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| GeoCommunity Mailing List |
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| Subject: | Re: [gislist] Opening a raster tile in ArcGIS |
| Date: |
12/20/2006 04:35:00 PM |
| From: |
David T. Hughes |
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I use TIFF files with World files quite a bit. The trick is BEFORE you add
it to the map, you have to use ArcCatalog. Be sure the TIF has a TFW that
specifies the top left corner in projected coordinates and all that, then
RIGHT-click on the file in ArcCatalog and go to the Properties dialog.
There you will see a line that says "Projection" and it probably says
"Undefined". Click on that box and tell it what projection the raster is
in. This is NOT a way to project a raster -- merely a way to establish the
projection that it already has so that ArcGIS can know about it and work
with it. Pick the wrong projection (say, in the US tell it it's NAD83 when
in fact it's NAD27) and it will come out in the wrong place.
Dave Hughes
-----Original Message-----
From: gislist-bounces@lists.geocomm.com
[mailto:gislist-bounces@lists.geocomm.com] On Behalf Of Tripp Corbin
Sent: Wednesday, December 20, 2006 8:20 AM
To: Quan, Sheila: gislist@lists.geocomm.com
Subject: Re: [gislist] Opening a raster tile in ArcGIS
I am not familiar with an OS raster tile but I am assuming since you said it
had a tfw file that it is just a tif file. If this is the case you would add
it like any other layer. To do that:
First select the add layer button. It is the one that looks like yellow
sheets of paper with a black "+" on it.
Second navigate to the file and click on it.
Lastly click on the Add button
I hope this helps.
Tripp Corbin, MCP, CFM, GISP
Associate Vice President, GIS/Mapping
ESRI Authorized Instructor
Keck & Wood, Inc.
www.keckwood.com
(678) 417-4013
(678) 417-8785 fax
Keck & Wood, Inc offers instructor led and virtual training for ESRI's
ArcGIS & ArcView software.
Please visit www.keckwood.com for more information including a schedule of
upcoming classes.
-----Original Message-----
From: gislist-bounces@lists.geocomm.com
[mailto:gislist-bounces@lists.geocomm.com] On Behalf Of Quan, Sheila
Sent: Wednesday, December 20, 2006 9:15 AM
To: gislist@lists.geocomm.com
Subject: Re: [gislist] Opening a raster tile in ArcGIS
Hi everyone
I am a newbie to ArcGIS. I have an OS 1:10,000 raster tile and its
corresponding tfw file. Would someone be able to give me step by step
instructions on what I need to do to get the file into ArcGIS?
Many thanks
Sheila Quan
Senior GIS Consultant
Steer Davies Gleave
28-32 Upper Ground, London SE1 9PD
d. +44 (0)20 7910 5509
t. +44 (0)20 7919 8500
f. +44 (0)20 7827 9850
e. sheila.quan@sdgworld.net
w. www.steerdaviesgleave.com
This message is sent in confidence for the addressee only. It may contain
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