Browsing Video Dataset

Video map is a new form of map expression. It is based on video spatialization, utilizing computer vision technology to integrate virtual and real elements, enabling real-time geographic information visualization and intelligent geographic analysis. A video dataset can be added to a video map window, or played in a map or scene.

To overlay a video dataset with GIS spatial data for display, it must be registered first. For details, please refer to Video Registration.

Video Map

  1. Double-click a video dataset or use the Add to New Video Map/Add to Current Video Map option from the context menu to add the video dataset to a video map.
  2. Playback operations can be performed using the playback control bar below the video map:
    • Fast-forward/Rewind video: Click the fast-forward or rewind button on the control bar. By default, it skips forward or backward by 5 seconds each time.
    • Playback Speed: The playback speed can be adjusted through the speed drop-down list. Available rates include: 0.25, 0.5, 0.75, 1 (default), 1.25, 1.5, 2, 3, 4.
    • Set Play Parameters: Click the settings button on the control bar to pop up the Play Settings dialog box.
      • Increment: Sets the time interval for each fast-forward or rewind operation. The default is 5 seconds.
      • Unit: The unit for setting the step value, options are Seconds or Frame.
      • Loop Playback: Used to set whether to loop playback the video. If checked, playback will automatically start from the beginning after finishing; if unchecked, the video plays once and then stops.

Map

  1. A registered video dataset can be opened in a map. The method is: video dataset context menu -> Select Add to New Map or Add to Current Map.
  2. The display method of the video in the map changes with the map scale and map variation, sequentially appearing as a video point, video extent polygon, and video scene:
    Video Dataset Bounds Display Method
    p≤5% Point
    5＜p≤10% Video Extent Polygon
    P＞10% Reality Video
  3. Click the Map tab -> Browse -> Play Video option, which provides two methods: Play (Map) and Play (Layer):
    • Play (Map): Click this option to play all videos in the current map.
    • Play (Layer): Click this option to play the videos in the layer selected in the Layer Manager.

    After execution, the Play Video dialog box pops up, where a list displays the currently playable video layers. You can select whether to play them via checkboxes. A playback control bar is provided at the top of the dialog box for operations like fast-forward, rewind, and adjusting playback speed.

Note:

When playing video in a map, it is recommended to fully view the current video dataset bounds. Otherwise, the playable video dataset layers may not be displayed in the Play Video dialog box.

Scene

A registered video dataset can be displayed integrated with model data in a scene. The method to open it is: video dataset context menu -> Select Add to New Spherical Scene/Add to New Plane Scene or Add to Current Scene. You can play/pause the video layer via the Play, Pause, Stop options in the Scene tab -> Browse -> Play Layer drop-down button.