Chart Attributes

Caption of the chart.

Sub-caption of the chart.

Sets horizontal alignment of caption

Whether caption should be on top of the data plot area

Sets the caption font size in pixels. Besides pixels (px) values can also be defined in rem, %, em, and vw.

Sets the sub-caption font size (in pixels). Besides pixels (px) values can also be defined in rem, %, em, and vw.

Sets the caption font family

Sets the sub-caption font family

Sets the caption font color

Sets the sub-caption font color

Whether the caption font should be displayed in bold

Whether the sub caption font should be displayed in bold

Whether the caption is aligned with the canvas. Else, it will be aligned with the entire chart area

If caption is not centre aligned, lets you configure the padding (in pixels) from either edge. Will be ignored if caption is centre aligned.

Whether to render the gauge in edit mode? In edit mode, user can drag and rotate the dial to new values.

This attribute lets you set the configuration whether the chart should appear in an animated fashion. If you do not want to animate any part of the chart, set this as 0.

This attribute sets the animation duration of the chart. animationDuration attribute is applicable only if animation of the chart is enabled.

Default value: 1 sec

The entire chart can now act as a hotspot. Use this URL to define the hotspot link for the chart. The link can be specified in FusionCharts Link Format.

Sets whether the clickURL attribute (that sets a link to which the user is directed when the chart is clicked) overrides the link attribute (that sets a link to which the user is directed when a data plot is clicked).

Default value: 0 (clickURL does not override link)

Each chart has 5 pre-defined color palettes which you can choose from. Each palette renders the chart in a different color theme.

If you want your own palette derived from a particular hex color, you can specify the same here. All other colors on the chart will be automatically derived from that palette.

If you've defined the chart parameters (like gauge origin, co-ordinates etc.) using a different chart size and now want to scale the chart to a different size, you need to specify the original width and height and then set this attribute to 1.

Setting this attribute to 1, you can allow the chart to automatically resize itself when the parent container of the chart is resized. This setting is not applicable when autoScale is set to 0.

If you've opted to dynamically resize the chart, you can convey the original width of chart using this attribute. It refers to the width based on which you had defined the various co-ordinates/radius of the gauge. For example, if you had designed an angular gauge with 300 px width and in that you had set the gauge radius to be 100, then you can use the dynamic resizing feature and specify origW='300'. It will automatically check the current width and scale the radius etc. appropriately. Please note that both the original width and height of the chart need to be set. To know more on how this attribute works, please read the Dynamic Resizing page.

If you've opted to dynamically resize the chart, you can convey the original height of chart using this attribute. It refers to the height based on which you had defined the various co-ordinates/radius of the gauge. For example, if you had designed an angular gauge with 300 px height and in that you had set the gauge radius to be 100, then you can use the dynamic resizing feature and specify origH='300'. It will automatically check the current height and scale the radius etc. appropriately. Please note that both the original width and height of the chart need to be set. To know more on how this attribute works, please read the Dynamic Resizing page.

Whether to show each dial's value?

Whether to show dial value below the pivot or above it?

Whether to apply the shadow effect for the chart?

Whether to show "Print Chart" item in the context menu of the chart? Even if you opt to hide the item in context menu, you can still opt to invoke print() JavaScript method of the chart to print the same.

By default, the real-time charts wait for a few seconds after rendering for the first time and before updating itself with new data. To allow the chart to start updating itself as soon as it is rendered, set this attribute to 1.

When enabled in auto mode, long data labels are truncated by adding ellipses to prevent them from overflowing the chart background. The default value is 1.

This attribute, when set to 1, indicates to the chart that the text (rendered on the chart) may contain RTL characters and the textual display has to be managed accordingly.

This attribute changes the theme of the chart. There are 7 types of themes which have been made according to the different color combinations.

This attribute allows to set a custom font for all chart messages.

This attribute allows to set a custom font size for all chart messages.

