Struct flatgeobuf::FgbWriter
source · pub struct FgbWriter<'a> { /* private fields */ }
Expand description
FlatGeobuf dataset writer
§Usage example:
use flatgeobuf::*;
use geozero::geojson::GeoJsonReader;
use geozero::GeozeroDatasource;
let mut fgb = FgbWriter::create("countries", GeometryType::MultiPolygon)?;
let mut fin = BufReader::new(File::open("countries.geojson")?);
let mut reader = GeoJsonReader(&mut fin);
reader.process(&mut fgb)?;
let mut fout = BufWriter::new(File::create("countries.fgb")?);
fgb.write(&mut fout)?;
Implementations§
source§impl FgbWriter<'_>
impl FgbWriter<'_>
sourcepub fn add_feature(&mut self, feature: impl GeozeroDatasource) -> Result<()>
pub fn add_feature(&mut self, feature: impl GeozeroDatasource) -> Result<()>
Add a new feature.
§Usage example:
use geozero::geojson::GeoJson;
let geojson = GeoJson(r#"{"type": "Feature", "properties": {"fid": 42, "name": "New Zealand"}, "geometry": {"type": "Point", "coordinates": [1, 1]}}"#);
fgb.add_feature(geojson).ok();
sourcepub fn add_feature_geom<F>(
&mut self,
geom: impl GeozeroGeometry,
cfgfn: F
) -> Result<()>where
F: FnOnce(&mut FeatureWriter<'_>),
pub fn add_feature_geom<F>(
&mut self,
geom: impl GeozeroGeometry,
cfgfn: F
) -> Result<()>where
F: FnOnce(&mut FeatureWriter<'_>),
Add a new feature from a GeozeroGeometry
.
§Usage example:
use geozero::geojson::GeoJson;
use geozero::{ColumnValue, PropertyProcessor};
let geom = GeoJson(r#"{"type": "Point", "coordinates": [1, 1]}"#);
fgb.add_feature_geom(geom, |feat| {
feat.property(0, "fid", &ColumnValue::Long(43)).unwrap();
feat.property(1, "name", &ColumnValue::String("South Africa"))
.unwrap();
})
.ok();
source§impl<'a> FgbWriter<'a>
impl<'a> FgbWriter<'a>
sourcepub fn create(name: &str, geometry_type: GeometryType) -> Result<Self>
pub fn create(name: &str, geometry_type: GeometryType) -> Result<Self>
Configure FlatGeobuf headers for creating a new file with default options
§Usage example:
let mut fgb = FgbWriter::create("countries", GeometryType::MultiPolygon).unwrap();
sourcepub fn create_with_options(
name: &str,
geometry_type: GeometryType,
options: FgbWriterOptions<'_>
) -> Result<Self>
pub fn create_with_options( name: &str, geometry_type: GeometryType, options: FgbWriterOptions<'_> ) -> Result<Self>
Configure FlatGeobuf headers for creating a new file
§Usage example:
let mut fgb = FgbWriter::create_with_options(
"countries",
GeometryType::MultiPolygon,
FgbWriterOptions {
description: Some("Country polygons"),
write_index: false,
crs: FgbCrs {
code: 4326,
..Default::default()
},
..Default::default()
},
)
.unwrap();
sourcepub fn add_column<F>(&mut self, name: &str, col_type: ColumnType, cfgfn: F)
pub fn add_column<F>(&mut self, name: &str, col_type: ColumnType, cfgfn: F)
Add a new column.
