Bubble Overlay Chart
Like the bubble chart, the bubble overlay chart is used to observe the relationship between data points, with the dimension of the marker to allow comparison between 3 variables rather than just 2, plus an overlay map to indicate the location of the markers.
To create the bubble overlay chart, 2 sets of dataset and a map are required. One set of dataset is used to show the relationship and another set of dataset is used to indicate the XY location on the map.
The following is a list of the fields in the View Properties box in the dashboard designer for bubble overlay chart. There are some required fields to be set for each created view.
Do note that the overlay image is unable to be displayed properly in Safari browser.
Basic Properties
The View Properties fields vary in different charts. Below are the basic properties in the View Properties box.
Field | Description | Mandatory |
---|---|---|
View Type | Type of chart, table or view. | Yes |
Title | Name of the view. | No |
Dataset | Data used for the chart, table or view. | Yes |
Subset | Partial data from a dataset used for the chart, table or view. | No |
Group | Places the output of the dataset/subset into separate groups or data traces based on field selected. | Yes |
BubbleId | BubbleId groups the output into separate groups based on the selected value. | Yes |
Value | Used as main output point. Determines the size of each portion based on the selected “Aggregation”. |
Yes |
Aggregation | Data aggregation refers to the accumulation of the data by count, average, or summation. By default, count is selected. |
Yes |
Radius | Defines the field to display as the bubble against the fields in the X and Y axes. | Yes |
Radius Aggregation | Determines the operation to be applied on the values in the “Radius” field. Depending on the field type of “Radius”, the options available may vary. Possible options are count, average, and/or summation. |
Yes |
Overlay | Defines the location or link of the overlay map. | Yes |
Bubble | ||
Dataset | Data used for the chart, table or view. | Yes |
Subset | Partial data from a dataset used for the chart, table or view. | No |
Id | Defines the key that corresponds to the BubbleId defined from the first dataset. | Yes |
Label | Defines the label of the bubble. | No |
Description | Brief description of the label. | No |
X | X values be set on the X axis. | Yes |
Y | Y values be set on the Y axis. | Yes |
Radius | Defines the field to display as the bubble against the fields in the X and Y axes. | Yes |
Radius Aggregation | Determines the operation to be applied on the values in the “Radius” field. Depending on the field type of “Radius”, the options available may vary. Possible options are count, average, and/or summation. |
Yes |
Colour | Selects the field that defines the colour scheme for the markers. By default, this field is not selected. |
No |
The dataset and subset data derive from Dataset Management. Choose the right chart from the View Type and data points to build a view. Also, be consistent in using the color scheme and formatting.
Other Properties
The other property fields are available to enhance the view. Below are the other properties in the View Properties box for the bubble overlay chart.
Field | Description | Default |
---|---|---|
Controlled By | Links dashboard controls to the view. One or more controls can be added to affect the data displayed on the view. |
Empty |
Colour Scheme | Determines the color palette used for the view. | Default |
Colour | Selects the field that defines the colour scheme for the markers. | Not selected |
Max Bubble Size | Maximum size of the bubble. | 30 |
Min Bubble Size | Minimum size of the bubble. | 10 |
Legend | Chooses the chart legend visibility in the Legend properties as well as how you want to display the legend. The legend orientation displays either in vertical or horizontal order. | Selected |
Hover Template | Customise the content shown when hovering over the view. | Empty |
Click to Page | Adds a link to another view. | Empty |
Click to Page Tip | Adds a brief description of the link above. | Empty |
Maximisable | If selected, places a maximise button on the top right of the view (when not in edit mode). This will maximise the view to fill the browser. |
Not selected |
Margins | Allows adjusting margins and padding between charts and grid. | Default settings |
Advanced | Add a special CSS class, data script and/or layout overview to the view. | Empty |
Config Options | Config Options consists of the following: - Scroll Zoom - allows the mouse wheel to zoom in/out of the chart - Display Modebar - controls whether the bar of icons at the top right of the chart should appear always, never or only when hovering over the chart - Hide Modebar buttons - chooses which buttons (icons) to include in the Modebar |
Default settings |