physical-dimensions-metadata#

Code

AM.004

Validator

Compatibility

Tags

Summary#

The default prim must have all seven physical dimension attributes: aif:core:height, aif:core:width, aif:core:depth, aif:core:weight, aif:core:overallGeometryDimensions, aif:core:installationClearance, and aif:core:accessibilityRequirement.

Description#

Physical dimension metadata enables simulation runtimes to reason about equipment placement, clearance requirements, and spatial constraints in the data center layout without needing to inspect geometry directly.

Why is it required?#

  • Enables automated space planning and collision detection

  • installationClearance and accessibilityRequirement are needed for maintenance simulation

  • overallGeometryDimensions provides a machine-readable bounding box independent of geometry

Attributes#

Attribute

Type

Unit

Description

aif:core:height

float

mm

Equipment height

aif:core:width

float

mm

Equipment width

aif:core:depth

float

mm

Equipment depth

aif:core:weight

float

kg

Equipment weight

aif:core:overallGeometryDimensions

float3

mm

Bounding box (W×D×H)

aif:core:installationClearance

float

mm

Required installation clearance

aif:core:accessibilityRequirement

float

mm

Required service clearance

Examples#

def Xform "CW375" {
    float aif:core:height = 2000.0
    float aif:core:width = 600.0
    float aif:core:depth = 800.0
    float aif:core:weight = 450.0
    float3 aif:core:overallGeometryDimensions = (600.0, 800.0, 2000.0)
    float aif:core:installationClearance = 600.0
    float aif:core:accessibilityRequirement = 1000.0
}

How to comply#

Set all seven attributes on the default prim of the *Properties.usda sublayer with values from the equipment datasheet. All linear dimensions are in millimeters (mm); weight is in kilograms (kg).

For More Information#