WKT (Well-Known Text) adalah representasi teks dari objek geometris sesuai standar OGC.

📝

WKT (Well-Known Text)

Open Beta

.wkt · text/plain

WKT adalah format representasi teks untuk geometri, yang digunakan dalam basis data (PostGIS, SpatiaLite) dan aplikasi GIS. Sederhana dan mudah diintegrasikan.

Ekspor WKT sekarang ✨ Open Beta — gratis, tanpa batas

Fitur Utama

✓Format teks

✓Standar OGC

✓Integrasi basis data yang mudah

✓Semua jenis geometri didukung

Tentang Format WKT

WKT (Well-Known Text) is the textual encoding of geometry from the OGC standard: POINT(37.6177 55.7558), LINESTRING(...), POLYGON((...)). It is understood by every spatial database and library — PostGIS, SpatiaLite, Shapely, JTS, GEOS — and it can be read by eye, which makes the format indispensable while debugging.

The export is taken when geometry is needed as text: to paste into an SQL query, to put into a test, to pass coordinates to someone else's system, to take a quick look at what came out of the selected area at all.

The output is a single text file in UTF-8. At the top are comments with the bounding box of the area and the coordinate system, then it goes layer by layer: a line like "-- layer: roads" with one geometry per line underneath it. Coordinates are in WGS84 (EPSG:4326) with six decimal places — that is about ten centimeters on the ground.

One important thing: WKT stores shapes only. There are no names, types or other OpenStreetMap tags in the file — if you need attributes, take GeoJSON, GeoPackage or a CSV with a WKT column.

Program Apa yang Membuka File WKT

Program dan aplikasi berikut dapat membuka, menyunting, dan mengolah file WKT (Well-Known Text) (.wkt) yang diekspor dari OSM2CDR:

💻PostGIS 💻SpatiaLite 🌎QGIS 💻Shapely (Python) 💻JTS (Java) 💻GEOS

Format specifications

Open standard
3D coordinates supported
Lossless (no quality loss)
No attributes
Output: 1 file
Well-Known Text (OGC Simple Features). One geometry per line, human-readable. Direct INSERT into PostGIS / Spatialite.

Siapa yang Menggunakan Peta WKT

🏗

Basis data (PostGIS)

Geometry is pasted into SQL directly through ST_GeomFromText — with no converters and no intermediate files.

💻

Pemrograman

Convenient material for tests and debugging: the shape is visible to the eye right in the source.

📊

Analisis GIS

Quick exchange of geometry between GIS tools, all of which understand WKT.

🎨

Integrasi sistem

Passing coordinates to an adjacent system that accepts plain text rather than GIS format files.

Cara Mengekspor WKT

Pilih area

Gambar persegi panjang atau poligon pada peta interaktif di osm2cdr.ru

Pilih WKT

Pilih WKT (Well-Known Text) dari daftar 127 format ekspor yang tersedia

Ekspor

Klik Ekspor dan terima file .wkt Anda dalam 1-5 menit

Unduh

Unduh file WKT yang sudah siap dan buka di PostGIS

Cara Membuka Setelah Ekspor

PostGIS — paste the lines as they are: INSERT ... VALUES (ST_GeomFromText('POLYGON((...))', 4326)); the SRID must be specified.
Python — from shapely import wkt, then wkt.loads(line) line by line, skipping the lines that begin with two hyphens.
QGIS — the QuickWKT plugin pastes geometry from the clipboard onto a temporary layer; for a full-fledged layer it is easier to download GeoJSON right away.
Tables — WKT is understood by CSV import in QGIS: "Add Delimited Text Layer", with geometry from the WKT field.
Checking — ST_IsValid in PostGIS or shapely.is_valid: self-intersections after simplification do happen, and it is better to learn about them before loading into a database.