Shape File

Shape File

Post by amint » Wed, 08 Nov 2000 04:00:00



How are the representation of a shape file?
(Es. Geographic, Universal Transverse Mercator,State Plane
Coordinates,Lambert Conformal Conic..etc)

Does any algorithm exist to translate a shape file  in a cylindrical
coordinates?

 
 
 

Shape File

Post by Ron Natali » Wed, 08 Nov 2000 04:00:00



> How are the representation of a shape file?
> (Es. Geographic, Universal Transverse Mercator,State Plane
> Coordinates,Lambert Conformal Conic..etc)

> Does any algorithm exist to translate a shape file  in a cylindrical
> coordinates?

A shape file has no inherent representation.  It essentially is expressed
in numeric points.  You have to have some additional information (not encoded
in the file) to know if the values are lat/longs, or units of some projection
and what that projection might be.

 
 
 

1. DBF files associated with SHAPE files

Hi,

The Shapefile technical specification says that a ShapeFile can have a
.dbf file associated with it, with the same name prefix as the .shp
file.

I have gone through the .dbf file specification from www.borland.com.
It says that a .dbf file may have a .dbt file( data for memo fields )
associated with it.

The Shapefile technical specification does not say anything about the
.dbt file.  Does this mean that the .dbf files associated with Shape
files cannot have memo fields ?

I would appreciate any help in this regard.  Thanks in advance.

-Regards,
Preetha.

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