Learn how to turn your corridor drone videos into powerful tools with chainage labels.๐ Topics Covered:โ Drone camera angle & flight plan tipsโ SRT telemetry from dronesโ Chainage calculation using GPS logs – Free Script & Toolโ Overlaying chainage text on video – Video Editing Tips โ๏ธ DRONE SRT to CHAINAGE AND OTHER SRT COVERTER TOOL :๐ฉ https://bgol.in/2025/09/20/tool-chainage-marked-drone-videos/ Other Links:โฆฟ Math – Haversine Formula: https://en.wikipedia.org/wiki/Haversine_formulaโฆฟ Flight Visualizer: https://djitelemetryoverlay.com/srt-viewer/ โฆฟ Camera Telemetry Creator: https://goprotelemetryextractor.com/drone-heads-up-displayโฆฟ Video Editing Tool: https://filmora.wondershare.net/โฆฟ Google Earth: https://www.google.com/intl/en_in/earth/about/versions/โฆฟ Dronelink: https://www.dronelink.com/ Connect with me: https://www.linkedin.com/in/thevijayparmar/ Join BGol Community: https://bgol.in/register
Tool – Chainage-Marked Drone Videos
This app could not be embedded due to browser/security settings. Open DJI Chainage Extractor (opens in a new tab) Drone Chainage & SRT Processing A Streamlit application that automates extraction and processing of GPS metadata from DJI drone video .srt files, generates chainage markers along a reference alignment (KML), and produces synchronized SRT outputs and 3D visualizations. ๐ Purpose ๐ Features & Workflow ๐ Under the Hood: Mathematical Background 1. Haversine Formula Computes greatโcircle distance between two GPS points (ฯ1,ฮป1) and (ฯ2,ฮป2): ฮฯ=ฯ2โฯ1,ฮฮป=ฮป2โฮป1,a=sin2โก(ฮฯ/2)+cosโกฯ1,cosโกฯ2,sin2โก(ฮฮป/2),d=2Rarcsinโก(a), where: 2. Cumulative Chainage Given points P0,P1,โฆ,Pn: Ck=โi=1kd(Piโ1,Pi), where d() is the segment length from Haversine. 3. Regular Interval Markers To place markers every ฮ km:
Number to Words (India)
๐บ Triangle Sides Calculator
๐ RightโAngle Triangle Field Calculator A practical offline field tool for surveyors and engineers to quickly compute the third side of a rightโangled triangle.Ideal for marking right angles in the field using methods like 3โ4โ5 triangle or for custom dimensions. โจ Features ๐งฎ Triangle Computation ๐จ Interactive Visualization ๐ฅ๏ธ UI & Usability ๐ Formula & Explanation ๐ผ๏ธ Preview ๐ How to Use ๐ Example Use Case โก Why Use This Tool?
Traverse Adjustment Tool
How to Use? ๐ฏ Total Station Accuracy Visualizer A modern offline web tool to visualize and compare the angular accuracy vs. linear error of different Total Stations and a Theodolite.Ideal for surveyors and engineers when deciding what instrument suits their project requirements. โจ Features ๐ Supported Instruments ๐ Accuracy Visualization ๐งฎ Built-in Calculations ๐จ UI & Experience ๐ผ๏ธ Preview ๐ How to Use ๐ Example โก Why Use This Tool?
Total Station Accuracy Visualizer
๐ฏ Total Station Accuracy Visualizer A modern offline web tool to visualize and compare the angular accuracy vs. linear error of different Total Stations and a Theodolite.Ideal for surveyors and engineers when deciding what instrument suits their project requirements. โจ Features ๐ Supported Instruments ๐ Accuracy Visualization ๐งฎ Built-in Calculations ๐จ UI & Experience ๐ผ๏ธ Preview ๐ How to Use ๐ Example โก Why Use This Tool?
Surveyor Calculator
๐งฎ Surveyor Calculator A smart calculator built for surveyors and civil engineers, running fully offline in the browser.Beyond standard arithmetic, it includes engineeringโfocused tools for quick geometry, unit conversions, and field utilities. โจ Features ๐ข Standard Calculator ๐ Appearance & Usability โฐ More Functions (Engineering Toolkit) Click More to unlock advanced tools: ๐ Productivity ๐ผ๏ธ Preview ๐ How to Use ๐ Example Usage โก Why Use This Tool?
Polygon Partition Tool
How to Use? ๐งฉ Polygon Partition Tool A specialized offline polygon partitioning tool built for land surveyors, civil engineers, and GIS practitioners.It allows you to draw, import, partition, and calculate areas/perimeters of polygons directly in the browser.Perfect for fieldwork and planning tasks where advanced GIS software is not accessible. โจ Features ๐ Input & Setup โ๏ธ Partitioning ๐ Measurement & Units ๐ Outputs ๐จ UI & Usability ๐ผ๏ธ Preview ๐ How to Use ๐ Example CSV Input โก Why Use This Tool?
Multi-Converter (Linear, Area, Volume, Slope)
๐งญ Surveyor Multi-Converter A powerful all-in-one offline conversion tool designed for land surveyors and civil engineers.It helps in linear, area, volume, and slope conversions with support for both international units and local Indian units often used in field practice. Runs directly in your browser without internet โ perfect for fieldwork where network access is limited. โจ Features ๐ Linear Conversion ๐ Area Conversion ๐ฆ Volume Conversion โฐ๏ธ Slope Conversion & Visualization ๐ผ๏ธ Preview ๐ Productivity Boosters ๐ How to Use ๐ Example Usage โก Why Use This Tool?
Area Calculator of Known Shapes
๐ฆ Area Calculator of Known Shapes A fun and interactive browser-based tool to calculate the area of common 2D shapes such as:Square, Rectangle, Triangle, Circle, Trapezoid, and Parallelogram ๐.Runs completely offline and works on any device with a browser. โจ Features ๐ผ๏ธ Preview ๐ How to Use ๐ Example Input โก Why Use This Tool?