, field-index agnostic formatting

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• Simplify formatter update methodology

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• Attempt to make .default_view() time-index ready

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• Facepalm: pass correct flume to each FSP chart group..

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• Expect index_field: str in all graphics objects

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• Add Viz.index_field: str, pass to graphics objs

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• Fix .default_view() to view-left-of-data

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• Call Viz.bars_range() from display loop

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• Comment out bps for time indexing

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• Don't disable non-enabled vlm chart y-autoranging

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• Enable/disable vlm chart yranging (TO SQUASH)

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• Explicitly enable chart widget yranging in display init

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• Drop diff state tracking in formatter

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• Move path ops routines to top of mod

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• Fix from-time index slicing?

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• Look up "index field" in display cycles

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• Rename .ui._pathops.py -> `.ui._formatters.py

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• Move qpath-ops routines back to separate mod

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• Move (unused) path gen routines to .ui._pathops

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• Go with explicit .data._m4 mod name

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• Facepalm: actually return latest index on time slice fail..

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• Facepalm: put graphics cycle in do_ds: bool block..

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• Markup OHLC->path gen with numba issue #

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• Facepalm**2: fix array-read-slice, like actually..

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• Delegate formatter .index_field to the parent Viz

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• Drop index_field input to renders, add .read() profiling

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• Move Flume.slice_from_time() to .data._pathops mod func

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• Use step size to determine last datum bar gap

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• Use step size to determine bar gaps

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• Use index (time) step to calc OHLC bar/line uppx threshold

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• Rewrite slice_from_time() using numba

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• Adjust all slice_from_time() calls to not expect mask

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• Flip over to epoch-time based x-domain indexing

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• Make .default_view() time step aware

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• Use uniform step arithmetic in slice_from_time()

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• Drop _slice_from_time()

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• Drop old breakpoint

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• Drop Flume.view_data()

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• Add .x_last() meth to flow graphics

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• Add gap detection for stop_t, though only report atm

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• Re-implement .default_view() on Viz

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• Delegate to Viz.default_view() on chart

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• Draw last datums on boot

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• Implement stop_t gap adjustments; the good lord said it is the problem

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• Block out do_print stuff inside Viz.maxmin()

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• Add back .default_view() slice logic for int indexing

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• Drop passing render_data to Curve.draw_last_datum()

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• Slicec to an extra index around each timestamp input

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• Add some commented debug prints for default fmtr

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• Restore coord-cache resetting

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• Handle time-indexing for fill arrows

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• Fix formatter xy ndarray first prepend case

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• Right, do index lookup for int-index as well..

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• Drop unused read_src_from_key: bool to .format_to_1d()

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• Fix line -> bars on 6x UPPX

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• Move Viz layer to new .ui mod

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• Move DisplayState.incr_info() -> Viz

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• Add global i_step per overlay to DisplayState

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• Make LinearRegion link using epoch-time index

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• Ugh, use bool flag to determine index field..

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• Set path_arrays_from_ohlc(use_time_index=True) on epoch indexing

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• Viz._index_field a typing.Literal[str]

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• Adjust OHLC bar x-offsets to be time span matched

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• Add IncrementalFormatter.x_offset: np.ndarray

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• Align step curves the same as OHLC bars

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• Use array-int-indexing on single feed

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• Make Viz.incr_info() sample rate agnostic

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• Add ChartPlotWidget.main_viz: Viz convenience @property

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• Drop coordinate cacheing from BarItems, causes weird jitter on pan

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• Add type annots to vars inside Render.render()

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• Fix gap detection on RHS; always bin-search on overshot time range

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• Rename reset -> reset_cache

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• Make Viz.incr_info() do treading with time-index, and appending with array-index

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• Make .increment_view() take in a datums: int and always scale it by sample step size

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• Fix overlayed slow chart "treading"

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• Enable the experimental QPrivatePath functionality from latest pyqtgraph

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• Use np.diff() on last 16 samples instead of only last datum pair

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• Add commented append slice-len sanity check

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• Fix x-axis labelling when using an epoch domain

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• Fix history array name

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• Just-offset-from-arrow-marker on slow chart

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• Use left-style index search on RHS scan as well

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• Drop edge case from slice_from_time()

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• Further fixes Viz.default_view() and .index_step()

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• Drop ._index_step from formatters and instead defer to Viz.index_step()

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• Add a parent-type for graphics: FlowGraphic

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• Make FlowGraphic.x_last() be optionally None

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