import type { Position } from "geojson";
import type { MapPolygon } from "./dynamicMapTypes";
/**
 * Represents a geographic point with latitude and longitude
 */
export interface Point {
    /** Latitude in degrees (-90 to 90) */
    lat: number;
    /** Longitude in degrees (-180 to 180) */
    lon: number;
}
/** A shape is drawn as a circle when typed so, or when it has a centre and radius. */
export declare function isCircle(polygon: MapPolygon): polygon is MapPolygon & {
    center: Point;
    radius: number;
};
/**
 * Represents geographic bounds
 */
export interface Bounds {
    /** Northern latitude bound */
    north: number;
    /** Southern latitude bound */
    south: number;
    /** Eastern longitude bound */
    east: number;
    /** Western longitude bound */
    west: number;
}
/**
 * Result of bounds calculation including center and zoom
 */
export interface BoundsResult {
    /** Calculated bounds with padding */
    bounds: Bounds;
    /** Center point [longitude, latitude] */
    center: [number, number];
    /** Calculated optimal zoom level */
    zoom: number;
}
/**
 * Generate points to approximate a circle using great circle calculations
 */
export declare function generateCirclePoints(centerLat: number, centerLon: number, radiusMeters: number, numPoints?: number): Point[];
/**
 * Compute the centroid of a polygon from its exterior coordinate ring.
 * Uses the shoelace/Green's theorem formula for geometric accuracy —
 * a simple coordinate average can place the centroid outside irregular shapes.
 */
export declare function computePolygonCentroid(coordinates: Position[]): Point;
/**
 * Calculate optimal zoom level for the given bounds and map dimensions
 */
export declare function calculateOptimalZoom(bounds: Bounds, mapWidth: number, mapHeight: number, paddingPixels?: number): number;
/**
 * Calculate enhanced bounds with buffer for a set of points
 */
export declare function calculateEnhancedBounds(markers: Point[], routes: Point[][], mapWidth: number, mapHeight: number, polygons?: MapPolygon[]): BoundsResult;
/** Whether the point's latitude and longitude are in range; logs the point when not. */
export declare function isValidPoint(point: Point, index: number | string, type: string): boolean;
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