Burst Point Library File Format

## Name

burst_point_library — Data output by the burst-file command from the burst tool.

## FORMAT

Burst point library files are composed of single-line records. Each line begins with a digit that identifies the type of record it represents. The file is composed of one or more runs that begin with a run header. Each shotline that intersects the target will result in a shotline header that is followed by one or more shotline intersection records. If a burst point occurs along a shotline, the burst ray header will immediately follow that shotline's last intersection record. Each burst ray header records will be immediately followed by burst ray intersection records, one for each ray that strikes a critical component.

Table 1. Burst Point Library File Format

Record Description | Field Format | Field Description
--- | --- | ---
run header | '1' | record number 1
| 1x,f9.4 | attack azimuth (degrees)
| 1x,f8.4 | attack elevation (degrees)
| 1x,f5.2 | burst distance
| 1x,f10.2 | projected area associated with burst point
| 1x,6a | units (mm,cm,inches,feet,meters)
| 1x,f9.6 | ray solid angle (steradians)
shotline header | '2' | record number 2
| 1x,f8.3 | Y' coordinate of shotline
| 1x,f8.3 | Z' coordinate of shotline
shotline intersections | '3' | record number 3
| 1x,f8.2 | X' coordinate of component intersection
| 1x,f8.2 | line-of-sight thickness of component
| 1x,i4 | component code number
| 1x,i2 | space code
| 1x,f7.3 | sine of fallback angle of exit normal
| 1x,f7.2 | rotation angle of exit normal (degrees)
| 1x,f7.3 | cosine of obliquity angle at entry
| 1x,a1 | burst flag ('1' for yes, '0' for no)
burst ray header | '4' | record number 4
| 1x,f8.3 | azimuth angle WRT shotline (radians)
| 1x,f8.3 | sine of elevation angle WRT shotline
| 1x,i6 | sequential ray number for this burst point
burst ray intersections | '5' | record number 5
| 1x,f10.3 | distance to first contact with component
| 1x,f9.3 | line-of-sight thickness of component
| 1x,f9.3 | normal thickness of component
| 1x,i4 | space code
| ix,i4 | component code number
| ix,f6.3 | cosine of obliquity angle at entry

## SEE ALSO

burst(1)

## AUTHOR

BRL-CAD Team

## COPYRIGHT

This software is Copyright (c) 1989-2021 by the United States Government as represented by U.S. Army Research Laboratory.

## BUG REPORTS

Reports of bugs or problems should be submitted via electronic mail to `<devs@brlcad.org>`