MultiLineString.from constructor
A multi line string from an iterable of lineStrings
(each a chain as an
iterable of positions).
An optional bounds
can used set a minimum bounding box for a geometry.
Each line string or a chain of positions is represented by an
Iterable<Position>
instance. The coordinate type of all positions in
all chains should be the same.
Examples:
// a multi line string with two line strings both with three 2D positions
MultiLineString.from([
[
[10.0, 20.0].xy,
[12.5, 22.5].xy,
[15.0, 25.0].xy,
],
[
[12.5, 23.0].xy,
[11.5, 24.0].xy,
[12.5, 24.0].xy,
],
]);
// a multi line string with two line strings both with three 3D positions
MultiLineString.from([
[
[10.0, 20.0, 30.0].xyz,
[12.5, 22.5, 32.5].xyz,
[15.0, 25.0, 35.0].xyz,
],
[
[12.5, 23.0, 32.5].xyz,
[11.5, 24.0, 31.5].xyz,
[12.5, 24.0, 32.5].xyz,
],
]);
Implementation
factory MultiLineString.from(
Iterable<Iterable<Position>> lineStrings, {
Box? bounds,
}) =>
MultiLineString(
lineStrings.map(PositionSeries.from).toList(growable: false),
bounds: bounds,
);