manual:config:visualisation:graphs:simple
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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manual:config:visualisation:graphs:simple [2014/09/26 11:32] sasha Links adapted because of a move operation |
manual:config:visualisation:graphs:simple [2018/10/30 09:23] (current) martins-v for trapper items, a straight line is drawn leading up to the first collected value and from the last collected value to the end of graph |
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| == Generating from history/trends == | == Generating from history/trends == | ||
| - | Graphs can be drawn based on either item [[:2.0/manual/config/items/history_and_trends|history or trends]]. A grey caption at the bottom right of a graph indicates where the data come from. | + | Graphs can be drawn based on either item [[:manual:config:items:history_and_trends|history or trends]]. A grey caption at the bottom right of a graph indicates where the data come from. |
| Several factors influence whether history of trends is used: | Several factors influence whether history of trends is used: | ||
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| * if trends are disabled, item history is used for graph building - if available for that period. This is supported starting with Zabbix 2.2.1 (before, disabled trends would mean an empty graph for the period even if item history was available). | * if trends are disabled, item history is used for graph building - if available for that period. This is supported starting with Zabbix 2.2.1 (before, disabled trends would mean an empty graph for the period even if item history was available). | ||
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| + | == Absence of data == | ||
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| + | For items with a regular update interval, nothing is displayed in the graph if item data are not collected. | ||
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| + | However, for trapper items, a straight line is drawn leading up to the first collected value and from the last collected value to the end of graph; the line is on the level of the first/last value respectively. | ||
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| == Switching to raw values == | == Switching to raw values == | ||