This attribute allows to set a custom font color for all chart messages.

This attribute allows to set a custom horizontal alignment for all images displayed as chart messages.

Default value: middle

This attribute allows to set a custom vertical alignment for all images displayed as chart messages.

Default value: middle

This attribute allows to set a transparency for all images displayed as chart messages.

Default value: 100

This attribute allows to set a scale for magnifying all images displayed as chart messages.

Default value: 100

This attribute allows to set the message to be displayed when a chart begins to load. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set the font for the message displayed when a chart begins to load.

This attribute allows to set the font size for the message displayed when a chart begins to load.

This attribute allows to set the font color for the message displayed when a chart begins to load.

If an image is displayed as the chart loadMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart loadMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart loadMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart loadMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute allows to set the message to be displayed when the specified chart type is not supported. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set the font for the message displayed when the specified chart type is not supported.

This attribute allows to set the font size for the message displayed when the specified chart type is not supported.

This attribute allows to set the font color for the message displayed when the specified chart type is not supported.

If an image is displayed as the chart typeNotSupportedMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart typeNotSupportedMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart typeNotSupportedMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart typeNotSupportedMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute allows to set the message to be displayed if an error is encountered while rendering the chart. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set a font for the message displayed if an error is encountered while rendering the chart.

This attribute allows to set the font size for the message displayed if an error is encountered while rendering the chart.

This attribute allows to set the font color for the message displayed if an error is encountered while rendering the chart.

If an image is displayed as the chart renderErrorMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart renderErrorMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart renderErrorMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart renderErrorMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute allows to set the message to be displayed when chart data begins loading. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set a font for the message displayed when chart data begins loading.

This attribute allows to set the font size for the message displayed when chart data begins loading.

This attribute allows to set the font color for the message displayed when chart data begins loading.

If an image is displayed as the chart dataLoadStartMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart dataLoadStartMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart dataLoadStartMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart dataLoadStartMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute allows to set the message to be displayed if an error is encountered while loading chart data. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set a font for the message displayed if an error is encountered while loading chart data.

This attribute allows to set the font size for the message displayed if an error is encountered while loading chart data.

This attribute allows to set the font color for the message displayed if an error is encountered while loading chart data.

If an image is displayed as the chart dataLoadErrorMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart dataLoadErrorMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart dataLoadErrorMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart dataLoadErrorMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute allows to set the message to be displayed if the data to be loaded for the chart is invalid. To display an image as the chart message, prefix I- to the image URL.

This attribute allows to set the font for the message displayed if the specified chart data is invalid.

This attribute allows to set the font size for the message displayed if the specified chart data is invalid.

This attribute allows to set the font color for the message displayed if the specified chart data is invalid.

If an image is displayed as the chart dataInvalidMessage, this attribute allows to set a custom horizontal alignment for the image.

Default value: value assigned to the baseChartMessageImageHAlign attribute

If an image is displayed as the chart dataInvalidMessage, this attribute allows to set a custom vertical alignment for the image.

Default value: value assigned to the baseChartMessageImageVAlign attribute

If an image is displayed as the chart dataInvalidMessage, this attribute allows to set the transparency of the image.

Default value: 100

If an image is displayed as the chart dataInvalidMessage, this attribute allows to set the scale for magnifying the image.

Default value: 100

This attribute lets you set whether the lower limit will be 0 (in case of all positive values on chart) or should the lower limit adapt itself to a different figure based on values provided to the chart.

This attribute helps you explicitly set the upper limit of the chart. If you don't specify this value, the chart automatically calculates the upper limit based on the data provided by you.

This attribute helps you explicitly set the lower limit of the chart. If you don't specify this value, the chart automatically calculates the lower limit based on the data provided by you.

This attribute allows you to display a label instead of the lower limit. For example, in a chart displaying Literacy Rate on a scale of 0 - 100%, you may need to show the label Low at the starting point of the chart. Upon using this attribute to specify the label, the value 0 will be replaced by Low. Default value: If you do not specify the lowerLimitDisplay attribute, the lower limit value will be shown.

