Doodle: Compositional Vector Graphics
Copyright Noel Welsh.
Doodle is a Scala library for compositional vector graphics.
Distributed under the Apache 2.0 license.
The current release is 0.10.1 and is on the
To use doodle add the following to your
// Doodle is currently published for Scala 2.13 and Scala 3 libraryDependencies += "org.creativescala" %% "doodle" % "0.10.1"
Alternatively you can
git clone or download Doodle and use it directly from the SBT console. See the instructions below.
Documentation is still a work-in-progress.
Creative Scala provides another source of documentation for Doodle. Creative Scala is a free introductory Scala ebook.
Below we have a few tips to get you started.
Getting Started from SBT
If you downloaded Doodle, rather than adding it to an existing Scala project, you can play around with it as follows.
bash$ sbt > # This is the SBT prompt. Press Ctrl+D to quit to the OS.
Start the console:
> rootJVM/console scala> # This is the Scala prompt. Press Ctrl+D to quit to SBT.
Use Scala commands to draw a shape in a native window:
A window should appear containing a red circle.
You can also save your masterpieces to a file.
Doodle currently supports writing to PNG, GIF, and JPG formats. Just alter the type parameter of
Attention IntelliJ Users
The Scala Plugin of IntelliJ still has an open bug which cannot resolve implicits correctly. The above example might give you an Error warning in Line XX. You can ignore this warning, or fix it using
circle.draw[Algebra, Drawing, Frame, Canvas](). Please use any text editor and Metals to get a better experience using Doodle.
Doodle was written by Noel Welsh with contributions from the contributors listed by Github.
These are notes for developers.
To generate the documentation run the
documentation task in SBT without changing to any project. If you do the task just seems to disappear. I have no idea why. The output will be in
docs/target/docs. Copy this to the website and upload.
If you run out of metaspace you can punch SBT in the face. Alternatively run just the documentation task (i.e.
sbt documentation) and it seems to be happier.
To publish a release:
- update the version number on
- update the version number in
masterwith the release version
- push tags to