new GroundPolylineGeometry(options)

A description of a polyline on terrain or 3D Tiles. Only to be used with GroundPolylinePrimitive.

Name Type Description

options

Object

Options with the following properties:

Name	Type	Default	Description
`positions`	Array.<Cartesian3>		An array of `Cartesian3` defining the polyline's points. Heights above the ellipsoid will be ignored.
`width`	Number	1.0	可选 The screen space width in pixels.
`granularity`	Number	9999.0	可选 The distance interval in meters used for interpolating options.points. Defaults to 9999.0 meters. Zero indicates no interpolation.
`loop`	Boolean	false	可选 Whether during geometry creation a line segment will be added between the last and first line positions to make this Polyline a loop.
`arcType`	ArcType	ArcType.GEODESIC	可选 The type of line the polyline segments must follow. Valid options are `ArcType.GEODESIC` and `ArcType.RHUMB`.

See:

GroundPolylinePrimitive

Throws:

At least two positions are required.
Type DeveloperError

Example

var positions = SuperMap3D.Cartesian3.fromDegreesArray([
  -112.1340164450331, 36.05494287836128,
  -112.08821010582645, 36.097804071380715,
  -112.13296079730024, 36.168769146801104
]);

var geometry = new SuperMap3D.GroundPolylineGeometry({
  positions : positions
});

Members

arcTypeArcType

The type of path the polyline must follow. Valid options are ArcType.GEODESIC and ArcType.RHUMB.

Default Value:

granularityBoolean

The distance interval used for interpolating options.points. Zero indicates no interpolation. Default of 9999.0 allows centimeter accuracy with 32 bit floating point.

Default Value:

loopBoolean

Whether during geometry creation a line segment will be added between the last and first line positions to make this Polyline a loop. If the geometry has two positions this parameter will be ignored.

Default Value:

widthNumber

The screen space width in pixels.

Methods

static pack(value, array, startingIndex){Array.<Number>}

Stores the provided instance into the provided array.

Name	Type	Default	Description
`value`	PolygonGeometry		The value to pack.
`array`	Array.<Number>		The array to pack into.
`startingIndex`	Number	0	可选 The index into the array at which to start packing the elements.

Returns:

Type	Description
Array.<Number>	The array that was packed into

static unpack(array, startingIndex, result)

Retrieves an instance from a packed array.

Name	Type	Default	Description
`array`	Array.<Number>		The packed array.
`startingIndex`	Number	0	可选 The starting index of the element to be unpacked.
`result`	PolygonGeometry		可选 The object into which to store the result.

Class: GroundPolylineGeometry