Navigation:  »No topics above this level«

Using the Graph Display

Return to chapter overview

The graphical display of the sensor data is a highly versatile tool for data analysis. Instead of only recognizing the simple fact, that a specific sensor had failed, the graph display can provide you with valuable information about the circumstances of the failure by depicting the temporal surrounding of notable events.

 

Basically, you will set the range of depicted events by setting the proper values in the calendar fields From: and To: at the bottom of the main screen. Alternatively, you could also choose to see the last X events being shown in the graph. If you should use both types of boundary setting, please note, that the number of shown events will be the primary criterion ServerSentinel will use to determine the graph. If you define a time range that contains more data sets than the number of requested sets, ServerSentinel will take only the latest X data sets, wherein X is the number of requested sets. If the defined time range contains less than the requested number of data sets, simply all sets in this time frame will be used to produce the graph.

 

Using the buttons save16 or copy16 you can export the desired graph directly into a file (i.e. save it) or to the clipboard for further use.

 

Having a graph is a convenient way to get the "big picture", but sometimes details are necessary as well. So whenever you move the mouse pointer into the graph area, you will notice a vertical black line appearing in the vicinity of your mouse pointer. This line shows the position of the next valid sensor value relative to your current mouse pointer position.

 

Additionally, the Graph display offers a 3D display option. If a simple line graph is not sufficient for your needs, you can switch to a 3D line drawing of the graph by clicking the cube16 button. Every other property of the graph will remain the same, so your 3D graph is still dragable, and zoomable as usual. Another click on the cube16 button returns you to the standard 2D drawing of the graph.

 

3d_graph

 

Of course, the graph display offers a zooming and scroll-by-dragging function. The magnifying glasses buttons ( zoomin16 zoomout16 ) to the left, offer the opportunity to zoom in or to zoom out, as you like. No matter how much zooming / unzooming is done, the set dates for the time interval will remain unchanged. So if you click on the zoomundo16 button, the original display status will be restored. Alternatively, you may also choose to zoom with your mouse scroll wheel.

 

3d_graph_zoomed

 

If your zoomed graph exceeds the boundaries of your display, you can bring back the missing sequences by drag-and-scroll. You may left-click-and-hold anywhere in the graph area and move the graph in whatever direction you want.

 

The option chartregions16 allows to highlight regions of times the sensor indicated a warning (orange) or error (red).

Example Temperature Sensor

Via the Weekend-Button calendar16 you can switch on and off displaying the Saturdays and Sundays for better orientation.

graph_show_weekends