[rrd-users] Re: STACK problem with AREA graph
Alex van den Bogaerdt
alex at ergens.op.het.net
Thu May 5 20:40:14 MEST 2005
On Thu, May 05, 2005 at 05:09:04PM +0000, David Lloyd wrote:
> If an AREA is the first, or only thing to be drawn on a graph I get a
> segmentation fault.
> eg with a LINE1 or LINE2 graph STACK works ok:
> $ rrdtool graph line.png -s -6hour DEF:ccf=ccf.rrd:tally:AVERAGE
I'm not sure if this is supposed to work or if this is just
The docs still say:
" When stacking, an element is not placed above the X-axis but rather on
top of the previous element. There must be something to stack upon.
> I'm assuming you can use STACK on the first thing to be drawn, and it will
> stack the data over the x-axis, so that you don't have to make a special
> case for the first area.
As a quick workaround: draw a line at zero. You say stacking a line
works, thus you could start by doing this. The next element, even if
it is an AREA, will be stacked on this line. "LINE1:0" will already do.
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