reprrepresents a local ridge or depression in the TIN surface. When a breakline is specified for a TIN value, triangles in the Patches attribute of the TIN value must be adjusted so that no triangle is crossed by the breakline. The elevation along the breakline takes precedence over the elevation of the original TIN surface for the entire length of the breakline.
During (re)triangulation, Triangle values in the vicinity of each breakline are adjusted so that, if the Triangle value intersects the LineString breakline value, then either:
a) one of the Point values in the ExteriorRing attribute value of the Triangle value is spatially 3D equal to one of the Point values in the Points attribute of the ST_LineString value of the breakline, or
b) two of the Point values in the ExteriorRing attribute of the Triangle value are spatially 3D equal to two consecutive Point values in the Points triangle lies along the breakline.
| Egenskap |
Stereotype |
Beskrivelse |
Type |
Multiplisitet |
| elementType |
|
|
TINElementType
(enumeration)
|
1..1 |
| - randomPoints |
|
|
|
1..1 |
| - groupSpot |
|
|
|
1..1 |
| - boundary |
|
|
|
1..1 |
| - breakline |
|
|
|
1..1 |
| - softBreak |
|
|
|
1..1 |
| - controlContour |
|
|
|
1..1 |
| - brealVoid |
|
|
|
1..1 |
| - drapeVoid |
|
|
|
1..1 |
| - void |
|
|
|
1..1 |
| - hole |
|
|
|
1..1 |
| - stopLine |
|
|
|
1..1 |
| - userDefined |
|
|
|
1..1 |
| elementGeometry |
|
3D |
LineString |
1..1 |
| TINElement |
| elementType |
|
the type of TIN element: 'random points', 'group spot', 'boundary', 'breakline', 'soft break', 'control contour', 'break void', 'drape void', 'void', 'hole', 'stop line', and 'user defined' |
TINElementType
(enumeration)
|
1..1 |
| - randomPoints |
|
|
|
1..1 |
| - groupSpot |
|
|
|
1..1 |
| - boundary |
|
|
|
1..1 |
| - breakline |
|
|
|
1..1 |
| - softBreak |
|
|
|
1..1 |
| - controlContour |
|
|
|
1..1 |
| - brealVoid |
|
|
|
1..1 |
| - drapeVoid |
|
|
|
1..1 |
| - void |
|
|
|
1..1 |
| - hole |
|
|
|
1..1 |
| - stopLine |
|
|
|
1..1 |
| - userDefined |
|
|
|
1..1 |
| elementID |
|
user assignable identifier for the TIN element |
Integer |
1..1 |
| elementTag |
|
user assignable tag for the TIN element. |
CharacterString |
1..1 |
| elementGeometry |
|
geometry of the TIN element |
Geometry |
1..1 |
| Navn |
Type |
Lengde |
Multiplisitet |
|
TINElementType
(enumeration)
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
| - |
|
|
1..1 |
|
Integer |
|
1..1 |
|
CharacterString |
|
1..1 |
|
Geometry |
|
1..1 |
|
TINElementType
|
|
1..1 |
|
LineString |
|
1..1 |
| Name |
Type |
English |
Description |
| elementType |
TINElementType
(enumeration)
|
|
|
| - randomPoints |
|
|
|
| - groupSpot |
|
|
|
| - boundary |
|
|
|
| - breakline |
|
|
|
| - softBreak |
|
|
|
| - controlContour |
|
|
|
| - brealVoid |
|
|
|
| - drapeVoid |
|
|
|
| - void |
|
|
|
| - hole |
|
|
|
| - stopLine |
|
|
|
| - userDefined |
|
|
|
| elementID |
Integer |
|
|
| elementTag |
CharacterString |
|
|
| elementGeometry |
Geometry |
|
|
| elementType |
TINElementType
|
|
|
| elementGeometry |
LineString |
|
|