5.10 Graphs

The video tutorial Color rules, Bookmarks and Graphs on Youtube will explain how to use color rules, bookmarks and graphs.

The analyze function graph supports the visualization of logged information. Since graphs belong to the analyze functions of Ascolog Insight and thus have nodes in the Functions tree. The application provides four graph windows. A graph window can display several different graphs.

Since a graph is an analyze function the usual ways for creating analyze functions can be applied. How to create analyze functions is described in How to create Analyze Functions and Filter Expressions.

By setting a filter expression it is possible to configure what should be displayed by a graph. Fixed samples are also graphs and this is indicated by the graph icon (see figure Graph categories in the Functions tree):

Graph categories in the Functions tree
Graph categories in the Functions tree

In the Graph window the currently selected log record of the Log window is marked with a thick vertical red line. The “cursor” is a thin dashed vertical red line. You can only select log records in the Graph window which are not filtered out in the Log window. In the options you can configure that the records which are displayed in the Log window will be marked in the graph with a black frame as shown in the figure Record frame. The name of the option is ShowDisplayedRecordFrame and is located in the Display category.

Record frame

The x-axis of a graph in Ascolog Insight always displays timestamps. These timestamps must follow the ISO standard, i.e. they must have the format:

YYYY-MM-DD hh:mm:ss,mmm

(Y=Year, M=Month, D=Day, h=hour, m=minute, s=second, m=millisecond)

If your timestamps have a different format you can use a custom columns definition to convert your timestamps to ISO timestamps. The converted timestamps will be available in their own column: ISO_TIMESTAMP. For more information please refer to 10 Custom Columns Definitions (CCD).

There are two types of graphs: timeline and column