★ Loading the external file that you wish to join to the GIS attribute file.
★ Selecting the external file and the GIS attribute file that you wish to join.
★ Selecting the field (containing the key identifier) in each file, and when joined.
★ Making sure that the join was successful.
What is Comma delimited in GIS Date?
Repeated generalization will make the boundary of a polygon more precise.
How Sorting records in GIS Date?
A pseudonode is a node, which can be removed from a vector dataset without affecting the topology.
What is Spacequote delimited ASCII?
A sliver polygon may be the result of the same line on a map being digitized twice.
RINEX is the abbreviation for Remote Information Exchange format.
DXF and NTF are examples of vector transfer formats.
A cheap flatbed scanner could have an accuracy of 50 - 200 dpi.
An experienced user should be able to digitize data with accuracy equal to the width of the line they are digitizing.
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