One of our class assignments was to write a simple 2d spline editor. The project requirements were as such:

-Use wxWindows
-Select between at least 2 spline types on the fly, and render them correctly
-Add, delete & move controlpoints
-Move handles, if spline type requires it
-Save to disk and load back in in ANY format, ascii, binary, XML (bonus for using XML)

In the end I managed to accomplish more than what was originally asked for. This was my first time using the wxWindows UI toolkit, as well as my first time using XML. I feel that given the 3 weeks of development time, I was able to build a solid tool which was easy to use (from a UI standpoint), to support all 4 types of splines we covered in class, to learn a new UI toolkit, and to learn how to use/integrate a new XML parser. One of the features which I was most proud of for this short project was my use of the Strategy Pattern, which I used to encapsulate each of the interpolation algorithms.

• Engine
  • Home grown
• Development Time
  • 3 Weeks
• Language
  • C++
• UI Toolkit
  • wxWindows
• XML Parser
  • nanoXML
• Supported Splines
  • Catmull Rom
  • Cubic Bezier patches
  • Bezier
  • Hermite
• Features/Limitations:
  • 14 point maximum Bezier splines.
  • Saving and Loading splines from a custom XML file format.
  • Left click to add/modify point mode.
  • Right click a point and select Delete to remove a point.
  • C1 Continuity mode for Cubic Bezier splines
  • Tangent Line Edit Mode for Hermite splines
  • Global default scale value of 0.5 for all Catmull Rom spline points.
  • Insertion Point mode for Catmull Rom splines and Hermite splines.
  • Clear points button to clear the points in the current spline.
  • Simple dropdown list for selecting interpolation type.