This attribute allows you to display a label instead of the upper limit. Upon using this attribute, the upper limit of the chart gets replaced by the label specified. Default value: If you do not specify the upperLimitDisplay attribute, the upper limit value will be shown.

Whether to show tick marks?

Whether to show tick values?

Whether to show the first and last tick value (i.e., chart lower and upper limit)?

Whether to adjust major tick mark number so as to best distribute the specified chart scale.

Whether to place ticks inside the gauge (on the inner radius) or outside?

Whether to place tick values inside the gauge?

Number of major tick marks.

Major tick marks color.

Major tick marks alpha.

Height of major tick marks.

Thickness of major tick mark line.

Number of minor tick marks.

Color of minor tick marks.

Alpha of minor tick marks.

Height of minor tick marks.

Thickness of minor tick marks.

Distance between tick values and tick marks.

Distance between trend values and tick lines.

If you need to show every n-th tick value only, you can specify that value here.

Number of decimals to which tick values will be rounded to.

Whether to force number of decimals on tick values?

Whether to ask the chart to automatically place tick values to reduce overlapping of the tick values with the gauge.

This parameter sets the path of the page which is supposed to relay real-time data to the chart. If you've special characters as a part of your data stream URL, like ? or &, you'll need to URL Encode the entire dataStreamURL. This page needs to be on the same sub-domain on which the chart is hosted and invoked from.

For this parameter, you can specify the number of seconds after which the chart will look for new data. This process will happen continuously - i.e., if you specify 5 seconds here, the chart will look for new data every 5 seconds.

Constantly changing data stamp that can be added to real time Data URL, so as to maintain a state. Please see the section Real time capabilities > Adding data stamp

Whether to show the real-time update related menu items (like Start/Stop Update) in chart's context menu? Note: For JavaScript charts real-time update related menu items do not appear by default. You need to explicitly set 'showRTMenuItem': '1' in the chart object. The menu appears as a button on the bottom-left corner of the JavaScript chart. You can then use the button to Start/Stop Update or Clear chart.

Angle from where the gauge will start drawing. Please see the section Configuring angles & origin to learn more about this. Default value is 180.

Angle where the gauge will end drawing. Please see the section Configuring angles & origin to learn more about this. Default value is 0.

You can manually specify the x co-ordinate at which the center of the gauge will be placed. This comes handy when you are designing small angle gauges or when you are using custom objects in the chart to draw certain objects and need to set the exact center position.

You can manually specify the y co-ordinate at which the center of the gauge will be placed. This comes handy when you are designing small angle gauges or when you are using custom objects in the chart to draw certain objects and need to set the exact center position.

Outer radius for the color range scale.

Inner radius for color range scale. It can either be in exact pixels or in percentage of outer radius. For example, if the value of gaugeOuterRadius attribute is 10 and the value of gaugeInnerRadius attribute is set to 50%, the value of gaugeInnerRadius will be calculated and set as 5px, i.e. 50% of 10.

This attribute specifies the gradient fill formula for the gauge scale. Example: {light-10},{light-20},{light-60}

Note: This attribute is not supported in IE8

This attribute sets the ratio of each color separated by comma using gaugeFillMix attribute.

Whether to show a border around gauge scale?

Color of gauge scale border. You can either specify a hex code here (like 333333), or a single token from gradient fill mix like {dark-20} or {light-30}. The chart will then calculate the border color for each color range individually (based on the color code for each color range).

Thickness of gauge scale border.

Alpha of gauge scale border.

Radius of the pivot.

Fill color for the pivot.

Fill alpha for the pivot.

Angle for fill (if linear gradient).

Whether to fill as linear gradient or radial gradient (if gradient at all)?

