Diff of /branches/lamont_dev/TODO

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	revision 1211, Fri May 13 04:52:06 2011 UTC	revision 1212, Fri May 13 08:00:33 2011 UTC
#	Line 60	Line 60
60	to index into complete list	to index into complete list
61
62	[GLK:6] Use of Teem's "hest" command-line parser for getting	[GLK:6] Use of Teem's "hest" command-line parser for getting
63	any input variables that are not defined in the source file	any "input" variables that are not defined in the source file.
64
65	[GLK:7] ability to declare a field so that probe positions are	[GLK:7] ability to declare a field so that probe positions are
66	*always* "inside"; with various ways of mapping the known image values	*always* "inside"; with various ways of mapping the known image values
#	Line 205	Line 205
205	field#2(3)[] F = bspln3 ⊛ img;	field#2(3)[] F = bspln3 ⊛ img;
206	or, as a tensor product of kernels, one for each axis, e.g.	or, as a tensor product of kernels, one for each axis, e.g.
207	field#0(3)[] F = (bspln3 ⊗ bspln3 ⊗ tent) ⊛ img;	field#0(3)[] F = (bspln3 ⊗ bspln3 ⊗ tent) ⊛ img;
208	This is especially important for things like time-varying data, or	This is especially important for things like time-varying fields
209	other multi-dimensional fields where one axis of the domain is very	and the use of scale-space in field visualization: one axis of the
210	different from the rest, and hence must be treated separately when	must be convolved with a different kernel during probing.
211	it comes to convolution.  What is very unclear is how, in such cases,	What is very unclear is how, in such cases, we should notate the
212	we should notate the gradient, when we only want to differentiate with	gradient, when we only want to differentiate with respect to some
213	respect to some subset of the axes.  One ambitious idea would be:	subset of the axes.  One ambitious idea would be:
214	field#0(3)[] Ft = (bspln3 ⊗ bspln3 ⊗ tent) ⊛ img; // 2D time-varying field	field#0(3)[] Ft = (bspln3 ⊗ bspln3 ⊗ tent) ⊛ img; // 2D time-varying field
215	field#0(2)[] F = lambda([x,y], Ft([x,y,42.0]))     // restriction to time=42.0	field#0(2)[] F = lambda([x,y], Ft([x,y,42.0]))     // restriction to time=42.0
216	vec2 grad = ∇F([x,y]);                             // 2D gradient	vec2 grad = ∇F([x,y]);                             // 2D gradient

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