This is a fork of Mr. Doob's Harmony drawing tool, simplified and modified to be a sandbox framework for students of digital drawing.

==================================================================== How to create new brushes?

There are in general 3 steps to create a new brush:

1. create a javascript file defining the brush. The brush file is recommended to store inside the "js/brushes/" directory.
   • the brush name should be used consistently within the framework: the js file name, the main function name (line 1 in the brush js), the brush name in BRUSHES (defined in main.js)..etc
   • the brush prototype has to contain these three stroke functions: strokeStart(x, y) stroke(x, y) strokeEnd()
2. add the following script element inside in index.html. Note that {BRUSH_NAME} should be the name of your new brush defined in step 1. <script type="text/javascript" src="js/brushes/{BRUSH_NAME}.js"></script>
3. add the name of your new brush into the variable BRUSHES in main.js

==================================================================== How to create new canvas papers?

There are in general 3 steps to create a new canvas paper:

1. create a javascript file defining the canvas paper. The paper file is recommended to store inside the "js/papers/" directory.
   • the paper name should be used consistently within the framework: the js file name, the main function name (line 1 in the paper js), the paper name in PAPERS (defined in main.js)..etc
   • the paper prototype has to contain this function: apply()
2. add the following script element inside in index.html. Note that {PAPER_NAME} should be the name of your new paper defined in step 1. <script type="text/javascript" src="js/papers/{PAPER_NAME}.js"></script>
3. add the name of your new paper into the variable PAPERS in main.js

Two predefined papers were included in the framework: color and sandy. Each paper demos a different type of paper. "color" is a simple background paper of a selected solid color. "sandy" is a stroke-effect paper that (1) creates a sandy texture and (2) applies the sandy effect on the strokes.

Now load index.html into a html5 ready browser (if you don't know which one to use, Google Chrome is recommended as it has a nice set of development features), you should be able to find the new paper in the drop-down list of the paper selector.

==================================================================== License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.