## bellows **Example** ```js const bellows = require('bellows') ``` ### bellows~bellows([options]) Generate bellows pattern for cutting and folding. **Kind**: inner method of [bellows](#module_bellows) | Param | Type | Description | | --- | --- | --- | | [options] | Object | Bellows configuration options | | [options.dpi] | Integer | DPI of the image | | [options.pageW] | Integer | Page width in pixels | | [options.pageH] | Integer | Page height in pixels | | [options.frontIW] | Integer | Front inner width of bellows in pixels | | [options.frontOW] | Integer | Front outer width of bellows in pixels | | [options.frontIH] | Integer | Front inner height of bellows in pixels | | [options.frontOH] | Integer | Front outer height of bellows in pixels | | [options.backIW] | Integer | Back inner width of bellows in pixels | | [options.backOW] | Integer | Back outer width of bellows in pixels | | [options.backIH] | Integer | Back inner height of bellows in pixels | | [options.backOH] | Integer | Back outer height of bellows in pixels | | [options.maxLength] | Integer | Maximum length of bellows in pixels | | [options.align] | Integer | Vertical alignment adjustment in pixels | | [options.parts] | Integer | Number of parts to split pattern into: 1, 2, or 4 returns {String} Base64 encoded png data | **Example** Generate the default square bellows in 2 parts and print the string to the console. ``` const b = bellows({ parts : 2 }) console.log(b) ```