This attribute specifies the gradient fill formula for the pivot. Example: {light-10},{light-20},{light-60}

Note: This attribute is not supported in IE8

This attribute sets the ratio of each color separated by comma using pivotFillMix attribute.

Whether to show border for the pivot?

Border thickness for pivot.

Border color for pivot.

Border alpha for pivot.

This attribute fills the background color of the pivot.

Whether to use message logger for the chart?

This attribute lets you set the width percent of the message logger window w.r.t entire chart width. So, if you set it as 80, the message logger window will take up 80% of chart width.

This attribute lets you set the height percent of the message logger window w.r.t entire chart height.

Whether to show the title for message logger?

If you've opted to show the title for message logger, you can define your custom title here. Examples are "Error log", "Server History" etc. The title displays at the top left corner of chart.

You can customize the color of the entire message log window by setting a hex value for this attribute.

The messages streamed to the chart can either be displayed in the message log window or can be passed to JavaScript (which we'll see next). This attribute lets you control whether the messages should be logged in the in-built log window.

This attribute lets you configure whether each message streamed from the server should be passed to a local JavaScript function.

If you've opted to pass each message to JavaScript function, this attribute lets you define the name of the function. This helps you create your custom functions to react to messages streamed from server.

Whether to pass all message envelope parameters to the custom JavaScript function.

This configuration determines whether the numbers displayed on the chart will be formatted using commas, e.g., 40,000 if 'formatNumber': '1'; and 40000 if 'formatNumber': '0';.

Using this attribute, you could add prefix to all the numbers visible on the graph. For example, to represent all dollars figure on the chart, you could specify this attribute to $ to show like $40000, $50000.

Using this attribute, you could add suffix to all the numbers visible on the graph. For example, to represent all figures quantified as per annum on the chart, you could specify this attribute to '/a' to show like 40000/a, 50000/a.

Number of decimal places to which all numbers on the chart will be rounded to.

Whether to add 0 padding at the end of decimal numbers? For example, if you set decimals as 2 and a number is 23.4. If forceDecimals is set to 1, the number will automatically be converted to 23.40 (note the extra 0 at the end).

Configuration whether to add K (thousands) and M (millions) to a number after truncating and rounding it - e.g., if formatNumberScale is set to 1, 1043 will become 1.04K (with decimals set to 2 places). Same with numbers in millions - an M will be added at the end.

The default unit of the numbers that you're providing to the chart.

Unit of each block of the scale.

Range of the various blocks that constitute the scale.

If a data value is less than the lowest given number is the number scale, this attribute forces the lower value of the numberScaleUnit to be applied to that data value. This attribute works only when “formatNumberScale”: “1” and the defaultNumberScale attribute is not defined.

For example, if “numberScaleUnit”: “K, M”, “numberScaleValue”: “1000, 1000”, and “forceNumberScale”: “1”, a data value of 400 will be rendered as 0.40K.

Whether recursive scaling should be applied.

How many recursions to complete during recursive scaling? -1 completes the entire set of recursion.

What character to use to separate the scales that are generated after recursion?

This attribute helps you specify the character to be used as the decimal separator in a number.

This attribute helps you specify the character to be used as the thousands separator in a number.

This option helps you specify the position of the thousand separator.

In some countries, commas are used as decimal separators and dots as thousand separators. In XML/JSON, if you specify such values, it will give an error while converting to number. The chart accepts the input decimal and thousand separator from user, so that it can convert it accordingly into the required format. This attribute lets you input the decimal separator.

In some countries, commas are used as decimal separators and dots as thousand separators. In XML/JSON, if you specify such values, it will give an error while converting to number. The chart accepts the input decimal and thousand separator from user, so that it can convert it accordingly into the required format. This attribute lets you input the thousand separator.

This attribute sets the background color for the chart. You can set any hex color code as the value of this attribute. To specify a gradient as background color, separate the hex color codes of each color in the gradient using comma. Example: #FF5904, #FFFFFF.

