Differences between revisions 3 and 4
Revision 3 as of 2016-02-10 11:45:05
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Editor: DianeLambert
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Revision 4 as of 2016-02-10 12:04:43
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Editor: tcampb
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Deletions are marked like this. Additions are marked like this.
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First line is Q (resolution). This gives the number of nodes for i and j. Multiple it by 6 coordinate vector spaces to fill out the entire region. Note: Q*Q*6 is the total number of nodes, and line entries in this file. A Q of 512 is the largest that we represent. It contains 1.5 million vertices and 56 MB uncompressed. First line is Q (resolution). This gives the number of nodes for i and j. Multiply it by 6 coordinate vector spaces to fill out the entire region. Note: Q*Q*6 is the total number of nodes, and line entries in this file. A Q of 512 is the largest that we represent. It contains 1.6 million vertices and 56 MB uncompressed.

SIGMA.TXT

(Compiled by TC)

Description

SIGMA.TXT is made by densify and is located in the SHAPEFILES/ directory. This file is essentially a copy of the most recently made ICQ shape file SHAPE.TXT, with a fourth column of sigma values.

First line is Q (resolution). This gives the number of nodes for i and j. Multiply it by 6 coordinate vector spaces to fill out the entire region. Note: Q*Q*6 is the total number of nodes, and line entries in this file. A Q of 512 is the largest that we represent. It contains 1.6 million vertices and 56 MB uncompressed.

Second line and following: The location of a vertex in i, j, k space (Cartesian coordinates), and the sigma value.

Example of SIGMA.TXT

         512
     0.00810     0.19764     0.13333         0.29844E-01
     0.00871     0.19742     0.13360         0.28206E-01
     0.00932     0.19721     0.13386         0.27425E-01
     0.00994     0.19700     0.13414         0.27743E-01
     0.01055     0.19677     0.13441         0.28415E-01
     0.01116     0.19655     0.13466         0.31917E-01
     0.01177     0.19633     0.13493         0.31631E-01
     0.01239     0.19615     0.13521         0.28469E-01
     0.01300     0.19594     0.13549         0.28856E-01

SIGMA.TXT (last edited 2021-11-30 17:10:09 by JohnWeirich)