Home My Page Projects Code Snippets Project Openings diderot
Summary Activity Tracker Tasks SCM

SCM Repository

[diderot] Annotation of /branches/pure-cfg/TODO
ViewVC logotype

Annotation of /branches/pure-cfg/TODO

Parent Directory Parent Directory | Revision Log Revision Log


Revision 787 - (view) (download)

1 : glk 781 ========================
2 :     SHORT TERM ============= (for curvature-based VR)
3 :     ========================
4 :    
5 : jhr 763 Outer products
6 :     syntax [DONE]
7 :     typechecking
8 :     IL and codegen
9 :    
10 :     Add M dot v, v dot M, and M dot N
11 :    
12 :     Identity matrix [DONE up to code generation]
13 :    
14 :     trace [DONE]
15 :    
16 :     expand trace in mid to low translation
17 :    
18 : glk 785 extend norm (|exp|) to tensor[3,3]
19 : jhr 763
20 :     Use ∇⊗ etc syntax
21 :     syntax [DONE]
22 :     typechecking
23 :     IL and codegen
24 :    
25 :     Add sequence types
26 :     syntax
27 :     types: ty '{' INT '}'
28 :     value construction: '{' e1 ',' … ',' en '}'
29 :     indexing: e '{' e '}'
30 :    
31 :     IL support for higher-order tensor values (matrices, etc).
32 :     tensor construction
33 :     tensor indexing and slicing
34 : jhr 767 verify that hessians work correctly
35 : jhr 763
36 :     Add type aliases for color types
37 :     rgb = real{3}
38 :     rgba = real{4}
39 : glk 781
40 : jhr 784 Infix dot product and cross product [DONE]
41 : glk 781
42 : jhr 784 lerp on scalars and vectors [DONE]
43 :    
44 : glk 781 ==============================
45 : glk 785 other SHORT TERM ============= (including needed for LIC)
46 : glk 781 ==============================
47 :    
48 : glk 785 determinant ("det") for tensor[3,3]
49 :    
50 :     Decide if we want to allow redefinitions of variables
51 :     (as in vr-lite-cam.diderot)
52 :    
53 :     extend norm (|exp|) to all tensor types
54 :    
55 :     extend normalize to all tensor types
56 :    
57 : glk 781 vector fields: convolution on vector images
58 :    
59 :     ==============================
60 :     MEDIUM TERM ================== (needed for streamlines & tractography)
61 :     ==============================
62 :    
63 :     ability to emit/track/record variables into dynamically re-sized
64 :     runtime buffer
65 :    
66 :     evals & evecs for symmetric tensor[3,3]
67 :    
68 :     tensor fields: convolution on general tensor images
69 :    
70 :     ==============================
71 :     other MEDIUM TERM ============ (needed for particles)
72 :     ==============================
73 :    
74 :     run-time birth and death of strands
75 :    
76 :     "initially" supports lists
77 :    
78 :     "initially" supports lists of positions output from
79 :     different initalization Diderot program
80 :    
81 :     spatial data structure that permits strands' queries of neighbors
82 :    
83 : jhr 784 proper handling of stabilize method
84 :    
85 : glk 781 ==============================
86 :     LONG TERM ====================
87 :     ==============================
88 :    
89 :     co- vs contra- index distinction
90 :    
91 : glk 783 add ":" for tensor dot product (contracts out two indices
92 :     instead of one like •), valid for all pairs of tensors with
93 :     at least two indices
94 :    
95 : glk 781 some indication of tensor symmetry
96 :     (have to identify the group of index permutations that are symmetries)
97 :    
98 :     dot works on all tensors
99 :    
100 :     outer works on all tensors
101 :    
102 :     Einstein summation notation
103 :    
104 :     "tensor comprehension" (like list comprehension)
105 : jhr 784
106 :     ======================
107 :     BUGS =================
108 :     ======================
109 :    
110 :     test/mip-cam.diderot:
111 :     // generated C code looks like "(float)p_ui_0--0.5e0f"
112 :     //real rayU = 2.0*camUmax*(real(ui) - -0.5)/real(imgResU) - camUmax;
113 :    
114 :     test/vr-kcomp.diderot:
115 :     // HEY (scoping BUG): the strand parameters (e.g. ui, vi) ...
116 :    
117 :     test/zslice2.diderot:
118 :     // but is this not valid syntax for creating field in one shot?
119 :     //field#2(3)[] F = (load("../data/zimg112.nrrd")) ⊛ bspln3;
120 :     // It is valid syntax, but there is a bug in the conversion from HighIL to MidIL
121 :    
122 :     test/zslice2.diderot:
123 :     // HEY (bug) bspln5 leads to problems ...
124 :     // uncaught exception Size [size]
125 :     // raised at c-target/c-target.sml:47.15-47.19
126 :     //field#4(3)[] F = img ⊛ bspln5;
127 :    
128 :    

root@smlnj-gforge.cs.uchicago.edu
ViewVC Help
Powered by ViewVC 1.0.0