py-rrdtool-users

[Py-RRDTool-Users] New line weirdness

[Mark K. <mr...@eu...>]

I have a section of code that calls py-rrdtool as follows.

rrdtool.graph('test.gif','--start=-1days','--title="Demo Graph"',
'DEF:rtt=/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:AVERAGE',
'DEF:max=/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:MAX',
'COMMENT:"\n    maximum     average    current\n"',
'GPRINT:max:MAX:%7.2lf%ss',
'GPRINT:rtt:AVERAGE:%7.2lf%ss',
'GPRINT:rtt:LAST:%7.2lf%ss')

The data was gathered from calls to ping and seems to work fine.

However when I view the image that is created the text under the graph
is wrong.
There the \n from the COMMENT above should be I see A character which
looks like a V above a T
I have attached an example of a graph that shows the problem.

Thank you.
MArk

Re: [Py-RRDTool-Users] New line weirdness

[<al...@al...>]

Le Vendredi 27 Ao=FBt 2004 15:30, Mark Kilmartin a =E9crit :
> I have a section of code that calls py-rrdtool as follows.
>
> rrdtool.graph('test.gif','--start=3D-1days','--title=3D"Demo Graph"',
> 'DEF:rtt=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:AVERAGE',
> 'DEF:max=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:MAX',
> 'COMMENT:"\n    maximum     average    current\n"',
> 'GPRINT:max:MAX:%7.2lf%ss',
> 'GPRINT:rtt:AVERAGE:%7.2lf%ss',
> 'GPRINT:rtt:LAST:%7.2lf%ss')
>
> The data was gathered from calls to ping and seems to work fine.
>
> However when I view the image that is created the text under the graph
> is wrong.
> There the \n from the COMMENT above should be I see A character which
> looks like a V above a T
> I have attached an example of a graph that shows the problem.
>
> Thank you.
> MArk

My first guess without testing (I don't graph from pyhon), is that the \n=
 are=20
interpreted by Python.=20
Try using \\n inside your strings, or using raw strings :
r'COMMENT:"\n    maximum     average    current\n"'
(note the r before the first quote).=20

Hope this helps.

--=20
Allergy

Re: [Py-RRDTool-Users] New line weirdness

[Mark K. <mr...@eu...>]

On Fri, 2004-08-27 at 16:12, al...@al... wrote:
> Le Vendredi 27 Ao=FBt 2004 15:30, Mark Kilmartin a =E9crit :
> > I have a section of code that calls py-rrdtool as follows.
> >
> > rrdtool.graph('test.gif','--start=3D-1days','--title=3D"Demo Graph"',
> > 'DEF:rtt=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:AVERAGE',
> > 'DEF:max=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:MAX',
> > 'COMMENT:"\n    maximum     average    current\n"',
> > 'GPRINT:max:MAX:%7.2lf%ss',
> > 'GPRINT:rtt:AVERAGE:%7.2lf%ss',
> > 'GPRINT:rtt:LAST:%7.2lf%ss')
> >
> > The data was gathered from calls to ping and seems to work fine.
> >
> > However when I view the image that is created the text under the graph
> > is wrong.
> > There the \n from the COMMENT above should be I see A character which
> > looks like a V above a T
> > I have attached an example of a graph that shows the problem.
> >
> > Thank you.
> > MArk
Thanks for the response

> My first guess without testing (I don't graph from pyhon), is that the \n=
 are=20
> interpreted by Python.=20
> Try using \\n inside your strings, or using raw strings :
Tried this and it simply appears as \\n on the graph.

> r'COMMENT:"\n    maximum     average    current\n"'
> (note the r before the first quote).=20
This makes no difference.

MArk
>=20
> Hope this helps.

Re: [Py-RRDTool-Users] New line weirdness

[<hy...@gm...>]

On Fri, 27 Aug 2004 14:30:22 +0100, Mark Kilmartin <mr...@eu...> wrote:
> I have a section of code that calls py-rrdtool as follows.
> 
> rrdtool.graph('test.gif','--start=-1days','--title="Demo Graph"',
> 'DEF:rtt=/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:AVERAGE',
> 'DEF:max=/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:MAX',
> 'COMMENT:"\n    maximum     average    current\n"',
> 'GPRINT:max:MAX:%7.2lf%ss',
> 'GPRINT:rtt:AVERAGE:%7.2lf%ss',
> 'GPRINT:rtt:LAST:%7.2lf%ss')
> 
> The data was gathered from calls to ping and seems to work fine.
> 
> However when I view the image that is created the text under the graph
> is wrong.
> There the \n from the COMMENT above should be I see A character which
> looks like a V above a T
> I have attached an example of a graph that shows the problem.
> 

You can put newline character on the end of comments only. So,

r'COMMENT:\n',
r'COMMENT:    maximum     average    current\n',

may help.


Hye-Shik

Re: [Py-RRDTool-Users] New line weirdness

[Mark K. <mr...@eu...>]

Excellent that worked for me.

Thank you.
MArk

On Fri, 2004-08-27 at 19:22, hy...@gm... wrote:
> On Fri, 27 Aug 2004 14:30:22 +0100, Mark Kilmartin <mr...@eu...>=
 wrote:
> > I have a section of code that calls py-rrdtool as follows.
> >=20
> > rrdtool.graph('test.gif','--start=3D-1days','--title=3D"Demo Graph"',
> > 'DEF:rtt=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:AVERAGE',
> > 'DEF:max=3D/var/log/nagios/rrd/172.17.2.1_PING.rrd:RTT:MAX',
> > 'COMMENT:"\n    maximum     average    current\n"',
> > 'GPRINT:max:MAX:%7.2lf%ss',
> > 'GPRINT:rtt:AVERAGE:%7.2lf%ss',
> > 'GPRINT:rtt:LAST:%7.2lf%ss')
> >=20
> > The data was gathered from calls to ping and seems to work fine.
> >=20
> > However when I view the image that is created the text under the graph
> > is wrong.
> > There the \n from the COMMENT above should be I see A character which
> > looks like a V above a T
> > I have attached an example of a graph that shows the problem.
> >=20
>=20
> You can put newline character on the end of comments only. So,
>=20
> r'COMMENT:\n',
> r'COMMENT:    maximum     average    current\n',
>=20
> may help.
>=20
>=20
> Hye-Shik