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examples/projections/azim/azim_equidistant.py

@@ -1,21 +1,21 @@
-"""
-Azimuthal Equidistant
-=====================
-
-The main advantage of this projection is that distances from the projection
-center are displayed in correct proportions. Also directions measured from the
-projection center are correct. It is very useful for a global view on locations
-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``
-
-``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°).
-"""
-import pygmt
-
-fig = pygmt.Figure()
-fig.coast(projection="E-100/40/4.5i", region="g", frame="g", land="gray")
-fig.show()
+"""
+Azimuthal Equidistant
+=====================
+
+The main advantage of this projection is that distances from the projection
+center are displayed in correct proportions. Also directions measured from the
+projection center are correct. It is very useful for a global view on locations
+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``
+
+``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°).
+"""
+import pygmt
+
+fig = pygmt.Figure()
+fig.coast(projection="E-100/40/4.5i", region="g", frame="g", land="gray")
+fig.show()

examples/projections/azim/azim_general_perspective.py

@@ -1,33 +1,33 @@
-"""
-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``
-
-``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
-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.
-
-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
-viewing angle is both 60°, which imitates viewing with naked eye.
-"""
-import pygmt
-
-fig = pygmt.Figure()
-fig.coast(
-    projection="G4/52/250/30/45/0/60/60/5i",
-    region="g",
-    frame=["x10g10", "y5g5"],
-    land="gray",
-)
-fig.show()
+"""
+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``
+
+``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
+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.
+
+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
+viewing angle is both 60°, which imitates viewing with naked eye.
+"""
+import pygmt
+
+fig = pygmt.Figure()
+fig.coast(
+    projection="G4/52/250/30/45/0/60/60/5i",
+    region="g",
+    frame=["x10g10", "y5g5"],
+    land="gray",
+)
+fig.show()

examples/projections/azim/azim_general_stereographic.py

@@ -1,28 +1,28 @@
-"""
-General Stereographic
-=====================
-
-This map projection is a conformal, azimuthal projection. It is mainly used with
-a projection center in one of the poles. Then meridians appear as straight lines
-and cross latitudes at a right angle. Unlike the azimuthal equidistant projection,
-the distances in this projection are not displayed in correct proportions.
-It is often used as a hemisphere map like the Lambert Azimuthal Equal Area
-projection.
-
-``slon0/lat0[/horizon]/scale`` or ``Slon0/lat0[/horizon]/width``
-
-``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
-
-fig = pygmt.Figure()
-fig.coast(region="4/14/52/57", projection="S0/90/4.5i", frame="ag", land="gray")
-fig.show()
+"""
+General Stereographic
+=====================
+
+This map projection is a conformal, azimuthal projection. It is mainly used with
+a projection center in one of the poles. Then meridians appear as straight lines
+and cross latitudes at a right angle. Unlike the azimuthal equidistant projection,
+the distances in this projection are not displayed in correct proportions.
+It is often used as a hemisphere map like the Lambert Azimuthal Equal Area
+projection.
+
+``slon0/lat0[/horizon]/scale`` or ``Slon0/lat0[/horizon]/width``
+
+``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
+
+fig = pygmt.Figure()
+fig.coast(region="4/14/52/57", projection="S0/90/4.5i", frame="ag", land="gray")
+fig.show()

