These are the recent changes for SciChart.JS since 2.1. Release notes for older versions can be found at SciChart.js News and Releases
Two small but important fixes.
(0,10) is no longer a magic range that would cause autoRange: once to fire.
SCJS-1722 Charts with startup animations no longer display one frame of the final state at the start
Just a few little fixes and improvements in this release. Lots going on behind the scenes.
SJCS-1724 Fix crash with spline series if created with no data
SCJS-1715 Fix error if CursorModifier is used with a hitTestRadius on a heatmap
SCJS-1677 SciChartVerticalGroup now copies layoutStrategies when adding a surface, stopping it from overwriting custom strategies.
We are now publishing .mjs versions of the bundled version of scichart.js if you want to use it with ESM. This is somewhat experimental at the moment but we are working towards using this for pure js versions of our examples. You can get this via CDN using https://cdn.jsdelivr.net/npm/[email protected]/index.min.mjs
Experimental - bundle files built as ESM modules
Fix a potential error when navigating away from a page with a pie chart
Fixed a licensing issue where multiple wilddard domains were not handled properly
As well as some bug fixes, this release contains some low level features that allow for precise control of when a chart is drawn. Setting createSuspended: true in the surface options will cause the chart to be created in a suspended state where it will not automatically render. You can then await scichartSurface.nextStateRender which will resolve once the chart is fully drawn, which depending on the configuration may involve several frame renders. We have done this to improve the performance of our visual tests, but there are some other potential uses which we will show examples of soon.
We have also added a significant number of performance monitoring points, using the Web Performance API, to aid in identifying performance bottlenecks. Check out the PerformanceDebugHelper class for details.
More licensing flexibility for applications using IP addresses as host name
SCJS-1718 fix crash when using paletteProvider with spline series
SCJS-1717 Rollover and Cursor modifiers using modifierGroup did not work correctly with subcharts
rendered event now fires once chart image is copied to target canvas, so performance measurements based on prerender to rendered are more accurate
PerformanceDebugHelper and performance monitoring points
createSuspended option on SciChartSurface and nextStateRender to enable callbacks on first chart draw
Important release. Please update.
This release fixes an critical licensing issue affecting any application deployed with a 3.2 version of SciChart. All users need to update.
SCJS-1710 Fixed 6 month community expiry prevents runtime key being applied
Small release mainly to fix a bug with rollover/hittest when using FIFO sweeping mode.
We are starting a process of trying to reduce the webassembly data file size. Minor changes initially, but expect significant improvements in v4 coming soonish.
Removed some unnecessary assets from data file
SCJS 1596 expose dataSeries.FindIndex and fix some minor bugs there.
SCJS 1701 - HitTest is wrong for fifo sweeping
This release fixes the issue with candlestick charts crashing on Safari (due to a Safari quirk which we managed to work around).
Modifiers with multiple subcharts are now slightly easier thanks to isActiveSubChartEvent
DefaultPaletteProvider still had shouldUpdatePalette false. Default false until v4
Js/scjs 1628 Fixed candlestick charts crashing on safari
Added isActiveSubChartEvent flag to ModifierMouseArgs usefull for sub charts with a modifierGroup
Auto cleanup subscriptions in DataPointSelectionModifier
SCRTDoubleVector does not push_pack correctly for capacity 1
A final release for this year to fix a performance edge case and also to make the default behaviour of PaletteProvider consistent with what it was before the change in 5.3.8, which is to recalculate the palette on every render. To get the performance benefit of reuse on a static palette you need to add the shouldUpdatePalette method to your PaletteProvider and return false if the palette can be reused. We will be changing this default in version 4 to reuse if at all possible.
PaletteProvider now defaults to always recalculate for back compatability.
SCJS-1685 Improve performance when series is panned out of view
As well as some more fixes, this release includes the new RenderDataTransforms. This is a low level api that allows you to transform your data just before it is drawn. SciChart currently uses it to do spline interpolation, but it has the potential to support all kinds of cool features, like changing the color of a line between data points (by adding extra geometry), and applying multiple different line styles and pointMarkers to a single series. Expect more documentation, demos and features using this in 2024.
