gl-streamtube3d
3D stream tube plot
Last updated 9 months ago by archmoj .
MIT · Repository · Bugs · Original npm · Tarball · package.json
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gl-streamtube3d

Visualization module for vector fields.

Example

var createScene    = require('gl-plot3d')
var createMesh     = require('gl-mesh3d')
var createStreamTube = require('gl-streamtube3d')
var wind           = require('dataset-wind')

var scene = createScene()

var bounds = [];

var streamTube = createStreamTube({
    startingPositions: positionsArray,
    maxLength: 1000,
    getVelocity: velocityFunction,
    colormap: 'portland'
}, bounds)

var mesh = createMesh(gl, streamTube)

scene.add(mesh)

Try out the example in your browser

Install

npm i gl-streamtube3d

Basic interface

Constructor

var streamTube = require('gl-streamtube3d')(params, bounds)

Creates a stream tube plot of a vector field.

  • params is an object that has the following properties:

    • startingPositions (Required) An array of starting positions for the vector field, encoded as arrays.
    • getVelocity(point) (Optional) A getter function to get the velocity at a given point.
    • getDivergence(point) (Optional) A getter function to get the divergence at a given point. Used for the width of the streamtube. Defaults to the divergence of the getVelocity function.
    • maxLength (Optional) The maximum number of segments to add to a streamtube. Default is 1000.
    • tubeSize (Optional) The scaling factor for the streamtubes. The default is 1, which avoids two max divergence tubes from touching at adjacent starting positions.
    • absoluteTubeSize (Optional) Absolute scaling factor for the streamtubes. A value of 1 scales divergence of 1 to 1 coordinate system unit. Overrides tubeSize.
    • colormap (Optional) The colormap to use.

Returns A streamtube plot object that can be passed to gl-mesh3d.

Credits

(c) 2013-2017 Mikola Lysenko, Ilmari Heikkinen. MIT License

Current Tags

  • 1.4.1                                ...           latest (9 months ago)

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