[vtkusers] Visulazing values rather than coordinates

anast.jm at pg.com anast.jm at pg.com
Wed Feb 26 10:30:24 EST 2003


Arun,

Your coordinates look structured, which is good. You can make a structured 
points dataset and render the volume with any of the vtk rendering options 
(texture mapping, raycasting etc.). Your 2D data would just be an image so 
have a look at vtkImageViewer. For volumes, have a look at 
SimpleRayCast.tcl in the Examples/VolumeRendering/  directory of vtk4. One 
warning, I think all of the rendering methods will not render float values 
so you may need to cast/scale to the appropriate type. Check the doxygen 
pages of the rendering method for specifics....john




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Arun Nagarajan <arun at cis.jhu.edu>
                        Sent by: vtkusers-admin at public.kitware.com
02/26/2003 09:59 AM
Please respond to Arun Nagarajan

 
               To:      vtkusers at public.kitware.com
        cc:     (bcc: John Anast-JM/PGI)
        Subject:        [vtkusers] Visulazing values rather than coordinates

Hi all,

I am not sure how exactly to visualize this input data I have at hand. I
have looked through the sample files and have come up with nothing. as 
most
of them deal with coordinates rather than the value at the coordinates. I
have included a portion of the file. The format is
[x y z]:  value_at_that_coordinate

Any help suggestions as to what class to use to visualize this will be 
most
appreciated. The data is currently in 2D, but there will be 3D data as 
well.

Thanks,

Arun
----------------------------
small portion of the file:

