Burst

burst is one of multiple BRL-CAD Commands.

Running BURST

For a detailed overview of burst, see the burst man page (TODO - add link to this when we get it online...)

To do a basic burst run, the first step is to define a burst command file. The following is a simple example based on the ktank.g model distributed with BRL-CAD (we'll refer to this file as ktank.b):

units                   inches
shotline-file           ktank_burst.shotlines
error-file              ktank_burst.log
plot-file               ktank_burst.plot
image-file              ktank_burst.pix
burst-file              ktank.burst
burst-air-file          ktank_air.ids
burst-armor-file        ktank_armor.ids
critical-comp-file      ktank_crit.ids
color-file              ktank_burst_colors
burst-distance          0
cell-size               16
attack-direction        0 0
max-spall-rays          50
cone-half-angle         45
target-file             ktank.g
target-objects          tank
report-overlaps         no
shotline-burst          yes
#ground-plane           yes 66 200 200 200 200
execute

We also need to create a number of support files to specify idents:

ktank_air.ids:

2-3
5

ktank_armor.ids:

100-121

ktank_crit.ids:

618-839
940-949

We deliberately don't create a file named ktank_burst_colors, to provide an error to log.

We also need to copy the ktank.g database from share/db/ktank.g into the current directory. With this setup, burst can be run with the command line command:

 burst -b < ktank.b

BURST Results

The results should be as follows:

ktank.burst:

1    0.0000   0.0000  0.00     256.00 inches  0.028755
2  -48.000  -48.000
3    87.87    29.73   512  1  -0.133  180.00   0.991 0
3    51.87    29.73   513  1  -0.133  180.00   0.991 0
3    15.87    29.73   514  1  -0.133  180.00   0.991 0
3   -20.13    29.73   515  1  -0.133  180.00   0.991 0
3   -56.13    29.73   516  9  -0.133  180.00   0.991 0
2   48.000  -48.000
3    87.87    29.73   505  1  -0.133  180.00   0.991 0
3    51.87    29.73   506  1  -0.133  180.00   0.991 0
3    15.87    29.73   507  1  -0.133  180.00   0.991 0
3   -20.13    29.73   508  1  -0.133  180.00   0.991 0
3   -56.13    29.73   509  9  -0.133  180.00   0.991 0
2  -48.000  -32.000
3   125.55    15.10   517  1  -0.727  180.00   0.686 0
...

ktank_burst.shotlines:

1    0.0000   0.0000   16.00   55.04  -55.04   60.16  -61.02 inches
2  -48.000  -48.000
3    87.87  -0.133  180.00   512    29.73    29.73  1    0.00    0.00
3    51.87  -0.133  180.00   513    29.73    29.73  1    0.00    0.00
3    15.87  -0.133  180.00   514    29.73    29.73  1    0.00    0.00
3   -20.13  -0.133  180.00   515    29.73    29.73  1    0.00    0.00
3   -56.13  -0.133  180.00   516    29.73    29.73  9    0.00    0.00
2   48.000  -48.000
3    87.87  -0.133  180.00   505    29.73    29.73  1    0.00    0.00
3    51.87  -0.133  180.00   506    29.73    29.73  1    0.00    0.00
3    15.87  -0.133  180.00   507    29.73    29.73  1    0.00    0.00
3   -20.13  -0.133  180.00   508    29.73    29.73  1    0.00    0.00
3   -56.13  -0.133  180.00   509    29.73    29.73  9    0.00    0.00
2  -48.000  -32.000
3   125.55  -0.727  180.00   517    22.00    15.10  1   46.66   46.66
3    78.39   0.933  180.00   512    30.00    10.77  1   68.96   68.96
...

as well as plot and pix files. (TODO - show example images...)