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grunt-jpg-sprites

v0.3.6

Published

Grunt task for converting a set of images (JPG, PNG and more) into a spritesheet using ImageMagick.

Downloads

20

Readme

grunt-jpg-sprites

Grunt task for converting a set of images into a sprite sheets. Supports any type of images which is supported by ImageMagick (JPG, PNG and more).

Getting Started

This plugin requires Grunt 0.4.5

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-jpg-sprites --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-jpg-sprites');

The "jpg_sprites" task

Overview

In your project's Gruntfile, add a section named jpg_sprites to the data object passed into grunt.initConfig().

grunt.initConfig({
  jpg_sprites: {
    options: {
      orientation : 'horizontal',
      sizes : ['100x100', '50x50', '40x40']
    },
    files: {
      'images/output2.jpg' : ['images/*.jpg'],
      'images/output2.png' : ['images/*.png']
    },
    compression : {
	  type : "JPEG",
      quality : 100
    }
  },
});

Options

options.orientation

Type: String Default value: 'horizontal' Possible values: 'horizontal', 'vertical'

Determines how images will be arranged in image sprite.

[options.sizes]

Type: Array Default value: []

[options.compression]

Type: Object Default value: {type : "None", quality : 100}

Determines whether image should be compressed or not. Quality is from range 0 to 100. Possible compression types are: 'B44', 'B44A', 'BZip', 'DXT1', 'DXT3', 'DXT5', 'Fax', 'Group4', 'JBIG1', 'JBIG2', 'JPEG', 'JPEG2000', 'Lossless', 'LosslessJPEG', 'LZMA', 'LZW', 'None', 'Piz', 'Pxr24', 'RLE', 'Zip', 'RunlengthEncoded', 'ZipS'

Usage Examples

When you just want to create a sprite from random-size images:

grunt.initConfig({
  jpg_sprites: {
    options: {
      orientation : 'horizontal'
    },
    files: {
      'images/output2.jpg' : ['images/*.jpg']
    }
  },
});

When you have set of images of the same size and you want to create multiple resized sprites:

grunt.initConfig({
  jpg_sprites: {
    options: {
      orientation : 'horizontal',
      sizes : ['100x100', '50x50', '40x40']
    },
    files: {
      'images/output2.jpg' : ['images/*.jpg']
    }
  },
});

Example with enabled compression

grunt.initConfig({
  jpg_sprites: {
    options: {
      orientation : 'horizontal',
      sizes : ['100x100', '50x50', '40x40'],
      compression : {
        type : "JPEG",
      	quality : 100
      }
    },
    files: {
      'images/output2.jpg' : ['images/*.jpg']
    }
  },
});

Dependencies

  • ImageMagick 6.8.9-1 (tested)

Release History

  • Version 0.3.x - Support for compression
  • Version 0.2.x - Sprite creation and resizing