gl-vis/gl-error3d

Draws error bars around points

gl-error3d

Draws error bars around data points

Example

var createScene = require('gl-plot3d')
var createScatter = require('gl-scatter3d')
var createErrorBars = require('gl-error3d')

var points = [ [0,0,0], [1,1,1], [-1, 2, -3] ]
var errors = [ 
  [[-0.5,-0.5,-0.5],[0.5,0.5,0.5]], 
  [[-0.1,-1,-2],[0,0,0]], 
  [[-0.1,-0.1,-0.1],[0.1,0.1,0.1]] 
]

var scene = createScene()

var scatter = createScatter({
  gl:           scene.gl,
  position:     points,
  size:         20,
  orthographic: true,
  lineColor:    [0,0,0],
  color:        [0.7,0.8,0.4],
  lineWidth:    1
})
scene.add(scatter)


var errorBars = createErrorBars({
  gl:       scene.gl,
  position: points,
  error:    errors,
  color:    [0.9, 0.3, 0.3]
})
scene.add(errorBars)

API

Constructor

var errorBars = require('gl-error3d')(options)

Creates a new error bar object.

• gl is a WebGL context
• position is the position of each point in the plot
• error is an array of error bounds represented as [lo,hi] for each point
• color a length 3 array of arrays giving the color of the error bars along each axis.
• lineWidth is the width of the error bar lines in pixels
• capSize is the size of the cap for error bars
• clipBounds is a box to which all error bars will be clipped

Returns A new error bar object

errorBars.update(options)

Updates the error bar object

errorBars.dispose()

Destroy the error bars and release all associated resources

Credits

(c) 2014-2015 Mikola Lysenko. MIT License