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iPOGO V5 Help Manual On-Line |
Group: |
900) Sub Commands |
Methodology | |
| Command: | -9 |
| Alpha Alias: | -9 |
| Description: | Repeats last bearing used |
| Data Format: | -9 Distance {[Distance] .. } 0 |
| Problem: | Given points 1 and 2. Set points 3 through 5 on the same line at 100 foot intervals. |
| Solution: | 1 3 2 1 2 100
-9 100
100
0 ; |
Data Description
| Sub-Command | -9 | Saves the last bearing used in the 1 command and uses that bearing to compute additional points on the same line. Computes a point number with its associated coordinate for each distance following the command. Does not change the saved bearing.
The 9E9 sub-command supersedes the -9 command and cancels the -9 instruction. The reverse, however, does not apply. The program will read -9 as a distance to the left when using the 9E9 sub-command. Note:The -9 sub-command is similar to -9E9 except in -9 the direction of the saved bearing is not altered when a minus distance is entered. |
| Distance | 100 | Length of the line from the known point to the point which is to be computed.
If a negative number is entered following the -9 sub-command, the next point number is set in a direction 180° opposite to the input direction. The bearing is not altered to the new direction. |
| {[Distance] .. } | 100 | Repeating feature of this command. Numbers separated by commas or spaces following the command are read as distances until the end sub-command 0 or ES encountered. |
| End of
Sub-Command | 0 | Ends with 0 (zero) or ES. |
Example Command File
$ Example data file for the -9 sub-command
$ set intial points
0 1 1000 1000
2 1000 1100 ;
$ set the points on line with the -9 command
1 3 2 1 2 100
-9 100
100
0 ;
$ define feature code
15.1 PL PropLine 7 1 1;
$ turn plot on
91 ;
$ activate the PL feature
15 pl ;
100 Inverse the results;
7 1 1 -5 ;