Enable time for data
Use the player to display Temporal Data that changes with time. Time must be enabled for the Temporal Data layer and the time attribute must be set. The following is a detailed description of the setting:
Operating instructions
- After Temporal DataAdd to Map, click " Map" tab-> " Browse" group-> " Temporal Data" button to enter Temporal Data Display Mode, and the player will appear in Map. As shown in the following figure:
Figure: Layer Player - Click the "Settings" button on the right side of the play bar to pop up the "Play Settings" dialog box, where you can set the Data Time and Layer Play time.
Image: Play Settings - Manage layer list: First load the data layer, click the "Add" button, and select Data in the pop-up "Select" dialog box to add to the layer list. Multiple data layers can be added. Set the time attribute of the layer in the layer list area.
- Layer activation time: In the layer list, there is a check box in front of each layer. Check the check box to indicate the layer activation time. When playing and displaying, the corresponding layer will calculate the Take in Play parameter and display the Take in Play; If the check box is not checked, the layer is not enabled for time, and the corresponding layer will not calculate the parameters of Take in Play and display the final play.
- Specify time field: Temporal Data can have a time field to record the time point of data observation, and can also have two time fields of start and end to record the time range of data observation. Therefore, the following settings are made according to the specific situation:
- The data contains a time field to which both the start and End Time Field can be specified.
- The data contains fields for two time fields that specify Start Time and End Time.
Note: The time field specified above must be of date type. If not, see the Handling of time fields .
- Data Time Step: Temporal data is generally collected at fixed time intervals, such as every hour or every day. Data Time Step is used to specify the length of the Temporal Data interval. Here, the Data Time Step of the layer is used to present the Data Time Step feature of the data and to calculate the default value of the Time Step of the data displayed by the player; If the map contains multiple time-enabled layers and the Data Time Steps of the layer data are different, the Time Step of the display data of the player will take the minimum Data Time Step by default.
- After completing the Time Property Settings of the layer, you can play the enabled time data in the display map. Next, you need to set the playback parameters. Please refer to the Play Temporal Data for details.
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