Table 6.254 — DRM_Spatial_Resolution_LOD_Data

Property

Description

Class
  • <DRM Spatial Resolution LOD Data>

Superclass

Subclass
  • None.

Definition

An instance of this DRM class specifies the spatial resolution of the associated data, which governs the switching of objects by a spatial-resolution-based <DRM LOD Related Geometry> or <DRM LOD Related Features> instance.

The spatial_resolution field specifies the spatial resolution of the associated data, and shall be a positive value.

The unit field specifies how the spatial resolution value is measured.

Clarifications

None.

Class diagram

Figure 6.302 — DRM_Spatial_Resolution_LOD_Data

Inherited field elements

Field name

Range

Field data type

None

    

Field elements

Field name

Range

Field data type

spatial_resolution

≥ 0,0

Long_Float

unit

 

Spatial_Index_Spacing_Unit

Associated to (one-way) (inherited)
  • None.

Associated to (one-way)
  • None.

Associated by (one-way) (inherited)
  • None.

Associated by (one-way)
  • None.

Associated with (two-way) (inherited)
  • None.

Associated with (two-way)
  • None.

Composed of (two-way) (inherited)
  • None.

Composed of (two-way)
  • None.

Composed of (two-way metadata) (inherited)
  • None.

Composed of (two-way metadata)
  • None.

Component of (two-way) (inherited)

Component of (two-way)
  • None.

Constraints

Example(s)

  • DTED is produced at a number of standard spatial resolutions such as 30 arc seconds, 3 arc seconds, 1 arc second, and 0.3 arc second. Although the spatial resolution of the longitudinal axis varies with latitude, the spatial resolution of the latitudinal axis is fixed and equals that of the longitudinal axis at the equator.

  • Atmospheric data sets are often produced in an augmented projection-based SRF, such as the Lambert Conformal Conic Augmented 3D SRF, at a number of standard spatial resolutions such as 81 kilometres, 27 kilometres, and 9 kilometres.