NAME
Geo::GDAL::FFI::Layer - A collection of vector features in GDAL
SYNOPSIS
DESCRIPTION
A set of (vector) features having a same schema (the same Defn object). Obtain a layer object by the CreateLayer or GetLayer method of a vector dataset object.
METHODS
GetDefn
my $defn = $layer->GetDefn;Returns the FeatureDefn object for this layer.
ResetReading
$layer->ResetReading;GetNextFeature
my $feature = $layer->GetNextFeature;GetFeature
my $feature = $layer->GetFeature($fid);SetFeature
$layer->SetFeature($feature);CreateFeature
$layer->CreateFeature($feature);DeleteFeature
$layer->DeleteFeature($fid);GetExtent $layer->GetExtent(); $layer->GetExtent(1);
Returns an array ref with [minx, miny, maxx, maxy]. Argument is a boolean to force calculation even if it is expensive.
Intersection, Union, SymDifference, Identity, Update, Clip, Erase
$result = $layer-><Method>($method, $args);Runs the <method> algorithm between layer and method layer. Named arguments are the following.
Result-
Optional, allows the user to define the result layer.
Options-
Optional, allows the user to define the options (see GDAL docs).
Progress-
Optional, the progress indicator callback.
ProgressData-
Optional, data for the progress callback.
LICENSE
This software is released under the Artistic License. See perlartistic.
AUTHOR
Ari Jolma - Ari.Jolma at gmail.com