Fixed theta basis modify in xi1 functions -- were buggy at apex nodes on certain axes. Put all cases in one function modify_theta_in_xi1 and added enumerator parameter for each case: MODIFY_THETA_DECREASING_IN_XI1, MODIFY_THETA_INCREASING_IN_XI1, MODIFY_THETA_NON_DECREASING_IN_XI1, MODIFY_THETA_NON_INCREASING_IN_XI1.
Fixed theta basis modify in xi1 functions -- were buggy at apex nodes
on certain axes. Put all cases in one function modify_theta_in_xi1
and added enumerator parameter for each case:
MODIFY_THETA_DECREASING_IN_XI1,
MODIFY_THETA_INCREASING_IN_XI1,
MODIFY_THETA_NON_DECREASING_IN_XI1,
MODIFY_THETA_NON_INCREASING_IN_XI1.


git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@1687 3c1deb5b-d424-0410-962d-aba41a686d42

OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc