SuperMap iDesktopX
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    Multiple Tile Versions

    Function Description

    Generally, different tile versions represent different information on the same area but different times. iDesktop can generate multiple tile versions to manage temporal data. iDesktop can display different versions of tiles to present a dynamic effect that geographic data changes with time.

    Traditional tiles only can display the spatial information on an area in a fixed time. Compared with the traditional tiles, the multiple tile versions add the time element. The changes in geographic features or a phenomenon over time can be presented, which can help us to analyze their development.

    Features of multiple tile versions

    • Each version has a unique name specified by the user when generating tiles. The application can identify each tile version by their unique names.
    • Multiple tile versions must be saved in a MongoDB database.

    Generate multiple tile versions

    We can use the way we create traditional tiles to generate multiple tile versions. The following content details how to create a task to generate multiple tile versions.

    1. Right-click on your map and select Map Tile (Single-task) > Create New Task > Next to open the dialog box Generating Map Tile.
    2. In the dialog box, you need to set some parameters. For details, please refer to Generate map tiles (single task). Please note that:
    3. Storage Type: Set the storage type to “MongoDB (Multi-version)“.
    4. Version Name: Specify a unique version name to create a new tile version. If you select a name from the drop-down list, the application will update the selected version.
    5. All versions to be managed uniformly need to use the same configuration file name and the same database. Names of all tiles in different versions must be the same. Every version must use the same database.
    6. Scales and index ranges must be consistent in different versions in case of errors produced in the results.
      CacheOutputSetting
    7. After all settings, click Run to generate tiles.
    8. And now you finish the generation of one tile version. Please repeat the above steps to generate all other tile versions.

    Sample Application

    Generate multiple tile versions from road data at different times in an area. Then overlay these map tiles together and show only one tile version with other tiles’ background transparent in a certain time. After that, you can observe the traffic changes over time by adjusting the times.

    Generate Map Tiles

    Generate Map Tiles (Single-task)

    Generate Map Tiles (Multi-task)

    Efficiency Comparisons of Multiple Tasks