Maptitude - http://research.umbc.edu/~roswell/maptitude.html
Louis:
>I created a dot density map, and the map did not look correct. The value I
>used is 1 dot = 1,000 but two areas with value less than 1,000 still showing
>with dot?????
The goal is to have the right number of dots. If one area has a value of
1500 and another has a value of 500 you want two dots, not just one. So,
some areas with values of less than 1000 will have dots, while some areas
will have their number of dots adjusted so that overall there will be the
right number of dots.
The alternative of treating each area individually is not wise. The last
time we checked, some of the competition failed badly when we dot-mapped
states with one dot per million people, by not coming close to the right
total number of dots.
Peter
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Peter Van Demark
Director of GIS Products and Training Phone: 617-527-4700
Caliper Corporation Fax: 617-527-5113
1172 Beacon Street E-mail: [EMAIL PROTECTED]
Newton MA 02461-9926 Web site: http://www.caliper.com
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