import { Group, LineDashedMaterial, LineSegments, Material, MeshBasicMaterial, Plane, Vector3 } from 'three';
import { ScreenPoints } from '../../render/screen-points/ScreenPoints';
import { RenderManager } from '../../render/RenderManager';
import { ScreenPointsMaterial } from '../../render/screen-points/ScreenPointsMaterial';
export declare function createBillboardMaterial(baseMaterial: Material, opts: any): any;
export declare class ModelGridCurve {
    name: string;
    verts: number[];
    vertPars: number[];
    start: Vector3;
    end: Vector3;
    startText: any;
    endText: any;
    onTextSync: Function | undefined;
    constructor(name: string, verts: number[]);
    init(textMat: Material): void;
    private initTextBubbleText;
    calculateTrimPositions(planes: Plane[], clippingPlanes: (Plane | undefined)[], elev: number): void;
}
export declare class ModelGrid {
    grids: ModelGridCurve[];
    linesObj: LineSegments | undefined;
    bubblesObj: ScreenPoints | undefined;
    gridsGroup: Group<import('three').Object3DEventMap>;
    private vertsCount;
    private indecesCount;
    isInitialized: boolean;
    constructor();
    add(grid: ModelGridCurve): void;
    init(renderManager: RenderManager, linesMat: MeshBasicMaterial | LineDashedMaterial, bubblesMat: ScreenPointsMaterial, textMat: Material): void;
}
export declare class GridTools {
    modelGrids: Map<string, ModelGrid>;
    modelGridsGroup: Group<import('three').Object3DEventMap>;
    private readonly renderManager;
    linesMat: LineDashedMaterial;
    bubblesMat: ScreenPointsMaterial;
    textMat: any;
    private clippingPlanes;
    private elev;
    constructor(renderManager: RenderManager);
    init(): void;
    addModelGrid(modelId: string): ModelGrid;
    update(): void;
    clear(): void;
    destroy(): void;
    private onClippingUpdate;
    setGridsVisibility(isVisible: boolean): void;
}