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WKT (Well-Known Text)

Open Beta

.wkt · text/plain

WKT हे भूमितींच्या मजकूर प्रतिनिधित्वासाठीचे स्वरूप आहे, जे डेटाबेस (PostGIS, SpatiaLite) आणि GIS अनुप्रयोगांत वापरले जाते. साधे आणि एकत्रित करायला सोपे.

आता WKT निर्यात करा ✨ Open Beta — विनामूल्य, कोणत्याही मर्यादा नाहीत

मुख्य वैशिष्ट्ये

✓मजकूर स्वरूप

✓OGC मानक

✓सोपे DB एकीकरण

✓सर्व भूमिती प्रकारांना आधार

WKT स्वरूपाबद्दल

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 फाइल्स कोणता कार्यक्रम उघडतो

खालील कार्यक्रम आणि अनुप्रयोग OSM2CDR मधून निर्यात केलेल्या WKT (Well-Known Text) (.wkt) फाइल्स उघडू, संपादित करू आणि त्यांवर काम करू शकतात:

💻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 नकाशे कोण वापरतो

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डेटाबेस (PostGIS)

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

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प्रोग्रामिंग

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

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GIS विश्लेषण

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

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प्रणाली एकीकरण

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

WKT कसे निर्यात करावे

क्षेत्र निवडा

osm2cdr.ru वरील परस्परसंवादी नकाशावर आयत किंवा बहुभुज काढा

WKT निवडा

127 उपलब्ध निर्यात स्वरूपांच्या यादीतून WKT (Well-Known Text) निवडा

निर्यात

«निर्यात» क्लिक करा आणि 1-5 मिनिटांत आपली .wkt फाइल मिळवा

डाउनलोड

तयार WKT फाइल डाउनलोड करा आणि ती PostGIS मध्ये उघडा

निर्यातीनंतर कसे उघडावे

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.