Update GMT argument in the azimuthal projections gallery to doc standards

examples/projections/azim/azim_equidistant.py

@@ -1,4 +1,4 @@
-"""
+r"""
 Azimuthal Equidistant
 =====================
 
@@ -8,11 +8,13 @@
 that lie within a certain distance or for comparing distances of different
 locations relative to the projection center.
 
-``elon0/lat0[/horizon]/scale`` or ``Elon0/lat0[/horizon]/width``
+**e**\ *lon0*\ **/**\ *lat0*\ [**/**\ *horizon*]\ **/**\ *scale* or
+**E**\ *lon0*\ **/**\ *lat0*\ [**/**\ *horizon*]\ **/**\ *width*
 
-``lon0/lat0`` specifies the projection center. The optional parameter
-``horizon`` specifies the max distance to the projection center (i.e. the
-visibile portion of the rest of the world map) in degrees <= 180° (default 180°).
+*lon0*\ **/**\ *lat0* specifies the projection center. The optional parameter
+*horizon* specifies the max distance to the projection center (i.e. the
+visibile portion of the rest of the world map) in degrees <= 180° (default 180°). The
+size of the figure is set by *scale* or *width*.
 """
 import pygmt
 

examples/projections/azim/azim_general_perspective.py

@@ -1,21 +1,24 @@
-"""
+r"""
 General Perspective
 ===================
 
 The general perspective projection imitates the view of the Earth from a finite
 point in space. In a full view of the earth one third of its surface area can
 be seen.
 
-``lon0/lat0/altitude/azimuth/tilt/twist/Width/Height/scale`` or ``width``
+**g**\ *lon0*\ **/**\ *lat0*\ **/**\ *altitude*\ **/**\ *azimuth*\ **/**\ *tilt*\ **/**\ *twist*\ **/**\ *Width*\ **/**\ *Height*\ **/**\ *scale*
+or **G**\ *lon0*\ **/**\ *lat0*\ **/**\ *altitude*\ **/**\ *azimuth*\ **/**\ *tilt*\ **/**\ *twist*\ **/**\ *Width*\ **/**\ *Height*\ **/**\ *width*
 
-``lon0/lat0`` specifies the projection center, ``altitude`` the height
+The ``projection`` is set with **g** or **G**.
+*lon0*\ **/**\ *lat0* specifies the projection center, *altitude* the height
 in km of the viewpoint above local sea level (If altitude is less than 10,
 then it is the distance from the center of the earth to the viewpoint in earth
-radii). With ``azimuth`` the direction (in degrees) in which you are looking is
-specified, measured clockwise from north. ``tilt`` is given in degrees and is the
+radii). With *azimuth* the direction (in degrees) in which you are looking is
+specified, measured clockwise from north. *tilt* is given in degrees and is the
 viewing angle relative to zenith. A tilt of 0° is looking straight down, 60° is
-looking 30° above horizon. ``twist`` is the clockwise rotation of the image (in
-degrees). ``Width`` and ``Height`` describe the viewport angle in degrees.
+looking 30° above horizon. *twist* is the clockwise rotation of the image (in
+degrees). *Width* and *Height* describe the viewport angle in degrees, and *scale*
+or *width* determine the size of the figure.
 
 The example shows the coast of northern europe viewed from 250 km above sea
 level looking 30° from north at a tilt of 45°. The height and width of the

examples/projections/azim/azim_general_stereographic.py

@@ -1,4 +1,4 @@
-"""
+r"""
 General Stereographic
 =====================
 
@@ -9,17 +9,11 @@
 It is often used as a hemisphere map like the Lambert Azimuthal Equal Area
 projection.
 
-``slon0/lat0[/horizon]/scale`` or ``Slon0/lat0[/horizon]/width``
+**s**\ *lon0*\ **/**\ *lat0*\ [\ **/**\ *horizon*\ ]\ **/**\ *scale*
+or **S**\ *lon0*\ **/**\ *lat0*\ [\ **/**\ *horizon*\ ]\ **/**\ *width*
 
-``lon0/lat0`` specifies the projection center, the optional ``horizon`` parameter
+*lon0*\ **/**\ *lat0* specifies the projection center, the optional *horizon* parameter
 specifies the max distance from projection center (in degrees, < 180, default 90).
-
-This projection can be displayed:
-
-* With map boundaries coinciding with longitude and latitude:
- ``region`` specified via ``xmin/xmax/ymin/ymax``
-* As a map with rectangular boundaries: ``region`` specified as lower left and
- upper right corner ``xlleft/ylleft/xuright/yurightr``. Note the appended ``r``.
 """
 import pygmt