Configure sorting of legend items

Scenarios

Many trendlines exist
The display names of trendlines are difficult to distinguish.
The chart is a Top K chart. This scenario is applicable to a flow chart (Pro).

Prepare data

Execute the following statement to count the number of each request method per minute:

* | select __time__ - __time__% 60 as minute, count(1) as c,  request_method group by minute, request_method order by minute asc limit 100000

Chart Types: Set the parameter to Flow ChartPro.

Configure sorting

On the General Configurations tab, click Legend Configurations and configure the Sorting Order parameter.

1. By default, the Sorting Order parameter is set to No Sorting. In this case, data is displayed in a chart based on the order calculated by the system.

Display order: DELETE > GET > POST > PUT > HEAD

2. If you set the Sorting Order parameter to Ascending, the system calculates the maximum value of each line in the current time range and displays data in a chart based on the ascending order.

Display order HEAD > DELETE > PUT > POST > GET

3. If you set the Sorting Order parameter to Descending, the system calculates the maximum value of each line in the current time range and displays data in a chart based on the descending order.

Display order: GET > POST > PUT > DELETE > HEAD

Top K in a flow chart (Pro)

1. Set the K field. On the General Configurations tab, click Data Configuration and configure the Maximum Categories parameter.
2. Configure sorting of legend items. On the General Configurations tab, click Legend Configurations and configure the Sorting Order parameter.