global-ellipsoid

schema/objects/global-ellipsoid/1.2.0/global-ellipsoid.schema.json

The global-ellipsoid object captures the parameters of an ellipsoid. Such an object is typically used to represent the anisotropy or the main direction of continuity of spatial geological properties such as mineral grades, petrophysical properties, or lithology.

An ellipsoid is defined by three lengths for the major, semi-major, and minor axes, rotated in space as defined by the rotation.

The rotation in 3D space is described by three angles (azimuth, dip, and pitch), all rotating clockwise about the Z, then X, and finally Z axes. All angles must be positive values, specified in degrees, within the bounds defined for each rotation. 0 degrees in the xy plane (dip azimuth) is 90 degrees East of North.

This object is related to the variogram object as both can be used to describe anisotropy.

Properties

global-ellipsoid (v1.2.0)

Global ellipsoid.

Property	Type	Description	Flags
name	String	Name of the object.	⬆️ ✅
uuid	base-object-properties	Identifier of the object.	⬆️ ✅
description	String	Optional field for adding additional description to uniquely identify this object.	⬆️
extensions	Object	Extended properties that may be associated to the object, but not specified in the schema	⬆️
tags	Object	Key-value pairs of user-defined metadata	⬆️
lineage	lineage	Information about the history of the object	⬆️
bounding_box	bounding-box	Bounding box of the spatial data.	⬆️ ✅
coordinate_reference_system	crs	Coordinate system of the spatial data	⬆️ ✅
ellipsoid_ranges	ellipsoid	An ellipsoid as defined by three lengths, for the major, semi-major and minor axes rotated in space as defined by the rotation.	⬆️ ✅
rotation	rotation	Rotation of the ellipsoid	⬆️ ✅
schema	String		✅
domain	String	The domain the ellipsoid is modelled for	✅
attribute	String	The attribute the ellipsoid is modelled for	✅

Legend

Flag	Description
⬆️	Inherited property
✅	Required property