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Overview

This section discusses how to configure the TrendChart component


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Configuring the Trend Window
Configuring the Trend Window
Configuring the Trend Window 

The drawing tool has two trend objects, the TrendChart and the TrendChartLegacy. The TrendChart is the newest one and should be used by default. The TrendChartLegacy was kept to ensure compatibility with any projects created in a previous release; the iOS displays are using the previous object.

Double-click any Trend window object in the display to configure it. 

Trend window settings 

Field

Description

Control Name

Defines a name for the control so it can be accessed in the CodeBehind script. See Display Code Behind.

Bind to Tag

Enter with an object property where the Trend configuration will be saved.

Bind Pens to Tag

Enter with an object property where the Pen values will be saved.

Orientation

  • Horizontal.
  • Vertical, top to bottom.
  • Vertical, bottom to top.

Window

Sets the trend control background color.

Labels

Sets the color of the trend control labels.

Grid Lines

Sets the color of the grid lines

Grid Lines Stroke

Sets the grid line settings.

Cursor

Enables (selected) or disables (deselected) the cursor settings.

Mouse Actions

---------------------

Marker Tooltip

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Trend Auto Pens

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Allow Drop

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Y Axis

  • Y scale for each pen - Based on the min and max of each pen.
  • Y range - Defines the minimum and maximum values for the Y-axis.
  • Labels - Define the quantity of the vertical grid lines.
  • The format of the values in the Y-axis. For valid numeric formats, see Tag Formats. For example, N1 (number with 1 decimal place).
  • Stack Y scales - Check to stack similar Y scales.
  • Merge similar Y Scales - Check to merge the similar Y scales.

X Axis

  • Duration - Define the X-axis time span.
  • XY Chart - Check to define a X axis range
  • Labels - Define the quantity of the horizontal grid lines.
  • The X-axis format is defined by two fields: the first line format and the second line format. This is especially useful to define label marks that require two lines of information. For the valid date and time formats, see Tag Formats. For example, T (Time) for the first line format, d (short date) for the second line format.
  • Navigation Control - Check to make the navigation controls visible

Legend

Defines the position of the legends in the Trend Window.

  • None.
  • Top Left.
  • Top Right.
  • Bottom Left.
  • Bottom Right
  • Right Panel.
  • Bottom Panel.

Pens

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TagTagName

Sets the tag that will provide the value for the pen.

Pen Settings

Sets the configuration of the Line color, Line stroke, Fill area, and the type of Marker.

MinValue

Linear scale reference for the tag value, according to the Y-axis range.

MaxValue

Linear scale reference for the tag value, according to the Y-axis range.

Auto

Sets the value to auto, instead use MinValue and MaxValue

SPCEnable

Enable or disable the SPC settings.

SPCSettings

Click to open the SPC settings.

Show Value Area

Fill the pen area with the specified color

PenLabel

Sets the pen name.

Filter level

An integer number that "group" points on XY axis, calculating the average between then.

LimitMinMaxValue

Remove the points less than Tag.Min and greater than Tag.Max.

Square

Fill the pen points with a square wave.


Double-click any Trend window legacy object in the display to configure it. 

Trend window legacy settings 

Field

Description

Control Name

Defines a name for the control so it can be accessed in the CodeBehind script. See Display Code Behind.

0(online) 1(history)

0 - the control shows the online data.
1 - the control shows the history data. For example: Tag.onLineHist.

OnlineTrigger

The refresh rate of the online trend control. For example, 00:00:01 or {Tag.trendTimeSpan}.

Time Before Now

This config changes the start time of the trend to be a specific time in the past.

HistoryDateTime

The initial point for the history trend control. For example, {Tag.initialTrendHistory}.

Grid Line

Sets the color of the Grid lines

Window

Sets the trend control background color.

Labels

Sets the color of the trend control labels.

Off line Marker

Sets the marker when the trend is in offline mode

Cursor Enable

Enables (selected) or disables (deselected) the vertical cursor.

Pens Legend

Defines the position of the pens legend in the trend control.

Y Axis

  • Y scale for each pen - Based on the min and max of each pen.
  • Y range - Defines the minimum and maximum values for the Y-axis.
  • The format of the values in the Y-axis. For valid numeric formats, seeTag Formats. For example, N1 (number with 1 decimal place).
  • Stack Y scales - Check to stack similar Y scales.
  • Merge similar Y Scales - Check to merge the similar Y scales.

Range

Defines the minimum and maximum values for the Y-axis.

Labels

Defines the quantity of the horizontal grid lines.

