ISOM front page  Map style index  Text index  Land forms index  Rock and boulders index  Water and marsh index  Vegetation index  Man-made features index  Overprinting and technical symbols index  OCAD symbols index  email to author

Small tower 536

See Also...High tower 535  538   ISOM Index  Man-made features index    previous   next

This page contains content from ISOM2000   This page contains content from Ashby Mapping    revision 01/00

Specifications

536 Small tower

An obvious shooting platform or seat, or small tower. Location is at the centre of gravity of the symbol.

Colour: black.

Line width 0.16mm

This symbol is oriented to north.

ISOM 1990 Definition

An obvious shooting platform or seat, or small tower (or a trig. point in some countries). Location is at the centre of gravity of the symbol.
Line width was 0.175mm
ISOM number changed from 538 to 536.

OCAD Methods

Defined as point symbol 536.0, can be drawn with any drawing tool.

This is a rotatable symbol, it can be rotated with the direction tool and will rotate with the map if the “include symbols” box is checked when the map is turned.

Care when drawing is needed, a click will place the symbol; a click with drag will rotate the symbol in the direction of the drag. To correct this, redraw carefully. Don Scarrott has written a utility that straightens all rotated symbols.

Pictorial Descriptions

- BOF Rules, Appendix One

Tower: a tall wooden or brick structure, usually built for forest observation.

Shooting platform: a structure attached to a tree where a marksman or observer can sit

Click to go to the top of this page


International Specification for Orienteering Maps produced by the International Orienteering Federation
OCAD produced by Hans Steinegger Software. © 1988-1999 Hans Steinegger. ® OCAD is a registered trademark of Hans Steinegger
This document has been written and coded by Peter Hornsby of Ashby Mapping
Apologies for any mistakes and errors; please inform details of any problems, thanks.
Produced for the Ashby Mapping internet site on 20 November 1997 and 1 December 1999  ©1997-2000 Ashby Mapping
Revised 28 December 1999, 23 March 2000