|
Size: 1294
Comment:
|
Size: 1487
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| ===== (Compiled by TC) ===== | |
| Line 5: | Line 4: |
| 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. | This text file is essentially a copy of the most recently made ICQ shape file [[SHAPE.TXT]] that includes an additional column of sigma values. |
| Line 7: | Line 6: |
| 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''' is made by [[densify]] and is located in the [[SHAPEFILES]]/ directory. |
| Line 9: | Line 8: |
| Second line and following: The location of a vertex in i, j, k space (Cartesian coordinates), and the sigma value. | Here is a sample '''SIGMA.TXT''' file: |
| Line 11: | Line 10: |
| == Example of SIGMA.TXT == | |
| Line 24: | Line 22: |
The output values are: '''Line 1''' - Q (resolution). This gives the number of nodes for i and j. Multiple Q by 6 coordinate vector spaces to fill out the entire region. . (!) 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 is 56 MB uncompressed. '''Lines 2 and following''' - The location of a vertex in i, j, k space (Cartesian coordinates). (./) Above is copied exactly from SHAPE.TXT. Is it accurate?? '''col 4''' - Sigma values. ---------- ''(Compiled by TC)'' CategoryFiles |
SIGMA.TXT
Description
This text file is essentially a copy of the most recently made ICQ shape file SHAPE.TXT that includes an additional column of sigma values.
SIGMA.TXT is made by densify and is located in the SHAPEFILES/ directory.
Here is a sample SIGMA.TXT file:
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-01The output values are:
Line 1 - Q (resolution). This gives the number of nodes for i and j. Multiple Q by 6 coordinate vector spaces to fill out the entire region.
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 is 56 MB uncompressed.
Lines 2 and following - The location of a vertex in i, j, k space (Cartesian coordinates).
Above is copied exactly from SHAPE.TXT. Is it accurate??
col 4 - Sigma values.
(Compiled by TC)