The PaletteProvider api has also been improved. Palettes can now be reused, with a property (isRangeIndependant) and a function (shouldUpdatePalette) to control when palette recalculation should occur. You can now even take full control of the palette by implementing IAdvancedPaletteProvider, which gives you a single function call for all the data rather than a call per point.
Added RenderDataTransform api and used it for spline series
Allow palettes to be reused if nothing has changed
Added isRangeIndependant and shouldUpdatePalette to IPaletteProvider to control palette reuse
New IAdvancedPaletteProvider interface. This is a single method called instead of the per-point overrides. Its parameters give you access to the full data and palette
SCJS-1768 Added yRangeMode property to renderableSeries and set the default on this to revert to previous behaviour where the points just outside the visibleRange will be included in autoRange. This fixes issues where digital lines were escaping the axis when used on stacked axes.
SCJS-1683 Annotation coordinateMode Relative now works correctly on a stacked axis
SCJS-1682 Fixed hitTest could be offset when using CategoryAxis
Fixes for recently reported bugs and a new demo. Check out Draggable Event Markers
SCJS-1669 Make rollover work for stacked charts with multiple axes
SCJS-1670 Fix digital line being interpolated at the left edge of the chart
SCJS-1673 Fix errors if a RolloverModifier is removed and readded
SCJS-1764 VerticalSliceModifier should not be able to be dragged off the chart
Add showAxisLabel property for rollover and vertical slice
Minor update with bug fixes published to npm
SCJS-1527 Fix setting series.isVisible does not update legend visibility checkbox
Fix TypeScript Content Security Policy (CSP) style-arc error for RubberBandZoomModifier
Remove a console.log
Bugfixes, performance improvements and a few little features.
SCJS-1661 background and padding for TextAnnotation
SCJS-1655 shadowEffectColor on theme now applies to tooltips. To set indivdually use tooltipShadow for CursorModifier or renderableSeries.rolloverModifierProps.shadowColor for RolloverModifier AFTER the modifier has been added
SCJS-1660 Improve tooltip performacne and positioning with many series
SCJS-1278 Rename useWasmFromCDN to loadWasmFromCDN to avoid eslint errors
SCJS-1612 Fix Rollover tooltip positioning for vertical charts
Subcharts do not receive mousemove events when cursor is off the chart
Some quick fixes for issues reported on our forums.
SCJS-1656 fix External Legend positioning
SCJS-1657 DataLabels do not show properly for resampled data in some cases
axisTitleStyle option type should include rotation
A couple of small axis features in this release. We've also been working on a big new demo showcasing multiple synchronised charts called the Server Traffic Dashboard
SCJS-1637 cliptoYRange on renderableSeries allowing clipping to vertically stacked axis range
SCJS-1629 Add isStaticAxis property to axis which causes the labels and major gridlines to keep their initial positions when the visible range changes
SCJS-1634 SciChartVerticalGroup now synchronises axis widths
removed some unnecessary memory warnings
labelRadiusAdjustment should be a constructor option for SciChartPieSurface
SCJS-1633 Fix log axis slows the chart badly when zoomed far in
Fix datalabels not displaying when pointGap is 0, ie for single point, or vertically aligned data
SciChart.JS now supports running in secure contexts using the "Content-Security-Policy" header set to "wasm-unsafe-eval"
Content-Security-Policy header wasm-unsafe-eval now fully supported
Clarified documentation on Observable.asArray
Legend appeared offset when using vertically stacked subcharts
Cursor tooltip not showing correctly for unsorted scatter data if hitTestRadius 0
See the demo of the new VerticalSliceModifier at demo.scichart.com/javascript-chart-vertical-slice-modifier
New Feature - VerticalSliceModifier. Looks like the RolloverModifier, but programatically placed at a particular data or pixel position
Handle cases where pie segments have 0 value
fix OHLC data series serialization
SCJS-1603 Add remove method to Vertical Group and automatically remove surface from group when it is deleted
SCJS-1602 Mark all series unhovered when cursor leaves the seriesViewRect
SCJS-1601 Toggling axis.isVisible no longer breaks labels
SCJS-1548 Fix Data Series serialization. Improvements to NaN/null handling and metadata
SCJS-1611 Fix rollover error if invisible series is made visible
Fix parseColorToHexStringArgb with zero opacity override
This release (hopefully) marks the completion of changes required to enable SciChart.JS to be used with TypeScript strict mode enabled.
