import type { WebGLContextManager } from "../../../webgl/context-manager";
import type { CartesianChart } from "../cartesian";
import type { Glyph } from "../glyph";
/**
 * Polyline glyph — instanced triangle-strip segments between adjacent
 * same-series points. Segments are scoped per-series via byte-offset
 * rebinding (see `drawLineSeries`); the shader reads the endpoints'
 * raw color values and samples the gradient LUT via the same sign-
 * aware `(v - cmin) / (cmax - cmin)` mapping the scatter glyph uses.
 */
export declare class LineGlyph implements Glyph {
    readonly name: "line";
    private _cache;
    ensureProgram(_chart: CartesianChart, glManager: WebGLContextManager): void;
    draw(chart: CartesianChart, glManager: WebGLContextManager, projection: Float32Array): void;
    drawSeries(chart: CartesianChart, glManager: WebGLContextManager, projection: Float32Array, seriesIdx: number): void;
    buildTooltipLines(chart: CartesianChart, flatIdx: number): Promise<string[]>;
    tooltipOptions(): {
        crosshair: boolean;
        highlightRadius: number;
    };
    destroy(chart: CartesianChart): void;
}