You can find instructions for accessing settings for Need4viz graphics: Format Custom Element.
For the Hemi gauge, the available parameters are:
Extended parameters
Global
Title of the chart : This common parameter is described here →
Chart title
Background color : This setting allows you to choose the type of colorization for the background of the graph. Several styles and colors are available.
Thousand separator : This setting allows you to define a thousand separator between space, comma or dot for all the numerical values of the graph.
Animation : This setting allows you to choose the type of animation sought during the initial display of the graph.
Options
Gauge angle : This setting allows you to define the start and stop angles of the gauge.
Arc : This setting allows you to define the thickness and stroke of the desired arc.
Needle : Set here the design (shape, length, width, color and stroke) of the needle
Arc ticks : This setting allows you to choose the approximate number of ticks to display on the gauge as well as the writing style and color of the label & ticks.
Labels
Value label : You can set here the measure font size, the label value (instead of the dimension value), its font and adjust its vertical position in the chart
Arc feet titles : This setting allows you to titrate the right and left feet and to define the font size.
Measure
Measure of the gauge : This setting allows you to specify the unit to add as a measurement prefix or suffix as well as the measurement accuracy.
Title of the value : This setting allows you to define the text and format of the title that you can display inside the gauge. It also allows you to hide it or not.
Ranges
Gradient : Use here a gradient color for all ranges (instead of marked colors)
Range 1,2… 5 : This setting allows you to define a minimum and maximum interval for the zone as well as its color and a possible label to display in the middle of the area. Values min/max are ignored if they are fed as input measures. Only enter the min values of the zones to use (e.g. if you want to create a 3-zone gauge, do not fill in the values of zones 4 and 5)
Max value: Enter the maximum value of the gauge here (max value of the last zone used).
Export SharePoint :This common setting is described here → Export SharePoint
Export HTML :This common setting is described here → Export HTML
Export FTP :This common setting is described here → Export FTP