§Usage example:
fgb.add_column("fid", ColumnType::ULong, |_fbb, col| {
col.nullable = false;
});
Trait Implementations§
source§impl FeatureProcessor for FgbWriter<'_>
impl FeatureProcessor for FgbWriter<'_>
source§fn dataset_begin(&mut self, name: Option<&str>) -> Result<(), GeozeroError>
fn dataset_begin(&mut self, name: Option<&str>) -> Result<(), GeozeroError>
Begin of dataset processing Read more
source§fn dataset_end(&mut self) -> Result<(), GeozeroError>
fn dataset_end(&mut self) -> Result<(), GeozeroError>
End of dataset processing Read more
source§fn feature_begin(&mut self, idx: u64) -> Result<(), GeozeroError>
fn feature_begin(&mut self, idx: u64) -> Result<(), GeozeroError>
Begin of feature processing Read more
source§fn properties_begin(&mut self) -> Result<(), GeozeroError>
fn properties_begin(&mut self) -> Result<(), GeozeroError>
Begin of feature property processing Read more
source§fn properties_end(&mut self) -> Result<(), GeozeroError>
fn properties_end(&mut self) -> Result<(), GeozeroError>
End of feature property processing
source§fn geometry_begin(&mut self) -> Result<(), GeozeroError>
fn geometry_begin(&mut self) -> Result<(), GeozeroError>
Begin of feature geometry processing Read more
source§fn geometry_end(&mut self) -> Result<(), GeozeroError>
fn geometry_end(&mut self) -> Result<(), GeozeroError>
End of feature geometry processing
source§impl GeomProcessor for FgbWriter<'_>
impl GeomProcessor for FgbWriter<'_>
source§fn xy(&mut self, x: f64, y: f64, idx: usize) -> Result<()>
fn xy(&mut self, x: f64, y: f64, idx: usize) -> Result<()>
Process coordinate with x,y dimensions
source§fn coordinate(
&mut self,
x: f64,
y: f64,
z: Option<f64>,
m: Option<f64>,
t: Option<f64>,
tm: Option<u64>,
idx: usize
) -> Result<()>
fn coordinate( &mut self, x: f64, y: f64, z: Option<f64>, m: Option<f64>, t: Option<f64>, tm: Option<u64>, idx: usize ) -> Result<()>
Process coordinate with all requested dimensions
source§fn multipoint_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn multipoint_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of MultiPoint processing Read more
source§fn linestring_begin(
&mut self,
tagged: bool,
size: usize,
idx: usize
) -> Result<()>
fn linestring_begin( &mut self, tagged: bool, size: usize, idx: usize ) -> Result<()>
Begin of
LineString
processing Read moresource§fn linestring_end(&mut self, tagged: bool, idx: usize) -> Result<()>
fn linestring_end(&mut self, tagged: bool, idx: usize) -> Result<()>
End of
LineString
processingsource§fn multilinestring_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn multilinestring_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of
MultiLineString
processing Read moresource§fn polygon_begin(&mut self, tagged: bool, size: usize, idx: usize) -> Result<()>
fn polygon_begin(&mut self, tagged: bool, size: usize, idx: usize) -> Result<()>
Begin of
Polygon
processing Read moresource§fn multipolygon_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn multipolygon_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of
MultiPolygon
processing Read moresource§fn circularstring_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn circularstring_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of
CircularString
processing Read moresource§fn compoundcurve_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn compoundcurve_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of CompoundCurve processing Read more
source§fn curvepolygon_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn curvepolygon_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of CurvePolygon processing Read more
source§fn multicurve_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn multicurve_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of MultiCurve processing Read more
source§fn multisurface_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn multisurface_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of MultiSurface processing Read more
source§fn triangle_begin(
&mut self,
tagged: bool,
size: usize,
idx: usize
) -> Result<()>
fn triangle_begin( &mut self, tagged: bool, size: usize, idx: usize ) -> Result<()>
Begin of Triangle processing Read more
source§fn polyhedralsurface_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn polyhedralsurface_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of PolyhedralSurface processing Read more
source§fn polyhedralsurface_end(&mut self, idx: usize) -> Result<()>
fn polyhedralsurface_end(&mut self, idx: usize) -> Result<()>
End of PolyhedralSurface processing
source§fn tin_begin(&mut self, size: usize, idx: usize) -> Result<()>
fn tin_begin(&mut self, size: usize, idx: usize) -> Result<()>
Begin of Tin processing Read more
source§fn dimensions(&self) -> CoordDimensions
fn dimensions(&self) -> CoordDimensions
Additional dimensions requested when processing coordinates
source§fn srid(&mut self, srid: Option<i32>) -> Result<(), GeozeroError>
fn srid(&mut self, srid: Option<i32>) -> Result<(), GeozeroError>
SRID of geometries Read more
source§fn empty_point(&mut self, idx: usize) -> Result<(), GeozeroError>
fn empty_point(&mut self, idx: usize) -> Result<(), GeozeroError>
Process empty coordinates, like WKT’s
POINT EMPTY
Read moresource§fn geometrycollection_begin(
&mut self,
size: usize,
idx: usize
) -> Result<(), GeozeroError>
fn geometrycollection_begin( &mut self, size: usize, idx: usize ) -> Result<(), GeozeroError>
Begin of
GeometryCollection
processing Read moresource§fn geometrycollection_end(&mut self, idx: usize) -> Result<(), GeozeroError>
fn geometrycollection_end(&mut self, idx: usize) -> Result<(), GeozeroError>
End of
GeometryCollection
processingAuto Trait Implementations§
impl<'a> RefUnwindSafe for FgbWriter<'a>
impl<'a> Send for FgbWriter<'a>
impl<'a> Sync for FgbWriter<'a>
impl<'a> Unpin for FgbWriter<'a>
impl<'a> UnwindSafe for FgbWriter<'a>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more