Dear all

A reader (who is doing an 'A' level project) has asked our advice on the
best way to measure stream/river length on 1:10,560 or 1:10,000 scale maps.
The project is on river sinuosity so the measurements have to be fairly
accurate.

We have suggested a map measurer (the rather old one we had slipped too
much); the cotton/string approach; marking the sections of the river along
the edge of a piece of paper.

None of these was thought to be overly satisfactory.

She has seen adverts for the 'MapWheel' - details at
http://scalex.com/pdf's/MapWheel%20Flyer.pdf Before she spends GBP
20-plus on one I said I would ask if anyone has experience of using one and
might comment (off-list if you prefer) on its accuracy.

Any other suggestions gratefully received. She does not have access to GIS

Thank you

Anne


Anne Taylor
Head of Map Department, Cambridge University Library, West Road, Cambridge
CB3 9DR
Tel: 01223-333041. Fax: 01223-333160. email: aemt2@...
http://www.lib.cam.ac.uk/maps/Home.htm