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def with_scale(self, new_scale):
return MetPyMapFeature(self.name, new_scale, **self.kwargs)<EOL>
Return a copy of the feature with a new scale. Parameters ---------- new_scale The new dataset scale, i.e. one of '500k', '5m', or '20m'. Corresponding to 1:500,000, 1:5,000,000, and 1:20,000,000 respectively.
f8524:c0:m2
@property<EOL><INDENT>def panel(self):<DEDENT>
return self.panels[<NUM_LIT:0>]<EOL>
Provide simple access for a single panel.
f8525:c1:m0
@property<EOL><INDENT>def figure(self):<DEDENT>
if not hasattr(self, '<STR_LIT>'):<EOL><INDENT>self._fig = plt.figure(figsize=self.size)<EOL><DEDENT>return self._fig<EOL>
Provide access to the underlying figure object.
f8525:c1:m3
def refresh(self, _):
<EOL>self.draw()<EOL>self.figure.canvas.draw()<EOL>try:<EOL><INDENT>self.figure.canvas.flush_events()<EOL><DEDENT>except NotImplementedError:<EOL><INDENT>pass<EOL><DEDENT>
Refresh the rendering of all panels.
f8525:c1:m4
def draw(self):
for panel in self.panels:<EOL><INDENT>with panel.hold_trait_notifications():<EOL><INDENT>panel.draw()<EOL><DEDENT><DEDENT>
Draw the collection of panels.
f8525:c1:m5
def save(self, *args, **kwargs):
self.draw()<EOL>self.figure.savefig(*args, **kwargs)<EOL>
Save the constructed graphic as an image file.
f8525:c1:m6
def show(self):
self.draw()<EOL>self.figure.show()<EOL>
Show the constructed graphic on the screen.
f8525:c1:m7
@observe('<STR_LIT>')<EOL><INDENT>def _plots_changed(self, change):<DEDENT>
for plot in change.new:<EOL><INDENT>plot.parent = self<EOL>plot.observe(self.refresh, names=('<STR_LIT>'))<EOL><DEDENT>self._need_redraw = True<EOL>
Handle when our collection of plots changes.
f8525:c2:m0
@observe('<STR_LIT>')<EOL><INDENT>def _parent_changed(self, _):<DEDENT>
self.ax = None<EOL>
Handle when the parent is changed.
f8525:c2:m1
@property<EOL><INDENT>def _proj_obj(self):<DEDENT>
if is_string_like(self.projection):<EOL><INDENT>if self.projection == '<STR_LIT:data>':<EOL><INDENT>return self.plots[<NUM_LIT:0>].griddata.metpy.cartopy_crs<EOL><DEDENT>else:<EOL><INDENT>return _projections[self.projection]<EOL><DEDENT><DEDENT>else:<EOL><INDENT>return self.projection<EOL><DEDENT>
Return the projection as a Cartopy object. Handles looking up a string for the projection, or if the projection is set to ``'data'`` looks at the data for the projection.
f8525:c2:m2
@property<EOL><INDENT>def _layer_features(self):<DEDENT>
for item in self.layers:<EOL><INDENT>if is_string_like(item):<EOL><INDENT>item = item.upper()<EOL>try:<EOL><INDENT>scaler = cfeature.AdaptiveScaler('<STR_LIT>', (('<STR_LIT>', <NUM_LIT:50>), ('<STR_LIT>', <NUM_LIT:15>)))<EOL>feat = getattr(cfeature, item).with_scale(scaler)<EOL><DEDENT>except AttributeError:<EOL><INDEN...
Iterate over all map features and return as Cartopy objects. Handle converting names of maps to auto-scaling map features.
f8525:c2:m3
@observe('<STR_LIT>')<EOL><INDENT>def _set_need_redraw(self, _):<DEDENT>
self._need_redraw = True<EOL>
Watch traits and set the need redraw flag as necessary.
f8525:c2:m4
@property<EOL><INDENT>def ax(self):<DEDENT>
<EOL>if getattr(self, '<STR_LIT>', None) is None:<EOL><INDENT>self._ax = self.parent.figure.add_subplot(*self.layout, projection=self._proj_obj)<EOL><DEDENT>return self._ax<EOL>
Get the :class:`matplotlib.axes.Axes` to draw on. Creates a new instance if necessary.
