POTRACE

Based on http://potrace.sourceforge.net and https://github.com/kilobtye/potrace.

Converts bitmap images to vector paths.

Usage

$3

Install the library.

``
jspm install POTRACE=github:casperlamboo/POTRACE
`

Include the library.

`javascript
import POTRACE from 'POTRACE';
`

$3

Install the library.

`
npm install potrace-js
`

Include the library.

`javascript
var POTRACE = require('potrace-js');
`

API

Options

`javascript
{
turnpolicy: enum('black' | 'white' | 'left' | 'right' | 'minority' | 'majority'),
turdsize: Float,
optcurve: Bool,
alphamax: Float,
opttolerance: Float
}
`
- turnpolicy: how to resolve ambiguities in path decomposition. (default: "minority")
- turdsize: suppress speckles of up to this size (default: 2)
- optcurve: turn on/off curve optimization (default: true)
- alphamax: corner threshold parameter (default: 1)
- opttolerance: curve optimization tolerance (default: 0.2)

POTRACE.traceUrl

Traces a given image from url.

`javascript
[...Path] = async POTRACE.traceUrl(url: String, [ options: Object ])
`
- url: path to the image
- options: trace options

POTRACE.traceImage

Traces a given image.

`javascript
[...Path] = POTRACE.traceImage(image: HTMLImageElement, [ options: Object ])
`
- image: image containing the image
- options: trace options

POTRACE.traceCanvas

Traces a given canvas.

`javascript
[...Path] = POTRACE.traceCanvas(canvas: HTMLCanvasElement, [ options: Object ])
`
- canvas: canvas containing the image
- options: trace options

POTRACE.bitmap

Traces a given bitmap.

`javascript
[...Path] = POTRACE.traceBitmap(bitmap: POTRACE.Bitmap, [ options: Object ])
`
- bitmap: bitmap containing image info (1 and 0 values)
- options: trace options


POTRACE.getSVG

Converts trace result to svg.

`javascript
svg: String = POTRACE.getSVG([...Path])
`

POTRACE.getPaths

Converts trace result to readable paths.

`javascript
svg: String = POTRACE.getPaths([...Path])
``