Struct flatgeobuf::FeatureReader

pub struct FeatureReader { /* fields omitted */ }

FlatGeobuf feature reader

Methods

impl FeatureReader

pub fn to_geojson<'a, R: Read + Seek, W: Write>(
    &mut self,
    reader: R,
    header: &Header,
    out: &'a mut W
) -> Result<(), Error>

Convert selected FlatGeoBuf features to GeoJSON

Usage:

 let mut freader = FeatureReader::select_all(&mut filein, &header)?;
 let mut fout = BufWriter::new(File::create("countries.json")?);
 freader.to_geojson(&mut filein, &header, &mut fout)

impl FeatureReader

pub fn select_all<R: Read + Seek>(
    reader: R,
    header: &Header
) -> Result<Self, Error>

Skip R-Tree index

pub fn select_bbox<R: Read + Seek>(
    reader: R,
    header: &Header,
    min_x: f64,
    min_y: f64,
    max_x: f64,
    max_y: f64
) -> Result<Self, Error>

Read R-Tree index and build filter for features within bbox

pub fn filter_count(&self) -> Option<usize>

Number of selected features

pub fn next<R: Read + Seek>(&mut self, reader: R) -> Result<Feature, Error>

Read next feature

pub fn cur_feature(&self) -> Feature

Return current feature