Graph Configuration

Arnar Mar Sigurðsson Updated by Arnar Mar Sigurðsson

VDV includes a powerful graph editor used to customize graphs for Dashboards, Reports and Historical Data.

The graph editor is split into two parts. Variables to configure what to show on the graph and Display to configure how the graph looks.

Variables

Add new variable

Click the "+ Add new variable" button and select the variable or variables you want to add to the graph, new variables are added to on the top of the variable list

Remove variable

Hover over the variable you want to remove, a "x" icon will be shown in the top right corner, click it and configure the variable removal.

Basic variable settings

Basic variable settings are shown by default with more settings available when "Advanced settings" is clicked.

Color

Used to select the color used for the variable.

Type

Visualization type

Style

Specify the line drawing style

Weight

Line weight (width)

Marker

Data point marker style

Y-Axis

Specifies which Y-Axis is used to show the value scale on.

Advanced settings

Name

The name to show on the graph legend and tooltip, defaults to the variable name unless "Custom name" is checked

Custom name

Allows changing the Name if checked. If this is not checked the variable name will be used.

Connect NaN

NaN values are shown as gaps in the graph. This option can be used to connect the last good data points to show a continuous line instead of a gap.

Alarm Limits

Show alarm limits for the variable.

Low/High limits are shown as a yellow line while Low Low/High High is shown as a red line.

Rounding

Rounding precision, select between:

  • No - No rounding applied and value is shown as it was imported
  • Auto - Number of decimals is based on how big the number is
  • 1 to 5 - Number of decimals to show

Summary

Apply summary function to the data, available functions are:

  • Average
  • Sum
  • Max
  • Min
  • Median
  • Average Rolling
  • Sum Rolling
  • Max Rolling
  • Min Rolling
  • Median Rolling

Time period (Summary: Average, Sum, Max, Min, or Median)

Specify the time period used for the summary function, available options are:

  • Minute
  • Hour
  • Day
  • Month
  • Year

Fill Variable

Apply fill between this variable and another

Fill Color

Fill color if Fill Variable is set

Data

Apply data transform, available options are:

  • Raw - No transform applied
  • Relative Plot - First value on the scale starts at 0
  • Cumulative - Sums up all previous values
  • Rate of Change - Value = Current raw value - previous value

Advanced settings (Summary)

When Summary is set to: Average, Sum, Max, Min, or Median

Time period

Specify the time period used for the summary function, available options are:

  • Minute
  • Hour
  • Day
  • Month
  • Year

When Summary is set to: Average Rolling, Sum Rolling, Max Rolling, Min Rolling, or Median Rolling

- minutes

Number of minutes back in time when calculating rolling summary

+ minutes

Number of minutes forward in time when calculating rolling summary

Offset

After the rolling calculations have been calculated an offset can be applied to all values by setting the offset to eighter a negative or positive number. E.g. offset = -5 will subtract 5 from all the values in the dataset.

Advanced settings (Data)

When Data is set to Rate of change

Rollover

Adds the rollover value if the Rate of change is less then 0

Absolute

Show the absolute value of the Rate of change value

Display

Basic settings

Grid type

Graph grid display type

Show graph legend

Show variable legend under the graph

Include values

Include latest variable value in the legend

Logarithmic X-Axis

Use logarithmic scale for X-Axis

Shared tooltip

Show all variables in a single tooltip when hovering over the graph

Fixed Dates

Set fixed start/stop dates instead of using the time period being viewed

Y-Axis

The left and right Y-Axis can be changed independently and both have the same options, the right Y-Axis is only shown if the graph contains a variable with Y-Axis set to right.

Name

Label to show next to the Axis

Color

Color used for the axis scale label

Auto scale

Toggle between auto scale and manual min/max scale

Reverse Scale

Reverses the axis scale and displaying of all variables using that axis

Logarithmic

Use logarithmic scale for the axis

Plotlines

Plotlines are horizontal lines running through the graph at some value

Name

Name for the plotline

Color

Color used for the plotline

Line Weight

Weight (width) of the plotline

Value

Where the plotline should be drawn

Show Label

When checked the plotline name is shown over the line on the graph

Label Align

Set label alignment at left, center or right side of the graph

Layers

The layer feature can be used to add a piezometer layer indicators and variable indicator. The feature must first be enabled by checking the switch right of the layers header.

Creating layers

Layer definitions must first be created before they can be added to the graph.

Adding layers

Click on the "Select layer" input and select the layer you want to add, it will be added to the list below. Set the Stop value to where the layer should stop.

The same layer can be added multiple times.

Variable indicators

Each variable can be added as a indicator on the graph by setting the checkbox left of its name and settings its high value.

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