Home My Page Projects Code Snippets Project Openings diderot

# SCM Repository

[diderot] Diff of /branches/charisee/TODO
 [diderot] / branches / charisee / TODO

# Diff of /branches/charisee/TODO

revision 1140, Fri May 6 14:16:00 2011 UTC revision 1155, Sun May 8 14:43:30 2011 UTC
# Line 85  Line 85
85  provided that X*Y, X/Y, X+Y, X-Y are already supported.  provided that X*Y, X/Y, X+Y, X-Y are already supported.
86  Nearly every Diderot program would be simplified by this.  Nearly every Diderot program would be simplified by this.
87
88  Want: non-trivial field expressions & functions:  [GLK:5] Want: non-trivial field expressions & functions:
90    field#0(2)[] Vlen = |Vimg ⊛ bspln3|;    field#0(2)[] Vlen = |Vimg ⊛ bspln3|;
91  to get a scalar field of vector length, or  to get a scalar field of vector length, or
# Line 151  Line 151
151
152  Python/ctypes interface to run-time  Python/ctypes interface to run-time
153
154    Allow the convolution to be specified either as a single 1D kernel
155    (as we have it now):
156      field#2(3)[] F = bspln3 ⊛ img;
157    or, as a tensor product of kernels, one for each axis, e.g.
158      field#0(3)[] F = (bspln3 ⊗ bspln3 ⊗ tent) ⊛ img;
159    This is especially important for things like time-varying data, or
160    other multi-dimensional fields where one axis of the domain is very
161    different from the rest.  What is very unclear is how, in such cases,
162    we should notate the gradient, when we only want to differentiate with
163    respect to some of the axes.
164
165  ==============================  ==============================
166  LONG TERM ====================  LONG TERM ====================
167  ==============================  ==============================

Legend:
 Removed from v.1140 changed lines Added in v.1155