Arc Column Chart

Application Scenario

The arc column chart is a variant of the general column chart. Essentially, the arc column chart is a column chart with the internal Cartesian coordinate system transformed into the polar coordinate system.

The following figure shows the effect.

Function Description

You can customize the color and style of the graphics.

You cannot set the dynamic playout. 

Plugin Installation

You can download the plugin: Extended Chart. 

For details about how to install the plugin in the designer, see Designer Plugin Management.

For details about how to install the plugin on the server, see Server Plugin Management.

Data Preparation

Create a general report and create a dataset named ds1. The database query statement is SELECT * FROM Sales_Volume.

Chart Insertion

1. Merge and right-click required cells, choose Cell Element > Insert Chart > Extended Chart - Column > Arc Column Chart, and click OK, as shown in the following figure.

Data Binding

Bind the data to the arc column chart, as shown in the following figure.

By default, the Sort item is set to Order, meaning that the data is sorted from largest to smallest.

Note: 

1. You are advised to preview this chart using Google Chrome on a high-performance computer.

2. The negative value (if any) will be considered as the corresponding absolute value in graphing and sorting. For example, if all data values are negative, the smallest value in the data corresponds to the longest arc column. 

Style Setting

The style settings include Title, Axis, Background, Graphics, Label, and Prompt, which is similar to the style settings of a general column chart.

Title

For details about the title, see Chart Title.

Label

For details about the label, see Chart Label.

Graphics

The graphics settings include Color and Style.

1. Color

Style: You can set the color style of the column chart, including Default (no gradient), Auto Gradient, and Custom Gradient.

Color Scheme: You can set the color scheme only after you select Default or Auto Gradient as Style. 

You need to manually adjust the gradient color after selecting Custom Gradient as Style, as shown in the following figure.

2. Style

Category Interval: Refers to the interval between two adjacent columns.

Core: Refers to the ratio of the radius of the inner circle to the radius of the outer circle.

The following figure shows the corresponding effect of the two setting items.

Value Axis

Value Axis: When Custom Maximum and Custom Log Base are deselected, the arc value corresponding to the largest column is 270 degrees for optimal display. When Custom Maximum is selected, the arc value corresponding to the largest column is 360 degrees.  

Background

You can set the fill color and opacity of the background. The smaller the opacity value is, the more transparent the background will be.

Prompt

For details about the prompt, see Chart Prompt.

Effect Display

Save the report and click Pagination Preview. The following figure shows the preview effect.

Note: 

The effect cannot be previewed on mobile terminals.

For details, you can download the template Arc Column Chart.cpt