Scatterplot matrix for 2d plots
npm install regl-splomMatrix of scatter plots. A wrapper over regl-scatter2d for optimized intersected data rendering.
[x] minimal GPU memory footprint: N vs NN in direct regl-scatter2d passes case.
* [ ] optimized performance due to binary trees for 1d point clustering, opposed to default 2d quad clustering.
``js
let regl = require('regl')({extensions: 'oes_element_index_uint'})
let createMatrix = require('regl-splom')
let scatterMatrix = createMatrix(regl)
// pass data and views to display
scatterMatrix.update(
{ data: [[], [], ...], ranges, domains, viewport, size, color, border },
{ data: [[], [], ...], ranges, domains, viewport, size, color, border }
)
// draw views by ids
scatterMatrix.draw(0, 1, ...views)
`
Creates scatter matrix instance.
Define passes for draw method. Every trace can include the following options:
Option | Description
---|---
data | An array with arrays for the columns.range | Array with data ranges corresponding to data. Every range can be an array [min, max] or [minX, minY, maxX, maxY]. If undefined - detected automatically.domain | Array with domains for the data, ie. the area data dimension holds within the viewport. Each domain can be an array [min, max] for symmetric placement or [minX, minY, maxX, maxY] for precise position. Domain values are from 0..1 interval, defining what area of the viewport a dimension holds. By default domains cover viewport evnely.padding | Padding within domains (in px), or list of paddings per-domain. By default [0,0,0,0]. Can be a number, an array or any rectangle format.color, size, borderColor, borderSize, opacity | Points style.marker | Points marker.diagonal | Show or hide diagonal.upper | Show or hide upper half matrix.lower | Show or hide lower half matrix.viewport | Area that the plot holds within the canvas. Can take any rectangle format.
Draw all defined passes, or only selected ones provided by ids. Optionally define point indexes to render.
`js
// draw 1 and 3 passes
splom.draw(1, 3)
// draw 1, 2 and 3 points from the first pass and 3 point from the second pass
splom.draw([1, 2, 3], [3])
``
Dispose renderer and all the associated resources
* regl-scatter2d
* regl-line2d
* regl-error2d
© 2018 Dmitry Yv. MIT License
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