import { GeoProjection } from 'd3-geo';
import { MapGraphDataModel } from '../../../data-models/map-graph';
import { FlowParticle, FlowUpdateContext } from '../types';
import { TopoJSONMapConfigInterface } from '../config';

export interface FlowInitContext<AreaDatum, PointDatum, LinkDatum> {
    config: TopoJSONMapConfigInterface<AreaDatum, PointDatum, LinkDatum>;
    datamodel: MapGraphDataModel<AreaDatum, PointDatum, LinkDatum>;
    _projection: GeoProjection;
    _flowParticles: FlowParticle[];
    _sourcePoints: Array<{
        x: number;
        y: number;
        radius: number;
        color: string;
        flowData: LinkDatum;
    }>;
}
export declare function initFlowFeatures<AreaDatum, PointDatum, LinkDatum>(ctx: FlowInitContext<AreaDatum, PointDatum, LinkDatum>): void;
export declare function updateFlowParticles(ctx: FlowUpdateContext): void;