Transcript ppt

Data and project conversions
Lecture 10
November 16, 2006
Conversion
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Data conversion is
from one data type or
format to another
Project (or coordinate)
conversion is from one
projection (or
coordinate) to another
Conversion tools
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From raster
To CAD
To coverage
To dBASE
To Geodatabase
To raster
To shapefile
Coverage conversion
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From coverage
To coverage
Projections and
transformations
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Define projection (or coordinate
system)
Feature
Raster
A demo
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A text (or dbf) file
Convert to shapefile or feature class
Define projection (coordinate)
Reproject to USA Contiguous Albers Equal Area Conic
Interpret to two raster file
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DEM
Ozone concentration
Overlay the Ozone with city or population map to see
any relate between ozone and population
……