Spatial Display
The Spatial Display grid display can be used to display time series of any type: scalar, polygon or grid. The display will depict the data on a map background. The display time is then set using a ruler that can be moved manually or made to move automatically.
The spatial display consists of following components:
- Spatial Display selection filters
- Control Toolbar with following options:
- Manual zoom and zoom previous buttons
- Predefined zoom range selector
- Play, pause, stop, step forward, step backward and record buttons
- Time slider with time slice indicator
- Data availability and maximum value indicator
- Moving average slider
- Legend
- Contours button
- Export time step data in ascii grid-file
Grid display selection filters
The selection filters show which displays have been configured. Select a filter to display the data. Note that each grid display may be configured differently, i.e. with a different period of data to be displayed, with a different background map, etc. The configuration allows filters to be highlighted in bold.
Control Toolbar
The toolbar provides the controls for displaying the spatial information via through the following buttons:
Button |
Description |
|
Play . Starts continuous play mode. The slider will indicate the time slice being shown. |
|
Pause . Stops continuous play mode. The time slider remains at the time displayed at the moment. |
|
Stop . Stops continuous play mode. The time reverts back to the start time.. |
|
Step backwards . Moves the time slider back one timestep. |
|
Step forwards . Moves the time slider forwards one timestep. |
|
Record . Creates an AVI movie file. After opening the file, the display will start playing from the current time position, until the stop button is clicked. |
Time slider |
The time slider can be dragged to specific time slice. |
Data availability |
The data availability indicator provides a visual cue as to where you can find data. For those times where data is available, the colour of the data availability indicator will be set to the maximum value found in the data for that time slice. |
For the functionality of the zoom buttons is referred to the FEWS Explorer section (see 2.2).
Moving Average Slider
The moving average slider can be configured to allow the user to select a number of moving average settings. Each moving average window is then recalculated for the entire period.
Legend
The legend identifies the colour used for each range of values.
