v4.2.0

Original release news here

Release video here

warning

This version is not available under @lightningchart in NPM. It can only be accessed via legacy @arction organization.

[4.2.0] - 2023-08-08

Added

• Added TimeTickStrategy.setFormattingFunction, setMajorFormattingFunction, setMinorFormattingFunction
• Control.translateCoordinate
  • This method is present on all chart types and Dashboard
  • It replaces translatePoint and similar previous APIs.
• Added Control.getSizePixels(): Point
  • Simple method for getting size of a chart in pixels.
• Added Control.onResize, Control.offResize
  • Methods were missing for Dashboard and ZoomBandChart
• Added BarChart
  • Dedicated chart type for visualizing categorical data with convenient high level end user API.
  • Features (to mention some): cursor, sorting, animations, overlapping label hiding, different label position options, events API, high performance, support for large number of bars, logarithmic value axis, vertical + horizontal bars.
• Added type guards for all style objects.
  • isSolidFill, isSolidLine, isFontSettings, etc.
• Added convenience function: DateTimeTickStrategy.setFormatting
  • Easier way of configuring date time ticks formatting for cases with simple requirements.
• Added PolarHeatmapSeries, PolarHeatmapSeriesFormatter, PolarHeatmapSeriesOptions

Fixed

• Fixed FormattingFunctions.NumericUnits sometimes not adding decimal places where necessary.
• Fixed errors and crashes when supplying LCJS with style objects created from separate ES module based library.
  • Problem appeared when using lcjs-themes, for example.
• Fixed PolarChart radial axis stroke having clearly visible angle steps especially on large monitors.
• Fixed issue where axis didn't scroll to show data if all coordinates were same.
• Fixed LineSeries with DashedLine visualization error when appending 1 or very few data points at a time.
• Fixed slight performance degradation with static Line Series
  • Introduced in v4.1.0
  • With 1 million data points, about 1 millisecond of extra loading time
• Fixed DateTime tick display error in major = months range
  • Sometimes right side great tick would display next year even if its not in axis range.

Deprecated

• Deprecated translatePoint, translatePoint3D, PublicEngine.scale, PublicEngine.clientLocation2Engine, PublicEngine.engineLocation2Client
  • See Control.translateCoordinate for newer syntax of coordinate translations
• Deprecated previous method signature of solveNearestFromScreen
  • New signature was added to replace it. It expects object with { clientX: number, clientY: number } properties, instead of { x: number, y: number }. These values should be proper HTML client coordinates rather than internal LCJS engine coordinates like before.
• Deprecated pixelScale properties.
  • Use coordsRelative property instead, it works exactly same.
• Deprecated Chart3D.world, Chart3D.axes over Chart3D.coordsWorld, Chart3D.coordsAxis