f8525:c2:m5
@ax.setter<EOL><INDENT>def ax(self, val):<DEDENT>
if getattr(self, '<STR_LIT>', None) is not None:<EOL><INDENT>self._ax.cla()<EOL><DEDENT>self._ax = val<EOL>
Set the :class:`matplotlib.axes.Axes` to draw on. Clears existing state as necessary.
f8525:c2:m6
def refresh(self, changed):
self._need_redraw = changed.new<EOL>
Refresh the drawing if necessary.
f8525:c2:m7
def draw(self):
<EOL>if self._need_redraw:<EOL><INDENT>for p in self.plots:<EOL><INDENT>with p.hold_trait_notifications():<EOL><INDENT>p.draw()<EOL><DEDENT><DEDENT>for feat in self._layer_features:<EOL><INDENT>self.ax.add_feature(feat)<EOL><DEDENT>if self.area == '<STR_LIT>':<EOL><INDENT>self.ax.set_global()<EOL><DEDENT>elif self.area...
Draw the panel.
f8525:c2:m8
@property<EOL><INDENT>def _cmap_obj(self):<DEDENT>
try:<EOL><INDENT>return ctables.registry.get_colortable(self.colormap)<EOL><DEDENT>except KeyError:<EOL><INDENT>return plt.get_cmap(self.colormap)<EOL><DEDENT>
Return the colormap object. Handle convert the name of the colormap to an object from matplotlib or metpy.
f8525:c3:m0
@property<EOL><INDENT>def _norm_obj(self):<DEDENT>
return plt.Normalize(*self.image_range)<EOL>
Return the normalization object. Converts the tuple image range to a matplotlib normalization instance.
f8525:c3:m1
def clear(self):
if getattr(self, '<STR_LIT>', None) is not None:<EOL><INDENT>self.clear_handle()<EOL>self._need_redraw = True<EOL><DEDENT>
Clear the plot. Resets all internal state and sets need for redraw.
f8525:c3:m2
def clear_handle(self):
self.handle.remove()<EOL>self.handle = None<EOL>
Clear the handle to the plot instance.
f8525:c3:m3
@observe('<STR_LIT>')<EOL><INDENT>def _parent_changed(self, _):<DEDENT>
self.clear()<EOL>
Handle setting the parent object for the plot.
f8525:c3:m4
@observe('<STR_LIT>', '<STR_LIT>', '<STR_LIT:time>')<EOL><INDENT>def _update_data(self, _=None):<DEDENT>
self._griddata = None<EOL>self.clear()<EOL>
Handle updating the internal cache of data. Responds to changes in various subsetting parameters.
f8525:c3:m5
@property<EOL><INDENT>def data(self):<DEDENT>
return self._data<EOL>
Access the current data subset.
f8525:c3:m6
@property<EOL><INDENT>def griddata(self):<DEDENT>
if getattr(self, '<STR_LIT>', None) is None:<EOL><INDENT>if self.field:<EOL><INDENT>data = self.data.metpy.parse_cf(self.field)<EOL><DEDENT>elif not hasattr(self.data.metpy, '<STR_LIT:x>'):<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>else:<EOL><INDENT>data = self.data<EOL><DEDENT>subset = {'<STR_LIT>': '<STR_...
Return the internal cached data.
f8525:c3:m8
@property<EOL><INDENT>def plotdata(self):<DEDENT>
x = self.griddata.metpy.x<EOL>y = self.griddata.metpy.y<EOL>if '<STR_LIT>' in x.units:<EOL><INDENT>import numpy as np<EOL>x, y, _ = self.griddata.metpy.cartopy_crs.transform_points(ccrs.PlateCarree(),<EOL>*np.meshgrid(x, y)).T<EOL>x = x[:, <NUM_LIT:0>] % <NUM_LIT><EOL>y = y[<NUM_LIT:0>, :]<EOL><DEDENT>return x, y, self...
