import { OpenAssistantTool } from '@openassistant/utils';
import { z } from 'zod';
import { SpatialToolContext } from '../types';
/**
 * ## thiessenPolygons Tool
 *
 * This tool creates Thiessen polygons (Voronoi diagrams) from a set of points.
 * Thiessen polygons divide space into regions where each point is closer to its associated polygon than to any other point.
 *
 * ### Thiessen Polygons
 *
 * The tool creates Thiessen polygons with the following features:
 * - **Voronoi Diagram**: Divides space into regions based on proximity to input points
 * - **Spatial Partitioning**: Each polygon contains all locations closest to its associated point
 * - **Network Analysis**: Useful for service area analysis and spatial modeling
 * - **Polygon Output**: Returns the Thiessen polygons as polygon features for mapping
 *
 * ### Parameters
 * - `datasetName`: Name of the dataset with point geometries to create Thiessen polygons from (optional)
 * - `geojson`: GeoJSON string of point geometries to create Thiessen polygons from (optional)
 *
 * **Example user prompts:**
 * - "Create Thiessen polygons from these points"
 * - "Generate Voronoi diagram for the facility locations"
 * - "Make service area polygons for these hospitals"
 *
 * ### Example
 * ```typescript
 * import { thiessenPolygons } from "@openassistant/geoda";
 * import { convertToVercelAiTool } from "@openassistant/utils";
 *
 * const thiessenTool = {
 *   ...thiessenPolygons,
 *   context: {
 *     getGeometries: async (datasetName: string) => {
 *       // Implementation to retrieve geometries from your data source
 *       return geometries;
 *     },
 *   },
 * };
 *
 * const result = await generateText({
 *   model: openai('gpt-4.1', { apiKey: key }),
 *   prompt: 'Create Thiessen polygons from these points',
 *   tools: { thiessenPolygons: convertToVercelAiTool(thiessenTool) },
 * });
 * ```
 */
export declare const thiessenPolygons: OpenAssistantTool<ThiessenPolygonsArgs, ThiessenPolygonsLlmResult, ThiessenPolygonsAdditionalData, SpatialToolContext>;
export type ThiessenPolygonsArgs = z.ZodObject<{
    datasetName: z.ZodOptional<z.ZodString>;
    geojson: z.ZodOptional<z.ZodString>;
}>;
export type ThiessenPolygonsLlmResult = {
    success: boolean;
    result: string;
};
export type ThiessenPolygonsAdditionalData = {
    datasetName: string;
    [key: string]: unknown;
};
export type ThiessenPolygonsTool = typeof thiessenPolygons;