Skip to drone map tool
CalcsBay
Search
Open navigation menu

Private browser-based site mapping

Drone Map & Markup

Create a 2D site map from drone photos, take measurements, add professional markups and export a PDF. Processing happens locally on your device.

Your drone photos stay on your device.

Local processing

Your drone photos stay on your device.

Select a JPG flight set to inspect metadata, review camera positions and create a local 2D stitched drone map. Raw photos are never uploaded to CalcsBay.

Drop JPG drone photos here

Multi-file selection · desktop Chrome or Edge recommended
For best results, use downward-facing grid-flight photos with substantial overlap.
Typical guidance: 80–85% front overlap and 70–80% side overlap.

Review the flight

Inspect GPS positions, sequence and metadata before processing.

Measure & mark up

Calibrate scale, add editable construction notes and measurements.

Export & continue

Save .cbmap, reopen editable PDFs and export professional sheets.

Local 2D drone mapping for practical site work

Use CalcsBay to inspect embedded photo metadata, preview the capture path, run a browser-local 2D stitching workflow and move the result straight into a construction-style editor. No installation, account or raw-photo upload is required.

2D map workflow

ORB feature matching, RANSAC homographies and feathered pixel blending run locally.

Calibrated measurement

Measure distance, polylines, area and perimeter after setting a known scale.

Editable markup

Keep arrows, notes, shapes, highlights and measurement geometry as separate objects.

Local projects

Autosave in IndexedDB and download one portable `.cbmap` project file.

Supported workflow and browsers

Desktop Chrome and Edge are the primary V1 targets because they provide the most consistent worker, canvas and local-storage capabilities. Firefox and Safari receive capability-based best effort. Large datasets may exceed browser memory; start with 20–100 photos and split very large flights.

Approximate and calibrated scale

GPS and camera metadata can provide an approximate scale, but photo placement is accepted only from visual feature matches. For important planning measurements, choose two visible points with a known real distance and calibrate the project. The calibration, unit and editable measurement geometry remain stored with the project.

Current mapping limitation

CalcsBay V1 creates a general-purpose Stitched Drone Map. It does not claim terrain correction, survey-grade orthorectification, centimetre accuracy, GCP adjustment, DSM/DTM production or certified land-survey output. Real drone image stitching has been validated on an initial real-world dataset. Broader device, flight-pattern and dataset-size validation is still in progress.

Privacy by design

Filenames, GPS coordinates, EXIF metadata, thumbnails, project details and markups are not sent through CalcsBay analytics. Normal anonymous page analytics remain governed by the existing site consent configuration.

Disclaimer: Measurements and generated maps are intended for planning, estimation and general site use unless independently verified. Results should not be treated as certified land-survey data.