import type { IVector2, IVector3 } from "type-tls";
import { Vector3 } from "three";
import type { GradientParams, SphereParticleVolumeFeature } from "./type";
/**
 * 热力值及其相关信息
 */
export type HeatAccumulateValue = Required<Omit<SphereParticleVolumeFeature, "valueGradient">> & GradientParams;
/**
 * 热力值累积函数
 * @remarks
 * 当某一个点处理多个热力球区域内时，需要考虑多个热力球在该点的累积效果，通过该函数来获取最终的累积结果
 * @param values - 值的信息列表
 * @param clim - 默认的映射区间
 * @returns 累积后的最终值
 */
export type HeatValuesAccumulate = (values: HeatAccumulateValue[], clim: IVector2) => number;
/**
 * 默认的值累积函数
 * @param values
 * @param clim
 * @returns
 */
export declare function valuesAccumulate_Default(values: HeatAccumulateValue[], clim: IVector2): number;
/**
 * 热力粒子体积特性
 */
export interface HeatParticleVolumeFeature extends SphereParticleVolumeFeature {
    /**
     * 值累积函数
     * @remarks
     * 当某一个点处理多个热力球区域内时，需要考虑多个热力球在该点的累积效果，通过该函数来获取最终的累积结果
     * @defaultValue valuesAccumulate_Default
     */
    valuesAccumulate?: HeatValuesAccumulate;
}
/**
 * 热力点
 */
export type HeatParticleVolumeFeaturePoint = HeatParticleVolumeFeature & IVector3;
/**
 * 热力点信息
 */
export type HeatParticleVolumeFeaturePointInfo = Required<HeatParticleVolumeFeaturePoint>;
/**
 * 热力向量信息
 */
export type HeatParticleVolumeFeatureVectorInfo = Required<HeatParticleVolumeFeature> & Vector3;
/**
 * 计算 Data3D 点所需要的额外信息
 */
export type Data3DPointExtraInfo = {
    /**
     * 存放 Data3D 的数组
     * @remarks
     * 长度应该是 `size.x * size.y * size.z`
     */
    data3D: number[];
    /**
     * Data3D的尺寸
     */
    size: IVector3;
    /**
     * 计算标记数组
     * @remarks
     * 与 data3D 一样长，用于记录哪些像素已经被计算过了
     */
    tags: (undefined | true)[];
};
/**
 * 根据热力点来计算并生成相关的3D数据
 * @param pointInfo - 点信息
 * @param extraInfo - 额外的信息
 * @param intersects - 相交的点列表
 * @returns
 */
export declare function computeHeatData3DForPoint(pointInfo: HeatParticleVolumeFeaturePointInfo, extraInfo: Data3DPointExtraInfo, intersects: HeatParticleVolumeFeaturePointInfo[]): {
    particles: Vector3[];
    values: number[];
};
/**
 * 创建热力3D数据的选项
 */
export interface HeatData3DOptions extends HeatParticleVolumeFeature {
    /**
     * 热力点列表
     */
    points: HeatParticleVolumeFeaturePoint[];
    /**
     * Data3D 的尺寸
     * @defaultValue 从原点到  points 的AABB包围盒最大点的空间尺寸
     */
    size?: IVector3 | null;
}
/**
 * 创建热力3D数据
 * @param options
 * @returns
 */
export declare function createHeatData3D(options: HeatData3DOptions): {
    data: number[];
    size: Vector3;
};
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