geopattern

Create beautiful generative image patterns from a string in golang.

Go port of Jason Long's awesome GeoPattern library.

Read geopattern's development story geo_pattern: going on the Go path

Generate beautiful tiling SVG patterns from a string. The string is converted into a SHA and a color and pattern are determined based on the values in the hash. The color is determined by shifting the hue from a default (or passed in) base color. One of 16 patterns is used (or you can specify one) and the sizing of the pattern elements is also determined by the hash values.

You can use the generated pattern as the background-image for a container. Using the base64 representation of the pattern still results in SVG rendering, so it looks great on retina displays.

See the GitHub Guides site as an example of this library in action. GitHub Guides use Original Ruby implementation.

Installation

go get github.com/pravj/geopattern

Usage

Example directory contains sample go programs that explains use of geopattern

API

Arguments for functions returning pattern's string

phrase : custom pattern phrase

args := map[string]string{"phrase": "My Custom Phrase"}

generator : custom pattern type

args := map[string]string{"generator": "plaid"}

color : custom background color

args := map[string]string{"color": "#3b5998"}

baseColor : custom base color that decides background color

args := map[string]string{"baseColor": "#ffcc00"}

Functions provided by package for pattern's string representation

Get the SVG string :

Generate(args)

Get the Base64 encoded string :

Base64String(args)

Get uri image string :

URIimage(args)

Available Pattern

chevrons

concentric-circles

diamonds

hexagons

mosaic-squares

nested-squares

octagons

overlapping-circles

overlapping-rings

plaid

plus-signs

sine-waves

squares

tessellation

triangles

xes

Dependencies

go-colorful : for color space conversion

Made with Muzi and Appy by Pravendra Singh