The Chart.js Bubble Chart macro can show several data sets of bubbles. The bubbles of each data set have a different color, indicated by the legend above the matrix. Each bubble is based on three values, its x-coordinate, its y-coordinate and its radius. A mouse-over tooltip shows these three values and the data set name it belongs to.
Adding the Macro
- Edit your page.
- Select “+” => Other macros
- Type in “Chart.js” in the Search box
- Select the “Chart.js Bubble Chart” macro
- Enter and select the options of the macro
- Click Insert
- Put your data table in the macro body
- Save the page
|Chart ID||Enter a unique identifier for this chart on your page. If you use more than one Chart.js chart on your page, make sure that each one of them has a different Chart ID. Use no blanks or special characters.|
|Show Title||Switch on or off the display of the chart title. If switched on (default), the title is shown above the chart’s matrix as shown in the screenshot above: “My Chart.js Bubble Chart”.|
|Chart Title||Enter the title of the chart. You can chose to display it or not by the “Show Title” checkbox.|
|Chart Width||This value defines the width of the chart block. The chart itself will adjust to this size. You can enter a pixel (e.g. “500px”) or a percentage (e.g. “100%”) value. A pixel value will make the block exactly that size, a percentage value refers to the parent block, e.g. a Confluence page section. The default is “500px”. Enter the value without the quotes.|
|Chart Border Width||The chart can have a border if you want so. Enter the size of it here in pixel. Enter just the number without the “px”, e.g. “1”. The default is “1”. Enter the value without the quotes.|
|Chart Border Color||If you chose to display a border around the chart, you can enter the color of it here. Enter the hex value of the color starting with a “#”, e.g. “#d7d7d7”. Enter the value without the quotes.|
|Bubble Border Width||The bubbles can have a border if you want so. Enter the size of it here in pixel. Enter just the number without the “px”, e.g. “1”. The default is “1”. Enter the value without the quotes.|
|Bubble Hover Border Width||When you hover a bubble with your mouse its border width can be changed in size with this value. Enter the size of it here in pixel. Enter just the number without the “px”, e.g. “2”. The default is “2”. Enter the value without the quotes.|
|Aspect Ratio||With this option switched on, you can force the height to be the same as the width of the chart (square display).|
|Show Legend||Select whether you want to show the legend or not.|
|Legend Position||Select where to show the legend.|
|Show Tooltips||Select whether you want to show the tooltips when hovering a bubble or not.|
|Show Data Table||Select whether you want to show the data table of the macro body in the page view or not.|
The macro requires a table with your data in the macro body. It needs to follow a certain format. Here is an example used for the above screenshoot:
The table must have a header row. It serves a visual purpose only though and the macro will ignore it.
The table must have at least 5 columns. You can add more if you want for your own purposes but the App will only read the first five and interprete them as follows. Each row represents one bubble.
|The data series name of this bubble. All rows for one series must be underneath each other (grouped).||The x-ccordinate of the bubble||The y-ccordinate of the bubble||The radius of the bubble in pixel||The color of the bubble. You can either enter “random” for a random color or one of the web color names.|