Sets the alpha (transparency) for the background. If you've opted for gradient background, you need to set a list of alpha(s) separated by comma.

If you've opted for a gradient background, this attribute lets you set the ratio of each color constituent.

Angle of the background color, in case of a gradient.

Whether to show a border around the chart or not?

Border color of the chart.

Border thickness of the chart.

Border alpha of the chart.

To place any image (JPG/PNG/GIF) as background of the chart, enter the (path and) name of the background image. It should be in the same domain as the chart.

This attribute specifies the opacity for the loaded background image.

Helps you specify the mode in which the background image is to be displayed. Stretch - expands the image to fit the entire chart area, without maintaining original image constraints. Tile - the image is repeated as a pattern on the entire chart area. Fit - fits the image proportionately on the chart area. Fill -proportionately fills the entire chart area with the image. Center - the image is positioned at the center of the chart area. None - Default mode.

Helps you to vertically align the background image.

Helps you to horizontally align the background image.

Helps you magnify the background image.This attribute will only work when the attribute bgImageDisplayMode is set to none, center, or tile.

You can load an external logo (JPEG/PNG) to your chart, this attribute lets you specify the URL. Due to cross domain security restrictions it is advised to use a logo from the same domain name as your charts.

This attribute helps you set the amount of empty space that you want to put on the left side of your logo image. Nothing is rendered in this space.

This attribute helps you set the amount of empty space that you want to put on top of your logo image. Nothing is rendered in this space.

Where to position the logo on the chart: TL - Top-left TR - Top-right BR - Bottom right BL - Bottom left CC - Center of screen

Once the logo has loaded on the chart, you can configure its opacity using this attribute.

You can also change the size of externally loaded logo at run-time by specifying a value for this parameter.

If you want to link the logo to an external URL, specify the link in this attribute. The link can be in FusionCharts link format, allowing you to link to new windows, pop-ups, frames etc.

This attribute lets you set the font face (family) of all the text (data labels, values etc.) on chart. If you specify the outCnvBaseFont attribute also, then this attribute controls only the font face of text within the chart canvas bounds.

This attribute sets the base font size of the chart i.e., all the values and the names in the chart which lie on the canvas will be displayed using the font size provided here. Besides pixels (px) values can also be defined in rem, %, em, and vw.

This attribute sets the base font color of the chart i.e., all the values and the names in the chart which lie on the canvas will be displayed using the font color provided here.

Specifies the value font size. Besides pixels (px) values can also be defined in rem, %, em, and vw.

Whether to show tooltip for the chart?

Background color for the tooltip

Font color for the tool-tip.

Border Color for the tooltip.

Sets the border transparency for tool tip.

Whether to show shadow for tooltips.

Configure the tooltip's position.

Where to position the toolbar on the chart: TL - Top-left TR - Top-right BR - Bottom right BL - Bottom left CC - Center of screen

Sets the toolbox position on the chart with respect to x-axis.

Sets the toolbox position on the chart with respect to y-axis.

Sets the horizontal alignment of the toolbar on the chart.

Sets the vertical alignment of the toolbar on the chart

Sets the color of the toolbar buttons.

Enables/disables display of tooltips for toolbar buttons.

You can change the scale of the toolbar by specifying a value for this attribute.

Whether the chart will allow exporting to images, PDFs, SVG, XLSX or CSV format.

Default value: 0

In case of server-side exporting, the action specifies whether the exported image will be sent back to client as download, or whether it'll be saved on the server.

Default value: download

In case of server side exporting, this refers to the path of the server-side export handler (the ready-to-use scripts that we provide).

Lets you configure what output formats to allow for export of chart, in the export context menu, and also customize the label for each menu item. The attribute value should be a pipe (|) delimited separated key-value pair. Example: exportFormats: 'PNG=Export as High Quality Image|JPG|PDF=Export as PDF File'

This attributes sets the modes of export. To enable client-side exporting, set this attribute to client.

