---
name: "Geo::WKT::Simple"
section: "3pm"
platform: "linux"
package: "libgeo-wkt-simple-perl"
version: "0.05-1.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Geo::WKT::Simple"
---

# Geo::WKT::Simple(3pm)

Simple utils to parse/build Well Known Text(WKT) format string.

## NAME

Geo::WKT::Simple - Simple utils to parse/build Well Known Text(WKT) format string.

## SYNOPSIS

```
  use Geo::WKT::Simple;           # Export all
  or
  use Geo::WKT::Simple ':parse';  # Only WKT parser functions
  or
  use Geo::WKT::Simple ':make';   # Only WKT builder functions
  # WKT POINT
  wkt_parse_point('POINT(10 20)');                  #=> (10 20)
  wkt_make_point(10, 20);                           #=> POINT(10 20)
  # WKT LINESTRING
  wkt_parse_linestring('LINESTRING(1 2, 3 4)');     #=> ([ 1, 2 ], [ 3, 4 ])
  wkt_make_linestring([ 1, 2 ], [ 3, 4 ]);          #=> LINESTRING(1 2, 3 4)
  # WKT POLYGON
  wkt_parse_polygon('POLYGON((1 2, 3 4, 5 6, 1 2), (1 2, 3 4, 5 6, 1 2))');
  #=> (
  #      [ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ], [ 1, 2 ] ],
  #      [ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ], [ 1, 2 ] ],
  #   )
  wkt_make_polygon(
      [ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ], [ 1, 2 ] ],
      [ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ], [ 1, 2 ] ],
  ); #=> 'POLYGON((1 2, 3 4, 5 6, 1 2), (1 2, 3 4, 5 6, 1 2))'
  # And like so on for (MULTI)LINESTRING|POLYGON
  # WKT GEOMETRYCOLLECTION
  wkt_parse_geometrycollection(
      'GEOMETRYCOLLECTION(POINT(10 20), LINESTRING(10 20, 30 40))'
  ); #=> ([ POINT => [ 10, 20 ] ], [ LINESTRING => [ [ 10, 20 ], [ 30, 40 ] ] ])
  wkt_make_geometrycollection(
      [ POINT => [ 10, 20 ] ], [ LINESTRING => [ [ 10, 20 ], [ 30, 40 ] ] ]
  ); #=> 'GEOMETRYCOLLECTION(POINT(10 20), LINESTRING(10 20, 30 40))'
  # If you don't like too many exported symbols:
  use Geo::WKT::Simple qw/ wkt_parse wkt_make /;
  wkt_parse(POINT => 'POINT(10 20)');
  wkt_make(POINT => [ 10, 20 ]);
```

## DESCRIPTION

Geo::WKT::Simple is a module to provide simple parser/builder for Well Known Text(WKT) format string.

This module can parse/build WKT format string into/from pure perl data structure.

### Why not Geo::WKT ?

There is few reasons.

- \- I just need simple return value represented by pure perl data structure. Geo::WKT returns results as a Geo::\* instances which represents each type of geodetic components.

  - \- Geo::Proj4 dependencies. Geo::Proj4 depends to libproj4

  - \- I need to support MULTI(LINESTRING\|POLYGON).

  ## FUNCTIONS

See SYNOPSIS section for usages.

### wkt\_parse\_point()

Parse WKT Point string.

### wkt\_parse\_linestring()

Parse WKT Linestring string.

### wkt\_parse\_multilinestring()

Parse WKT MultiLinestring string.

### wkt\_parse\_polygon()

Parse WKT Polygon string.

### wkt\_parse\_multipolygon()

Parse WKT MultiPolygon string.

### wkt\_parse\_geometrycollection()

Parse WKT GeometryCollection string.

### wkt\_parse()

Dispatch to parser which specified in first argument.

```
  wkt_parse(POINT => 'POINT(10 20)') is equivalent to wkt_parse_point('POINT(10 20)')
```

### wkt\_make\_point()

Build WKT Point string.

### wkt\_make\_linestring()

Build WKT Linestring string.

### wkt\_make\_multilinestring()

Build WKT MultiLinestring string.

### wkt\_make\_polygon()

Build WKT Polygon string.

### wkt\_make\_multipolygon()

Build WKT MultiPolygon string.

### wkt\_make\_geometrycollection()

Build WKT GeometryCollection string.

### wkt\_make()

Dispatch to builder function which specified in first argument.

```
  wkt_make(POINT => [ 10, 20 ]) is equivalent to wkt_make_point(10, 20)
```

## AUTHOR

Yuto KAWAMURA(kawamuray) \<kawamuray.dadada {at} gmail.com\>

## SEE ALSO

Geo::WKT: As same as this module except few things.

Well-known text: http://en.wikipedia.org/wiki/Well-known\_text

## LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.