Help Manual
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iPOGO V5 Help Manual On-Line |
Group: Command: |
900) Sub Commands -9E9 or RLB |
Methodology
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| Command: | -9E9 |
| Alpha Alias: | RLB |
| Description: | Repeats the last bearing used |
| Data Format: | -9E9 Distance {[Distance] .. } 0 |
| Problem: | Given point 20. Set point 21 at a bearing of North 85° 30' 06" East, 75.16 feet. Then continue to set points 22 and 23 on line at 40 feet and 20.2 feet respectively. |
| Solution: |
1 21 20 -1 85 30 6 75.16
-9E9 40
20.2
0 ; |
Data Description
Sub-Command
| -9E9
| Saves the last bearing used in the 1 command and uses that bearing to compute additional points on the same line. Computes a point for each distance following the sub-command.
A negative distance rotates the bearing 180°.
The -9E9 sub-command and the 9E9 sub-command may be used together without ending the original sub-command. Each one supersedes the other. The distances entered following the sub-command produce points on a line or points at 90° to one another, as the sub-command directs. The last bearing is directed toward the last point set.
Note: The 7E7 and 8E8 sub-commands may be used in conjunction with this sub-command.
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Distance
| 40
| Length of the line from the known point to the point being computed by the 1 command. The retained bearing is directed toward the last point set.
If a negative number is entered following the -9E9 sub-command, the point is set in the opposite direction and the bearing is rotated accordingly.
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{[Distance] .. }
| 20.2
| Repeating feature of this sub-command within the 1 command. Numbers separated by commas or spaces following the command are read as distances until the end sub-command 0 or ES is encountered.
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End
Sub-Command
| 0
| End of sub-command is a 0 (zero) or ES.
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Example Command File
$ Example data file for the -9E9 (RLB) command
$ set initial point
0 20 1000 1000 ;
$ set points 22 and 23 with the -9E9 command
1 21 20 -1 85 30 6 75.16
-9E9 40
20.2
0 ;
$ define feature code
15.1 PL PropLine 7 1 1;
$ turn plot on
91 ;
$ activate the features
15 pl ;
100 Inverse the results;
7 1 20 -23 ;
Help for this command was last updated: 04/03/2000 3:00:00 PM
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