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KB10951 - WKT data format and its use in the Editor.

OpenGIS WKT (Well Known Text representation of geometry) is a human readable text format specification used to represent the geometry of a GIS shape, e.g., polygon, polyline, point, multi-point, and some other geometric objects. An example of a WKT string representing a simple polygon formed by four vertices (with coordinate values rounded to one decimal place) is:

POLYGON ((30.4 10.2, 40.0 40.0, 20.7 40.0, 10.2 20.5, 30.4 10.2))

WKT format is typically used for the interchange of geometrical data. TatukGIS support for WKT enables a user to copy and paste a WKT string defining the geometry of a shape into the Editor’s Clipboard feature, from which it can be rendered in a temporary layer for further use. Demonstrations in the following blogs include the step of rending a polygon provided as a WKT string:

Metes-and-Bounds Survey Descriptions in GIS Mapping
Firefly Cartography with TatukGIS Software

Authoritative documentation of the WKT format and related information is provided by the Open Geospatial Consortium (www.ogc.org). A more concise and easy to understand description of the WKT format can be found at Wikipedia. Visit: Well-known text representation of geometry - Wikipedia.

Wikipedia also offers concise descriptions of other TatukGIS supported OGC geospatial data formats and protocols, including the following text-based interchange formats:

GML - Geography Markup Language
KML - Keyhole Markup Language
JSON - JavaScript Object Notation

Created: November 02, 2023, Modified: March 29, 2024