Abstract Class Name: Base Level of Detail Data

Superclass - SEDRIS Abstract Base

Subclasses

• Feature Level of Detail Data
• Geometry Level of Detail Data

Definition

The rules and data that govern the replacement of objects based upon a predefined function. The function is typically based upon the distance from the object to the viewer.

Primary Page in DRM Diagram:

• 9

Example

1. A set of polygonal data is produced with low detail for viewing at ranges greater than 3200 meters. The Level of Detail Data specifies this viewing range so that the correct set of Polygons can be selected for the appropriate viewing range.
2. Three Models of a building are created, each with different Polygon counts. The most accurate representation has Level of Detail Data identifying it as useful to a range of one kilometer; the next Model has Level of Detail Data that indicates utility from 1 km to 2 km, etc.

Constraints

• Homogeneous LOD

Composed of (one-way)

• one Level of Detail Data