DESCRIPTION

v.to.db load values from vector to database.

NOTES

The units 'miles', 'feet', 'meters' and 'kilometers' are square for option=area.

EXAMPLES

Updating attribute tables

Note: Uploading of the attributes of a vector map to the DBMS has to be done column-wise. The column must be present in the table (use db.execute to add a new column if needed).

Upload category numbers to attribute table (used for new map):
v.to.db map=soils type=area option=cat

Upload area sizes of each polygon to attribute table:
v.to.db map=soils type=area option=area col1=area_size unit=h

Upload x and y coordinates from vector geometry to attribute table:
v.to.db map=pointsmap option=coor col1=x col2=y

Printing reports

Report all area sizes of a map:
v.to.db -p soils option=area type=boundary units=h Report all area sizes of a map, sorted by category number:
v.to.db -p soils option=area type=boundary units=h | sort -n

Report all area sizes of a map:
v.to.db -p roads option=length type=line units=k

Report number of featurs for each category in map:
v.to.db -p roads option=count type=line

AUTHOR

Radim Blazek

Last changed: $Date: 2004/05/26 11:38:17 $