@itwin/core-frontend/lib/esm/common/internal/render/PolylineParams.d.ts

iTwin.js frontend components

/** @packageDocumentation
 * @module Rendering
 */
import { LinePixels, PolylineIndices, PolylineTypeFlags, QPoint3dList } from "@itwin/core-common";
import { VertexIndices } from "./VertexIndices";
import { VertexTable } from "./VertexTable";
import { MeshArgsPositions } from "../../../render/MeshArgs";
import { PolylineArgs } from "../../../render/PolylineArgs";
import { MeshPolylineList } from "@itwin/core-common/lib/cjs/internal/RenderMesh";
/** Represents a tesselated polyline.
 * Given a polyline as a line string, each segment of the line string is triangulated into a quad.
 * Based on the angle between two segments, additional joint triangles may be inserted in between to enable smoothly-rounded corners.
 * @internal
 */
export interface TesselatedPolyline {
    /** 24-bit index of each vertex. */
    indices: VertexIndices;
    /** 24-bit index of the previous vertex in the polyline. */
    prevIndices: VertexIndices;
    /** 24-bit index of the next vertex in the polyline, plus 8-bit parameter describing the semantics of this vertex. */
    nextIndicesAndParams: Uint8Array;
}
/** @internal */
export interface PolylineParams {
    vertices: VertexTable;
    polyline: TesselatedPolyline;
    isPlanar: boolean;
    type: PolylineTypeFlags;
    weight: number;
    linePixels: LinePixels;
}
export declare function tesselatePolylineList(args: {
    points: MeshArgsPositions;
    polylines: MeshPolylineList;
    width: number;
    is2d: boolean;
}): TesselatedPolyline;
/** Strictly for tests. @internal */
export declare function tesselatePolyline(polylines: PolylineIndices[], points: QPoint3dList, doJointTriangles: boolean): TesselatedPolyline;
/** @internal */
export declare function createPolylineParams(args: PolylineArgs, maxDimension: number): PolylineParams | undefined;
/** @internal */
export declare function wantJointTriangles(weight: number, is2d: boolean): boolean;
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