examples/projections/azim/azim_gnomonic.py

@@ -1,22 +1,22 @@
-"""
-Gnomonic
-========
-
-The point of perspective of the gnomonic projection lies at the center of the
-earth. As a consequence great circles (orthodromes) on the surface of the earth
-are displayed as straight lines, which makes it suitable for distance estimation
-for navigational purposes. It is neither conformal nor equal-area and the
-distortion increases greatly with distance to the projection center. It follows
-that the scope of application is restricted to a small area around the
-projection center (at a maximum of 60°).
-
-``flon0/lat0[/horizon]/scale`` or ``Flon0/lat0[/horizon]/width``
-
-``lon0/lat0`` specify the projection center, the optional parameter ``horizon``
-specifies the max distance from projection center (in degrees, < 90, default 60).
-"""
-import pygmt
-
-fig = pygmt.Figure()
-fig.coast(projection="F-90/15/4.5i", region="g", frame="20g20", land="gray")
-fig.show()
+"""
+Gnomonic
+========
+
+The point of perspective of the gnomonic projection lies at the center of the
+earth. As a consequence great circles (orthodromes) on the surface of the earth
+are displayed as straight lines, which makes it suitable for distance estimation
+for navigational purposes. It is neither conformal nor equal-area and the
+distortion increases greatly with distance to the projection center. It follows
+that the scope of application is restricted to a small area around the
+projection center (at a maximum of 60°).
+
+``flon0/lat0[/horizon]/scale`` or ``Flon0/lat0[/horizon]/width``
+
+``lon0/lat0`` specify the projection center, the optional parameter ``horizon``
+specifies the max distance from projection center (in degrees, < 90, default 60).
+"""
+import pygmt
+
+fig = pygmt.Figure()
+fig.coast(projection="F-90/15/4.5i", region="g", frame="20g20", land="gray")
+fig.show()

examples/projections/azim/azim_orthographic.py

@@ -1,20 +1,20 @@
-"""
-Orthographic
-============
-
-This is a perspective projection like the general perspective,
-but with the difference that the point of perspective lies in infinite distance.
-It is therefore often used to give the appearance of a globe viewed from outer
-space, were one hemisphere can be seen as a whole. It is neither conformal nor
-equal-area and the distortion increases near the edges.
-
-``glon0/lat0[/horizon]/scale`` or ``Glon0/lat0[/horizon]/width``
-
-``lon0/lat0`` specifies the projection center, the optional parameter ``horizon``
-specifies the max distance from projection center (in degrees, <= 90, default 90)
-"""
-import pygmt
-
-fig = pygmt.Figure()
-fig.coast(projection="G10/52/4.5i", region="g", frame="g", land="gray")
-fig.show()
+"""
+Orthographic
+============
+
+This is a perspective projection like the general perspective,
+but with the difference that the point of perspective lies in infinite distance.
+It is therefore often used to give the appearance of a globe viewed from outer
+space, were one hemisphere can be seen as a whole. It is neither conformal nor
+equal-area and the distortion increases near the edges.
+
+``glon0/lat0[/horizon]/scale`` or ``Glon0/lat0[/horizon]/width``
+
+``lon0/lat0`` specifies the projection center, the optional parameter ``horizon``
+specifies the max distance from projection center (in degrees, <= 90, default 90)
+"""
+import pygmt
+
+fig = pygmt.Figure()
+fig.coast(projection="G10/52/4.5i", region="g", frame="g", land="gray")
+fig.show()

examples/projections/nongeo/cartesian.py

@@ -1,21 +1,21 @@
-"""
-Cartesian
-=========
-
-``Xwidth/[height]``: Give the ``width`` of the figure and the optional argument ``height``.
-"""
-import pygmt
-
-fig = pygmt.Figure()
-fig.plot(
-    # The ``x`` and ``y`` parameters are used to plot lines on the figure.
-    x=[3, 9, 2],
-    y=[4, 9, 37],
-    pen="3p,red",
-    # ``region`` sets the x and y ranges or the Cartesian figure.
-    region=[0, 10, 0, 50],
-    # The argument ``WSne`` is passed to ``frame`` to put axis labels only on the left and bottom axes.
-    projection="X15c/10c",
-    frame=["af", "WSne"],
-)
-fig.show()
+"""
+Cartesian
+=========
+
+``Xwidth/[height]``: Give the ``width`` of the figure and the optional argument ``height``.
+"""
+import pygmt
+
+fig = pygmt.Figure()
+fig.plot(
+    # The ``x`` and ``y`` parameters are used to plot lines on the figure.
+    x=[3, 9, 2],
+    y=[4, 9, 37],
+    pen="3p,red",
+    # ``region`` sets the x and y ranges or the Cartesian figure.
+    region=[0, 10, 0, 50],
+    # The argument ``WSne`` is passed to ``frame`` to put axis labels only on the left and bottom axes.
+    projection="X15c/10c",
+    frame=["af", "WSne"],
+)
+fig.show()