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Level

Spot levels (existing or proposed) are represented as PL blocks (or blocks with the same attribute structure). Horizontal or plan location of the level is the insertion point of the block and the level value is the level attribute.

 

Nominal Scale

The "real" scale is always 1:1 and the units are metres. A "Nominal Scale:" prompt appears in many dialogues and sometimes at the command line prompt to set the attribute height to be appropriate for the intended plotting scale.

 

Typical use

Default settings for initial use of a new KTF installation are intended to reflect typical or "normal day to day" use.

These default settings appear in illustrations of dialogues in this document and the help system to be a guide for getting the new user started.

 

Contour

2D Polyline on a suitable layer with appropriate elevation (may represent existing or proposed).

 

Section file

Used to store a single section or a number of cross sections. Section files are created from 3D drawing entities, Ground Models and some Design menu items.

 

Section

A section represented in the drawing (drawn from a .sek section file). Creating a section by different methods and writing to .sek file is one operation. Drawing a section or cross sections is a separate operation that will often take place in a different drawing. May be thought of as a long section for typical use.

 

Cross section

One of a number of cross sections represented in the drawing and drawn from a .sek section file.

 

Section specific terminology :-

 

Vertical marker line

Vertical lines are drawn from the section Polyline to the bottom of the lower box appropriate for the data.

 

Section Polyline

The 2D Polyline representing the actual section or profile.

   

 

 

Box

A grouping of 1, 2, 3 or 4 lines. There is no limit to the number of boxes in a section type.

 

 

Line

The location within a box for existing or proposed levels and chainages etc. E.g. "Exist LEVEL" above.

 

Origin

This may be thought of as the insertion point of the section and is the left hand end of the datum line.

 

Datum Line

Horizontal line at specified datum level (e.g. 2 or 3 metres below the lowest level in the section). Includes essential section information as extended entity data.