General Information:
What to ask for when getting data
Type of file:
- ArcView Shape File (SHP) Make sure you get all the parts
- ArcInfo transport file (E00)
- CAD (DXF)
- Personal Geodatabase
Make sure you get the projection, map units, datum,
and appropriate scale information. Most of our data uses decimal
degrees with NAD 27 or NAD 83. UTM projections
with map units in meters for zone 14 are suitable for MB but generally
we would rather project from decimal degrees. In addition, you will
also need to make sure to get the original source of the data. This
information can subsequently be created and/or stored in ArcGIS
metadata through ArcCatalog.
If you get an unknown shape, coverage, or E00 file look for the
.prj file or prj.adf file. These files can be read with a text editor
such as Notepad and will give you an idea of the necessary projection
information.
In some cases files will be posted as MIF (Map Info Transport files).
These can be translated into ESRI formatted files if necessary but
look for alternatives if possible. We do not have converters for
other formats.
Presenting MB Data
Generally use UTM zone 14 using NAD 27 or NAD 83/WGS 84 (which
ever is appropriate).
Albers Equal Area with the following criteria can also be used
but this is a custom projection and should not be given projected
to other people.
- Central Meridian – 98.00
- Standard Parallel 1 – 51
- Standard Parallel 2 – 77
- Latitude of Origin – 63
Spheroid
- WGS84 (NAD83) for recent data (e.g. 2001 census)
- Clarke1866 or GRS80 for older data (e.g. 1996 census)
More on Projections
http://www.gis.psu.edu/projection/
http://atlas.nrcan.gc.ca/site/english/learningresources/carto_corner/map_projections.html
Information on Schema files
http://msdn.microsoft.com/en-us/library/ms709353.aspx
Quick and Easy SCHEMA.INI (from: http://www.devx.com/tips/Tip/12566)
To create a SCHEMA.INI file for a text file quickly and easily,
let the ODBC setup and drivers do it for you. Go to the Control
Panel and start ODBC. Click on the Add button and select the Text
driver. Click on the Options button and describe how to arrange
the text file. If your text file has a header record, click on the
Guess button, and the Column Names will be filled out for you. On
the last screen, choose Cancel to avoid setting up the data source.
Check the directory where the text file resides, and you'll find
a new SCHEMA.INI file.
Defaults (Normal.mxt)
The default template (normal.mxt) can be found under the users
profile under Windows.
C:\Documents and Settings\$USER\Application Data\ESRI\ArcMap\Templates
Data Sources
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