GeoKantar | Surveying app for coordinates, parcel subdivision and DXF

Tools

Nine tools for the field and the office

Every tool works on its own and offline, and the results feed one workflow — from capturing a point in the field to a DXF you open in AutoCAD.

Coordinate transformation

Convert between Gauss-Krüger zones 5, 6, 7 and WGS84, with map preview and history.

GK5 · GK6 · GK7 · WGS84

Area & perimeternew

Parcel area, perimeter and edge lengths from typed coordinates or a GPS walk-around.

GPS walk · KML · CSV · DXF

COGO calculatornew

Inverse, radiation, line and circle intersection, plus area by coordinates — in degrees or gons.

inverse · radiation · intersect

Survey & stakeoutnew

GPS point capture with reading averaging, and compass navigation to a target point.

GPS · compass · CSV · DXF

Localizationnew

Helmert fit to control points with RMS and residuals, plus grid ↔ ground scale factor.

Helmert · RMS · CSF

Parcel subdivisionnew

Split a parcel by part count, area, frontage, road access or a manually drawn line.

DXF · CSV · GeoJSON · KML · SHP

Geometric leveling

Leveling computation across multiple stations, with automatic height differences and elevations.

multi-station · CSV

DXF to KML converter

Convert DXF files to KML for Google Earth, with automatic parcel area computation.

DXF → KML · m² · dunum · ha

Infrastructure

Infrastructure mapping on satellite imagery, manhole and pipeline attributes, DXF export with 13+ layers.

Mapbox · SQLite · DXF · A3

Infrastructure Modul

Sve što vam treba na terenu

Infrastructure modul objedinjuje uvoz podataka, interaktivno mapiranje, crtanje mreža i profesionalni CAD izvoz.

Open the dedicated product page for Infrastructure

Interaktivna mapa

Google Maps integracija sa satelitskim, hibridnim i standardnim prikazom. Klikabilni markeri sa detaljima tačaka i praćenje lokacije u realnom vremenu.

Satelitski, hibridni i standardni prikaz
GPS lokacija korisnika
Prilagodjene ikone po tipu infrastrukture
Dva režima crtanja: dodir i precizni mod

Uvoz podataka

Uvezite .txt i CSV fajlove sa geoprostornim koordinatama. Automatska detekcija zaglavlja i validacija podataka.

Transformacija koordinata

Automatska konverzija iz EPSG:8678 (Gauss-Krüger) u WGS84 sa sub-metarskom preciznošću.

Crtanje linija i mreža

Dva režima crtanja: slobodni dodir i precizni mod sa “snap-to-point” funkcijom za višestruke cevovode.

DXF izvoz

Profesionalni CAD izvoz kompatibilan sa AutoCAD-om. 13+ organizovanih slojeva sa bojama i simbolima.

Offline rad

Lokalna SQLite baza podataka. Svi podaci ostaju na uredjaju. Nije potreban internet za osnovno funkcionisanje.

Workflow

One job, from stake to CAD

The tools are not separate calculators — geometry captured in the field moves through all of them without being retyped.

Capture the boundary

Walk the parcel with GPS in Area & perimeter. Each point is averaged from several readings, so one bad fix never reaches the result.

Check what you captured

You immediately get area in m², dunums and hectares, the perimeter, and the length and bearing of every edge. If edges cross, the sketch shows it before you leave the site.

Split it

Parcel subdivision takes that same geometry. Enter a target area or a part count, pick the reference edge — the cut runs parallel to it, or perpendicular when you split by frontage.

Stake the new boundaries

New points go straight to stakeout. The arrow holds the bearing, the figure under it is remaining distance — you walk until it reaches zero.

Hand over the DXF

Parts come out sorted onto layers, with division lines and areas. It opens in AutoCAD with nothing left to tidy up.

Infrastruktura

Podrška za sve tipove infrastrukture

Specijalizovane ikone i slojevi za svaki tip komunalne infrastrukture.

Oborinska kanalizacija

Oborinski šahtovi (okrugli i četvrtasti), slivnici i oluk tačke

O, SL, OL

Fekalna kanalizacija

Fekalni šahtovi (okrugli i četvrtasti) sa svim atributima

Vodovodna mreža

Vodovodni šahtovi sa unutrašnjim linijama i centralnom tačkom

V, VO, VK

Električna infrastruktura

Električni šahtovi (okrugli i četvrtasti), kablovski vodovi

ST, STO, STK

Ulična rasveta

Kandelabri i stubovi ulične rasvete sa pozicijama

Hidranti

Hidrantske tačke sa koncentričnim krugovima za vodovodnu mrežu

DXF Izvoz

Profesionalni CAD izlaz

Generišite DXF fajlove potpuno kompatibilne sa AutoCAD-om i drugim CAD softverima. Organizovani slojevi, boje i simboli.