SCJS-1604 isEnabled for DataLabelProviders
SCJS-1608 Fix datalabels not showing for single point
SCJS-1609 Fix datalabels not generating properly with vertical chart
SCJS-1605 Fix Rollover could not find registered tooltip template
Fix Insert for XyText inserted text in the wrong place
Fixed type mismatch in getters and setters allowing for strict mode
SCJS-1958 Fix palette not indexed correctly when zoom/pan a mountain or band series
Progress on strict mode support
Fix types mismatch in getters and setters
Now that we have optional automatic webassembly disposal, deleting and creating a new chart could result in the creation of a new webassembly context. These fixes ean this will automatically get the license applied.
Make extra sure that the license will be applied if a new wasmcontext is being created
Fix license not reapplied if wasmcontext has been disposed
In 3.2 by default we clip the data that is sent to be drawn to what is actually visible. In some edge cases this might lead to undesired behaviour, so we've added axis.clipToXRange which allows you to disable this.
SCJS-1579 clipToXRange property to allow for disabling the new clipping to visibleRange for x axis
SCJS-1592 Partial fix for ring around pointmarkers with paletteProvider
SCJS-1591 AutoRange should use acutally visible data
Remove unnecessary logging
Minor update v3.2 included a large number of improvements & fixes. Find out more at the release note here.
Community Licensing! Free for non-commercial use
Added DataSeries FIFO (First in-First out) mode
Added DataSeries FIFO Sweeping mode for wrap-around charts
Initialize DataSeries with Capacity
PointMarker - draw lastPointOnly mode
Memory leak debugging tools
Optional delete on clear/remove from collections
Allow configuring WebGL Buffer sizes in low-memory environments
3D Point Line RenderableSeriers Chart
3D Tooltips via TooltipModifier3D
3D Pinch to Zoom functionality
New Custom Manual Legend control
Allow annotations below gridlines
Example: JavaScript 3D Point Line Chart
Example: Quadrant Chart using Background Annotations
Example: Interactive Waterfall Spectrogram Demo
Example: Dynamic Layout demo
Example: Realtime Surface Mesh 3D Chart Demo
Updated to Emscripten EMSDK 3.1 and Clang 17
2D/3D Touch Interaction
Faster Wasm Module Initialization
Allow rotating axis titles
Output build stamp diff in case of mismatch
Multiple Documentation improvements
Replaced getElementById with querySelector alternative for better support; allows ids generated by useId React hook
SCJS-1512 Can’t draw a line series on category axis with 2 points
SCJS-1496 Crash on ZoomExtents over axis with IsAnimated false
SCJS-1478 Autorange gives unexpected values when one series has constant values
SCJS-1302 Bug of Chart Overview when CTRL + A
SCJS-1499 Constructor option for DataSeriesName on 3D DataSeries is ignored
SCJS-1480 Rollover Tooltips don’t display outside the range of stacked axis
SCJS-1518 Drop full dependency on TypeScript, leaving only Dev dependency
SCJS-1483 Changing PointMarker in 3D Charts does not update the chart
Fix draw error on fifo band series
SCJS-1113 Fixed UniformHeatmapRenderableSeries not updating if xStep, xStart, yStep, yStart changed
SCJS-866 PinchZoomModifier eats mouse events if it is added before other modifiers
Fix subcharts error when resizing too fast
SCJS-1519 DataSeries.removeRange doesn’t resize native indexes
This was a prerelease
Fix fifo for BandSeries
Fix SplineBandseries
Prevent double deletion of Legend
SCJS-1576 fix DateTimeDeltaCalculator infinite recursion with some values
Fix calculation of startIndex when drawing.
