StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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51 lines
1.4 KiB
51 lines
1.4 KiB
# webgl-context
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[](http://github.com/badges/stability-badges)
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Grabs a WebGLRenderingContext, returning null if it doesn't exist. Similar to [2d-context](https://nodei.co/npm/2d-context/).
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```js
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//get a webgl context, will be null if not found
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var gl = require('webgl-context')()
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if (gl) {
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document.body.appendChild(gl.canvas)
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//do something...
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}
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```
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Or, with options:
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```js
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//or with optional settings...
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var gl = require('webgl-context')({
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canvas: canvas, //the canvas DOM element to use
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width: 400, //resizes the canvas..
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height: 200,
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antialias: true //can specify custom attributes here
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})
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```
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## Usage
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[](https://nodei.co/npm/webgl-context/)
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#### `ctx = require('webgl-context')([opt])`
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Gets a new canvas context with optional parameters:
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- `canvas` a canvas element to use, otherwise creates a new element
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- `width` a width to set, otherwise no change
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- `height` a height to set, otherwise no change
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- other attributes are passed to the getContext call, like `alpha` and `antialias`
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You can then get a reference of the canvas element with `ctx.canvas`.
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## See Also
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- [get-canvas-context](https://www.npmjs.com/package/get-canvas-context)
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- [2d-context](https://www.npmjs.com/package/2d-context)
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## License
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MIT, see [LICENSE.md](http://github.com/mattdesl/webgl-context/blob/master/LICENSE.md) for details.
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