Overview
Version
Report Server Version |
11.0 |
Application Scenario
The flow map displays the movement from one location to another and the quantity of information items or objects on the map. The following figure shows the effect.
You can use it to demonstrate the migration data of persons, animals, and products. The scale or quantity of each movement is represented by the thickness of each flow line, which helps to display the geographic distribution of migration.
The flow map is widely used to display interregional trades, traffic flow, population migration, shopping behavior, communication information flow, and air routes. It can also be applied to enterprise cargo transportation and supply chain management.
Note:
Chart Feature
Advantage: The flow map has cool special effects to display excellent effects, and unique big data mode to support hundreds of thousands of data.
Disadvantage: The flow map is not suitable for displaying sizes, comparisons, or trends of values.
Example
Data Preparation
Create a general report and create a built-in dataset Flow Map, which records Source (including the latitude and longitude), Destination (including the latitude and longitude), and Amount of People, as shown in the following figure.
Chart Insertion
1. Adjust the paper size under Template > Page Setting to display the map on one page.
2. Merge required cells, select the merged cell, click in the toolbar to insert the chart, choose Map > Flow Map, and click OK, as shown in the following figure.
Map Design
Select the chart, click the Cell Element icon on the right property panel, and set the attributes (Type, Data, Style, and Special Effect) for the chart.
1. GIS Layer Setting
Select Type, select China as Map Point, and set GIS Layer to Dark Blue.
Note:
Data Binding
The settings for data binding in Flow Map include:
Setting Item | Description |
Data Source | |
Geographic Information | There are two ways to match geographic information: Area Name and Lat/Long.
|
Start Longitude | The longitude information field of the starting point in the dataset needs to be bound. |
Start Latitude | The latitude information field of the starting point in the dataset needs to be bound. |
Start Area Name | The Area Name field of the starting point in the dataset needs to be bound. |
End Longitude | The Area Name field of the starting point in the dataset needs to be bound. |
End Latitude | The latitude information field of the ending point in the dataset needs to be bound. |
End Area Name | The Area Name field of the ending point in the dataset needs to be bound. |
Series Name Using | Field Name is used by default. For Field Name and Series Name, you can select the field in the dataset that represents the flow quantity. The Summary method is set to Sum by default. |
This document will demonstrate the two methods of geographic information matching separately. You can select one of them:
Area Name
Bind the data to the map, as shown in the following figure.
Click the setting icon on the right side of Start Area Name and End Area Name to customize the area name matching relationship.
Note:The following figure shows the matching relationship for Start Area Name.
The following figure shows the matching relationship for End Area Name.
Lat/Long
Bind the data to the map, as shown in the following figure.
Map Series Setting
Several unique settings in the series style settings of flow map are shown as follows:
Setting Item | Description |
Curve |
|
Big Data | Big Data Mode is suitable for scenarios with a large amount of data, which is disabled by default. When Big Data Mode is enabled, the Animation effect is automatically off. |
Animation | The flow animation effect from the starting area to the ending area. You can set Type to Default or Custom Image, such as an airplane image or other custom images. |
In this example, the specific settings of the series are shown in the following figure, where Value is selected as Color Section and Area Gradient as Color Type, dividing its range into two parts based on the data in the data set.
Note:Effect Display
Save the report and click Pagination Preview. The section "Application Scenario" shows the effect.
Style Extension
Flow Map - 0 for Line Width
Based on the above example, set Line Width of the map under Style > Series > Curve to 0, as shown in the following figure.
Save the report, and the following figure shows the preview effect.
Flow Map - Custom Image
Based on the above example, set Line Width of the map under Style > Series > Curve to 1, set Animation > Type to Custom Image, and adjust the width and height of the image to make its size proportionate, as shown in the following figure.
Click to download the image: Airplane.zip
Save the report, and the following figure shows the preview effect.
Template Download
Click to download the example template.