Minor update v3.1 included a large number of improvements & fixes. Find out more at the release note here.
Updated 60+ documentation pages to include Builder API and codepen embeds
Updated all demos to include contextual documentation and codesandbox links
“Just Works” (no license required) for sandbox sites
Added global exports for npm, index.min.js
Added a ChartTitle property to SciChartSurface
CustomChartModifier, CustomChartModifier3D type
Performance Boost of 50-100% when calling dataSeries.appendRange
Performance Boost by enabling WebGL Axis Titles when useNativeText is enabled
Performance Boost by Caching Axis Title rendering
SCJS-1453 Text Annotation Adorners size issue in Firefox
SCJS-1451 dragStarted event occurs when an Annotation is deselected
SCJS-1456 When drag BoxAnnotation resize adorner outside viewport, get ‘Cannot read properties of undefined (reading ‘x’)’ error
SCJS-852 LayoutStrategy properties on LayoutManager do not trigger a redraw
SCJS-1442 Trial Watermark corrupted on mobile
SCJS-1367 dataSeries.removeAt() method throws “memory access out of bounds error”
SCJS-1438 XyDataSeries.insertRange fails with “memory access out of bounds”
SCJS-1439 XyDataSeries.removeAt(i) can fail with “memory access out of bounds”
SCJS-1440 Labeling issues after zoom interactions
SCJS-1436 Maximum call stack size exceeded with ScaleOffsetFilter
SCJS-1416 Handle usage of executeOn for RolloverModifier
SCJS-1413 changing AxisCore.isVisible from false to true does not invalidate SciChartSurface
SCJS-1336 CursorModifier does not update when setting style properties
SCJS-1414 Setting axisBorder on invisible axis causes an error
SCJS-935 Create Nuxt.js sample project with scichart
SCJS-1181 Feature / Document Rollover Tooltip for nearest point only
SCJS-1405 MouseWheelZoomModifier throws an error for invisible axis
Cumulative release note for SciChart.js v3.0, which is covered in detail here
New: Native Text Rendering Engine - WebGL hardware accelerated text
New: DataLabels API adding text labels to data-points automatically
New: FastTextRenderableSeries type
New NativeTextAnnotation type
New SubCharts API (linked Charts, and Charts within Charts)
New Non-Uniform Heatmap Chart Type
New Heatmap Legend Control
New Navy Theme
Auto Coloring of Series based on a theme
Performance Boost: Multi-pane stock chart performance improvements using SubCharts API
Performance Boost: Hundreds of micro-optimisations throughout the code
Performance Boost: NumericAxis Async Labels for faster performance
Performance Boost: Native text system in axis for faster performance
Performance Boost: 10x Faster Performance for hundreds of charts scenario by using SubCharts API
Performance Boost: 10x Faster Performance for Uniform Heatmap updating
Example: Added an Axis Types demo
Example: Added an Axis Layout feature demo
Example: Updated our trading demos such as realtime ticking stock charts, candlestick chart, and depth chart
Example: Created a rich heatmap interactions demo
Example: Created client/server websocket streaming demo
Example: Created Oil & Gas Dashboard demo
Example: Created Generic Animations demo
Example: Created SubCharts Dashboard Performance demo
Example: Created a new FastTextRenderableSeries – Text Cloud demo
SCJS-1345 drawNaNAs Polyline not working
SCJS-1163 useWasmFromCDN only configures 2D
SCJS-1172 series.isVisible doesn’t hide pointmarkers
SCJS-1161 Need clear license message if trialling a version that is too old
SCJS-1177 Box annotation looks wrong with very thick border
SCJS-548 Cannot align a HorizontalLineAnnotation left or right
SCJS-550 Cannot align a VerticalLineAnnotation Top or Bottom
