scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
40 lines (39 loc) • 1.86 kB
TypeScript
import { TGradientStop } from "../../../../types/TGradientStop";
import { TSciChart } from "../../../../types/TSciChart";
import { WebGlRenderContext2D } from "../../../Drawing/WebGlRenderContext2D";
import { RenderPassData } from "../../../Services/RenderPassData";
import { CanvasTexture } from "../../TextureManager/CanvasTexture";
import { UniformContoursRenderableSeries } from "../UniformContoursRenderableSeries";
import { BaseSeriesDrawingProvider } from "./BaseSeriesDrawingProvider";
/**
* Used internally - a drawing provider performs drawing for a {@link UniformContoursDrawingProvider} using
* our WebAssembly WebGL rendering engine
*/
export declare class UniformContoursDrawingProvider extends BaseSeriesDrawingProvider<UniformContoursRenderableSeries> {
private heightsTextureCache;
private heightData;
private paletteTexture;
/**
* Creates an instance of the {@link UniformContoursRenderableSeries}
* @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 UniformContoursDrawingProvider} which this drawing provider is attached to
*/
constructor(webAssemblyContext: TSciChart, parentSeries: UniformContoursRenderableSeries);
/**
* @inheritDoc
*/
delete(): void;
/**
* @inheritDoc
*/
onSeriesPropertyChange(propertyName: string): void;
/**
* @inheritDoc
*/
draw(renderContext: WebGlRenderContext2D, renderPassData: RenderPassData): void;
private drawContours;
private computeHeightMap;
protected createPaletteTexture(width: number, height: number, gradientStops: TGradientStop[]): CanvasTexture;
private getDefaultColorMap;
}