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
Constructor
var pointcloud = require('gl-pointcloud2d')(plot, options)
Creates a new 2D point cloud.
plot
is a reference to agl-plot2d
objectoptions
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 2*n length array of the unrolled xy coordinates of the points (required) - buffering is significantly faster if it's of type Float32ArrayidToIndex
is an optional array of length n whereidToIndex[i] = i
- buffering is significantly faster if it's supplied and of type Int32Arraycolor
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 (default0
)borderColor
is the color of the border of each point (default[0,0,0,1]
)blend
determines ifgl
blending is enabled for a translucency effect on overlaps; enabling it lowers draw speed somewhat (defaultfalse
)
Returns A new point cloud plot object, which is also registered to plot
Methods
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
Development supported by plot.ly