A Borehole Collar is a feature corresponding to the start point of a borehole which are often plotted on a map.
If a text descripiton of the location is available, it should be placed in the gml:description for that feature. If no GM_Point is available, an OGC nil value (eg; <a href="http://www.opengis.net/def/nil/OGC/0/inapplicable"><font color="#0000ff"><u>http://www.opengis.net/def/nil/OGC/0/unknown)</u></font></a>
should be used.
Implementers delivering 3-D collar locations should provide and elevation to improve interoperability.
| Egenskap |
Stereotype |
Beskrivelse |
Type |
Multiplisitet |
| location |
|
The location of the BoreholeCollar |
GM_Point |
1..1 |
| elevation |
|
Compromise approach to supply elevation explictly for location; this is to allow for software that cannot process 3-D GM_Point. Use null if elevation is unknown. Direct position shall have a dimension of 1, and CRS will be a "vertical" CRS (e.g. EPSG CRSs in the range 5600-5799). |
DirectPosition |
1..1 |
| Navn |
Type |
Lengde |
Multiplisitet |
|
GM_Point |
|
1..1 |
|
DirectPosition |
|
1..1 |
