how to get more y values in the graph

[rbl]

Hi,

Is it posible to get more values in the y-as.
See picture. only get one value. (1000)
---------
/usr/local/rrdtool-1.3.8/bin/rrdtool graph - \
--imgformat=PNG \
--start=-604800 \
--end=-1800 \
--title="Luchtdruk" \
--base=1000 \
--height=150 \
--width=500 \
--alt-autoscale \
--upper-limit=1010 \
--lower-limit=990 \
--units-exponent=0 \
--vertical-label="Millibar (Hectopascal )" \
--slope-mode \
--font TITLE:12:/var/www/fonts/VeraSe.ttf \
--font AXIS:8:/var/www/fonts/DejaVuLGCSerif.ttf \
--font LEGEND:9:/var/www/fonts/Vera.ttf \
--font UNIT:9:/var/www/fonts/garamond.ttf \
DEF:a="/var/www/shtml/cacti/rra/weergegevens_193.rrd":barometer:AVERAGE \
LINE2:a#00FF00FF:"" \
GPRINTLAST:"Huidig\:%8.1lf" \
GPRINTMIN:"Minimum\:%8.1lf" \
GPRINTMAX:"Maximum\:%8.1lf\n" \
VRULE:1261522800#7EE600FF:"" \
HRULE:1000#AAABA1FF:""
----------------
Martijn

[gandalf]

Upcoming 088 will support all options available for manipulating y-axis. Currently, you may want to play with "alt-autoscale" and "rigid" settings
R