SCJS-1173 After 2.2.2378 release chart redraw is broken if delete is not being called
SCJS-1180 LineAnnotation grip handle incorrect behavior
SCJS-1187 SeriesSelection errors if any series is invisible
SCJS-1189 DateAxis Ticks and labels disappear when zoomed way out
SCJS-1186 ServerSide Licensing fails with CreateSingle
SCJS-1205 Axis Background Drawing Issue
SCJS-1207 Scientific format shows NaNx10- for 0
SCJS-1208 Error in HitTest if series without dataSeries is added to a surface with a modifier
SCJS-1237 Documentation for heatmap is out of date
SCJS-1212 Investigate rendering performance of heatmap dynamically updated with large size 12000×5000
SCJS-1270 Pie chart does not render a single segment
SCJS-1240 Pointer Events Capture Issue on Annotations
SCJS-1092 Heatmap Series Serialization issues – NaNs are serialized as nulls, deserialization fails to handle null values properly
SCJS-1238 drawNaNs Polyline doesn’t handle multiple sequential NaNs
SCJS-1223 Axis Label Bugs – 0 disappears from chart when old labels are used and you go to the line chart demo and back.
SCJS-1277 When overriding tooltipSvgTemplate, tooltip no longer shifts
SCJS-1267 SVG annotation has shifted adorner borders
SCJS-1295 Selecting annotations at a drag point causes the annotation to shift / resize
SCJS-1294 Add strokeDashArray to the Spline Line series options
SCJS-1306 Theme background is not applied before the initial frame
SCJS-539 SplineLine, Mountain and Band do not support StrokeDashArray
SCJS-1349 SmartDateLabelProvider values don’t work for a 1-minute chart
SCJS-1222 Add missing SciChartSurface properties into the serialization output
SCJS-1347 SciChartOverview not updating when data set after overview creation
SCJS-1318 SurfaceMeshRenderableSeries3D and ScatterRenderableSeries3D Don’t obey opacity
SCJS-1319 AxisBase3D doesnt obey autoTicks = false and manual major/minor deltas
SCJS-1333 When Axis has no series, any animate Zoom Extents operation on the axis causes a crash
SCJS-1335 MouseWheelZoomModifier does not set SciChartSurface.zoomState to EZoomState.UserZooming
SCJS-1357 Sync multi chart + Rollover = trying to access a deleted CoordinateCalculator
SCJS-1321 3D Charts clip when in the same webpage as a 2D chart
SCJS-1341 Codesandbox.io frequently throwing errors with scichart
SCJS-1148 Special License for codesandbox.io
SCJS-1376 Overview Annotation overflowing visiblerange
Complete re-work of the SciChart Demo brand, examples and styles
Cumulative release note for SciChart.js v2.1
Add explanation error message for trial expired on old version (SCJS-886)
Add AxisRenderer.axisSize property which allows setting axis label width
Add includeAxis property to MouseWheelZoomModifier
Add AxisRenderer.axisThickness (SCJS-953)
Prevent CursorModifier axis labels to be cut out of the chart (SCJS-980)
Allow passing div element reference into SciChartSurface.create to make SciChart.js possible to use in shadow DOM (SCJS-974)
Display performance warnings in dev environment (SCJS-984)
Improve guard checks for data series creation (SCJS-981)
Snap RolloverModifier vertical line to data points (SCJS-623)
Optimize getXRange() algorithm for unsorted data (SCJS-888)
Added Documentation & Examples for new Generic Animations API
Added Generic Animations example to the Demo app
Optimizations for Annotation notifyPropertyChange method not to be called if the property has not changed
Better error message if wasm cannot be loaded, or the wrong version loaded
Add a property to configure stacked axis length (SCJS-954)
Auto-detecting data distribution flags in DataSeries (flags dataSeries.isSorted, dataSeries.containsNaN). Specifying these flags gives better performance in big-data scenarios.
