The main objective of the project is to use the touch sensitive device capability of the iPad to give a better user experience and functionalities for the artists. In this project, I have explored different interactions that can give a better experience for artist when compared to traditional computer-mouse interaction. In the traditional Computer-mouse interaction it is very difficult for the user to draw smooth curves, without having to use built-in functions for drawing curves. In this application the user can use the touch panel to do free drawing, the user can basically feel the device as a object for drawing like in real life. Drawing on the touch device eliminates a use of another hardware to interact with the Interface of the system. In this application the user can use multi-touch points to zoom and pan, the user can also choose colors from a color wheel, the changable pen and eraser size. The pen size is varied based on the touch of the user touch radius. The Important functionality of the project is, the application lets the user to obtain subtractive color blending. User can also add a image to the background from the photo library and add more colors to the image. User can also zoom and draw, which adds the advantage of being able to modify the minute details of the drawing. Different actions can be performed on the image drawn, like copy, save to gallery, email and different services are also built into the app to allow the users to share the image to online services like Facebook, Twitter and Tumblr.
Mullapudi, Srujitha, "Interface Design for Graphics Editor on Multi- Touch Point Systems" (2011). Master's Projects. 199.