Mapping

Customizing axes
Grid lines and labels
In order to get the perfect grid, you may
want to experiment with different grid
options.
Two functions are useful here, m_grid
which draws a grid, and m_ungrid
which erases the current grid (but
leaves all coastlines and user-specified
data alone). Try
m_proj('Lambert');
m_coast;
m_grid;
to get a Lambert conic projection of North
America.
Now try m_ungrid
The coastline is still there, but the grid has
disappeared and the axes shows raw
X/Y projection coordinates
15 o N
0.6
0.4
0.2
175 o W
0
-0.2
-0.4
-0.6
30 o N
45 o N
150 o W
60 o N
75 o N
125 o W
100 o W
75 o W
-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
50 o W