/**
 * Beam Load Calculation Types
 */
export type LoadType = 'uniform' | 'concentrated' | 'combined';
export type BeamSupport = 'simple' | 'cantilever' | 'fixed';
export interface LoadInput {
    loadType: LoadType;
    support: BeamSupport;
    span: number;
    uniformLoad?: number;
    pointLoad?: number;
    pointPosition?: number;
}
export interface LoadResult {
    maxMoment: number;
    maxShear: number;
    maxDeflectionCoeff: number;
    reactionLeft: number;
    reactionRight: number;
    momentAtPoint?: number;
}
/**
 * Concrete Mix Design Types
 */
export type ConcreteGrade = '15' | '20' | '25' | '30' | '35' | '40';
export interface ConcreteInput {
    grade: ConcreteGrade;
    volume: number;
}
export interface ConcreteResult {
    cement: number;
    sand: number;
    gravel: number;
    water: number;
    ratio: string;
}
/**
 * Earthwork Volume Types
 */
export interface EarthworkInput {
    length: number;
    width: number;
    depth: number;
    swellFactor: number;
    shrinkFactor: number;
}
export interface EarthworkResult {
    bankVolume: number;
    looseVolume: number;
    compactedVolume: number;
}
/**
 * Formwork Area Types
 */
export type ElementType = 'column' | 'beam' | 'slab' | 'wall' | 'footing';
export interface FormworkInput {
    elementType: ElementType;
    length: number;
    width: number;
    height: number;
    quantity: number;
    reuses: number;
}
export interface FormworkResult {
    singleAreaSqm: number;
    totalAreaSqm: number;
    effectiveAreaSqm: number;
    plywoodSheets: number;
}
/**
 * Rebar Weight Calculation Types
 */
export type RebarSize = 'D10' | 'D13' | 'D16' | 'D19' | 'D22' | 'D25' | 'D29' | 'D32';
export interface RebarInput {
    size: RebarSize;
    length: number;
    quantity: number;
}
export interface RebarResult {
    unitWeight: number;
    totalLength: number;
    totalWeight: number;
}
/**
 * Slope Conversion Types
 */
export type SlopeUnit = 'percent' | 'degrees' | 'ratio';
export interface SlopeInput {
    fromUnit: SlopeUnit;
    value: number;
}
export interface SlopeResult {
    percent: number;
    degrees: number;
    ratio: number;
    risePerMeter: number;
}
/**
 * Aggregate Calculation Types
 */
export type AggregateType = 'gravel' | 'sand' | 'crushed_stone' | 'topsoil' | 'mulch' | 'custom';
export interface AggregateDensity {
    type: AggregateType;
    density: number;
    label: string;
}
export interface AggregateInput {
    length: number;
    width: number;
    depth: number;
    depthUnit: 'meters' | 'centimeters';
    aggregateType: AggregateType;
    customDensity?: number;
}
export interface AggregateResult {
    volume: number;
    weight: number;
    weightTonnes: number;
    coverageArea: number;
    density: number;
    bags20kg: number;
    bags25kg: number;
}
/**
 * Brick Calculation Types
 */
export type BrickSize = 'modular' | 'standard' | 'queen' | 'king' | 'custom';
export interface BrickDimensions {
    length: number;
    height: number;
}
export interface BrickInput {
    wallArea: number;
    brickSize: BrickSize;
    customLength?: number;
    customHeight?: number;
    mortarThickness: number;
    wasteFactor: number;
}
export interface BrickResult {
    bricksPerSqMeter: number;
    totalBricks: number;
    bricksWithoutWaste: number;
    wastedBricks: number;
}
/**
 * PERT (Program Evaluation and Review Technique) Types
 */
export interface PertTask {
    id: string;
    name: string;
    predecessors: string[];
    optimistic: number;
    mostLikely: number;
    pessimistic: number;
}
export interface PertInput {
    tasks: PertTask[];
    deadline?: number;
}
export interface PertTaskResult {
    id: string;
    name: string;
    duration: number;
    variance: number;
    es: number;
    ef: number;
    ls: number;
    lf: number;
    totalFloat: number;
    freeFloat: number;
    isCritical: boolean;
}
export interface PertResult {
    tasks: PertTaskResult[];
    criticalPath: string[];
    projectDuration: number;
    projectVariance: number;
    projectStdDev: number;
    zScore?: number;
    completionProbability?: number;
}
/**
 * Roof Calculation Types
 */
export interface RoofInput {
    rise: number;
    run: number;
    footprintLength: number;
    footprintWidth: number;
}
export interface RoofResult {
    slopeRatio: string;
    slopeDegrees: number;
    slopePercent: number;
    rafterLength: number;
    slopeFactor: number;
    roofArea: number;
    pitchDescription: string;
}
/**
 * Moment of Inertia (Section Properties) Types
 */
export type SectionShape = 'rectangle' | 'circle' | 'hollowRectangle' | 'hollowCircle' | 'iBeam' | 'tSection' | 'cChannel';
export type MomentOfInertiaInput = {
    shape: 'rectangle';
    width: number;
    height: number;
} | {
    shape: 'circle';
    diameter: number;
} | {
    shape: 'hollowRectangle';
    outerWidth: number;
    outerHeight: number;
    innerWidth: number;
    innerHeight: number;
} | {
    shape: 'hollowCircle';
    outerDiameter: number;
    innerDiameter: number;
} | {
    shape: 'iBeam';
    flangeWidth: number;
    totalHeight: number;
    webThickness: number;
    flangeThickness: number;
} | {
    shape: 'tSection';
    flangeWidth: number;
    flangeThickness: number;
    webThickness: number;
    webHeight: number;
} | {
    shape: 'cChannel';
    flangeWidth: number;
    totalHeight: number;
    webThickness: number;
    flangeThickness: number;
};
export interface MomentOfInertiaResult {
    area: number;
    Ix: number;
    Iy: number;
    Sx: number;
    Sy: number;
    rx: number;
    ry: number;
    centroidY: number;
}
/**
 * Stair Calculation Types
 */
export interface StairInput {
    totalRise: number;
    totalRun: number;
    riserHeight?: number;
}
export interface StairResult {
    numberOfRisers: number;
    numberOfTreads: number;
    actualRiserHeight: number;
    treadDepth: number;
    stringerLength: number;
    twoRPlusT: number;
    codeCompliant: boolean;
    totalAngle: number;
}
//# sourceMappingURL=types.d.ts.map