[GRASS-user] ps.map: add classified vector layers to map?

[wqual]

Hi Moritz,
thank you very much! This helps..

Best regards,
Wolfgang


Am Freitag 19 Januar 2007 pH:37:09 vormittags schrieb Moritz Lennert:
> On 18/01/07 18:12, Wolfgang Qual wrote:
> > Hi list,
> > ps.map does a great job when printing maps without classification. But
> > what is the best way to create a map with - let's say - two vector layers
> > which should be divided into classes? I can only specify cat-values to be
> > displayed or not, but not ranges of values for other columns (normally, I
> > would say, I do not know the cat-values I would like to display, but e.g.
> > the ranges of column1, column2). Is there a good approach for this?
>
> use the 'where' clause
>
> > Experiences with this matter?
>
> If you want to see an example, just run d.vect.thematic and tell it to
> create a ps.map file (if you're using GIS Manager, just fill in the
> 'Name for ps.map instruction files' text field.
>
> Use the 'label' clause to create a label (d.vect.thematic does
> automatically) and the vlegend to display your classes in the legend.
>
> Moritz