🔧 测绘工程工具

↔️ 两点空间距离Coordinate Distance 3d 三维坐标距离在线计算器，输入两点的 x/y/z 求得空间直线距离，用于工程测量与建模，纯前端运行。Coordinate Distance 3d - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... ⚙️ 全站仪测距斜距/平距/高差换算Convert 33 全站仪测距换算器：将斜距按竖直角换算为平距与高差，用于全站仪测量数据处理与高程传递。Convert 33 - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ... ⚙️ 变形（监测/周期/分析）图表Analysis Cycle 变形监测周期分析图表工具：按周期录入监测点变形数据，绘制趋势图表并统计变化量，辅助工程变形监测与预警。Analysis Cycle - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⭕ 圆曲线要素Circular Curve 圆曲线要素在线计算器，输入半径、转角与缓和曲线长求得 T（切线）、L（曲线）、E（外距）、M（中点）等，用于道路设计，纯前端。Circular Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 地籍（界址/面积/权属）调查Area 24 地籍调查测算工具：按界址点坐标或边长计算地块面积，并核对权属信息，用于地籍调查与不动产测绘。Area 24 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📍 坐标转换Coordinate Convert 大地坐标（经纬度）→ 高斯-克吕格平面坐标（CGCS2000 椭球），含带号、中央子午线与子午线收敛角Coordinate Convert - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Sur... ⬡ 多边形闭合面积Area Coordinates 坐标法多边形面积在线计算器，输入顶点顺时针或逆时针坐标序列用鞋带公式求闭合面积，用于地籍与土方，纯前端。Area Coordinates - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🔄 平面点绕原点旋转Coordinate Rotation 平面坐标旋转在线计算器，输入点坐标与旋转角求得绕原点旋转后的新坐标，用于测量与图形变换，纯前端运行。Coordinate Rotation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 房产（面积/产权/产籍）测量Area 25 房产面积测量工具：按户型尺寸或分户界址计算房产建筑面积，辅助产权与产籍测绘核算。Area 25 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 抛物线形竖曲线Vertical Curve Elev 竖曲线高程在线计算器，基于抛物线形竖曲线输入桩号与参数求得设计高程，用于道路纵断面设计，纯前端运行。Vertical Curve Elev - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🔺 正弦定理Triangulation Side Calculator 三角测量边长在线计算器，输入已知边与两角用正弦定理求得未知边长，用于控制测量与放样，纯前端运行。Compute a triangle side by the law of sines from known side and opposite angles. Free online tool on ToolBox — 100% client-side, no data uploaded, no insta... 🔍 比例尺换算Scale Converter 输入地形图比例尺（如 1:1000）与图上长度或实地距离，自动换算对应的实际距离或图上长度，用于读图、放样时图上尺寸与实地尺寸的快速互换。Scale Converter - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Survey... 📐 水准测量平差Leveling Adjustment Calculator 输入各测段高差观测值及测站数（或距离），按测站数比例分配闭合差，计算平差后高差。Adjust differential leveling observations. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... 📐 水准测量计算Leveling Calc 输入水准路线各测段观测高差，推算各点高程并计算路线闭合差，按规范检核容许闭合差是否合格，用于工程与地形水准测量的平差与成果整理。Leveling Calc - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ... 📏 测距仪斜距 → 水平距离Horizontal Distance 输入测距仪测得的斜距 L 与竖直角 α，按 D=L·cosα 将斜距归算为水平距离，用于全站仪、测距仪观测数据由斜距向平距的换算。Horizontal Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 由两点坐标反算方位角Bearing from Coordinates 输入北向增量 ΔN 与东向增量 ΔE，按 atan2 反算方位角（0–360°），用于导线计算。Bearing from Coordinates - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mappin... 📍 由两点平面坐标求水平距离Coordinate Distance 2d 输入两点平面坐标 (x₁,y₁) 与 (x₂,y₂)，按距离公式求水平距离，用于测量与放样。Coordinate Distance 2d - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping ... 📦 由两端与中截面面积求棱台体积Prismoidal Volume 输入两端面积 A₁、A₂、中截面 A_m 与间距 L，按棱台公式求体积，适用于土石方算量。Prismoidal Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📦 由两端断面面积与间距求土方量End Area Volume 输入相邻两断面面积 A₁、A₂ 与断面间距 L，按平均断面法 V=(A₁+A₂)/2·L 计算两断面间土方体积，广泛用于道路、渠道的土方量估算。End Area Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⌒ 由半径与转角求中弦垂距Middle Ordinate Curve 输入圆曲线半径 R 与路线转角 Δ（度），按 M=R·(1−cos(Δ/2)) 计算中点垂距（中弦垂距），用于平曲线要素计算与曲线中点位置的放样校核。Middle Ordinate Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping t... ⌒ 由半径与转角求切线长Tangent Length Curve 输入圆曲线半径 R 与路线转角 Δ（度），按 T=R·tan(Δ/2) 计算切线长，用于道路平曲线要素计算，确定曲线起点、终点到路线交点的距离。