Line Styles
There are four line styles available:
Multiple styles can be used in the same chart or combined with other operations.
Line¶
The default style is line.
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:line
&s=e-1w
Area¶
Area will fill the space between the line and 0 on the Y-axis. The alpha setting is just used to help visualize the overlap.
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:area,
40,:alpha
&s=e-1w
Similarly for negative values:
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:neg,
:area,
40,:alpha
&s=e-1w
Stack¶
Stack is similar to area, but will stack the filled areas on top of each other.
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:stack
&s=e-1w
Similarly for negative values:
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:neg,
:stack
&s=e-1w
Stacked Percentage¶
The stack style can be combined with the :pct operator to get a stacked percentage chart for a group by:
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:pct,
:stack
&s=e-1w
Heatmap¶
Since 1.8.
Plotting many time series with a heat map can be useful for identifying concentrations of measurements where individual lines may produce too much noise.
See Heatmap for more details.
/api/v1/graph?
e=2012-01-01T00:00
&q=
name,sps,:eq,
(,nf.cluster,),:by,
:heatmap
Vertical Span¶
The vertical span style converts non-zero to spans. This is often used to highlight some portion of another line.
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
50e3,:gt,
:vspan
&s=e-1w
Combinations¶
Line styles can be combined, e.g., to highlight the portion of a line that is above a threshold:
/api/v1/graph?
e=2012-01-01T00:00
&no_legend=1
&q=
name,sps,:eq,
:dup,
5003,:gt,
:vspan,
40,:alpha,
50e3
&s=e-1w
Layering¶
The z-order is based on the order of the expression on the stack.
/api/v1/graph?
e=2015-03-10T13:13
&no_legend=1
&q=
t,name,sps,:eq,
:sum,
:set,
t,:get,
:stack,
t,:get,
1.1,:mul,
6h,:offset,
t,:get,
4,:div,
:stack
&s=e-2d
