Linear units
HCL® OneDB® spatial data types support many linear units.
The following table shows a representative sample of the
linear units of measure supported by the HCL
OneDB spatial
data types. For a complete list of supported linear units of measure,
see the file ONEDB_HOME/extend/spatial.version/include/pedef.h.
| Factory ID | Description | OGC well-known text string |
|---|---|---|
| 9001 | International meter | UNIT["Meter",1] |
| 9002 | International foot | UNIT["Foot",0.3048] |
| 9003 | US survey foot | UNIT["Foot_US",0.3048006096012192] |
| 9005 | Clarke's foot | UNIT["Foot_Clarke",0.3047972650] |
| 9014 | Fathom | UNIT["Fathom",1.8288] |
| 9030 | International nautical mile | UNIT["Nautical_Mile",1852] |
| 9031 | German legal meter | UNIT["Meter_German",1.000001359650] |
| 9033 | US survey chain | UNIT["Chain_US",20.11684023368047] |
| 9034 | US survey link | UNIT["Link_US",0.2011684023368047] |
| 9035 | US survey mile | UNIT["Mile_US",1609.347218694438] |
| 9036 | Kilometer | UNIT["Kilometer",1000] |
| 9037 | Yard (Clarke) | UNIT["Yard_Clarke",0.914391795] |
| 9038 | Chain (Clarke) | UNIT["Chain_Clarke",20.11661949] |
| 9039 | Link (Clarke's ratio) | UNIT["Link_Clarke",0.2011661949] |
| 9040 | Yard (Sears) | UNIT["Yard_Sears",0.9143984146160287] |
| 9041 | Sear's foot | UNIT["Foot_Sears",0.3047994715386762] |
| 9042 | Chain (Sears) | UNIT["Chain_Sears",20.11676512155263] |
| 9043 | Link (Sears) | UNIT["Link_Sears",0.2011676512155263] |
| 9050 | Yard (Benoit 1895 A) | UNIT["Yard_Benoit_1895_A",0.9143992] |
| 9051 | Foot (Benoit 1895 A) | UNIT["Foot_Benoit_1895_A",0.3047997333333333] |
| 9052 | Chain (Benoit 1895 A) | UNIT["Chain_Benoit_1895_A",20.1167824] |
| 9053 | Link (Benoit 1895 A) | UNIT["Link_Benoit_1895_A",0.201167824] |
| 9060 | Yard (Benoit 1895 B) | UNIT["Yard_Benoit_1895_B",0.9143992042898124] |
| 9061 | Foot (Benoit 1895 B) | UNIT["Foot_Benoit_1895_B",0.3047997347632708] |
| 9062 | Chain (Benoit 1895 B) | UNIT["Chain_Benoit_1895_B",20.11678249437587] |
| 9063 | Link (Benoit 1895 B) | UNIT["Link_Benoit_1895_B",0.2011678249437587] |
| 9070 | Foot (1865) | UNIT["Foot_1865",0.3048008333333334] |
| 9080 | Indian geodetic foot | UNIT["Foot_Indian",0.3047995102481469] |
| 9081 | Indian foot (1937) | UNIT["Foot_Indian_1937",0.30479841] |
| 9082 | Indian foot (1962) | UNIT["Foot_Indian_1962",0.3047996] |
| 9083 | Indian foot (1975) | UNIT["Foot_Indian_1975",0.3047995] |
| 9084 | Indian yard | UNIT["Yard_Indian",0.9143985307444408] |
| 9085 | Indian yard (1937) | UNIT["Yard_Indian_1937",0.91439523] |
| 9086 | Indian yard (1962) | UNIT["Yard_Indian_1962",0.9143988] |
| 9087 | Indian yard (1975) | UNIT["Yard_Indian_1975",0.9143985] |