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| GeoCommunity Mailing List |
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| Subject: | GISList: Measure/calculate tool |
| Date: |
07/31/2002 03:19:23 PM |
| From: |
Adrian |
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I am looking for a simple method, in AV 3.2, to interactively measure
bearing and distance (by simply pointing or selecting features) within a
view (projected). I have this type of "Echo" function in an extension that I
purchased but I am looking for a free script that performs this and perhaps
other measurement and/or calculation tasks.
Perhaps, it is possible to do in native arcview and I just haven't figured
it out yet? Any advice will be greatly appreciated.
Adrian
----- Original Message -----
From: "HealthMaps" <healthmaps@attbi.com>
To: "Diane True" <dtrue@cerc.cr.usgs.gov>: <gislist@geocomm.com>
Sent: Wednesday, July 24, 2002 12:51 PM
Subject: RE: GISList: Jenk's optimization
> Here are some references
>
> 1. Mak, K. and M.R.C. Coulson, Map-user response to computer-generated
> choropleth maps: Comparative experiments in classification and
> symbolization. Cartography and Geographic Information Systems, 1991.
18(2):
> p. 109-124.
> 2. Lewandowsky, S., et al., Perception of clusters in statistical maps.
> Applied Cognitive Psychology, 1993. 7: p. 533-551.
> 3. Cromley, R.G. and R.D. Mrozinski, The classification of ordinal data
for
> choropleth mapping. The Cartographic Journal, 1999. 36(2): p. 101-109.
> 4. Cromley, R.G., A comparison of optimal classification strategies for
> choroplethic displays of spatially aggregated data. International Journal
of
> Geographical Information Systems, 1996. 10(4): p. 405-424.
> 5. Cromley, E.K. and R.G. Cromley, An analysis of alternative
classification
> schemes for medical atlas mapping. European Journal of Cancer, 1996.
32A(9):
> p. 1551-1559.
>
> Also http://www.dartmouth.edu/~dbkarnes/jenks/jenks.html
>
>
> Richard E Hoskins PhD MPH
> Spatial Epidemiology Unit
> WA State Dept of Health
> 1102 Quince Street
> Olympia, WA 98504-7812
> richard.hoskins@doh.wa.gov
> (360) 534-9891
>
> -----Original Message-----
> From: Diane True [mailto:dtrue@cerc.cr.usgs.gov]
> Sent: Wednesday, July 24, 2002 9:53 AM
> To: gislist@geocomm.com
> Subject: GISList: Jenk's optimization
>
>
> The natural breaks classification method in ArcView uses Jenk's
> optimization. I can't find any documentation on Jenk's optimization.
> Does anyone know of any citations?
>
> thanks,
> dt
>
> --
> C. Diane True
> Missouri Resource Assessment Partnership
> http://www.cerc.usgs.gov/morap/
> (USA voice) 573-441-2794
>
> Vision without action is a daydream.
> Action without vision is a nightmare.
>
> Japanese proverb
>
>
>
>
>
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