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The C<Geo::WellKnownText> module contains a single function:


head

C<from-wkt> takes a single C<Str> parameter, and returns a single C<Geo::Geometry> object corresponding to the wkt specification, or a C<Failure> if the contents of the string cannot be interpreted as a Geometry object.


The conversion is case-insensitive, and optional whitespace may be included in various places. Thus the following strings will all produce the same object:


code

=begin code
    PointZ(123 456 789)
    Point Z (123 456 789)
    Point Z(123 456 789)
    pointz (123 456 789)
=end code


The C<Geo::WellKnownText::Grammar> module contains a single grammar C<Geo::WellKnownText::Grammar::WKT>.


This is the same grammar used by the C<Geo::WellKnownText> module, but it can be used separately to parse WKT strings.


=begin code
    my $results = Geo::WellKnownText::Grammar::WKT.parse($string, actions => My::Actions);
=end code


The actions used by C<Geo::WellKnownText::from-wkt> are available in C<Geo::WellKnownText::WKT-Actions>, but in that case you might as well use C<from-wkt> described above.


The actions class will need to include the following methods (36 in total):


table_head

 --------------+--------+---------------------


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table

=begin table
 Geometry type | Method | Available Parameters
 --------------+--------+---------------------
 Point[Z][M]         | point[z][m]  | $<value> — an array containing the values for x, y, z and m as appropriate
 LineString[Z][M]    | linestring[z][m]-text | $<point[z][m]> — an array of whatever the relevant point method passed to make.
 LinearRing[Z][M]    | linearring[z][m]-text | $<point[z][m]> — and array of whatever the relevant point method passed to make.
 Polygon[Z][M]       | polygon[z][m]-text    | $<linearring[z][m]-text — an array of whatever the appropriate linearring-text method passed to make.
 PolyhedralSurface[Z][M] | polyhedralsurface[z][m]-text | $<polygon[z][m]-text — an array of whatever the appropriate polygon-text method passed to make.
 MultiPoint[Z][M]    | multipoint[z][m]-text | $<point[z][m]> — an array of whatever the relevant point method passed to make.
 MultiLineString[Z][M] | multilinestring[z][m]-text | $<linestring[z][m]-text> — an array of whatever the relevant linestring-text method passed to make.
 MultiPolygon[Z][M] | multipolygon[z][m]-text | $<polygon[z][m]-text — an array of whatever the appropriate polygon-text method passed to make.
 GeometryCollection[Z][M] | geometrycollection[z][m]-tagged-text  | $<geometry[z][m]-tagged-text> — an array of whatever the relevant geometry-text method passed to make.
=end table


Geom::WellKnownText


The C<Geo::WellKnownBinary> module contains a single function:


C<from-wkb> takes a single C<Buf> parameter, and returns a single C<Geo::Geometry> object corresponding to the wkb specification, or a C<Failure> if the contents of the Buff cannot be interpreted as a geometry object.


Geo::WellKnownBinary


The Raku Knowledge Base


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README

Geo::WellKnownBinary v0.1.0

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