Commit Graph

3625 Commits (72c97d4672e40642ae7b85eb960ea7e328b3ac29)

Author SHA1 Message Date
Tyler Goodlet 28bf8853aa Drop commented line from pq method copy/paste 2022-04-30 11:36:23 -04:00
Tyler Goodlet 86da64c2c2 Show baseline bars length on in view read < 6 2022-04-30 11:36:23 -04:00
Tyler Goodlet d59442e3b1 Bump up resolution log scaling a mag 2022-04-30 11:36:23 -04:00
Tyler Goodlet 5e161aa251 Always clear previous downsample curve on switch
Pretty sure this was most of the cause of the stale (more downsampled)
curves showing when zooming in and out from bars mode quickly. All this
stuff needs to get factored out into a new abstraction anyway, but
i think this get's mostly correct functionality.

Only draw new ds curve on uppx steps >= 4 and stop adding/removing
graphics objects from the scene; doesn't seem to speed anything up
afaict. Add better reporting of ds scale changes.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 9b2ec871a0 Clear ds line graphics on switch back to bars 2022-04-30 11:36:23 -04:00
Tyler Goodlet 2b12742992 More ems resiliency: discard broken client dialogs 2022-04-30 11:36:23 -04:00
Tyler Goodlet b262532fd4 Allocate m4 output arrays in `numba` code, avoid segfaults? 2022-04-30 11:36:23 -04:00
Tyler Goodlet 561d7e0349 Only clear/redraw curve on uppx diffs > 2
Only if the uppx increases by more then 2 we redraw the entire line
otherwise just ds with previous params and update the current curve.
This *should* avoid strange lower sample rate artefacts from showing on
updates.

Summary:
- stash both uppx and px width in `._dsi` (downsample info)
- use the new `ohlc_to_m4_line()` flags
- add notes about using `.reserve()` and friends
- always delete last `._array` ref prior to line updates
2022-04-30 11:36:23 -04:00
Tyler Goodlet 3a6c5a2fbd Try supporting reuse of path allocation 2022-04-30 11:36:23 -04:00
Tyler Goodlet 88a7314bd0 Add optional mxmn HL tracer support to m4 sampler 2022-04-30 11:36:23 -04:00
Tyler Goodlet 1abe513ecb Add our own `FastAppendCurve.clear()`, try mem reso
In an effort to try and make `QPainterPath.reserve()` work, add internal
logic to use the same object without de-allocating memory from
a previous path write/creation.

Note this required the addition of a `._redraw` flag (to be used in
`.clear()` and a small patch to `pyqtgraph.functions.arrayToQPath` to
allow passing in an existing path (thus reusing the same underlying mem
alloc) which will likely be first pushed to our fork.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 44f3a08ef1 Add optional uppx log scaling to m4 sampler
We were previously ad-hoc scaling up the px count/width to get more
detail at lower uppx values. Add a log scaling sigmoid that range scales
between 1 < px_width < 16.

Add in a flag to use the mxmn OH tracer in `ohlc_flatten()` if desired.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 03e0e3e76b Delegate to m4 ohlc helper for curve, only ds on uppx steps > 2 2022-04-30 11:36:23 -04:00
Tyler Goodlet 08f90c275c Add OHLC to m4 line converters
Helpers to quickly convert ohlc struct-array sequences into lines
for consumption by the m4 downsampler. Strip trailing zero entries
from the `ds_m4()` output if found (avoids lines back to origin).
2022-04-30 11:36:23 -04:00
Tyler Goodlet 7edfe68d4d M4 workin bishhhhh 2022-04-30 11:36:23 -04:00
Tyler Goodlet ff00993412 Call default view on symbol switch 2022-04-30 11:36:23 -04:00
Tyler Goodlet ed03d77e6e Make a derivs intrustment type table for alloc config checks 2022-04-30 11:36:23 -04:00
Tyler Goodlet 1a0e89d07e Even more correct "default view" snap-to-pp-marker
This makes the `'r'` hotkey snap the last bar to the middle of the pp
line arrow marker no matter the zoom level. Now we also boot with
approximately the most number of x units on screen that keep the bars
graphics drawn in full (just before downsampling to a line).

