Bar Chart

About 2 minchartbardata

The Bar Chart is a common component for visualizing, analyzing and comparing time series data in a form of Bars. The Bar Chart shows values of a selected parameter over a certain period of time.

Supported data types

The following table outlines the data types supported by the Bar Chart component:

Channel Type	Supported?
Tag	🟢
Asset (Attributes)	🟢
Timeframe (Attributes)	🟢
Tag Search	⚫
Asset Search	⚫
Timeframe Search	⚫

Quick Start

To quickly start using the Bar Chart, drag it onto the work area, then search for the tag, asset attribute, or timeframe you want to visualize and drop it onto the component. Drop several channels to compare them side by side. See the Examples below.

Generic Settings

Each IOTA Component has a set of generic settings shared among most of the components. The generic settings are described below:

Workspace

These settings are applicable to the whole view.

Grid Properties

The grid is provided for convenience when developing dashboards as visual guides and snapping capability.

By default the work area grid is enabled and can be customized or even disabled in this menu.

Property Name	Description
Grid Color	Color of the grid
Grid Size	Size of the grid step
Snap to Grid	Enable/Disable snapping to the grid
Show Grid Lines	Show the grid as lines
Show Grid Dots	Show the grid as dots

Align Controls

The Align controls provides a means to align and distribute selected objects on the display.

Align Objects

You can align several components horizontally using the Align-left, Align-center or Align-right controls
You can align several components vertically using the Align-top, Align-vertical-center or Align-bottom controls

Distribute Objects

You can distribute several components on the vertical/horizontal axis by selecting them (select at least 3 components) and pressing Align-vertical/Align-horizontal
You can make all the selected components the same width/height by selecting them and pressing Adjust Width/Adjust Height

Tips

Hold the Ctrl button to select several components. The oldest component is used as a reference.

Anchor Points Options

The anchor points are eight squares around an object that allow you to resize the object. The anchor point options allow you to define the appearance of the anchor points.

Property Name	Description
Reference Point Color	Sets the color of the reference point (see Rotation and Position for more details)
Anchor Points Color	Sets the color of the rest of the seven anchor points
Point Options Color	Sets the color of the point options (only for Line and Bezier Curve)
Show Point Options	Show/Hide the point options

Locked View Options

These options define the appearance of the component border in the locked view for the selected component.

Property Name	Description
Active Border Fill	Sets the fill color of the border
Active Border Width	Sets the width of the border

Variable

Every component has a unique variable name. This variable name can be used to reference the component in multi-state configurations and other scripts.
On creation, every component is given a default name. This can be overwritten to be more user-friendly. To do so simply overwrite the value in the variable input field.

Arrange / Remove

Send Backward - move object one layer down
Bring Forward - move object one layer up
Send to Back - place object under all layers
Bring to Front - place object above all layers
To send/bring objects to the front/back use the first four buttons.
Any set of components can be deleted by either using the button or delete/del keyboard keys.

Rotation and Position

Reference Anchor Point - allows you to select one of the anchor points as a reference so that you can set an Angle (clockwise) of incline relative to this point.
By default the reference anchor point is the top left corner. You can also rotate the component by dragging one of the yellow corner points.
You can set the position of the component by setting the X and Y coordinates relative to theReference Anchor Point and the top-left corner of the work area.
You can drag any of the anchor points to change the width and height of the component, or you can set it manually by editing the Width and Height boxes.
Set Lock Aspect Ratio so that while changing width and height, the component width to height ratio stays the same
Transform allows you to view the component as a mirror or a reflection of itself

Actions

Actions or multi-states are programmable conditional states handled by user-generated code.

Note

Actions that have script handlers are marked with a circle

in the top right corner.

