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Metview Macro Library function. Used to plot a straight line onto a non-cylindrical map projection. Internally, the line is split into a number of segments and the returned result is an Input Visualiser object which can be passed to the plot() command along with an optional Graph Plotting object.
Usage
fieldset definition mvl_geoline(lat1 : number, lon1 : number, lat2 : number, lon2 : number, incrm : number)
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