Moved some internals around to get this all in place,
- drop `_anchors.marker_right_points()` and move it to a chart method.
- change `.pre_l1_x()` -> `.pre_l1_xs()` and just have it return the
  two view-mapped x values from the former method.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 56c163cdd7 Make `ChartPlotWidget.default_view()` pin to L1
Instead of using a guess about how many x-indexes to reset the last
datum in-view to, calculate and shift the latest index such that it's
just before any L1 spread labels on the y-axis. This makes the view
placement "widget aware" and gives a much more cross-display UX.

Summary:
- add `ChartPlotWidget.pre_l1_x()` which returns a `tuple` of
  x view-coord points for the absolute x-pos and length of any L1
  line/labels
- make `.default_view()` only shift to see the xlast just outside
  the l1 but keep whatever view range xfirst as the first datum in view
- drop `LevelLine.right_point()` since this is now just a
  `.pre_l1_x()` call and can be retrieved from the line's internal chart
  ref
- drop `._style.bars_from/to_..` vars since we aren't using hard coded
  offsets any more
2022-04-30 11:36:23 -04:00
Tyler Goodlet c4242acc21 Pass in fqsn from chart UI components 2022-04-30 11:36:23 -04:00
Tyler Goodlet 772f871272 Use units by default for continuous futes 2022-04-30 11:36:23 -04:00
Tyler Goodlet 1ad83e4556 WIP add non-working m4 ds code to ohlc graphic 2022-04-30 11:36:23 -04:00
Tyler Goodlet bedb55b79d Use service cancel method for graceful teardown 2022-04-30 11:36:23 -04:00
Tyler Goodlet 03a08b5f63 Add curve px width getter
`ChartPlotWidget.curve_width_pxs()` now can be used to get the total
horizontal (x) pixels on screen that are occupied by the current curve
graphics for a given chart. This will be used for downsampling large
data sets to the pixel domain using M4.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 8f26335aea Add display loop profiling
Probably the best place to root the profiler since we can get a better
top down view of bottlenecks in the graphics stack.

More,
- add in draft M4 downsampling code (commented) after getting it mostly
  working; next step is to move this processing into an FSP subactor.
- always update the vlm chart last y-axis sticky
- set call `.default_view()` just before inf sleep on startup
2022-04-30 11:36:23 -04:00
Tyler Goodlet f1f257d4a2 Profiler format, code stretch 2022-04-30 11:36:23 -04:00
Tyler Goodlet d02b1a17ad Fix x-range -> # of frames calculation
Obviously determining the x-range from indices was wrong and was the
reason for the incorrect (downsampled) output size XD. Instead correctly
determine the x range and start value from the *values of* the input
x-array. Pretty sure this makes the implementation nearly production
ready.

Relates to #109
2022-04-30 11:36:23 -04:00
Tyler Goodlet 4d4f745918 Add `ChartPlotWidget.in_view()` shm-compatible array slicer 2022-04-30 11:36:23 -04:00
Tyler Goodlet 39b7c9340d Add (ostensibly) working first attempt at M4 algo
All the refs are in the comments and original sample code from infinite
has been reworked to expect the input x/y arrays to already be sliced
(though we can later support passing in the start-end indexes if
desired).

