Angular units
HCL® OneDB® spatial data types support many angular units.
The following table shows a representative sample of the
angular units of measure supported by the HCL
OneDB spatial
data types. For a complete list of supported angular units of measure,
see the file ONEDB_HOME/extend/spatial.version/include/pedef.h.
| Factory ID | Description | OGC well-known text string |
|---|---|---|
| 9101 | Radian | UNIT["Radian",1] |
| 9102 | Degree | UNIT["Degree",0.0174532925199433] |
| 9103 | Arc-minute | UNIT["Minute",0.0002908882086657216] |
| 9104 | Arc-second | UNIT["Second",4.84813681109536E-06] |
| 9105 | Grad (angle subtended by 1/400 circle) | UNIT["Grad",0.01570796326794897] |
| 9106 | Gon (angle subtended by 1/400 circle) | UNIT["Gon",0.01570796326794897] |
| 9109 | Microradian (1e-6 radian) | UNIT["Microradian",1E-06] |
| 9112 | Centesimal minute (1/100th Gon (Grad)) | UNIT["Minute_Centesimal",0.0001570796326794897] |
| 9113 | Centesimal second(1/10000th Gon (Grad)) | UNIT["Second_Centesimal",1.570796326794897E-06] |
| 9114 | Mil (angle subtended by 1/6400 circle) | UNIT["Mil_6400",0.0009817477042468104] |