13+ slojeva

Organizovano po kategorijama: oborinska, fekalna, struja, voda, kandelabri

Simboli i blokovi

Prilagodjeni blokovi za različite tipove tačaka sa bojama

A4 inženjerski format

Standardizovani A4 crtež sa naslovnim blokom, sekcijama šahtova i metapodacima

KML konverzija

Konvertujte DXF u KML za vizualizaciju u Google Earth sa površinama parcela

projekat.dxf

01-Oborinska_simbol

01-Oborinska_linija

02-Fekalna_simbol

02-Fekalna_linija

03-Struja_simbol

03-Struja_linija

04-Voda_simbol

04-Voda_linija

05-Rasvjeta_simbol

00-Ostalo

SEKCIJE_SAHTOVA

Upravljanje

Sve informacije na jednom mjestu

Kompletno upravljanje projektima sa svim metapodacima.

Podaci o projektu

Naziv projekta i lokacija
Datum izrade
Investitor i izvodjač
Katastarska zona
Razmera crteža

Atributi tačaka

Z koordinata (nadmorska visina)
Dubina šahta
Tip poklopca
Materijal zidova
Kota poklopca i dna

Atributi cevovoda

Prečnik cevi
Dubina početka i kraja
Broj cevi izmedju šahtova
Višestruki paralelni cevovodi
Automatske oznake rastojanja

Specification

How it is built

No server dependency for computation: transformations, areas and DXF are produced on the device.

PlatformsiOS 16.4+ · iPadOS · Android

Coordinate systemsGauss-Krüger zones 5, 6, 7 · WGS84 (Bessel → WGS84, 7-parameter Helmert)

Transformationproj4 — the same library professional GIS software uses

MapsMapbox with satellite imagery and offline cache

ImportDXF · CSV / TXT · GeoJSON · KML · SHP

ExportDXF (13+ layers, blocks, A3 sheet) · CSV · KML · GeoJSON

DataOn-device SQLite, optional account sync

OfflineComplete — every computation runs locally

Questions

Frequently asked questions

Answers to the most common questions about GeoKantar.

How do I transform coordinates from WGS84 to Gauss-Kruger?

Open the Coordinate transformation tool in GeoKantar, enter WGS84 latitude/longitude and pick a Gauss-Kruger output zone (6 or 7 for Bosnia and Herzegovina). The transformation runs through proj4 using a 7-parameter Helmert shift from the Bessel ellipsoid to WGS84.

Does the app work without internet?

Yes. GeoKantar is built for fieldwork and runs fully offline. All nine tools compute locally on the device, including transformations, areas, parcel subdivision and DXF export.

Which coordinate systems are supported?

WGS84 and Gauss-Kruger zones 5, 6 and 7 (Bessel / MGI ellipsoid), covering Bosnia and Herzegovina, Serbia and Croatia. For an arbitrary local system, the Localization tool fits your measurements to known control points with a Helmert transformation.

How does parcel subdivision work?

The Parcel subdivision tool imports a parcel from DXF, CSV, GeoJSON, KML or SHP, then splits it one of five ways: by number of equal-area parts, by a target area, by frontage, by road access, or along a line you draw. Parts export to DXF, CSV, GeoJSON or KML.

What does stakeout do?

The Survey and stakeout tool captures points by GPS with multi-reading averaging, then navigates you to a target point: an arrow shows the bearing and the figure below it shows remaining distance. Captured points export to CSV or DXF.

What is the grid-to-ground factor for?

A grid distance lies in the projection plane; a ground distance is the real distance on site. The Localization tool computes the grid factor, elevation factor and combined factor (CSF) for your location and height, and converts distances both ways.

What is DXF export used for?

DXF is the standard exchange format for technical drawings used by software such as AutoCAD. GeoKantar produces DXF with 13+ layers, block definitions and a prepared A3 sheet, ready to open in CAD software.

Which devices can run GeoKantar?

The app is on the App Store for iPhone and iPad (iOS 16.4 and later) and on Google Play for Android phones and tablets.

Nine surveying tools
that work with no signal.