tooltip
Configures tooltips.
A tooltip is a miniature rectangle displaying the value of a gauge's indicator. A tooltip appears when the end-user hovers the cursor over an indicator. You can enable/disable tooltips, change their appearance and format their text using fields of the tooltip configuration object.
color
Colors all tooltips.
This option supports the following colors:
- Hexadecimal colors
- RGB colors
- RGBA colors
- Predefined/cross-browser color names
- Predefined SVG colors
This option sets one color for all tooltips. You can specify a particular tooltip's color in the tooltip.customizeTooltip function.
container
Specifies the container in which to draw tooltips. The default container is the HTML DOM <body>
element.
customizeTooltip
Allows you to change the appearance of specified tooltips.
The tooltip's configuration.
This option should be assigned a function returning a specific object. The following fields can be specified in this object.
color
Specifies the color of a tooltip.borderColor
Specifies the color of the tooltip's border.fontColor
Specifies the color of the tooltip's text.text
Specifies the text displayed by a tooltip.html
Specifies the HTML markup displayed by a tooltip.NOTEIf you are going to use external resources (for example, images) in the markup, specify the size of the area they will occupy beforehand.
When implementing the function for this option, you can access the scale value represented by a tooltip. This value can be accessed using the fields of the object that is passed as the function's parameter. Alternatively, you can use the this object within the function. This object has the same structure as the object passed as a parameter.
To get general information on data formatting, refer to the Data Formatting topic.
opacity
Specifies tooltips' transparency.
This option accepts a value from 0 to 1, where 0 makes tooltips completely transparent, and 1 makes them opaque.
paddingLeftRight
Generates an empty space, measured in pixels, between a tooltip's left/right border and its text.
paddingTopBottom
Generates an empty space, measured in pixels, between a tooltip's top/bottom border and its text.
precision

Use the tooltip.format.precision option instead.
Specifies the precision of formatted values in a tooltip.
zIndex
Specifies a tooltip's z-index.
If the widget's container has the CSS z-index property specified, and tooltips are displayed incorrectly, configure their z-index using this option.