30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
[/============================================================================
|
|
Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
|
|
Copyright (c) 2009-2014 Barend Gehrels, Amsterdam, the Netherlands.
|
|
Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland.
|
|
|
|
Use, modification and distribution is subject to the Boost Software License,
|
|
Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================/]
|
|
|
|
WKT is a general markup format in ASCII.
|
|
It is described in detail on [@http://en.wikipedia.org/wiki/Well-known_text Wikipedia]
|
|
|
|
Boost Geometry supports the common formats (POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON).
|
|
|
|
Because Boost.Geometry also supports Box and Segment geometries, which are not standard OGC geometries, there are some extensions:
|
|
|
|
[heading Box]
|
|
* can be read from WKT by specifying either a polygon (with 4 points) or a specific BOX string (non OGC)
|
|
* streamed to WKT as a POLYGON
|
|
|
|
[heading Segment]
|
|
* can be read from WKT by specifying either a linestring (with 2 points) or a specific SEGMENT string (non OGC)
|
|
* streamed to WKT as a LINESTRING
|
|
|
|
[heading Ring]
|
|
* can be read from WKT by specifying a polygon (with no holes)
|
|
* streamed to WKT as POLYGON
|