OpenLayers.Geometry.Point - OpenLayers

# OpenLayers.Geometry.Point

Point geometry class.

#### Inherits from

- OpenLayers.Geometry

Summary

OpenLayers.Geometry.Point | Point geometry class.
Properties |
x | {float}
y | {float}
Constructor |
OpenLayers.Geometry.Point | Construct a point geometry.
Functions |
clone | {OpenLayers.Geometry.Point} An exact clone of this OpenLayers.Geometry.Point
distanceTo | Calculate the closest distance between two geometries (on the x-y plane).
equals | Determine whether another geometry is equivalent to this one.
move | Moves a geometry by the given displacement along positive x and y axes.
rotate | Rotate a point around another.
getCentroid | {OpenLayers.Geometry.Point} The centroid of the collection
resize | Resize a point relative to some origin.
intersects | Determine if the input geometry intersects this one.
transform | Translate the x,y properties of the point from source to dest.
getVertices | Return a list of all points in this geometry.

### Properties

### x

{float}

### y

{float}

### Constructor

### OpenLayers.Geometry.Point

Construct a point geometry.

#### Parameters

x | {float}
y | {float}

### Functions

### clone

> clone: function( | obj | )

#### Returns

{OpenLayers.Geometry.Point} An exact clone of this OpenLayers.Geometry.Point

### distanceTo

> distanceTo: function( | geometry,
> | options | )

Calculate the closest distance between two geometries (on the x-y plane).

#### Parameters

geometry | {OpenLayers.Geometry} The target geometry.
options | {Object} Optional properties for configuring the distance calculation.

#### Valid options

details | {Boolean} Return details from the distance calculation. Default is false.
edge | {Boolean} Calculate the distance from this geometry to the nearest edge of the target geometry. Default is true. If true, calling distanceTo from a geometry that is wholly contained within the target will result in a non-zero distance. If false, whenever geometries intersect, calling distanceTo will return 0. If false, details cannot be returned.

#### Returns

{Number | Object} The distance between this geometry and the target. If details is true, the return will be an object with distance, x0, y0, x1, and x2 properties. The x0 and y0 properties represent the coordinates of the closest point on this geometry. The x1 and y1 properties represent the coordinates of the closest point on the target geometry.

### equals

> equals: function( | geom | )

Determine whether another geometry is equivalent to this one. Geometries are considered equivalent if all components have the same coordinates.

#### Parameters

geom | {OpenLayers.Geometry.Point} The geometry to test.

#### Returns

{Boolean} The supplied geometry is equivalent to this geometry.

### move

> move: function( | x,
> | y | )

Moves a geometry by the given displacement along positive x and y axes. This modifies the position of the geometry and clears the cached bounds.

#### Parameters

x | {Float} Distance to move geometry in positive x direction.
y | {Float} Distance to move geometry in positive y direction.

### rotate

> rotate: function( | angle,
> | origin | )

Rotate a point around another.

#### Parameters

angle | {Float} Rotation angle in degrees (measured counterclockwise from the positive x-axis)
origin | {OpenLayers.Geometry.Point} Center point for the rotation

### getCentroid

> getCentroid: function()

#### Returns

{OpenLayers.Geometry.Point} The centroid of the collection

### resize

> resize: function( | scale,
> | origin,
> | ratio | )

Resize a point relative to some origin. For points, this has the effect of scaling a vector (from the origin to the point). This method is more useful on geometry collection subclasses.

#### Parameters

scale | {Float} Ratio of the new distance from the origin to the old distance from the origin. A scale of 2 doubles the distance between the point and origin.
origin | {OpenLayers.Geometry.Point} Point of origin for resizing
ratio | {Float} Optional x:y ratio for resizing. Default ratio is 1.

#### Returns

{<OpenLayers.Geometry>} | The current geometry.

### intersects

> intersects: function( | geometry | )

Determine if the input geometry intersects this one.

#### Parameters

geometry | {OpenLayers.Geometry} Any type of geometry.

#### Returns

{Boolean} The input geometry intersects this one.

### transform

> transform: function( | source,
> | dest | )

Translate the x,y properties of the point from source to dest.

#### Parameters

source | {OpenLayers.Projection}
dest | {OpenLayers.Projection}

#### Returns

{OpenLayers.Geometry}

### getVertices

> getVertices: function( | nodes | )

Return a list of all points in this geometry.

#### Parameters

nodes | {Boolean} For lines, only return vertices that are endpoints. If false, for lines, only vertices that are not endpoints will be returned. If not provided, all vertices will be returned.

#### Returns

{Array} A list of all vertices in the geometry.

> clone: function( | obj | )

{OpenLayers.Geometry.Point} An exact clone of this OpenLayers.Geometry.Point
Construct a point geometry.

> distanceTo: function( | geometry,
> | options | )

Calculate the closest distance between two geometries (on the x-y plane).

> equals: function( | geom | )

Determine whether another geometry is equivalent to this one.

> move: function( | x,
> | y | )

Moves a geometry by the given displacement along positive x and y axes.

> rotate: function( | angle,
> | origin | )

Rotate a point around another.

> getCentroid: function()

{OpenLayers.Geometry.Point} The centroid of the collection

> resize: function( | scale,
> | origin,
> | ratio | )

Resize a point relative to some origin.

> intersects: function( | geometry | )

Determine if the input geometry intersects this one.

> transform: function( | source,
> | dest | )

Translate the x,y properties of the point from source to dest.

> getVertices: function( | nodes | )

Return a list of all points in this geometry.
A Geometry is a description of a geographic object.
Methods for coordinate transforms between coordinate systems.
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