wegiangb / lore

WebGL engine for (big) data visualization.

If you use this code or application, please cite the original paper published by Bioinformatics: 10.1093/bioinformatics/btx760

Lore

Current Version: 1.0.17 (Godzilla)

Teasers

Browsing the SureChEMBL database (containing > 12 million datapoints): Faerun.

Example

A basic fiddle See the examples folder for more details.

Installation

You can either download or clone this repository and use the JavaScript file in the dist folder, or you can use yarn to install the package lore-engine:

yarn add lore-engine

Building Lore

If you decide not to use the ready-to-go scripts in dist, you can (edit and) build the project by running:

npm install
gulp

Getting Started

A simple example can be found in the example folder. The example data file was downloaded from the website of the Berkeley Drosophila Transcription Network Project. It is a very small data set (N=6000) chosen because of the small file size (larger files can not be hosted on github).

Options

Renderer

Option	Identifier	Data Type	Default Value
Antialiasing	antialiasing	boolean	true
Verbose Mode	verbose	boolean	false
The HTML element where FPS info is displayed	fpsElement	HTMLElement	document.getElementById('fps')
The canvas background color	clearColor	Lore.Color	Lore.Color.fromHex('#000000')
The distance of the camera to the center	radius	number	500
Clear Depth	clearDepth	number	1.0
Center (LookAt)	center	Lore.Vector3f	new Lore.Vector3f()
Enable depth test	enableDepthTest	boolean	true
Enable alpha blending	alphaBlending	boolean	false

CoordinatesHelper

The options for the coordinate helper are self-explanatory:

{
    position: new Lore.Vector3f(),
    axis: {
        x: {
            length: 50.0,
            color: Lore.Color.fromHex('#222222')
        },
        y: {
            length: 50.0,
            color: Lore.Color.fromHex('#222222')
        },
        z: {
            length: 50.0,
            color: Lore.Color.fromHex('#222222')
        }
    },
    ticks: {
        enabled: true,
        x: {
            count: 10,
            length: 5.0,
            offset: new Lore.Vector3f(),
            color: Lore.Color.fromHex('#1f1f1f')
        },
        y: {
            count: 10,
            length: 5.0,
            offset: new Lore.Vector3f(),
            color: Lore.Color.fromHex('#1f1f1f')
        },
        z: {
            count: 10,
            length: 5.0,
            offset: new Lore.Vector3f(),
            color: Lore.Color.fromHex('#1f1f1f')
        }
    },
    box: {
        enabled: true,
        x: {
            color: Lore.Color.fromHex('#222222')
        },
        y: {
            color: Lore.Color.fromHex('#222222')
        },
        z: {
            color: Lore.Color.fromHex('#222222')
        }
    },
}

OctreeHelper

Option	Identifier	Data Type	Default Value
Visualize the octree (for debug purposes)	visualize	boolean or string	false, 'centers', 'cubes'
Enable multiselect	multiSelect	boolean	true

PointHelper

Option	Identifier	Data Type	Default Value
Create an octree when setting positions	octree	boolean	true
The maximum number of vertices in a octree node	octreeThreshold	number	500
The maximum depth of the octree	octreeMaxDepth	number	8
Point size scaling	pointScale	number	1.0
The maximum point size	maxPointSize	number	100.0

Documentation

The documentation can be found in the docs folder. A markdown version is available here.