Projection

This section describes the “Projection” controls for plotting.

The grid generation application supports the following projections for plotting of the model grid and other information:

• Nearside Perspective

• Mercator

• Lambert Conformal Conic

• Stereographic

Please see Cartopy projection list for more details on these projections.

The gridtools library attempts to conform to Proj terminology for setting projection parameters such as latitude of true scale.

Here is a comparison of Cartopy mapping parameters to parameters for use with Proj and Gridtools:

Cartopy	Proj	Gridtools
central_latitude	lat_0	lat_0
central_longitude	lon_0	lon_0
false_easting	x_0	x_0
false_northing	y_0	y_0
standard_parallels	lat_1, lat_2	lat_1, lat_2
latitude_true_scale	lat_ts	lat_ts
scale_factor	k_0	k_0
satellite_height	h	satelliteHeight

A “Plot” button is provided on each control to update the plot to the right after making any adjustment.

See also: setPlotParameters().