DatalogGraph
Component to display one or more Datalogs in graphic format.The time is shown on the X axis, while the sampling value is shown on the Y axis.The following limits are used at the start:X axis : left limit corresponding to the oldest value in the memory. Right limit corresponding to the left limit + “timeGap” property.
If the “autoPan” property is activated, the most recent value is used as the right limit as well as the left limit corresponding to the right limit – “timeGap” propertyY axis: limits taken to the value memorised inside the Datalog description structures, MINY and MAXY parameters .
If the “autoScale” property is activated, the limits are expanded, if necessary, to display all the values of the window.Using the action buttons, the horizontal bar positioned at the base of the graph allows to:move the time axis towards the right (into the future) and towards the left (into the past), with 2 different speeds.Expand or shrink the time window displayedRestore the time display limits to the designed value, set to design time.Using the action buttons, the vertical bar positioned to the left of the graph allows to:Move the display window upwards (higher values) or downwards (lower values), with 2 different speeds.Expand or shrink the value window displayedRestore the Y display limits to the value memorised inside the Datalog description structures, MINY and MAXY parameters .A coloured bar at the top represents the portion of graph displayed at that time.An icon divided into two sections is shown in the top left corner:
The bigger area represents the validity of the data shown:Red: no Datalog contains data to be shownYellow: the data is being loaded and may only be partially displayedGreen: the data shown is correctThe smaller area indicates the degree of approximation due to the zoom:Red: no Datalog contains data to be shownYellow: due to the current zoom factor, it is possible that some data is invisible (in the time interval there is more data than that which can be represented in the graphic window)Green: all the data of the Datalog, in the active time window, is visibleIf you want to display the Y limts on the left of the graph, deposit one or more DataDisplay/DataSet making reference to the DATALOG_logx.RES_MINY and DATALOG_logx.RES_MAXY variables where, in place of “logx” it is necessari to specify the name of the datalog required. Example: DATALOG_LOG2.RES_MINY.
The bigger area represents the validity of the data shown:Red: no Datalog contains data to be shownYellow: the data is being loaded and may only be partially displayedGreen: the data shown is correctThe smaller area indicates the degree of approximation due to the zoom:Red: no Datalog contains data to be shownYellow: due to the current zoom factor, it is possible that some data is invisible (in the time interval there is more data than that which can be represented in the graphic window)Green: all the data of the Datalog, in the active time window, is visibleIf you want to display the Y limts on the left of the graph, deposit one or more DataDisplay/DataSet making reference to the DATALOG_logx.RES_MINY and DATALOG_logx.RES_MAXY variables where, in place of “logx” it is necessari to specify the name of the datalog required. Example: DATALOG_LOG2.RES_MINY.