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Specific Menu Items
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Options
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Graphics
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Mask Land
Mask Land
The mask land option option allows you to specify whether shading should appear over any areas representing land. For gridded
data, CPT creates maps by shading individual grid boxes. When the gridded data represent values such as sea-surface
temperatures, the shading of near-coastal gridboxes will extend over land by default. This shading can be prevented by
switching on the mask land option; after producing the basic map CPT will then shade all land areas in white so that colours
appear only over the sea. The option toggles the masking of the land on and off. A tick is indicated next to the menu item when
the masking option is on.
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