Facility Vulnerability with VISAC |
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The files used by VISAC are based on the BRL-CAD system. BRL-CAD uses several formats, one of which is a text file that consists of instructions that the user would ordinarily type at the user command prompt. The following table lists the subset of BRL-CAD commands that VISAC and its viewers use:
| Command | Use |
|---|---|
| title | title Description follows |
| units | units feet |
| in | in solidname type param_1 ... param_n |
| regdef | regdef id air los material |
| r | r regionname operator_1 solidname_1 ... operator_n solidname_n |
| g | g regionname_1 ... regionname_n |
The following solid types can be used by VISAC: rpp, arb8, trc, ellg, rcc, sph. The material codes that VISAC uses are 100-air, 500-concrete, 900-critical component. Comments can be inserted into the file using "/*" at the beginning and "*/" at the end of each comment line.
In addition to the above BRL-CAD commands, the geometry files that VISAC uses
can also contain VISAC-specific information. Each geometry file should represent
a single building. The extra information to describe the building is listed in the
file using the "visac" command:
| Keyword | Use |
|---|---|
| name | name buildingname |
| description | description description follows |
| ground | ground groundlevel |
| sinkage | sinkage sinkagevalue |
| angle | angle rotationangle |
| floors | floors lower_1 upper_1 ... lower_n upper_n |
| total | total operator_1 solidname_1 ... operator_n solidname_n |
| toptotal | toptotal operator_1 solidname_1 ... operator_n solidname_n |
| soil | soil solidname_1 ... solidname_n |
The name should be a short string and the same as the highest level group defined for the building. The total and toptotal are defined just like BRL-CAD regions. The soil command lists all of the soil cut-out regions. Floor values include two values per floor - the lower and upper. Use of the "*" in group definitions should be used carefully and should follow at least one character. ("power*.r*" is okay, "*.r1" is not.)
units feet visac name p01int visac ground 12.3 visac sinkage 40.3 visac floors -24.0 12.8 visac description Intake Building /* p01int.txt Intake Building Date: January 16, 2002 */ /* consists of the intake building and a small pit next to the building */ /* origin: 0.00 196.00 -28.00 (4' walls, floor, and roof) */ in p01int1f.s1 rpp 0.00 60.00 196.00 320.00 -28.00 -24.00 in p01int1r.s1 rpp 0.00 60.00 196.00 320.00 12.80 15.80 in p01int1w.s1 rpp 0.00 60.00 196.00 200.00 -24.00 12.80 in p01int1w.s2 rpp 0.00 60.00 316.00 320.00 -24.00 12.80 in p01int1w.s3 rpp 56.00 60.00 200.00 316.00 -24.00 12.80 in p01int1w.s4 rpp 0.00 4.00 200.00 316.00 -24.00 12.80 /* origin: 60.00 249.00 6. (2' walls and floor, no roof)*/ in p01int2f.s1 rpp 60.00 78.00 249.00 275.30 4. 6. in p01int2w.s1 rpp 60.00 78.00 249.00 251.00 6. 15.80 in p01int2w.s2 rpp 60.00 78.00 273.30 275.30 6. 15.80 in p01int2w.s3 rpp 76.00 78.00 251.00 273.30 6. 15.80 /* total solids */ in totalint01.s1 rpp 0.00 60.00 196.00 320.00 -28.00 15.80 in totalint01.s2 rpp 60.00 78.00 249.00 275.30 6.00 15.80 in toptotal.s1 rpp 0.00 60.00 196.00 320.00 0. 1. in toptotal.s2 rpp 60.00 78.00 249.00 275.30 0. 1. in sinkint01.s1 rpp 0.00 60.00 196.00 320.00 -28.00 15.80 in sinkint01.s2 rpp 60.00 78.00 249.00 275.30 4.00 15.80 visac total u totalint01.s1 u totalint01.s2 visac toptotal u toptotal.s1 u toptotal.s2 visac soil sinkint01.s1 sinkint01.s2 regdef 1001 0 100 500 r p01int1f.r1 u p01int1f.s1 r p01int1r.r1 u p01int1r.s1 r p01int1w.r1 u p01int1w.s1 r p01int1w.r2 u p01int1w.s2 r p01int1w.r3 u p01int1w.s3 r p01int1w.r4 u p01int1w.s4 r p01int2f.r1 u p01int2f.s1 r p01int2w.r1 u p01int2w.s1 r p01int2w.r2 u p01int2w.s2 r p01int2w.r3 u p01int2w.s3 g p01int1 p01int1f.r1 p01int1r.r1 p01int1w.r* g p01int2 p01int2f.r1 p01int2w.r* g p01int p01int1 p01int2
Oak Ridge National Laboratory, 2004