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westend392 (Civil/Environme)
6 Mar 08 13:20
Hi Everyone,
Is there a quick way (or software that I can use) of displaying the coordinate system of particular aerial image file? Also, if I have aerial image that is setup in, say, UTM coordinate system, is it possible to convert it so it is refereced in state plane coordinate system? Is this an easy process?
Thanks in advance.
RWF7437 (Civil/Environme)
6 Mar 08 17:29
I'm not sure I understand yout question but perhaps some of the following information may help.
First, I gather that you have an electronic file of an aerial photo. if it is in .jpg, tiff, .gif or any other commonly used graphic file format you may find the inexpensive program , OziExplorer useful. You can import your photo into the program and then scale it to whatever scale would be convenient for you, provided you know the coordinates of at least three points. 字串6
http://www.oziexplorer.com/
You can get coordinates ( Lat and Lon ) in Without knowing what State you are in I can't be more specific.
There may be other ways to accomplish what you are trying to do but those possibly require expensive GIS programs and knowledge of how to use them.
good luck
tsgrue (Civil/Environme)
6 Mar 08 18:37
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I suggest GlobalMapper
http://www.globalmapper.com
.
tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
tsgrue (Civil/Environme)
6 Mar 08 18:40
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You might also try...
MapWindow (http://www.mapwindow.org)
SAGA (http://www.saga-gis.uni-goettingen.de/html/index.php) 字串3
ILWIS (http://52north.org)
I think each has georeferencing capabilities (may require add-on/extension) and each is completely free.
.
tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
msucog (Civil/Environme)
6 Mar 08 19:27
you can uce corpscon to convert points b/t utm and state plane. could always import pic on to autocad then add gridlines. it works well with handheld gps since you can save point data to text, then manipulate file in excel, convert with corpscon, manipulate again, then import in to cad with script file.
drkgray (Civil/Environme)
7 Mar 08 11:56
Just a friendly suggestion: Check your state's Land Surveying Board's regulations before you interpolate your own LS data from an aerial. Some states frown on the practice & get VERY defensive regarding "areas of responsibility". :)
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jdonville (Geotechnical)
8 Mar 08 20:38
I have had good experiences with Global Mapper. You will need to get the paid version in order to save your georef image into another coordinate system.
Jeff
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