... plot^1.1

However, it is suppressed when a 3-D view is selected.

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... mode^1.2

For historical reasons, the GMT Default is Landscape, see gmtdefaults to change this.

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... plots^1.3

ensures that boundary annotations do not fall off the page

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... database^1.4

Wessel and Smith [1996]

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... inch)^2.1

PostScript definition. In the typesetting industry a slighly different definition of point (1/72.27 inch) is used.

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...tbl:surface^3.1

The -A option is necessary for geographic grids since x_inc shrinks with latitude. Rule of thumb: set aspect = cosine of the average latitude.

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