Glossary

Table of Contents

• light-weight
• Field Concept
• Section
• Fragment

light-weight

An object with neglible overhead when copying.

Field Concept

The terminology of a Field follows the mathematical notation of a field as a function associating a numerical quantity to each point in a region of space and time. Typical examples are scalar and vector fields for physical quantities, but also computational quantities such as colors or time stamps form a field if these quantities are associated with a point in space and time.

In the context of the F5 data model, a Field

• is constructed from a number of fragments (next hierarchy level), see Fragment
• constructs a Representation (previous hierarchy level)

Section

A section is a mathematical term relating to the topological concept of a fiber bundle where specific elements of a fiber space are selected, see also https://en.wikipedia.org/wiki/Section_(fiber_bundle) . A section of a vector bundle thus constitutes a vector field; likewise, a 1-form on a manifold (the base space) is a section of the cotangent bundle.

In the context of the F5 data model, a section

• is the pair of a coordinate field and another Field , equivalent to the Positions of the Vertices together with another, arbitrary Field

Fragment

A Fragment describes a contiguous subset of a Field.

In the context of the F5 data model a Fragment:

• is constructed from a CreativeArrayBase, a Creator for MemBase objects which derive to MemArray instances or procedural arrays
• constructs a Field (previous hierarchy level) Field Concept