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   v.reclass allows user to create a new vector map based on the
   reclassification of an existing vector map.
   Rules file may contain on each row either pair:
   keyword value
   (separated by space) or comment beginning by #(hash). Definition of new
   category begins with keyword cat followed by new category value.
   Keyword where specifies SQL where condition.

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v.reclass input=land output=land_u type=boundary rules=land.rcl

   the rules file contains :

# land reclass file
cat 1
where use = 'E13' and owner = 'Jara Cimrman'
cat 2
where use = 'E14'

   Produces a new vector area map land_u containing boundaries from land
   with area category values selected from database by SQL select
   statement:
   select id from tland where use = 'E13' and owner = 'Jara Cimrman'
   changed to category 1;
   values selected from database by SQL select statement:
   select id from tland where use = 'E14' changed to category 2.

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   No table is created for reclassed layer if column option is used and
   column type is integer (there is nothing which could be written to the
   table).

   For dissolving common boundaries, see v.extract.

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   No table is created for reclassed layer if rules option is used.

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   [1]v.dissolve, [2]v.extract, [3]v.reclass, [4]GRASS SQL interface

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   R.L. Glenn, USDA, SCS, NHQ-CGIS
   from v.reclass to v.db.reclass and later to v.reclass in 5.7 rewritten
   by Radim Blazek

   Last changed: $Date: 2007-05-18 03:30:19 -0500 (ÐÑ, 18 май 2007) $

ÐвÑÐ¾Ñ Ð¿ÐµÑевода

References

   1. file://localhost/root/tmp/2/fin/v.dissolve.html
   2. file://localhost/root/tmp/2/fin/v.extract.html
   3. file://localhost/root/tmp/2/fin/v.reclass.html
   4. file://localhost/root/tmp/2/fin/sql.html