gl-pointcloud2d

gl-pointcloud2d
============
WebGL 2D point cloud for lots of points

Example

... to be created

Install

Using npm, you can install this module as follows:

``
npm i gl-pointcloud2d
`

API

$3

#### var pointcloud = require('gl-pointcloud2d')(plot, options)
Creates a new 2D point cloud.

* plot is a reference to a gl-plot2d object
* options is a JSON object containing the parameters which are passed to the object when it is updated.

options has the following properties:

data is a packed 2n length array of the unrolled xy coordinates of the points (required) - buffering is significantly faster if it's of type Float32Array
* idToIndex is an optional array of length n where idToIndex[i] = i - buffering is significantly faster if it's supplied and of type Int32Array
* color is the color of a marker as a length 4 RGBA array (default [1,0,0,1])
* borderSize is the ratio of the border around each point (default 0)
* borderColor is the color of the border of each point (default [0,0,0,1])
* blend determines if gl blending is enabled for a translucency effect on overlaps; enabling it lowers draw speed somewhat (default false)

Returns A new point cloud plot object, which is also registered to plot

$3

#### pointcloud.update(options)
Updates the point cloud plot.

* options is an object with the same properties as in the point cloud plot constructor

#### pointcloud.dispose()`
Destroys the point cloud plot and all associated resources.

License

(c) 2015 Mikola Lysenko. MIT License

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