Types of graphs

Graphs appearing in Fathom database views belong to one of three families: current, meter, or historical.

Current

Graphs that belong to the current family include: pie, bar, and column. Current graphs display the most current data samples.

Meter

Graphs that belong to the meter family include: full, half left, half right, half bottom, and half top. Meter graphs display the most current datum sample.

Figure 2–2 shows a full meter graph.

Figure 2–2: Full meter graph

The yellow background indicates the high water mark, while the red arrow indicates the current value. The black area of the graph indicates that a rule has defined a threshold for the data. The meter graph in Figure 2–2 shows that the resource has broken the rule's threshold value.

Historical

Graphs that belong to the historical family include: line, hi/low, column, area, stacked column, and stacked area. Historical graphs show values over a period of time.

Hi/low graphs present the start, high, low, and end values of your data. See Figure 2–3 for a sample hi/low graph.

Figure 2–3: Hi/low graph

The highest vertical point on a hi/low graph indicates the high water mark (HWM). The lowest vertical point indicates the low water mark (LWM).

Historical graphs use dashed lines to indicate thresholds, as shown in Figure 2–4.

Figure 2–4: Graph with threshold indicated


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