The new routines are `ds_m4()` the python top level API and `_m4()` the
fast `numba` implementation.
2022-04-30 11:36:23 -04:00
Tyler Goodlet e7481b1634 Array diff lengths must be int 2022-04-30 11:36:23 -04:00
Tyler Goodlet 09d95157dc Limit real-time chart updates in "big data" cases
- the chart's uppx (units-per-pixel) is > 4 (i.e. zoomed out a lot)
- don't shift the chart (to keep the most recent step in view) if the
  last datum isn't in view (aka the user is probably looking at history)
2022-04-30 11:36:23 -04:00
Tyler Goodlet ea5b8f1dd0 Only trigger downsampling on manual changes, add a uppx method 2022-04-30 11:36:23 -04:00
Tyler Goodlet 7e49b7c033 Add for a `BarItems` to display a line on high uppx
When a bars graphic is zoomed out enough you get a high uppx, datum
units-per-pixel, and there is no point in drawing the 6-lines in each
bar element-graphic if you can't see them on the screen/display device.

Instead here we offer converting to a `FastAppendCurve` which traces
the high-low outline and instead display that when it's impossible to see the
details of bars - approximately when the uppx >= 2.

There is also some draft-commented code in here for downsampling the
outlines as zoom level increases but it's not fully working and should
likely be factored out into a higher level api anyway.
2022-04-30 11:36:23 -04:00
Tyler Goodlet e7dc1a036b Original index offset was right 2022-04-30 11:36:23 -04:00
Tyler Goodlet ab8ea41b93 Add an ohlcv high/low tracer with optional downsampling 2022-04-30 11:36:23 -04:00
Tyler Goodlet dbe55ad4d2 Pass linked charts into `BarItems` so that graphics can be cycled on downsample 2022-04-30 11:36:23 -04:00
Tyler Goodlet d7a9928293 Move graphics compression routines to new module 2022-04-30 11:36:23 -04:00
Tyler Goodlet 02300efb59 Use 12Hz as default fps throttle 2022-04-30 11:36:23 -04:00
Tyler Goodlet 7c4e55ed2c Add comment on how to enable `pyqtgraph` profiling 2022-04-30 11:36:23 -04:00
Tyler Goodlet 7811508307 Add basic optional polyline support, draft out downsampling routine 2022-04-30 11:36:23 -04:00
Tyler Goodlet 7e853fe345 Add a downsampled line-curve support to `BarItems`
In effort to start getting some graphics speedups as detailed in #109,
this adds a `FastAppendCurve`to every `BarItems` as a `._ds_line` which
is only displayed (instead of the normal mult-line bars curve) when the
"width" of a bar is indistinguishable on screen from a line -> so once
the view coordinates map to > 2 pixels on the display device.
`BarItems.maybe_paint_line()` takes care of this scaling detection logic and is
called by the associated view's `.sigXRangeChanged` signal handler.
2022-04-30 11:36:23 -04:00
Tyler Goodlet 11f8c4f350 Add detailed `.addItem()`` comment 2022-04-30 11:36:23 -04:00
Tyler Goodlet 7577443f95 Add guard for real-time-not-active last line is `None` case 2022-04-30 11:36:23 -04:00
goodboy 01cc8f347e
Merge pull request #286 from pikers/wattygetlood-patch-1
update windows install instructions
2022-04-18 11:40:17 -04:00
wattygetlood 9eefc3a521
Update README.rst
added instructions for setting up visual studio code
2022-04-17 15:57:53 -04:00
goodboy 67cec4bc54
Merge pull request #304 from pikers/offline_history_loading
Offline history loading
2022-04-16 15:57:14 -04:00
Zoltan 34df818ed9
Merge pull request #300 from pikers/kraken_editorder
fix kraken bug, allow for live order edits
2022-04-16 15:04:55 -04:00
Konstantine Tsafatinos 773ed5e7ad update to merge syntax in submit_limit, fix non_master push mistake 2022-04-16 15:01:31 -04:00
Konstantine Tsafatinos 59434b9a8a refactor submit
_limit and expore the 'paper' like feature
2022-04-16 14:54:25 -04:00
Konstantine Tsafatinos 250d9cbc03 fix kraken bug, allow for live order edits 2022-04-16 14:38:03 -04:00