[GRASS-user] how to differentiate point symbols?

GRASS GRASS user
1

Hell everyone,

I am struggling to display point symbols now. In the dbf file, there
are three columns. First two columns contain the x and y coordinates.
Third column contains four different values indicating some classes
(10=private, 20=federal, 30=local government and 40=no information).
I would like to differentiate the color of the symbols or/and the
shape of the symbols depending on the values in third column. If you
know a command how to deal with such case, please advice me.

Thank you very much for your attention and help.

Rei Hayashi
rei.grass@gmail.com

2

HELLO everyone,

I am struggling to display point symbols now. In the dbf file, there
are three columns. First two columns contain the x and y coordinates.
Third column contains four different values indicating some classes

(10=private, 20=federal, 30=local government and 40=no information). I would like to differentiate the color of the symbols or/and the shape of the symbols depending on the values in third column. If you know a command how to deal with such case, please advice me.

Thank you very much for your attention and help.

Rei Hayashi
rei.grass@gmail.com

3

You could use d.vect.thematic [1]. You can load multiple times the
same vector to render different columns.

[1] http://grass.itc.it/grass63/manuals/html63_user/d.vect.thematic.html

2008/7/18 Rei Hayashi <rei.grass@gmail.com>:

HELLO everyone,

I am struggling to display point symbols now. In the dbf file, there
are three columns. First two columns contain the x and y coordinates.
Third column contains four different values indicating some classes

(10=private, 20=federal, 30=local government and 40=no information). I would like to differentiate the color of the symbols or/and the shape of the symbols depending on the values in third column. If you know a command how to deal with such case, please advice me.

Thank you very much for your attention and help.

Rei Hayashi
rei.grass@gmail.com
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

4

Rei Hayashi wrote:

I am struggling to display point symbols now. In the dbf file, there
are three columns. First two columns contain the x and y
coordinates.
Third column contains four different values indicating some classes
(10=private, 20=federal, 30=local government and 40=no information).
I would like to differentiate the color of the symbols or/and the
shape of the symbols depending on the values in third
column. If you know a command how to deal with such case,
please advice me.

d.vect where="..."

Hamish