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| GeoCommunity Mailing List |
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| Subject: | [gislist] RE: [ESRI-L] GIS Survey Question |
| Date: |
01/27/2004 01:55:01 PM |
| From: |
A'Hearn, William |
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I don't mean to rain on your project, but why isn't this being handled by a
surveyor?
Bill A'Hearn, LSIT
GIS Analyst/Mapping Specialist
City of Glendale, CA
"A map is the greatest of all epic poems. Its lines and colors show the
realization of great dreams."
Gilbert H. Grosvenor, Editor of National Geographic (1903- 1954)
-----Original Message-----
From: Layne Seely [mailto:LSEELY@cpyi.com]
Sent: Monday, January 26, 2004 9:41 AM
To: ESRI-L@ESRI.COM
Subject: [ESRI-L] GIS Survey Question
hey Group:
I have been tasked with planning and performing a land survey to generate
contours for a project. We will be using the Leica SR530 to collect point
data to support the creation of 6" contours. The site may have as much as
10' total elevation above sea level (it's near the Yucatan peninsula :))
What I need to know is how closely I need to plan my points to warrant 6"
contours. From what I know of Lidar, you plan 2.5m postings to generate 2'
contours. If my math is correct, I will need to collect a posting every 2'
Is this basically correct?
Mr. Layne Seely
GIS Analyst
CHIANG, PATEL & YERBY, INC.
1820 Regal Row, Suite 200
Dallas, Texas 75235
214.640.1736 (Direct)
214.638.3723 (Fax)
LSeely@cpyi.com
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