Struct GenericPolyline 

pub struct GenericPolyline<PointType> { /* private fields */ }

Generic struct to create Polyline; PolylineM, PolylineZ

Polylines can have multiple parts.

Polylines parts must have 2 at least 2 points

To create a polyline with only one part use new, to create a polyline with multiple parts use with_parts

geo-types

shapefile’s Polyline can be converted to geo_types’s MultiLineString<f64>

geo-types’s Line, LineString, MultiLineString can be converted to shapefile’s Polyline

let mut polylines = shapefile::read_shapes_as::<_, shapefile::Polyline>("tests/data/line.shp")?;
let geo_polyline: geo_types::MultiLineString<f64> = polylines.pop().unwrap().into();
let polyline = shapefile::Polyline::from(geo_polyline);

Implementations

impl<PointType: ShrinkablePoint + GrowablePoint + Copy> GenericPolyline<PointType>

Creating a Polyline

pub fn new(points: Vec<PointType>) -> Self

Examples

Polyline with single part

use shapefile::{Point, Polyline};
let points = vec![
    Point::new(1.0, 1.0),
    Point::new(2.0, 2.0),
];
let poly = Polyline::new(points);

panic

This will panic if the vec has less than 2 points

pub fn with_parts(parts: Vec<Vec<PointType>>) -> Self

Examples

Polyline with multiple parts

use shapefile::{Point, Polyline};
let first_part = vec![
    Point::new(1.0, 1.0),
    Point::new(2.0, 2.0),
];

let second_part = vec![
    Point::new(3.0, 1.0),
    Point::new(5.0, 6.0),
];

let third_part = vec![
    Point::new(17.0, 15.0),
    Point::new(18.0, 19.0),
    Point::new(20.0, 19.0),
];
let poly = Polyline::with_parts(vec![first_part, second_part, third_part]);

panic

This will panic if any of the parts are less than 2 points

impl<PointType> GenericPolyline<PointType>

pub fn bbox(&self) -> &GenericBBox<PointType>

Returns the bounding box associated to the polyline

pub fn parts(&self) -> &Vec<Vec<PointType>>

Returns a reference to all the parts

pub fn part(&self, index: usize) -> Option<&Vec<PointType>>

Returns a reference to a part

pub fn into_inner(self) -> Vec<Vec<PointType>>

Consumes the polyline and returns the parts

pub fn total_point_count(&self) -> usize

Returns the number of points contained in all the parts

Trait Implementations

impl<PointType: Clone> Clone for GenericPolyline<PointType>

fn clone(&self) -> GenericPolyline<PointType>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<PointType: Debug> Debug for GenericPolyline<PointType>

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

Formats the value using the given formatter.

impl From<GenericPolyline<Point>> for Shape

fn from(concrete: Polyline) -> Self

Converts to this type from the input type.

impl From<GenericPolyline<PointM>> for Shape

fn from(concrete: PolylineM) -> Self

Converts to this type from the input type.

impl<PointType: HasXY> From<GenericPolyline<PointType>> for GenericPolygon<PointType>

fn from(polyline: GenericPolyline<PointType>) -> Self

Converts to this type from the input type.

impl<PointType> From<GenericPolyline<PointType>> for MultiLineString<f64>

where PointType: Copy, Coordinate<f64>: From<PointType>,

Available on crate feature geo-types only.

fn from(polyline: GenericPolyline<PointType>) -> Self

Converts to this type from the input type.

impl From<GenericPolyline<PointZ>> for Shape

fn from(concrete: PolylineZ) -> Self

Converts to this type from the input type.

impl<PointType> From<Line> for GenericPolyline<PointType>

where PointType: From<Point<f64>> + ShrinkablePoint + GrowablePoint + Copy,

Available on crate feature geo-types only.

fn from(line: Line<f64>) -> Self

Converts to this type from the input type.

impl<PointType> From<LineString> for GenericPolyline<PointType>

where PointType: From<Coordinate<f64>> + ShrinkablePoint + GrowablePoint + Copy,

Available on crate feature geo-types only.

fn from(line: LineString<f64>) -> Self

Converts to this type from the input type.

impl<PointType> From<MultiLineString> for GenericPolyline<PointType>

where PointType: From<Coordinate<f64>> + ShrinkablePoint + GrowablePoint + Copy,

Available on crate feature geo-types only.

fn from(mls: MultiLineString<f64>) -> Self

Converts to this type from the input type.

impl<PointType: PartialEq> PartialEq for GenericPolyline<PointType>

fn eq(&self, other: &GenericPolyline<PointType>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<PointType> StructuralPartialEq for GenericPolyline<PointType>