On 29/05/12 14:58, Rich Shepard wrote:
On Tue, 29 May 2012, Moritz Lennert wrote:
You have to display the centroids to be able to see labels, i.e.
Moritz,
You lead me to the solution. There is one default choice that must be
maintained (the centroid checkbox on the Selections tab) and one
non-default
that needs to be selected: the the 'Display category number of features' on
the Required tab. I had consistently left the centroids selected for
display, but on the Required tab had checked the 'Display selected
attribute
from attrcol' box rather than the 'Display category number of features'
box.
Because the category numbers column appears on the Labels tab as a choice
for display I interpreted it as an attribute column and missed the
second-from-the-top choice on the Required tab.
Well, actually, it should work both ways, i.e. with the
d.vect census_wake2000 display=shape,attr
type=point,line,boundary,area,face,centroid attrcol=cat
d.vect census_wake2000 display=shape,cat
type=point,line,boundary,area,face,centroid
should give the same result (assuming that all features that have a
category value have a corresponding entry in the cat column of the
attribute table).
Note that in grass7.0 the use of centroids is not necessary anymore.
Moritz
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