DataPipeline<X extends num, Y extends num> class

A data processing pipeline for efficient large dataset handling.

The pipeline provides:

  • Viewport-aware data filtering
  • Automatic decimation when needed
  • Spatial index building for hit testing
  • Change notification for reactive updates

Example:

final pipeline = DataPipeline<double, double>(
  rawData: largeDataset,
  decimationConfig: DecimationConfig.standard,
);

// Get visible data for current viewport
final visible = pipeline.getVisibleData(
  controller.viewport,
  chartArea,
);

Constructors

DataPipeline({required List<DataPoint<X, Y>> rawData, DecimationConfig decimationConfig = const DecimationConfig()})
Creates a data pipeline for processing chart data.

Properties

decimationConfig → DecimationConfig
final
hashCode → int
The hash code for this object.
no setterinherited
isLargeDataset → bool
Whether the dataset is considered large (needs decimation).
no setter
rawData → List<DataPoint<X, Y>>
The raw unprocessed data.
no setter
rawDataCount → int
Number of raw data points.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

appendData(List<DataPoint<X, Y>> newPoints) → void
Appends new data points (for streaming scenarios).
buildSpatialIndex(Rect chartArea, CoordinateMapper mapper) → SpatialIndex<DataPointInfo>
Builds a spatial index for efficient hit testing on visible data.
getAllData() → List<DataPoint<X, Y>>
Returns all data without viewport filtering (but still decimated if large).
getBounds() → DataBounds?
Gets the data bounds (min/max for X and Y).
getVisibleData(ChartViewport viewport, Rect chartArea) → List<DataPoint<X, Y>>
Returns processed data optimized for the current viewport.
invalidateCache() → void
Invalidates all cached data, forcing reprocessing on next access.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
removeOlderThan(X minX) → void
Removes data points older than the given x value (for rolling windows).
toString() → String
A string representation of this object.
inherited
updateData(List<DataPoint<X, Y>> newData) → void
Updates the raw data and invalidates cache.

Operators

operator ==(Object other) → bool
The equality operator.
inherited