Class GeoPoint

constructor

• new GeoPoint(x, y, z?): GeoPoint

• GeoPoint 构造函数

  Parameters

  • x: number

    x坐标.

  • y: number

    y坐标.

  • Optional z: number

    z坐标(可选）.

  Returns GeoPoint

x

y

Optional z

add

• add(p): GeoPoint

• 两个点相加.

  Parameters

  • p: GeoPoint

    要相加的点.

  Returns GeoPoint

angle

• angle(): number

• 角度.

  Returns number

angleTo

• angleTo(b): number

• 距一个点的角度

  Parameters

  • b: GeoPoint

  Returns number

angleWith

• angleWith(b): number

• 距一个点的interiorAngle

  Parameters

  • b: GeoPoint

  Returns number

angleWithSep

• angleWithSep(x, y): number

• 距一个点的interiorAngle

  Parameters

  • x: number

  • y: number

  Returns number

clone

• clone(): GeoPoint

• 克隆一个坐标

  Returns GeoPoint

distSqr

• distSqr(p): number

• 两点之间距离平方.

  Parameters

  • p: GeoPoint

  Returns number

distanceTo

• distanceTo(p): number

• 两点之间距离.

  Parameters

  • p: GeoPoint

  Returns number

div

• div(k): GeoPoint

• 除一个系数.

  Parameters

  • k: number

    系数.

  Returns GeoPoint

divByPoint

• divByPoint(p): GeoPoint

• 两个点相除.

  Parameters

  • p: GeoPoint

    要相除的点.

  Returns GeoPoint

dot

• dot(p): number

• Parameters

  • p: GeoPoint

  Returns number

equals

• equals(other, dotErr?): boolean

• 判断是否相等

  Parameters

  • other: GeoPoint

    另外一个点

  • dotErr: number = 8

    允许误差的小数点后几位，默认8位

  Returns boolean

equalsZ

• equalsZ(other): boolean

• 是否相等（判断z).

  Parameters

  • other: GeoPoint

  Returns boolean

lengthSq

• lengthSq(): number

• Returns number

lerp

• lerp(v, alpha): GeoPoint

• Parameters

  • v: GeoPoint

  • alpha: number

  Returns GeoPoint

mag

• mag(): number

• 长度.

  Returns number

matMult

• matMult(m): GeoPoint

• 乘一个矩阵.

  Parameters

  • m: number[]

    矩阵值.

  Returns GeoPoint

mult

• mult(k): GeoPoint

• 乘一个系数.

  Parameters

  • k: number

    系数.

  Returns GeoPoint

multByPoint

• multByPoint(p): GeoPoint

• 两个点相乘.

  Parameters

  • p: GeoPoint

    要相乘的点.

  Returns GeoPoint

perp

• perp(): GeoPoint

• 投影 [x,y] = [-y, x].

  Returns GeoPoint

roateAround

• roateAround(angle, p): GeoPoint

• 绕一个点旋转.

  Parameters

  • angle: number

    弧度.

  • p: GeoPoint

    围绕的点.

  Returns GeoPoint

rotate

• rotate(angle): GeoPoint

• 旋转.

  Parameters

  • angle: number

    弧度.

  Returns GeoPoint

round

• round(fixed?): GeoPoint

• 后小数点几位取整

  Parameters

  • fixed: number = 6

  Returns GeoPoint

roundInt

• roundInt(): GeoPoint

• 四舍五入取整.

  Returns GeoPoint

roundStr

• roundStr(fixed?): string

• Parameters

  • fixed: number = 6

  Returns string

sub

• sub(p): GeoPoint

• 两个点相减.

  Parameters

  • p: GeoPoint

    要相减的点.

  Returns GeoPoint

toArray

• toArray(): number[]

• 返回数组

  Returns number[]

  The coordinates represeted as an array of x and y.

  var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
  ll.toArray(); // = [-73.9749, 40.7736]
  Copy

toString

• toString(fixed?): string

• 返回字符串.

  Parameters

  • fixed: number = 6

  Returns string

  The coordinates represented as a string of the format 'x, y, z?'.

  var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
  ll.toString(); // = "GeoPoint(-73.9749, 40.7736)"
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transform

• transform(basePt, destPt, scale?, angle?): GeoPoint

• 对一个点围绕一个基点进行缩放旋转平移操作.

  Parameters

  • basePt: GeoPoint

    围绕的基点坐标

  • destPt: GeoPoint

    要平移至的目的地坐标

  • Optional scale: number

    缩放比例，默认1.0

  • Optional angle: number

    旋转角度，逆时针，默认0

  Returns GeoPoint

unit

• unit(): GeoPoint

• 单位长度.

  Returns GeoPoint

Static convert

• convert(input): GeoPoint

• 根据不同的类型创建地理坐标 GeoPoint .

  Example:

  const p1 = GeoPoint.convert(new GeoPoint(x, y, z));
  const p2 = GeoPoint.convert([x, y]);
  const p3 = GeoPoint.convert([x, y, z]);
  const p4 = GeoPoint.convert(lng: -73.9749, lat: 40.7736});
  const p5 = GeoPoint.convert(lon: -73.9749, lat: 40.7736});
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  Parameters

  • input: GeoPointLike

    Either [[GeoPointLike]], GeoPointLike or GeoPointLike object literal.

  Returns GeoPoint

Static fromString

• fromString(input): GeoPoint

• 根据字符串创建 GeoPoint.

  Example:

  const b = GeoPoint.fromString("1,2");
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  Parameters

  • input: string

  Returns GeoPoint