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2.2.5.1 Computing Dynamic Elevations

Elevations of Tracks are computed in following steps. The colors listed in each step are used as the background color of the Track Elevation Markers (if they are enabled (Section 2.10.3)).

The elevation computation is performed incrementally every time the layout is changed to keep all elevations in sync. The performance of the computation is affected by the placement of the Defined Elevation endpoints and the number of Paths between them. Place the Defined Elevations at points where tracks begin to branch (such as the throat of a yard or at the ends of a siding). Also, use Defined Elevations or Ignore Elevations to break the layout into areas so recomputation has fewer tracks and Paths to deal with.