CoastWatch Master Tool Help: Using the toolbar
You can use the toolbar buttons to change projection and
region parameters by clicking and dragging on the master view.
Each tool modifies the master parameters in a different way:
Magnify
- Decreases the region pixel size by a factor of 2 in both
width and height. This has the effect of defining a smaller
earth area in the master.
Shrink
- Increases the region pixel size by a factor of 2 in both
width and height. This has the effect of defining a larger
earth area in the master.
Zoom
- Allows you to select a rectangular area on the master view.
The rectangle is used to derive a new region center location
and pixel size.
Pan
- Allows you to click and drag the master view. The final
position is used to derive a new region center location.
Recenter
- Allows you to select a new region center location.
Reset
- Resets all projection and region parameters to the default
values: a Mercator projection centered on the US. Use this to
get back to a sane set of master parameters.
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