lightweight-charts

Version 5.1.0 introduces data conflation, a powerful performance optimization feature designed for charts with very large datasets. For most use cases with typical dataset sizes, this feature will operate transparently in the background. However, if you're working with datasets containing tens of thousands of data points or more, conflation can dramatically improve rendering performance when u...

Enhancements

• Added rightOffsetPixels option to HorzScaleOptions, allowing margin space from the right side of the chart to be set in pixels. This option takes precedence over rightOffset and ensures consistent pixel offset when using fitContent on charts with different amounts of data. The pixel-based offset remains consistent during zoom operations. (PR #1957)
• Added pop meth...

Enhancements

• Improved pane API with several new methods and options:
  • Added addDefaultPane option to chart options, allowing creation of charts with no initial panes
  • Added addPane method to IChartApi for programmatically adding panes
  • Added setPreserveEmptyPane and preserveEmptyPane methods to control empty pane behavior
  • Added getStretchFactor and `setStretch...

Enhancements

• Added price scale visible range control with new methods in IPriceScaleApi: setVisibleRange, getVisibleRange, and setAutoScale. These methods allow for programmatic control of the visible price range on a price scale. Also added ensureEdgeTickMarksVisible option to PriceScaleOptions, which ensures tick marks are always visible at the very top and bottom of the pri...

Enhancements

• Implemented series order functionality, allowing control over the rendering order of series within a pane. Series with higher order values are rendered on top of those with lower values. Added two new methods to ISeriesApi: seriesOrder() to get the current order index and setSeriesOrder(order) to set a specific order. (PR #1868)

[Changes since the last published vers...