FusionCharts 3.15, which was recently released, adds three new data chart types, as well as other improvements and updated documentation. More information can be found in the changelog.

as well as some interesting and well-explained examples! Let’s get started!

## Chord Diagram

A chord diagram is an interesting way to represent weighted relationships or dependencies in a radial layout. Elements (or nodes) amongst which the weighted relationship exist are drawn on the circumference, whereas the actual weighted relationship is drawn as links in the circular space of the chord diagram.

In addition to visualizing relationships, the magnitude of each connection is also shown as a flow or movement. For example, the migration of people from one country to another, or the subscribers switching telecom operators. The essence of a chord diagram is in knowing which is the dominant relationship and one can toggle to narrow focus on the most important relationships. It can be used to show comparisons and relationships.

## Sankey Diagram

The Sankey diagram is very helpful to represent the flow in a system. The flow happens between relatable entities and is represented by colored links. Also, the flow could be of any measurable quantity – material, cost, energy, etc, from one node (or entity) to another. It can be drawn in different layouts and gives a quick understanding of the flow balance in the system. You can use it to depict the energy flow in a system, or resource flow among members, or import/export among countries, etc.

A Sankey diagram puts a visual emphasis on the major transfers or flows within a system to help capture attention on the most important flow. They also help locate dominant contributions to an overall flow. The primary function of the Sankey diagram is to represent flow, process, and proportions.

## Sunburst Chart

The Sunburst chart can be used to visualize relationships within hierarchical data. It shows the hierarchy through a series of concentric rings, where each ring corresponds to a level in the hierarchy. Each ring can have multiple segments, with each segment showing the contribution of a particular dimension in that hierarchy.

Focusing on a segment in the ring gives a sense of the part to the whole relationship of this dimension to its parent ring segment.

Furthermore, the Sunburst chart is the most effective in showing how one ring is broken into its contributing pieces (i.e, sequential segments). Any data with a rich categorization on any measurable quantity can be easily visualized using a Sunburst chart. It can be used to represent the hierarchy in data and for part-to-a-whole analysis.

## More Chart Goodness!

• Improved box and whisker charts: This release includes multiple improvements to the current box and whisker charts likeability to process large data, scroll bar support along with control to specify the number of plots visible in chart view, and styling options for mean, median, and standard deviation icons, etc.
• Added 31 new maps: From Ukraine to Hungary and Tanzania to Finland we have added over 31 maps to make it easy for you to visualize data. Learn more about them here.
• Legend API event fixes: For legend roll-over and roll-out events data object was returning an incorrect value which has been fixed now.
• Multiple improvements and fixes in the treemap, pie/doughnut, and radar charts: This release includes multiple improvements to the treemap chart like the ability to control the height of the navigation bar after drill down, pie and doughnut charts like tooltip styling and macro fixes and improved canvas space usage, and radar charts like long label support and better label management, etc.

## Coming Soon

• 📐 Legend improvements
• ℹ️ Flutter component

Do you have any suggestions for FusionCharts? We’d love to hear from you. Drop us an email at [email protected].

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