[Aztlan] Correction

[Elaine Schele]

As Sid Hollander just pointed out to me it would have been better to
have used linear measurements instead of using area measurements to
figure out scale.

I should re-phrase:

For instance if you know that a building is 100 meters long and
measures 10 cm on the map, then the map scale is 10/100 or reducing it
down, 1 cm = 10. This means that one unit of measurement of anything
(cm, foot, etc.) on the map is equal to 100 of the same
unit on the ground.  In other words, your building ratio can be
applied to the entire map.

Math and numbers are not one of my strenghts

Elaine
-- 
http://gispalenque.blogspot.com/
http://volunteermayameetings.blogspot.com/