scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
41 lines (40 loc) • 1.72 kB
TypeScript
import { TSciChart } from "../../../../types/TSciChart";
import { WebGlRenderContext2D } from "../../../Drawing/WebGlRenderContext2D";
import { RenderPassData } from "../../../Services/RenderPassData";
import { UniformHeatmapRenderableSeries } from "../UniformHeatmapRenderableSeries";
import { BaseSeriesDrawingProvider } from "./BaseSeriesDrawingProvider";
/**
* Used internally - a drawing provider performs drawing for a {@link UniformHeatmapRenderableSeries} using
* our WebAssembly WebGL rendering engine
*/
export declare class UniformHeatmapDrawingProvider extends BaseSeriesDrawingProvider<UniformHeatmapRenderableSeries> {
private paletteTexture;
private heatTextureCache;
private packedFloatParams;
private hasNaNs;
private opacity;
private gradientStops;
/**
* Creates an instance of the {@link UniformHeatmapDrawingProvider}
* @param webAssemblyContext The {@link TSciChart | SciChart 2D WebAssembly Context} containing native methods and
* access to our WebGL2 Engine and WebAssembly numerical methods
* @param parentSeries the parent {@link UniformHeatmapRenderableSeries} which this drawing provider is attached to
*/
constructor(webAssemblyContext: TSciChart, parentSeries: UniformHeatmapRenderableSeries);
/**
* @inheritDoc
*/
delete(): void;
/**
* @inheritDoc
*/
onSeriesPropertyChange(propertyName: string): void;
protected seriesHasDataChanges(): void;
/**
* @inheritDoc
*/
draw(renderContext: WebGlRenderContext2D, renderPassData: RenderPassData): void;
private createPaletteTexture;
private recreatePalette;
private drawHeatmap;
}