---
name: "Geo::GDAL::FFI::FeatureDefn"
section: "3pm"
platform: "linux"
package: "libgeo-gdal-ffi-perl"
version: "0.12-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Geo::GDAL::FFI::FeatureDefn"
---

# Geo::GDAL::FFI::FeatureDefn(3pm)

A GDAL feature schema

## NAME

Geo::GDAL::FFI::FeatureDefn - A GDAL feature schema

## SYNOPSIS

## DESCRIPTION

## METHODS

### new

```
 $defn = Geo::GDAL::FFI::FeatureDefn->new({Fields => [...], GeometryType => 'Point'});
```

Create a new FeatureDefn object.

The named arguments (optional) are the following.

- "Name"

  Optional; the name for this feature class; default is the empty string.

- "Fields"

  Optional, a reference to an array of FieldDefn objects or schemas.

- "GeometryFields"

  Optional, a reference to an array of GeomFieldDefn objects or schemas.

- "GeometryType"

  Optional, the type for the first geometry field; default is Unknown. Note that this argument is ignored if GeometryFields is given.

- "StyleIgnored"

  ### GetSchema

Returns the definition as a perl data structure.

### GetFieldDefn

```
 my $field_defn = $defn->GetFieldDefn($name);
```

Get the specified non spatial field object. If the argument is explicitly an integer and not a string, it is taken as the field index.

### GetFieldDefns

```
 my @field_defns = $defn->GetFieldDefns;
```

### GetGeomFieldDefn

```
 my $geom_field_defn = $defn->GetGeomFieldDefn($name);
```

Get the specified spatial field object. If the argument is explicitly an integer and not a string, it is taken as the field index.

### GetGeomFieldDefns

```
 my @geom_field_defns = $defn->GetGeomFieldDefns;
```

### SetGeometryIgnored

```
 $defn->SetGeometryIgnored($arg);
```

Ignore the first geometry field when reading features from a layer. To not ignore the first geometry field call this method with defined but false (0) argument.

### IsGeometryIgnored

```
 my $is = $defn->IsGeometryIgnored;
```

Is the first geometry field ignored when reading features from a layer.

## LICENSE

This software is released under the Artistic License. See perlartistic.

## AUTHOR

Ari Jolma - Ari.Jolma at gmail.com

## SEE ALSO

Geo::GDAL::FFI

Alien::gdal, FFI::Platypus, \<http://www.gdal.org\>