Added labels support outside of a Pie Chart
Added Documentation of how to use SciChart.js in vannilla HTML/Js (without npm) using our Browser Bundle served by CDN
Added Documentation for Performance Tips & Tricks
Added Documentation for new Data-point Resampling features
Fix an error for LineAnnotation with a hidden label (SCJS-850)
Fix several SciChartOverview-related bugs
Fix a resize surface issue for annotation adorner layer (SCJS-844)
Added FloatArray64 array support for DataSeries
Fix MouseWheelZoomModifier zooming in issue for LogarithmicAxis (SCJS-881)
Fix axis labels population for flipped coordinates (SCJS-884)
Fix RolloverModifier tooltip to use the series stroke as the default color (SCJS-776)
display the trial watermark correctly for small charts (SCJS-892)
Fix clearing the legend with sciChartSurface.chartModifiers.clear() (SCJS-916)
Fix a caching problem for SmartLabelProvider (SCJS-920)
Fix mouse wheel and zoom extends on inner axis with applyToChart property set to False
Fix annotation borders calculation to take into account xCoordShift (SCJS-959). This bug resulted in an incorrect hit-test for annotations.
Fix drawing render context annotations below series (SCJS-919)
Fix rendering category axis without data (SCJS-946)
Fix RolloverModifier tooltips bug (SCJS-975)
Fix CursorModifier to apply axisLabelFill and axisLabelStroke correctly (SCJS-979)
Fix an infinite loop problem for multiple charts (SCJS-988)
Fix RolloverModifier error when it was used without a data series
Fix runtime license not applied if it has started looking for license wizard (SCJS-991)
draw gradient correctly when canvas resize (SCJS-826)
Handle visibleRangeLimit properly when scrolling (SCJS-962)
Performance Boost: Optimised data transfers from JavaScript to WebAssembly
Performance Boost: Improved Rollover tooltip performance
Performance Boost: Async Label creation
Performance Boost: Improved raw drawing speed of graphics engine by > 100%
Performance Boost: Smart Data-point Resampling
Performance Boost: DataSeries creation, updating orders of magnitude faster
Cumulative release note for SciChart.js v2.0 including the 2.0-beta version.
Series Selection
DataPoint Selection
Logarithmic Axis
Central / Inner Axis
Vertically Stacked Axis
Axis Label Customisation
Builder API
JSON Deserialization / Serialization API
Point Metadata API
Filters (Data Transforms) API
Style and Data Animations
Transparent, Image or Blurred/Glass Backgrounds
Loader animation Customisation
SciChartOverview Scrollbar Control
Retina / High DPI Display / Browser Zoom Support
TextLabelProvider added to Axis APIs
Improving hit-test API results
improving overall reliability, adding helpful error messages and improving usability of APIs
Fix delete was unsubscribing from some events, causing JavaScript memory leaks
Fix Annotation Adorners not being cleared
Fix AxisMarkerAnnotation shows wrong value for vertical chart
Fix RubberBandXyZoomModifier only honours EXyDirection.XyDirection
Fix performance issue if tick settings would result in too many labels.
Fix Error if Logarithmic x-axis used with no data
Fix Annotation dragging when using vertical charts / flipped coordinates
Option to drag horizontal and vertical line annotations by their axis label
Improved handling of select and resize of overview annotation
Legend now supports wrapping and is easier to customise
Improved rollover modifier tooltip positioning
ICandlestickSeriesOptions renamed
RubberBandSvgRect renamed
TEasing renamed to TEasingFn
TGridLineStyle.strokeDasharray renamed
Multiple Rollover modifier breaking changes
hitTest function moved to hitTestprovider
Shader effect classes
UniformHeatmapDataSeries constructor updated
additional IThemeProvider fields
LabelProvider.formatLabel
SciChartPieSurface.create() parameter changes
SciChartSurface.create() parameters updated
Formatting enums renamed
