Linear Measures and Coordinates
- Last UpdatedJan 26, 2023
- 2 minute read
The environment variables to get imperial units are SB_LINEAR_MEASURE_UNIT and SB_COORDINATE_UNIT.
The format will be as follows 3F516 that means, 3 feet 5 inches and 6 fractions. The environment variable SB_LINEAR_MEASURE_FRACT can be set to 8THS, 16THS or 64THS and determines if the fractions are 8, 16 or 64 parts of an inch. Default is 16THS. It will be used if the environment variable not is set. When the measure or co-ordinate is displayed on list or on drawing the F will be exchanges to and I to. It is highly recommended to have the environment value SB_LINEAR_MEASURE_FRACT to the same as SB_COORDINATE_FRACT.
If the environment variable SB_LINEAR_MEASURE_NOT is set to 2F_LIM measures will be presented as inches and 16-ths if the measure is less than 2 feet. It is also possible to give the environment variable SB_LINEAR_MEASURE_NOT the value 6F_LIM, the system will then present measures less than 6 feet as inches and fractions.
The environment variable SB_LINEAR_MEASURE_SUPP can be set to the values 8THS, 16THS, 64THS and INCH. If the value is 8THS, 16THS or 64THS the fractions are suppressed if the measure is more that 1 inch. If the value is INCH the inch signs are suppressed if the measure is more than 1 foot. The measure is rounded. If the environment variable is set to INCH the value of SB_LINEAR_MEASURE_NOT will be ignored.
The measures will be presented with fractions if the environment variable SB_LINEAR_MEASURE_FRACT is set to 8THS, 16THS or 64THS and if the output field has enough space.
The default outlook of fractions is shown in the table below. An alternative is available by setting the environment variable SB_IMPERIAL_OUTPUT_ALT to 1 (default is 0). The sign representing inch will then be moved last and a dash separates foot from inch. Example 3’02"7/8 will look like 3’-2 2/7" and 1’00"3/16 will look like 1-3/16".
Example of fractions with 16 parts of an inch:
|
Normal presentation: |
With fractions: |
|---|---|
|
1"00 |
1" |
|
1"01 |
1"1/16 |
|
1"02 |
1"1/8 |
|
1"03 |
1"3/16 |
|
1"04 |
1"1/4 |
|
1"05 |
1"5/16 |
|
1"06 |
1"3/8 |
|
1"07 |
1"7/16 |
|
1"08 |
1"1/2 |
|
1"09 |
1"9/16 |
|
1"10 |
1"5/8 |
|
1"11 |
1"11/16 |
|
1"12 |
1"3/4 |
|
1"13 |
1"13/16 |
|
1"14 |
1"7/8 |
|
1"15 |
1"15/16 |
The environment variables SB_COORDINATE_NOT, SB_COORDINATE_SUPP and SB_COORDINATE_FRACT has got the same function as corresponding environment variable for measures.
The output will automatically be changed to feet with decimals if the length of the value is more than the field size.