Diff of /trunk/TODO

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	revision 1388, Fri Jun 24 14:45:33 2011 UTC	revision 1389, Fri Jun 24 17:54:44 2011 UTC
#	Line 5	Line 5
5	SHORT TERM ============= (*needed* for streamlines & tractography)	SHORT TERM ============= (*needed* for streamlines & tractography)
6	========================	========================
7
	Remove CL from compiler [DONE]
8	[GLK:2] Add sequence types (needed for evals & evecs)	[GLK:2] Add sequence types (needed for evals & evecs)
9	syntax	syntax
10	types: ty '{' INT '}'	types: ty '{' INT '}'
#	Line 17	Line 15
15	tensor[3,3] (requires sequences)	tensor[3,3] (requires sequences)
16
17	ability to emit/track/record variables into dynamically re-sized	ability to emit/track/record variables into dynamically re-sized
18	runtime buffer	runtime output buffer
19
20	tensor fields: convolution on general tensor images (order > 1)	tensor fields: convolution on general tensor images (order > 1)
21
#	Line 25	Line 23
23	SHORT-ISH TERM ========= (to make using Diderot less annoying to	SHORT-ISH TERM ========= (to make using Diderot less annoying to
24	========================  program in, and slow to execute)	========================  program in, and slow to execute)
25
	value-numbering optimization [DONE]
26	Allow ".ddro" file extensions in addition to ".diderot"	Allow ".ddro" file extensions in addition to ".diderot"
27
28	Be able to output values of type tensor[2,2] and tensor[3,3];	Be able to output values of type tensor[2,2] and tensor[3,3];
#	Line 50	Line 46
46	complete list of values, as well as list of start indices and lengths	complete list of values, as well as list of start indices and lengths
47	to index into complete list	to index into complete list
48
49	[GLK:5] Use of Teem's "hest" command-line parser for getting	[GLK:5] ability to declare a field so that probe positions are
	any "input" variables that are not defined in the source file. [DONE]
	[GLK:6] ability to declare a field so that probe positions are
50	*always* "inside"; with various ways of mapping the known image values	*always* "inside"; with various ways of mapping the known image values
51	to non-existant index locations.  One possible syntax emphasizes that	to non-existant index locations.  One possible syntax emphasizes that
52	there is a index mapping function that logically precedes convolution:	there is a index mapping function that logically precedes convolution:
#	Line 76	Line 69
69	rgb = real{3}	rgb = real{3}
70	rgba = real{4}	rgba = real{4}
71
72		Revisit how images are created within the language.
73		The "load" operator should probably go away, and its strangs
74		that strings are there only as a way to refer to nrrd filenames
75
76	==============================	==============================
77	MEDIUM TERM ================== (*needed* for particles)	MEDIUM TERM ================== (*needed* for particles)
78	==============================	==============================
#	Line 112	Line 109
109	test/illust-vr.diderot is good example of program that uses multiple	test/illust-vr.diderot is good example of program that uses multiple
110	such 1-D fields basically as lookup-table-based function evaluation	such 1-D fields basically as lookup-table-based function evaluation
111
	expand trace in mid to low translation [DONE]
112	extend norm (|exp|) to all tensor types [DONE for vectors and matrices]	extend norm (|exp|) to all tensor types [DONE for vectors and matrices]
113
114	determinant ("det") for tensor[3,3]	determinant ("det") for tensor[3,3]
#	Line 133	Line 128
128	LONG TERM ==================== (make Diderot more interesting/attractive from	LONG TERM ==================== (make Diderot more interesting/attractive from
129	==============================  a research standpoint)	==============================  a research standpoint)
130
131		[GLK:6] Want code-generation working for tensors of order three.
132		Order three matters for edge detection in scalar fields (to get
133		second derivatives of gradient magnitude), second derivatives
134		of vector fields (for some feature extraction), and first
135		derivatives of diffusion tensor fields.
136
137	IL support for higher-order tensor values (matrices, etc).	IL support for higher-order tensor values (matrices, etc).
138	tensor construction [DONE]	tensor construction [DONE]
139	tensor indexing [DONE]	tensor indexing [DONE]
140	tensor slicing	tensor slicing
	verify that hessians work correctly [DONE]
141
142	Better handling of variables that determines the scope of a variable	Better handling of variables that determines the scope of a variable
143	based on its actual use, instead of where the user defined it.  So,	based on its actual use, instead of where the user defined it.  So,

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