WKT (Well-Known Text), OGC standardına göre geometrik nesnelerin metin temsilidir.

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WKT (Well-Known Text)

Open Beta

.wkt · text/plain

WKT, veritabanlarında (PostGIS, SpatiaLite) ve CBS uygulamalarında kullanılan, geometriler için bir metin gösterim biçimidir. Basit ve entegre edilmesi kolaydır.

WKT formatını şimdi dışa aktarın ✨ Açık Beta — ücretsiz, sınırsız

Temel Özellikler

✓Metin biçimi

✓OGC standardı

✓Kolay veritabanı entegrasyonu

✓Tüm geometri türleri desteklenir

WKT Formatı Hakkında

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.

WKT Dosyalarını Hangi Program Açar

Aşağıdaki programlar ve uygulamalar, OSM2CDR'den dışa aktarılan WKT (Well-Known Text) (.wkt) dosyalarını açabilir, düzenleyebilir ve bunlarla çalışabilir:

💻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.

WKT Haritalarını Kimler Kullanır

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Veritabanları (PostGIS)

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

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Programlama

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

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CBS analizi

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

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Sistem entegrasyonu

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

WKT Nasıl Dışa Aktarılır

Alan seçin

osm2cdr.ru üzerindeki etkileşimli haritada bir dikdörtgen veya çokgen çizin

WKT seçin

Mevcut 127 dışa aktarma formatı listesinden WKT (Well-Known Text) seçin

Dışa aktar

Dışa Aktar'a tıklayın ve .wkt dosyanızı 1-5 dakika içinde alın

İndir

Hazır WKT dosyasını indirin ve PostGIS ile açın

Dışa aktardıktan sonra nasıl açılır

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.