Return the data for plotting. The data array, x coordinates, and y coordinates.
f8525:c3:m9
@property<EOL><INDENT>def name(self):<DEDENT>
ret = self.field<EOL>if self.level is not None:<EOL><INDENT>ret += '<STR_LIT>'.format(self.level)<EOL><DEDENT>return ret<EOL>
Generate a name for the plot.
f8525:c3:m10
def draw(self):
if self._need_redraw:<EOL><INDENT>if getattr(self, '<STR_LIT>', None) is None:<EOL><INDENT>self._build()<EOL><DEDENT>self._need_redraw = False<EOL><DEDENT>
Draw the plot.
f8525:c3:m11
@observe('<STR_LIT>', '<STR_LIT>')<EOL><INDENT>def _set_need_redraw(self, _):<DEDENT>
if hasattr(self, '<STR_LIT>'):<EOL><INDENT>self.handle.set_cmap(self._cmap_obj)<EOL>self.handle.set_norm(self._norm_obj)<EOL>self._need_redraw = True<EOL><DEDENT>
Handle changes to attributes that just need a simple redraw.
f8525:c4:m0
@property<EOL><INDENT>def plotdata(self):<DEDENT>
x = self.griddata.metpy.x<EOL>y = self.griddata.metpy.y<EOL>if '<STR_LIT>' in x.units:<EOL><INDENT>x = x.data<EOL>x[x > <NUM_LIT>] -= <NUM_LIT><EOL><DEDENT>return x, y, self.griddata<EOL>
Return the data for plotting. The data array, x coordinates, and y coordinates.
f8525:c4:m1
def _build(self):
x, y, imdata = self.plotdata<EOL>extents = (x[<NUM_LIT:0>], x[-<NUM_LIT:1>], y.min(), y.max())<EOL>origin = '<STR_LIT>' if y[<NUM_LIT:0>] > y[-<NUM_LIT:1>] else '<STR_LIT>'<EOL>self.handle = self.parent.ax.imshow(imdata, extent=extents, origin=origin,<EOL>cmap=self._cmap_obj, norm=self._norm_obj,<EOL>transform=imdata.m...
Build the plot by calling any plotting methods as necessary.
f8525:c4:m2
@observe('<STR_LIT>', '<STR_LIT>', '<STR_LIT>')<EOL><INDENT>def _set_need_rebuild(self, _):<DEDENT>
<EOL>self.clear()<EOL>
Handle changes to attributes that need to regenerate everything.
f8525:c5:m0
def clear_handle(self):
for col in self.handle.collections:<EOL><INDENT>col.remove()<EOL><DEDENT>self.handle = None<EOL>
Clear the handle to the plot instance.
f8525:c5:m1
def _build(self):
x, y, imdata = self.plotdata<EOL>self.handle = self.parent.ax.contour(x, y, imdata, self.contours,<EOL>colors=self.linecolor, linewidths=self.linewidth,<EOL>transform=imdata.metpy.cartopy_crs)<EOL>
Build the plot by calling any plotting methods as necessary.
f8525:c5:m2
def __init__(self, ax, x, y, fontsize=<NUM_LIT:10>, spacing=None, transform=None, **kwargs):
self.ax = ax<EOL>self.x = x<EOL>self.y = y<EOL>self.fontsize = fontsize<EOL>self.spacing = fontsize if spacing is None else spacing<EOL>self.transform = transform<EOL>self.items = {}<EOL>self.barbs = None<EOL>self.default_kwargs = kwargs<EOL>
Initialize the StationPlot with items that do not change. This sets up the axes and station locations. The `fontsize` and `spacing` are also specified here to ensure that they are consistent between individual station elements. Parameters ---------- ax : matplotlib.axes...
f8526:c0:m0
def plot_symbol(self, location, codes, symbol_mapper, **kwargs):
<EOL>kwargs['<STR_LIT>'] = wx_symbol_font.copy()<EOL>return self.plot_parameter(location, codes, symbol_mapper, **kwargs)<EOL>
At the specified location in the station model plot a set of symbols. This specifies that at the offset `location`, the data in `codes` should be converted to unicode characters (for our :data:`wx_symbol_font`) using `symbol_mapper`, and plotted. Additional keyword arguments given will...
f8526:c0:m1
def plot_parameter(self, location, parameter, formatter='<STR_LIT>', **kwargs):
text = self._to_string_list(parameter, formatter)<EOL>return self.plot_text(location, text, **kwargs)<EOL>
At the specified location in the station model plot a set of values. This specifies that at the offset `location`, the data in `parameter` should be plotted. The conversion of the data values to a string is controlled by `formatter`. Additional keyword arguments given will be passed onto the a...
f8526:c0:m2
def plot_text(self, location, text, **kwargs):
location = self._handle_location(location)<EOL>kwargs = self._make_kwargs(kwargs)<EOL>text_collection = self.ax.scattertext(self.x, self.y, text, loc=location,<EOL>size=kwargs.pop('<STR_LIT>', self.fontsize),<EOL>**kwargs)<EOL>if location in self.items:<EOL><INDENT>self.items[location].remove()<EOL><DEDENT>self.items[l...
