Struct OpenVectorLayer

pub struct OpenVectorLayer {
    pub version: u16,
    pub name: String,
    pub extent: Extent,
    pub features: Vec<OpenVectorFeature>,
    /* private fields */
}

The Open Vector Layer class represents a layer in an Open Vector Tile. Contains an extent, name, version, and features. The features will utilize the layer extent to decode geometry.

Fields

version: u16

the version of the vector tile

name: String

the name of the layer

extent: Extent

the extent of the vector layer

features: Vec<OpenVectorFeature>

the features in the layer

Implementations

impl OpenVectorLayer

pub fn new(cache: Rc<RefCell<ColumnCacheReader>>) -> OpenVectorLayer

Create a new OpenVectorLayer

Trait Implementations

impl Debug for OpenVectorLayer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl ProtoRead for OpenVectorLayer

fn read(&mut self, tag: u64, pb: &mut Protobuf)

The read method is used to read a field from a protobuf message. The tag parameter is used to determine which field to read into the struct. The pbf parameter is used to read the data in the appropriate format.

impl VectorLayerMethods for OpenVectorLayer

fn version(&self) -> u16

the version of the vector tile layer.

fn name(&self) -> String

the name of the layer

fn extent(&self) -> usize

the extent of the vector tile (only 512, 1_024, 2_048, 4_096, and 8_192 are supported for the open spec)

fn len(&self) -> usize

length (layer count)

fn is_empty(&self) -> bool

empty (layer count is 0)

fn feature(&mut self, i: usize) -> Option<&mut dyn VectorFeatureMethods>

grab a feature from the layer