...
[36 0 0]:  34.6505
[37 0 0]:  35.6041
[38 0 0]:  36.5573
[39 0 0]:  37.5103
[40 0 0]:  38.4633
[41 0 0]:  39.4166
[42 0 0]:  40.3702
[43 0 0]:  41.3245
[44 0 0]:  42.2797
[45 0 0]:  43.236
[46 0 0]:  44.1938
[47 0 0]:  45.1533
[48 0 0]:  46.1148
[49 0 0]:  47.0787
[50 0 0]:  48.0453
[51 0 0]:  49.015
[52 0 0]:  49.9883
[53 0 0]:  50.9655
[54 0 0]:  51.9473
[55 0 0]:  52.9341
[56 0 0]:  53.9264
[57 0 0]:  54.9247
[58 0 0]:  55.9294
[59 0 0]:  56.9411
[60 0 0]:  57.9598
[61 0 0]:  58.9858
[62 0 0]:  60.0192
[63 0 0]:  61.0597
[64 0 0]:  62.1069
[65 0 0]:  63.1605
[66 0 0]:  64.2197
[67 0 0]:  65.2836
[68 0 0]:  66.3513
[69 0 0]:  67.4218
[70 0 0]:  68.4941
[71 0 0]:  69.5672
[72 0 0]:  70.6399
[73 0 0]:  71.7115
[74 0 0]:  72.7811
[75 0 0]:  73.8479
[76 0 0]:  74.9115
[77 0 0]:  75.9713
[78 0 0]:  77.0269
[79 0 0]:  78.0781
[0 1 0]:  79.0708
[1 1 0]:  0.114603
[2 1 0]:  1.15337
[3 1 0]:  2.18717
[4 1 0]:  3.21614
[5 1 0]:  4.24046
[6 1 0]:  5.26034
[7 1 0]:  6.276
[8 1 0]:  7.28769
[9 1 0]:  8.29565
[10 1 0]:  9.30012
[11 1 0]:  10.3013
[12 1 0]:  11.2995
[13 1 0]:  12.2949
[14 1 0]:  13.2876
[15 1 0]:  14.2779
[16 1 0]:  15.2658
[17 1 0]:  16.2516
[18 1 0]:  17.2353
[19 1 0]:  18.2171
[20 1 0]:  19.1969
[21 1 0]:  20.1749
[22 1 0]:  21.1512
[23 1 0]:  22.1257
[24 1 0]:  23.0985
[25 1 0]:  24.0696
[26 1 0]:  25.0391
[27 1 0]:  26.0071
[28 1 0]:  26.9735
[29 1 0]:  27.9384
[30 1 0]:  28.9019
[31 1 0]:  29.864
[32 1 0]:  30.8248
[33 1 0]:  31.7843
[34 1 0]:  32.7426
[35 1 0]:  33.6998
[36 1 0]:  34.656
[37 1 0]:  35.6112
[38 1 0]:  36.5655
[39 1 0]:  37.5192
[40 1 0]:  38.4722
[41 1 0]:  39.4248
[42 1 0]:  40.3771
[43 1 0]:  41.3294
[44 1 0]:  42.2818
[45 1 0]:  43.2346
[46 1 0]:  44.188
[47 1 0]:  45.1424
[48 1 0]:  46.0982
[49 1 0]:  47.0557
[50 1 0]:  48.0154
[51 1 0]:  48.9778
[52 1 0]:  49.9433
[53 1 0]:  50.9127
[54 1 0]:  51.8865
[55 1 0]:  52.8653
[56 1 0]:  53.85
[57 1 0]:  54.8411
[58 1 0]:  55.8393
[59 1 0]:  56.845
[60 1 0]:  57.8588
[61 1 0]:  58.881
[62 1 0]:  59.9115
[63 1 0]:  60.9504
[64 1 0]:  61.9973
[65 1 0]:  63.0516
[66 1 0]:  64.1125
[67 1 0]:  65.1791
[68 1 0]:  66.2503
[69 1 0]:  67.3249
[70 1 0]:  68.4018
[71 1 0]:  69.4795
[72 1 0]:  70.5571
[73 1 0]:  71.6334
[74 1 0]:  72.7075
[75 1 0]:  73.7786
[76 1 0]:  74.8461
[77 1 0]:  75.9094
[78 1 0]:  76.9681
[79 1 0]:  78.0219
[0 2 0]:  79.0143
[1 2 0]:  0.0602851
[2 2 0]:  1.10073
[3 2 0]:  2.13582
[4 2 0]:  3.16572
[5 2 0]:  4.19066
[6 2 0]:  5.21091
[7 2 0]:  6.22676
[8 2 0]:  7.2385
[9 2 0]:  8.24641
[10 2 0]:  9.25081
[11 2 0]:  10.252
[12 2 0]:  11.2502
[13 2 0]:  12.2457
[14 2 0]:  13.2386
[15 2 0]:  14.2293
[16 2 0]:  15.2179
[17 2 0]:  16.2046
[18 2 0]:  17.1894
[19 2 0]:  18.1724
[20 2 0]:  19.1538
[21 2 0]:  20.1337
[22 2 0]:  21.1119
[23 2 0]:  22.0887
[24 2 0]:  23.0639
[25 2 0]:  24.0377
[26 2 0]:  25.01
[27 2 0]:  25.9808
[28 2 0]:  26.9501
[29 2 0]:  27.918
[30 2 0]:  28.8844
[31 2 0]:  29.8494
[32 2 0]:  30.813
[33 2 0]:  31.775
[34 2 0]:  32.7357
[35 2 0]:  33.6949
[36 2 0]:  34.6528
[37 2 0]:  35.6093
[38 2 0]:  36.5644
[39 2 0]:  37.5183
[40 2 0]:  38.4709
[41 2 0]:  39.4225
[42 2 0]:  40.3731
[43 2 0]:  41.3229
[44 2 0]:  42.272
[45 2 0]:  43.2207
[46 2 0]:  44.1694
[47 2 0]:  45.1183
[48 2 0]:  46.0677
[49 2 0]:  47.0183
[50 2 0]:  47.9705
[51 2 0]:  48.9248
[52 2 0]:  49.882
[53 2 0]:  50.8427
[54 2 0]:  51.8078
[55 2 0]:  52.7781
[56 2 0]:  53.7545
[57 2 0]:  54.7378
[58 2 0]:  55.7288
[59 2 0]:  56.7283
[60 2 0]:  57.7369
[61 2 0]:  58.755
[62 2 0]:  59.7829
[63 2 0]:  60.8205
[64 2 0]:  61.8676
[65 2 0]:  62.9236
[66 2 0]:  63.9875
[67 2 0]:  65.0582
[68 2 0]:  66.1344
[69 2 0]:  67.2147
[70 2 0]:  68.2975
[71 2 0]:  69.3815
[72 2 0]:  70.4653
[73 2 0]:  71.5476
[74 2 0]:  72.6274
...

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