Tangent Length Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping to... ⌒ 由半径与转角求外距External Distance Curve 输入圆曲线半径 R 与路线转角 Δ（度），按 E=R·(sec(Δ/2)−1) 计算曲线外距，即交点到曲线中点的垂直距离，用于平曲线要素计算与路线设计的超高布置。External Distance Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping... ⌒ 由半径与转角求曲线弦长Chord Length Curve 输入圆曲线半径 R 与路线转角 Δ（度），按 C=2R·sin(Δ/2) 计算曲线弦长，用于道路、铁路平曲线要素计算中的弦长量取与放样。Chord Length Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📏 由后视前视累计求待定点高程Reduced Level Bsfs 输入已知点高程 BM、后视累计 BS 与前视累计 FS，按 RL=BM+ΣBS−ΣFS 求待定点高程。Reduced Level Bsfs - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 由坐标增量(Δx,Δy)求方位角Bearing Azimuth 输入两点的北向、东向坐标增量（ΔN、ΔE），用 α=atan2(ΔE,ΔN) 反算两点连线方位角并归算到 0–360°，用于测量中由坐标差求边方向的方位角计算。Bearing Azimuth - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 由坡度与曲线长求竖曲线上任一点高程Grade Intersection Elev 输入前坡 g₁、后坡 g₂、曲线长 L 与距起点距离 x，求相对高程 y。Grade Intersection Elev - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping... ⛰️ 由底面积与高求锥体体积Earthwork Pyramid Volume 输入锥体底面积 A 与高度 h，按 V=A·h/3 计算锥体体积，适用于土石方、填方中近似为锥形的堆体体积估算，如弃土堆、料堆方量快速计算。Earthwork Pyramid Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mappin... 📉 由斜距与垂直角求水平距Horizontal from Slope 输入斜距 S 与垂直角 v（度），按 H=S·cos(v) 计算对应的水平距离，用于三角高程测量与地形测绘中由斜边距离换算平距的工程计算。Horizontal from Slope - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping t... 📏 由横基尺长度与夹角求距离Subtense Distance 输入横基尺长度 c 与经纬仪所对夹角 θ（度），按 D=c/tan(θ) 计算待测点距离，用于无测距仪时借助横基尺与角度测量的间接测距方法。Subtense Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🎯 由距离与方位角求坐标增量Bearing to Offset 输入边长距离 D 与方位角 α（度），按 N=D·cosα、E=D·sinα 计算该边的北向与东向坐标增量，用于导线测量中由已知点和边长方位角推算待定点的坐标。Bearing to Offset - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surv... 🥞 相邻断面体积Cut Fill Volume 平均断面法土方量在线计算器，输入相邻两断面面积与间距求得挖填方体积，用于道路与场地平整算量，纯前端运行。Cut Fill Volume - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 📈 纵坡 = 高差 / 平距Slope Percentage 输入两点间高差 h 与水平距离 d，按 坡度%=(h/d)×100 计算纵坡百分比，也可换算为坡度角，用于道路、管线纵坡设计与场地排水的坡度表达。Slope Percentage - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🎯 视距丝间隔法Stadia Distance 视距测量距离在线计算器，基于视距丝间隔与乘常数、高差角求得水平距离与高差，用于地形测绘，纯前端运行。Stadia Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. 🧭 角度 ↔ 百分比Grade Angle 坡度角换算器：输入坡度角度或百分比，按 百分比 = tan(θ)×100 双向换算，用于道路与场地坡度表达。Grade Angle - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 角度测量计算Calc Angle 2 支持方向观测法与复测法，计算角度均值、精度指标并检核盘左盘右差，用于控制测量。Calc Angle 2 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying &... 📏 距离计算Distance Calculate 平面坐标正算与反算：由两点坐标求距离与方位角，或由一点、距离、方位角求另一点Distance Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveyi... ⚙️ 距离（斜距/平距/高差）改正Distance 距离改正计算器：对斜距按相关改正求平距与高差，用于控制测量与地形测图的距离归算。Distance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Mapping tools. ⚙️ 道路（中线/横断面/放样）计算Road Alignment / Cross-Section / Setting-Out Calculator 道路中线放样计算工具：按道路中线、横断面设计参数计算放样坐标与高程，辅助道路工程施工测量。Compute road centerline, cross-sections and setting-out. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveyin... ↕️ 闭合水准路线Elevation Diff 闭合水准路线计算器：按后视减前视累加求高差 Σh = Σ(后视−前视)，用于水准测量平差与高程传递。Elevation Diff - compare online, free and clear. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying & Ma... 🗺️ 面积计算Area Calculate 依次输入多边形各顶点坐标（可动态增减顶点），用鞋带公式（Shoelace）计算闭合多边形的面积与周长，并在界面上实时绘出图形，适合地块、宗地面积量算。Area Calculate - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Surveying ...