At the specified location in the station model plot a collection of text. This specifies that at the offset `location`, the strings in `text` should be plotted. Additional keyword arguments given will be passed onto the actual plotting code; this is useful for specifying things like co...
f8526:c0:m3
def plot_barb(self, u, v, **kwargs):
kwargs = self._make_kwargs(kwargs)<EOL>plotting_units = kwargs.pop('<STR_LIT>', None)<EOL>if plotting_units:<EOL><INDENT>if hasattr(u, '<STR_LIT>') and hasattr(v, '<STR_LIT>'):<EOL><INDENT>u = u.to(plotting_units)<EOL>v = v.to(plotting_units)<EOL><DEDENT>else:<EOL><INDENT>raise ValueError('<STR_LIT>'<EOL>'<STR_LIT>')<E...
r"""At the center of the station model plot wind barbs. Additional keyword arguments given will be passed onto matplotlib's :meth:`~matplotlib.axes.Axes.barbs` function; this is useful for specifying things like color or line width. Parameters ---------- u : array-like ...
f8526:c0:m4
def _make_kwargs(self, kwargs):
<EOL>all_kw = self.default_kwargs.copy()<EOL>all_kw.update(kwargs)<EOL>if '<STR_LIT>' not in all_kw and self.transform:<EOL><INDENT>all_kw['<STR_LIT>'] = self.transform<EOL><DEDENT>return all_kw<EOL>
Assemble kwargs as necessary. Inserts our defaults as well as ensures transform is present when appropriate.
f8526:c0:m5
@staticmethod<EOL><INDENT>def _to_string_list(vals, fmt):<DEDENT>
if not callable(fmt):<EOL><INDENT>def formatter(s):<EOL><INDENT>"""<STR_LIT>"""<EOL>if hasattr(s, '<STR_LIT>'):<EOL><INDENT>s = s.item()<EOL><DEDENT>return format(s, fmt)<EOL><DEDENT><DEDENT>else:<EOL><INDENT>formatter = fmt<EOL><DEDENT>return [formatter(v) if np.isfinite(v) else '<STR_LIT>' for v in vals]<EOL>
Convert a sequence of values to a list of strings.
f8526:c0:m6
def _handle_location(self, location):
if is_string_like(location):<EOL><INDENT>location = self.location_names[location]<EOL><DEDENT>xoff, yoff = location<EOL>return xoff * self.spacing, yoff * self.spacing<EOL>
Process locations to get a consistent set of tuples for location.
f8526:c0:m7
def add_value(self, location, name, fmt='<STR_LIT>', units=None, **kwargs):
self[location] = (self.PlotTypes.value, name, (fmt, units, kwargs))<EOL>
r"""Add a numeric value to the station layout. This specifies that at the offset `location`, data should be pulled from the data container using the key `name` and plotted. The conversion of the data values to a string is controlled by `fmt`. The units required for plotting can also be ...
f8526:c1:m0
def add_symbol(self, location, name, symbol_mapper, **kwargs):
self[location] = (self.PlotTypes.symbol, name, (symbol_mapper, kwargs))<EOL>
r"""Add a symbol to the station layout. This specifies that at the offset `location`, data should be pulled from the data container using the key `name` and plotted. Data values will converted to glyphs appropriate for MetPy's symbol font using the callable `symbol_mapper`. Additional ...
f8526:c1:m1
def add_text(self, location, name, **kwargs):
self[location] = (self.PlotTypes.text, name, kwargs)<EOL>
r"""Add a text field to the station layout. This specifies that at the offset `location`, data should be pulled from the data container using the key `name` and plotted directly as text with no conversion applied. Additional keyword arguments given will be passed onto the actual plott...
f8526:c1:m2
def add_barb(self, u_name, v_name, units=None, **kwargs):
<EOL>self['<STR_LIT>'] = (self.PlotTypes.barb, (u_name, v_name), (units, kwargs))<EOL>
r"""Add a wind barb to the center of the station layout. This specifies that u- and v-component data should be pulled from the data container using the keys `u_name` and `v_name`, respectively, and plotted as a wind barb at the center of the station plot. If `units` are given, both comp...
