Reform is an vector graphics application featuring direct manipulation programming.
It is based on Bret Victor's talk "Drawing Dynamic Visualizations".
Currently it is still under development and not yet released.
Take a look at this youtube playlist to see the application in action.
This java implementation is not developt anymore.
Currently a Swift implementation is developed
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Bret Victor:
http://worrydream.com/
Bret Victor's talk "Drawing Dynamic Visualisations":
http://vimeo.com/66085662
Bret's talk notes:
http://worrydream.com/DrawingDynamicVisualizationsTalkAddendum/
Youtube demo playlist: https://www.youtube.com/playlist?list=PLfGbKGqfmpEJofmpKra57N0FTgd33SnGG
Swift implementation: https://github.com/laszlokorte/reform-swift