The currently supported actions are described in the table below:

Action	Trigger
OnCreate	When the component is created
OnFocus	When the component is selected
onClick	When the component is clicked or the selection is changed
onData	Each time the data changes for assigned channels
onTick	20 times per second
onDblClick	On mouse double click
onHover	When the mouse is over the component (and not when the mouse is not)

Property Name	Description
Show Title	Show/hide the title line
Height	Height of the title line
Text	Text itself
Background Color	Background color of the title line
Text Color	Text color of the title line
Text Align	Alignment of the text within the title line: Left, Center, Right

Properties

Using the Attribute Mapping Dialog you can add attributes to the current mapping and change their properties:

Add attributes to the current mapping one by one with the Add button or all at once with the Add All button
To hide an attribute click on Toggle Visibility
To access to Attributes properties click on Properties
To save the attribute mapping (without adding the current channel) press Train Only
To save the attribute mapping and add the current channel press Train and Add
To exit the screen without saving your changes, press Close

Global Time Control

To activate the Global Time Control panel click on Global Time Control Settings button in the upper area of the View:

Additionally, you can configure the Global Time Control option in Settings for every component on the current display.

Use Component as Global Time Control : if enabled, the component is able to set the time context for all components on the current display.
Ignore Global Time Control : when enabled, the option allows the component to function independent of global time set elsewhere.

The example below demonstrates the usage of the Global Time Control panel and how the value changes in the space of an hour:

Channels

The Channels section lists data that is assigned/mapped onto the component.
In this menu, you can change the data value color, adjust the display properties and un-assign or remove the data from the component.

Channels Menu

Properties

The properties menu for Channels allows you:

to modify the Label of the DataSource
to set UOM, lower and upper values
to choose number format and displayed digits
to adjust the line formatting for trend line components
to configure the additional regression lines that can be plotted for supported components

Supported Multi-State Parameters

Each of the visual parameters listed below can be used as a multi-state, i.e. used in actions and scripts:

Title and Text
- Text
Rotation and Position
- Rotation
Common
- Blink
- Hidden
Title
- Show Title
- Title Padding
- Title Height
- Title Text
- Title Background Color
- Title Color
- Title Text Align
- Title Font Family
- Title Font Size
- Title Font Italic
- Title Font Bold
- Title Font Underline
Visual Properties
- Border Color
- Border Width
- Background Color
- Grid Color
- Cursor Color
- Scale Label Color
- Label Color
- Timestamp Color
- Value Color
- UOM Color
Font
- Scale Font Family
- Scale Font Size
- Scale Italic
- Scale Bold
- Time range Font Family
- Time range Font Size
- Time range Font Italic
- Time range Font Bold
- Time range Font Underline
- Legend Property
- Legend Font Family
- Legend Font Size
- Legend Italic
- Legend Bold
- Legend Underline
Format
- Elements Arrange
- Show Grid
- Chart Padding
- Legend Elements
- Legend HAlign
- Legend VAlign
- Legend Padding
- Label Source
- Custom Label
- Custom UOM
- Number Format
- Show Lock
- Show Visibility
- Show Remove Channel Button
- Transpose
- Controls HAlign
- Controls VAlign
- Time HAlign
- Time VAlign
- Transpose Time
Scales / Cursors
- Show Cursor
- X-Scale Type
- X-Scale Position
- Axis Height
- X-Scale Inside
- Y-Scale Type
- Y-Scale Position
- Axis Width
- Y-Scale Inside
- Flip Scales
- Time Scale Inverted
- Chromatic Timescale
Component Specific
- Global Time Control

Bar Chart Settings

Beyond the generic settings, the Bar Chart adds its own option groups (open the Settings panel with the chart selected):

Visual Properties — Border, Background, Grid, Cursor, Scale-label, and Legend colors, plus border width and radius.
Format — scale layout and padding, legend layout and alignment, number format, and the per-series legend controls.
Scales & Cursors — X/Y scale type and position, axis size, flip/invert, and X/Y limits.
3D Settings — switch the chart between 2D and 3D rendering.
Font and Tooltip — scale/legend fonts and hover tooltip contents.