Class: GeoBounds

GeoBounds 地理范围.

Table of contents

Constructors

• constructor

Properties

• max
• min

Methods

• center
• clone
• closestPoint
• contains
• height
• intersect
• isContains
• isIntersect
• leftBottom
• leftTop
• randomGeoJsonLineCollection
• randomGeoJsonPointCollection
• randomGeoJsonPolygonCollection
• randomPoint
• randomPoints
• rightBottom
• rightTop
• scale
• scaleXY
• set
• square
• toArray
• toPointArray
• toString
• translate
• union
• update
• updateByBounds
• width
• fromArray
• fromCenterWH
• fromDataExtent
• fromString

Constructors

constructor

+ new GeoBounds(min?: GeoPoint, max?: GeoPoint): GeoBounds

Parameters

Returns: GeoBounds

Properties

max

• max: GeoPoint

---

min

• min: GeoPoint

Methods

center

▸ center(): GeoPoint

得到中心点

Returns: GeoPoint

---

clone

▸ clone(): GeoBounds

克隆

Returns: GeoBounds

---

closestPoint

▸ closestPoint(testPoint: GeoPoint, includeInterior?: boolean): GeoPoint

查找边界框上最近的点并返回该点.

Parameters

Returns: GeoPoint

---

contains

▸ contains(point: GeoPoint): boolean

查看点是否在包围盒中

Parameters

Returns: boolean

---

height

▸ height(): number

获取高度

Returns: number

---

intersect

▸ intersect(b: GeoBounds): null | GeoBounds

两包围盒求交集

Parameters

Returns: null | GeoBounds

---

isContains

▸ isContains(bound: GeoBounds): boolean

求一个包围盒是否包含另一个包围盒

Parameters

Returns: boolean

---

isIntersect

▸ isIntersect(bound: GeoBounds): boolean

判断与另一个包围盒是否相交

Parameters

Returns: boolean

---

leftBottom

▸ leftBottom(): GeoPoint

得到左下角

Returns: GeoPoint

---

leftTop

▸ leftTop(): GeoPoint

得到左上角

Returns: GeoPoint

---

randomGeoJsonLineCollection

▸ randomGeoJsonLineCollection(maxLineCount: number, maxPointCount: number, xRatio?: number, yRatio?: number, propertiesCb?: (index: number) => Object, minLineCount?: number, minPointCount?: number): GeoJsonGeomertry

生成一个随机geojson线集合

Parameters

Returns: GeoJsonGeomertry

---

randomGeoJsonPointCollection

▸ randomGeoJsonPointCollection(count: number, xRatio?: number, yRatio?: number, propertiesCb?: (index: number) => Object): GeoJsonGeomertry

生成一个随机geojson点集合

Parameters

Returns: GeoJsonGeomertry

---

randomGeoJsonPolygonCollection

▸ randomGeoJsonPolygonCollection(maxPolygonCount: number, maxPointCount: number, xRatio?: number, yRatio?: number, propertiesCb?: (index: number) => Object, minPolygonCount?: number, minPointCount?: number): GeoJsonGeomertry

生成一个随机geojson多边形集合

Parameters

Returns: GeoJsonGeomertry

---

randomPoint

▸ randomPoint(xRatio?: number, yRatio?: number): GeoPoint

生成一个随机点

Parameters

Returns: GeoPoint

---

randomPoints

▸ randomPoints(minPointCount: number, maxPointCount: number, xRatio?: number, yRatio?: number): GeoPoint[]

生成一个随机点序列

Parameters

Returns: GeoPoint[]

---

rightBottom

▸ rightBottom(): GeoPoint

得到右下角

Returns: GeoPoint

---

rightTop

▸ rightTop(): GeoPoint

得到右上角

Returns: GeoPoint

---

scale

▸ scale(ratio: number, origin?: null | GeoPoint): GeoBounds

按照比例扩大/缩小出一个新的 GeoBounds。

Parameters

Returns: GeoBounds

---

scaleXY

▸ scaleXY(ratioX: number, ratioY: number, origin?: null | GeoPoint): GeoBounds

按照XY比例扩大/缩小出一个新的 GeoBounds。

Parameters

Returns: GeoBounds

---

set

▸ set(min: GeoPoint, max: GeoPoint): void

设置包围盒范围

Parameters

Returns: void

---

square

▸ square(isLatlng?: boolean, isMinValue?: boolean): GeoBounds

变成正方形，使宽高相等

return{geobounds}

Parameters

Returns: GeoBounds

---

toArray

▸ toArray(): number[]

返回数组

Returns: number[]

The coordinates represented as a array of the format [minx, miny, maxx, maxy]'.

---

toPointArray

▸ toPointArray(): [number, number][]

返回点数组，包括四个顶点

Returns: [number, number][]

The coordinates represented as a array of the format [[minx,maxy], [maxx,maxy], [maxx,miny], [minx,miny]]'.

---

toString

▸ toString(fixed?: number): string

返回字符串.

Parameters

Returns: string

The coordinates represented as a string of the format minx, miny, maxx, maxy'.

---

translate

▸ translate(dx: number, dy: number): void

位移包围盒

Parameters

Returns: void

---

union

▸ union(bound: GeoBounds): GeoBounds

求多个包围盒的并集

Parameters

Returns: GeoBounds

---

update

▸ update(vertices: GeoPoint[]): void

更新包围盒

Parameters

Returns: void

---

updateByBounds

▸ updateByBounds(bounds: GeoBounds | GeoBounds[]): void

根据子包围盒更新包围盒

Parameters

Returns: void

---

width

▸ width(): number

获取宽度

Returns: number

---

fromArray

▸ Static fromArray(input: [number, number, number, number]): GeoBounds

根据数组创建 GeoBounds.

Example:

const b = GeoBounds.fromArray([left, bottom, right, top]);

Parameters

Returns: GeoBounds

---

fromCenterWH

▸ Static fromCenterWH(center: GeoPointLike, width: number, height?: number): GeoBounds

根据中心点和长，宽生成bounds

Parameters

Returns: GeoBounds

---

fromDataExtent

▸ Static fromDataExtent(input: GeoPoint | Feature<Geometry | GeometryCollection, Properties> | FeatureCollection<Geometry | GeometryCollection, Properties> | Geometry | GeometryCollection | [number, number] | [number, number, number] | { x: number ; y: number ; z?: number } | { lat: number ; lng: number } | { lat: number ; lon: number } | GeoPointLike[]): GeoBounds

根据数据范围来生成bounds

Parameters

Returns: GeoBounds

---

fromString

▸ Static fromString(input: string): GeoBounds

根据数组创建 GeoBounds.

Example:

const b = GeoBounds.fromString("[1,2,3,4]");

Parameters

Returns: GeoBounds

vjmap / Exports / GeoPoint