Analysis server configuration

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DataInsights currently provides two spatial analysis methods, Standard Spatial Analysis and Distributed Spatial Analysis. Standard Spatial Analysis includes: buffer, isoline, isosurface, overlay, Thiessen polygons and IDW interpolation analysis. Distributed Spatial Analysis includes: aggregate points, summarize attributes, density, reconstruct tracks, overlay, buffer, build region grid, etc.

Before using iServer-based spatial analysis tools, ensure that your iServer obtains extension module of spatial analysis service and has configured the server in iPortal by the administrator. According to the analysis function you use, you can choose to configure the standard spatial analysis server or the distributed spatial analysis server. The specific operations of each server configurations are as follows.

Standard spatial analysis server configuration

The standard spatial analysis supports client-side spatial analysis and SuperMap iServer-based spatial analysis. Among them, client-side spatial analysis functions do not rely on server analysis,thus they can be used without configuration. They applies to fast analysis of small amount of data.

The iServer-based spatial analysis functions are more efficient and apply for analysis of large amount of data，these require the use of iServer's spatial analysis tools. The steps to add the iServer analysis server in iPortal are as follows:

Login to the iPortal Home> Management > Site Configuration > Support Service >Support Service page with your administrator account and select the "Spatial analysis service" tab:

  1. In the "The service URL" input box which is under "Standard spatial analysis service", enter the available iServer spatial analysis service address, for example: http://ip:port/iserver/services/spatialanalyst-xx/restjsr/spatialanalyst.
  2. If the spatial analysis service published in iServer is protected, you need to enter the token in the token input box. For the method of obtaining the token, please see: Obtain the Token.
  3. Click "Save" to apply the changes.

Note:

DataInsights currently supports standard spatial analysis of data in formats of Excel, CSV, GeoJSON, JSON, and SHP.

Distributed spatial analysis server configuration

The distributed spatial analysis functions of DataInsights are based on the distributed analysis service of SuperMap iServer. SuperMap iServer distributed analysis service supports big data analysis，provides GIS distributed analysis and processing capabilities based on Spark computing platform. You can use distributed spatial analysis when you need to perform big data analysis in DataInsights such as aggregate points, summarize attributes, density, reconstruct tracks, overlay, buffer, build region grid, etc.

Before using the distributed analysis service in DataInsights, ensure that iServer has configured the extension module of distributed analysis service, and iPortal has added an iServer server with distributed analysis service.

After enabling the distributed analysis service in SuperMap iServer, the steps to add the iServer distributed analysis server in iPortal are as follows:

Login to the iPortal Home > Management > Site Configuration > Support Service > Support Service page with your administrator account and select the "Spatial analysis service" tab:

  1. In the "The service URL" input box which is under "Distributed  spatial analysis service", enter the iServer distributed analysis service address, for example: http://ip:port/iserver/services/distributedanalyst/rest/v1/jobs
  2. If the service is protected, you need to enter the token in the token input box. For the method of obtaining the token, please see: Obtain the Token.
  3. Click "Save" to apply the changes.

Note:

  1. DataInsights currently supports distributed spatial analysis of CSV, Excel, GeoJSON formatted data, registered user-managed HDFS data.
  2. When performing distributed spatial analysis on data in Excel, CSV, and GeoJSON format, the hosting iServer, relational storage iServer, and the distributed analysis iServer need to be the same SuperMap iServer.
  3. For distributed analysis of registered HDFS data, the hosting iServer and the distributed analysis iServer need to be the same SuperMap iServer.

For the configuration of the hosting server, see: adding a server and hosting server. For configuration of relational storage, see: Hosted data storage configuration.