Add free() function. Update included headers.
Free the polygon object when init done.
Add OIMTransform class to manage the model view transformations. Currently, -(GLKVector3)convertGLPointToMapPositon: method is not working correctly.
Create the relation grid in init() method. Fix the -(GNode *)gridNodeWithReference:(NSUInteger)ref method.
Delete the unnecessary c files. Use OC classes to replace them.
Fix the convertGLPointToMapPositon() bug.
Add OIMPerson class. Unfinished.
Add displayXXXX properties for debugging.
Update projection methods.
The GLProjection parameters are set when creating a new OIMTransform object.
Update for the new version.
Project update.
State changed.