Format

The format of the values in the Y-axis. For valid numeric formats, see Tag Formats. For example, N1 (number with 1 decimal place).

X Axis

  • Duration - Define the X-axis time span.
  • XY Chart - Check to define a X axis range
  • Labels - Define the quantity of the horizontal grid lines.
  • The X-axis format is defined by two fields: the first line format and the second line format. This is especially useful to define label marks that require two lines of information. For the valid date and time formats, see Tag Formats. For example, T (Time) for the first line format, d (short date) for the second line format.
  • Navigation Control - Check to make the navigation controls visible

Interval

Defines the X-axis time span.

Labels

Defines the quantity of the horizontal grid lines.

Format

The X-axis format is defined by two fields: the first line format and the second line format. This is especially useful to define label marks that require two lines of information. For valid date and time formats, see Tag Formats. For example, T (Time) for the first line format, d (short date) for the second line format.

Pens


Visible

Shows (1) or hides (0) the selected pen. Ex 1 or {showPen1}.

Tag

Sets the tag that will provide the value for the pen.

Min

Linear scale reference for the tag value, according to the Y-axis range.

Max

Linear scale reference for the tag value, according to the Y-axis range.

Pen

Choose the style, the color, and the thickness of the pen line.

CursorValue

Set the tag that will receive the real value of the Y-axis, according to the cursor position. For example: Tag.pen1CursorValue.

FieldName

Set the pen name.

SPC

Check to enable SPC

MouseActions

Check to enable mouse actions on trend

Tooltips

Check to enable tool tip on hover

Allow edit pens/labels

Check to allow the pens and labels to be edited

Y scale for each pen

Y scale for each pen based on the min and max of each pen.

Merge same Y scale

Check to merge the similar Y scales.

Using Y Axis Scaling 

Considering:

Y-axis Min = 0;

Y-axis Max = 100;

The trend control allows many pens to be displayed together. When your pens do not have the same range, you can use the tips below to fit your data in the same chart and for better visualization:

  • If a pen has a lower range, 0 to 1 for example, you can set the max property of the pen to 1. When the real tag value is 1, the value 100 will be displayed in the chart. (100/1 scale).
  • If a pen has a higher range, 0 to 1000 for example, you can set the max property of the pen to 1000. When the real tag value is 1000, the value 100 will be displayed in the chart. (1/10 scale).



===============


  • Added new property "FilterExpression" (string) in TDrillingChart and TTrendChart controls. This property is used with "select" command in where condition while getting samples from SQL historic.
  • Added new property "DisableXMinMaxChecking" (bool) in TDrillingChart control. This property is used to disable checking while scrolling X Axis, such as: depth < 0 and depth > current hole depth.
  • Created new properties and method in TDrillingChart and TTrendChart controls [only Windows Desktop]:
    • double RegionBeginPoint;
    • double RegionEndPoint;
    • DateTimeOffset RegionBeginDateTime [only GET];
    • DateTimeOffset RegionEndDateTime [only GET];
    • bool EnableRegionMode;
    • bool EnableRegionScroll;
    • Brush RegionOutsideBrush;
    • Brush RegionInsideBrush;
    • Brush RegionInsideStrokeBrush;
    • int RegionInsideStrokeThickness;
    • public void SetRegionDateTime(DateTimeOffset begin, DateTimeOffset end);
  • Add event handler while region is changed [only Windows Desktop]:
    • public event RegionChangedEventHandler RegionChangedEvent



  • Added new property "FilterExpression" (string) in TDrillingChart and TTrendChart controls. This property is used with "select" command in where condition while getting samples from SQL historic.
  • Added new property "DisableXMinMaxChecking" (bool) in TDrillingChart control. This property is used to disable checking while scrolling X Axis, such as: depth < 0 and depth > current hole depth.
  • Created new properties and method in TDrillingChart and TTrendChart controls [only Windows Desktop]:
    • double RegionBeginPoint;
    • double RegionEndPoint;
    • DateTimeOffset RegionBeginDateTime [only GET];
    • DateTimeOffset RegionEndDateTime [only GET];
    • bool EnableRegionMode;
    • bool EnableRegionScroll;
    • Brush RegionOutsideBrush;
    • Brush RegionInsideBrush;
    • Brush RegionInsideStrokeBrush;
    • int RegionInsideStrokeThickness;
    • public void SetRegionDateTime(DateTimeOffset begin, DateTimeOffset end);
  • Add event handler while region is changed [only Windows Desktop]:
    • public event RegionChangedEventHandler RegionChangedEvent


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