The SetProjection command sets the default projection of m.

This projection is the one that is used by default when calling Display, and when printing a world map object. It is also the projection that is considered when using ResetView.

proj must be the name of a valid projection (see the full List of Projections), optionally including parameters if applicable (for example, CylindricalEqualArea(37.5)).

$m≔\mathrm{DataSets}:-\mathrm{Builtin}:-\mathrm{WorldMap}\left(\right)$

$m≔\left(\begin{array}{cc}\left[\mathrm{PLOT}\left(\mathrm{...}\right)\right]& \begin{array}{c}\mathrm{A\; map\; of\; the\; world}\\ \mathrm{projection:\; MillerCylindrical}\end{array}\end{array}\right)$

$\mathrm{SetProjection}\left(m\,\mathrm{LambertAzimuthalEqualArea}\right)$

$\left(\begin{array}{cc}\left[\mathrm{PLOT}\left(\mathrm{...}\right)\right]& \begin{array}{c}\mathrm{A\; map\; of\; the\; world}\\ \mathrm{projection:\; LambertAzimuthalEqualArea(0,0)}\end{array}\end{array}\right)$

$\mathrm{Display}\left(m\right)$

The DataSets[Builtin][WorldMap][SetProjection] command was introduced in Maple 2017.

For more information on Maple 2017 changes, see Updates in Maple 2017.