Struct FeatureWriter 

pub struct FeatureWriter<'w, 'a> { /* private fields */ }

A feature being written into a LayerWriter.

Implementations

impl<'a> FeatureWriter<'_, 'a>

pub fn id(&mut self, id: Option<u64>) -> &mut Self

pub fn property( &mut self, key: PropertyKey, value: impl Into<PropValueRef<'a>>, ) -> MltResult<&mut Self>

Sets the feature’s value in the key column, which must be of the value’s kind.

pub fn points( &mut self, coords: impl IntoIterator<Item = Coord<i32>>, ) -> MltResult<&mut Self>

Adds points to a GeometryType::Point (which holds exactly one) or GeometryType::MultiPoint feature.

pub fn line( &mut self, coords: impl IntoIterator<Item = Coord<i32>>, ) -> MltResult<&mut Self>

Adds a line to a GeometryType::LineString (which holds exactly one) or GeometryType::MultiLineString feature.

pub fn exterior_ring( &mut self, coords: impl IntoIterator<Item = Coord<i32>>, ) -> MltResult<&mut Self>

Starts a polygon of a GeometryType::Polygon (which holds exactly one) or GeometryType::MultiPolygon feature with its exterior ring, which may be open or closed.

pub fn hole( &mut self, coords: impl IntoIterator<Item = Coord<i32>>, ) -> MltResult<&mut Self>

Adds a hole to the polygon the last Self::exterior_ring started, which may be open or closed.

pub fn finish(self) -> MltResult<()>

Adds the feature to the layer, or discards it if its geometry is not of its type.

Trait Implementations

impl Drop for FeatureWriter<'_, '_>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.