Oriented Bounding Box (OBB)
December 17, 2019 ยท View on GitHub
Definition of an oriented bounding box.
Related:
cmn::3DNodeIndexDocument, cmn::nodeReference
Properties
| Property | Type | Description |
|---|---|---|
| center | number[3] | The center point of the oriented bounding box. For a global scene, such as the XY coordinate system in WGS1984, the center is specified in latitude/longitude in decimal degrees, elevation (Z) in meters. |
| halfSize | number[3] | Half size of the oriented bounding box in units of the CRS. For a global scene, such as the XY coordinate system in WGS1984, the center is specified in latitude/longitude in decimal degrees, elevation (Z) in meters. |
| quaternion | number[4] | Orientation of the oriented bounding box as a 4-component quaternion. For a global scene, the quaternion is in an Earth-Centric-Earth-Fixed (ECEF) Cartesian space. ( Z+ : North, Y+ : East, X+: lon=lat=0.0). Note: A quaternion is a four-element vector that can be used to encode any rotation in a 3D coordinate system. The quaternion components are in the order x, y, z, w. |
Note: properties in bold are required
Examples
Example: Global scene (WSG84) oriented-bounding box
{
"center": [
-105.01482,
39.747244,
1596.040551
],
"halfSize": [
29.421873,
29.539055,
22.082193
],
"quaternion": [
0.420972,
-0.055513,
-0.118217,
0.897622
]
}