SetLineDisplay Method

SetLineDisplay is a method for a Trend Invoke method action.

  • Purpose: SetLineDisplay
  • Advanced Configuration: SetLineDisplay

Purpose: SetLineDisplay

To set the color, compression and expansion, and display method for a particular Line ID.

Advanced Configuration: SetLineDisplay

Click Advanced on the Action tab of the Procedure Information dialog box.

The Edit Method dialog box opens for the SetLineDisplay method

Configuration is as follows.

Field Description
Method name Name of the selected method. Note: Another method can be selected from the drop-down list.
Method result (Optional) Setpoint that contains the status value.
Class Boolean
Structure Type BOOL
Allowed Device or global Point ID.
When a user invokes the method, the method result contains one of the following values.
Value Method Result
1 The change was successfully made.
0 The change was not made.
Parameters LineID String that identifies the line ID whose display parameters you want to change.
Type An RGB Color value from either the Standard RGB Color Values Table or calculate your own.
NoneAvgFirstLastMinMax Expression or point ID for ??that evaluates to one of the following numeric values:
Value Trending will:
0 Not do any compression.
1 Plot the average of the values in the group.
2 Plot the first data point in the group.
3 Plot the last data point in the group.
4 Plot the data point from the group with the smallest value.
5 Plot the data point from the group with the largest value. If you are using compression, Trending automatically determines the group size.
6 Plot the average of the values in the group, using server side compression.
7 Plot the first data point in the group, using server side compression.
8 Plot the last data point in the group, using server side compression.
9 Plot the data point from the group with the smallest value, using server side compression.
10 Plot the data point from the group with the largest value, using server side compression.
Note: If you enter an option from 6 through 10, the NoneAvgFirstLastMinMax field performs the same as the Type field in SetLineCompression. Specify the time interval to collect the historical group size either in a SetLineCompression method or in the Trend control's Line Display dialog box.
StepSmooth Expression or Point ID ??that evaluates to one of the following numeric values.
Value Trending will
0 Display the line in step mode.
1 Display the line in smooth mode.