PDF: Gauge Chart

ReportR: Gauge Chart


Add a gauge chart to the personalized PDF report to represent average or actual scores or percentage results for question blocks or formulas. Respondents can see at a glance if they've scored towards the top-end or bottom-end of the scale.

ReportR gauge example

Here's what we'll cover in this guide:

  1. Setting up the widget
  2. Widget logic rules
  3. Other available widgets

1 Setting up the widget

So let's get you creating a gauge chart!

1.1 Set gauge thresholds

After you've given a chart title that will be displayed above the gauge, we need to set thresholds. The values you set for the thresholds will determine the shading of the progress bar. Change the shading so that a higher score will have a different or brighter shade than a lower score.

PDF Gauge chart thresholds

1. Use the arrows to set the threshold value. This must be a number between 0 and 1. The values entered will be converted into percentages, e.g. a threshold value of 0.1 will cover the first 10% of the bar.


The values for the thresholds must be entered in order, starting with the lowest value (threshold 1) and increasing to the highest value.

2. Click the pencil icon to change the color of each threshold. The default shades would color the bar in red for the lowest scoring answers, yellow for mid-ranging scores and for top-scoring answers, the bar would be colored in green.


If a score is in between 2 thresholds, a mix of the 2 threshold colors will be shown on the gauge.

3. If you want more than 3 colors of the progress bar, that's no problem! Simply click add threshold and add as many as you require. Keep in mind that the threshold value must be between 0 and 1!

1.2 Other gauge settings

Once the colors of the bar have been set, it's time to specify the other settings of the gauge chart:

ReportR gauge chart dimensions

  1. Click Variables to access the drop-down menu of the variable which you want the gauge chart to be based on. There's a whole range of options - it could be the answer to a formula, question block score, custom score or very simply an answer to a particular question! Just make sure the variable is a numerical value otherwise the gauge chart will not work.
  2. Use the arrows or enter a value for the lowest and highest value of the bar. The minimum value will be shown under the gauge on the left-hand side, and the maximum value will be shown under the right-hand end of the bar. The Y-axis values can be any value you like (they do not have to be between 0 and 1 like the threshold values).
  3. Y-axis title - Name the progress bar. This title will show immediately on top of the bar, as opposed to the Chart Title which is displayed in larger letters above the Y-axis title.
  4. Set number of decimal places - Set this to 0 if you do not wish to show any decimal places. Otherwise choose how many decimal places you want, bearing in mind that too many decimal places are not so useful to the report reader. If you choose to show 3 decimal places for example, then the value 1.559247 would be displayed as 1.559.

Tip: To make advanced design changes to the gauge chart, use custom CSS.

1.3 Widget placement and size

Choose how you would like to align your gauge chart. You can choose to align it to one side and have explanatory text or another widget on the other side, or center it.

PDF Gauge chart placement

  • Left - widget will be aligned to the left side of the page, in a column layout
  • Center - widget will be presented centered across the entire page from the left to the right (full width)
  • Right - widget will be aligned to the right side of the page, in a column layout

If you would like a widget to appear side-by-side the gauge, make sure to set the widget aligned on one side of the page, and the gauge on the other. For example, choose to align the text widget to the left, and align a gauge chart to the right.

Take a look below at some different layout possibilities:

Use the arrows or enter a value for the chart height and width. If you choose to place the gauge chart on either the left or the right side of the page, the chart will be automatically resized.

PDF Gauge chart resize

Now if you want to show a gauge chart to all respondents, you're done! Just make sure to click save PDF and continue adding widgets. Check out section 3 to see all available widgets. 

2 Widget logic rules

If you want to only show this widget under certain conditions, it's time to set the widget logic rules. Click add rule and now select which condition from the drop-down menu should be used to decide when to show the widget.

PDF Pie chart logic rules

Once you've chosen the initial condition, you can specify exactly what conditions need to be met, for example the answer on question must be greater than a certain number. If you need a more complex condition, click on the white circle with a purple + sign to add criteria that will be in addition to the other criteria (AND), or instead of (OR).

ReportR spiderchart - widget logic rules

Tip: If you have set up outcomes, you can choose an outcome as the criteria for showing the widget. Choose outcome from the drop-down menu and then select what the outcome should or should not equal so that the widget will be shown. You can set the outcome as the only criteria, or as an additional criteria as shown below. In this example, we clicked the purple button and added that the widget should be shown if both the response on intro field criteria AND the outcome criteria is fulfilled.

PDF Text widget with outcome criteria

Once you've saved your logic rules, don't forget to save PDF and you're ready to add more widgets!

3 Other available widgets

Why not check out our other widget guides and learn how to add other types of content to your PDF?

  1. Text
  2. Image
  3. Table
  4. Page or Section Break
  5. Formula Ranking
  6. Custom Results by Respondent table
  7. Question block KPI
  8. Formula KPI
  9. Spider Chart
  10. Column chart
  11. Pie chart
  12. Bar chart
  13. KPI
Vincent is the author of this solution article.

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