Lexer and parser library for WKT/EWKT spatial object strings.
There are two use patterns for the parser. The value to be parsed can be passed into the constructor, then parse()
called on the returned Parser object:
$input = 'POLYGON((0 0,10 0,10 10,0 10,0 0))';
$parser = new Parser($input);
$value = $parser->parse();If many values need to be parsed, a single Parser instance can be used:
$input1 = 'POLYGON((0 0,10 0,10 10,0 10,0 0))';
$input2 = 'POINT(0,0)';
$parser = new Parser();
$value1 = $parser->parse($input1);
$value2 = $parser->parse($input2);The parser will return an array with the keys srid, type, and value.
typeis the spatial object type (POINT, LINESTRING, etc.)valuewill contain an array with integer or float values for points, or nested arrays containing these based on spatial object type.sridis the SRID if EWKT value was parsed, null otherwise.
The Lexer and Parser will throw expections implementing interface CrEOF\Geo\WKT\Exception\ExceptionInterface.