Default value: auto.

Note: Starting v3.12.1, the exportMode attribute replaces the exportAtClientSide attribute. However, you don’t need to make any changes to the existing setup because, the FusionCharts library comes with the proper mapping already provided.

Whether the menu items related to export (e.g., Save as JPEG etc.) will appear in the context menu of chart.

In case of server-side exporting and when using download as action, this lefts you configure whether the return image, PDF, SVG or XLSX will open in same window (as an attachment for download), or whether it will open in a new window.

Default value: _self

Using this attribute you can specify the name (excluding the extension) of the output (export) file.

Whether to enable hover effect on charts for all elements

This attribute sets the background color of the gauge’s dial when hovered.

This attribute sets the transparency of the gauge’s dial when hovered.

Sets the border color for the dial of the gauge when hovered.

Sets the transparency for the dial’s border of the gauge when hovered.

Sets the thickness for the dial’s border of the gauge when hovered.

Amount of empty space that you want to put on the left side of your chart. Nothing is rendered in this space.

Amount of empty space that you want to put on the right side of your chart. Nothing is rendered in this space.

Amount of empty space that you want to put on the top of your chart. Nothing is rendered in this space.

Amount of empty space that you want to put at the bottom of your chart. Nothing is rendered in this space.

Sets the transparency of each range in the color range.

Border alpha for the color range.

Border color of that particular color in the range. If you want to specify a different border for each range in the color range, you can use this attribute.

Hex code of the color range using which it will be filled.

Indicates the end value of a color range. The maxValue of the last color range should be equal to the chart's upperLimit.

Indicates the starting value of a color range. The minValue of the first color range should be equal to the chart's lowerLimit and the minValue of the succeeding color range should be equal to the current maxValue.

Width of the bottom part of the dial (the part connected to pivot).

Background color for dial. You can either specify a single color (e.g., CCCCCC) for solid fill or multiple colors separated by comma to attain a gradient fill.

Border alpha for the dial.

Border color for the dial.

Border thickness for the dial.

Whether this dial will be editable?

Each dial can have a unique ID, using which it can be referred to in JavaScript and real-time data updates.

Each dial can be linked to an external URL using this attribute.

Radius for the dial (in pixels).

If you want the dial to extend beyond the pivot (in opposite side) for more realistic looks, you can set the extension distance (in pixels) using this attribute.

Whether to show value for this dial?

Each dial can have custom tool text using this attribute.

Width of the top part of dial.

Numerical value for the dial that will be shown on the chart.

Whether to place value textbox x-position?

Whether to place value textbox y-position?

Radius to be applied to the vertices of the pivot end of the dial. Default value is 0. Use this attribute along with non-zero rearExtension for better visualization. This attribute is not applicable if a topWidth is applied to the dial.

Lets you define the border color for trend-arc.

Color of the trend point. The color of the text can be configured using Styles

Whether the trend point should be rendered as dashed lines.

Default value: 0 (trendline rendered using straight lines)

Sets the length of each dash when trend point is rendered as dashed lines.

Sets the gap between consecutive dashes when trend point is rendered as dashed lines.

Display label for the trend-point/trend-arc. If you do not specify a value, the chart displays the numeric value.

The ending value for the trend-point. Say, if you want to plot a trend-arc from value 102 to 109, the endValue will be 109.

In case of trend-arc, radius for inner side of arc.

Border color of marker.

Fill color of marker.

Radius of the marker.

You can define the tooltip for a marker using this attribute.

Radius for trend point/outer side of trend-arc.

If you're drawing a trend-arc, you can set its border on using this attribute.

The starting value for the trend-point. Say, if you want to plot a trend-arc from value 102 to 109, the startValue will be 102.

If you've opted to show the trend as a point, this attribute lets you define the thickness of trend line.

You can opt to show a triangular marker for each trend-point by setting this attribute to 1.

Whether to display the trend-point value inside the gauge?