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Adaptive Resolution

*** For this McIDAS-V 1.5 release adaptive resolution is still under development so there may be bugs and there could implementation changes in the future. Adaptive resolution is currently available in the Gridded Data, Point Observations, General Files/Directories, and the Under Development > Imagery - Satellite choosers. Because it's still under development, adaptive resolution is disabled by default. In order to use adaptive resolution, it must be enabled through the Display Window tab of the User Preferences.***

Adaptive resolution is a feature designed to load high resolution data efficiently by obtaining and loading only the minimum amount of data needed to display all of the observable features in the given display size and geographic domain. If the domain is subsequently changed by using either Shift+left-click+drag or the Projections menu, adaptive resolution automatically reloads the data at a higher resolution (if available) if the user zoomed in to a more detailed view, or reloads the data at a lower resolution (sampled) if the user zoomed out to a wider view.

If the data is sampled, it is indicated in the Legend of the Main Display, where a line similar to 'Data Sampling: every 3rd pixel' or 'Data Sampling: every 4th by 5th grid point' appears below the layer label. If the data is displayed at full resolution, then no data sampling text will be written. In the example below, the data is sampled is every 3rd grid point in the x direction by every 2nd grid point in the y direction. The sampling text is controlled by the resolution macro in the Extra Legend Labels field of the Properties Dialog for the layer.

Image 1: Legend of Main Display Window
Image 1: Legend of Main Display Window

The AR Off/On popup appears when the Resolution Control button Resolution Control Button is clicked. This button has two options:

There are four ways of setting adaptive resolution on or off:

Currently, these are the data sources that are capable of using adaptive resolution:


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