f8526:c1:m3
def names(self):
ret = []<EOL>for item in self.values():<EOL><INDENT>if item[<NUM_LIT:0>] == self.PlotTypes.barb:<EOL><INDENT>ret.extend(item[<NUM_LIT:1>])<EOL><DEDENT>else:<EOL><INDENT>ret.append(item[<NUM_LIT:1>])<EOL><DEDENT><DEDENT>return ret<EOL>
Get the list of names used by the layout. Returns ------- list[str] the list of names of variables used by the layout
f8526:c1:m4
def plot(self, plotter, data_dict):
def coerce_data(dat, u):<EOL><INDENT>try:<EOL><INDENT>return dat.to(u).magnitude<EOL><DEDENT>except AttributeError:<EOL><INDENT>return dat<EOL><DEDENT><DEDENT>for loc, info in self.items():<EOL><INDENT>typ, name, args = info<EOL>if typ == self.PlotTypes.barb:<EOL><INDENT>u_name, v_name = name<EOL>u_data = data_dict.get...
Plot a collection of data using this layout for a station plot. This function iterates through the entire specified layout, pulling the fields named in the layout from `data_dict` and plotting them using `plotter` as specified in the layout. Fields present in the layout, but not in `data_dict`,...
f8526:c1:m5
def __repr__(self):
return ('<STR_LIT:{>'<EOL>+ '<STR_LIT:U+002CU+0020>'.join('<STR_LIT>'.format(loc, info)<EOL>for loc, info in sorted(self.items()))<EOL>+ '<STR_LIT:}>')<EOL>
Return string representation of layout.
f8526:c1:m6
def __init__(self, num, font_start, font_jumps=None, char_jumps=None):
next_font_jump = self._safe_pop(font_jumps)<EOL>next_char_jump = self._safe_pop(char_jumps)<EOL>font_point = font_start<EOL>self.chrs = []<EOL>code = <NUM_LIT:0><EOL>while code < num:<EOL><INDENT>if next_char_jump and code >= next_char_jump[<NUM_LIT:0>]:<EOL><INDENT>jump_len = next_char_jump[<NUM_LIT:1>]<EOL>code += ju...
Initialize the instance. Parameters ---------- num : int The number of values that will be mapped font_start : int The first code point in the font to use in the mapping font_jumps : list[int, int], optional Sequence of code point jumps in the...
f8527:c0:m0
@staticmethod<EOL><INDENT>def _safe_pop(l):<DEDENT>
return l.pop(<NUM_LIT:0>) if l else None<EOL>
Safely pop from a list. Returns None if list empty.
f8527:c0:m1
def __call__(self, code):
return self.chrs[code]<EOL>
Return the Unicode code point corresponding to `code`.
f8527:c0:m2
def __len__(self):
return len(self.chrs)<EOL>
Return the number of codes supported by this mapping.
f8527:c0:m3
def alt_char(self, code, alt):
return code_point(ord(self(code)) + alt)<EOL>
Get one of the alternate code points for a given value. In the WMO tables, some code have multiple symbols. This allows getting that symbol rather than main one. Parameters ---------- code : int The code for looking up the font code point alt : int ...
f8527:c0:m4
@CFProjection.register('<STR_LIT>')<EOL>def make_geo(attrs_dict, globe):
attr_mapping = [('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)<EOL>if not kwargs.get('<STR_LIT>'):<EOL><INDENT>kwargs.pop('<STR_LIT>', None)<EOL><DEDENT>if '<STR_LIT>' not in kwargs:<EOL><INDENT>kwargs['<STR_LIT>'] = '<STR_LIT:x>' ...
Handle geostationary projection.
f8528:m0
@CFProjection.register('<STR_LIT>')<EOL>def make_lcc(attrs_dict, globe):
attr_mapping = [('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)<EOL>if '<STR_LIT>' in kwargs:<EOL><INDENT>try:<EOL><INDENT>len(kwargs['<STR_LIT>'])<EOL><DEDENT>except TypeError:<EOL><INDENT>kwargs['<STR_LIT>'] = [kwargs['<STR_LIT>']...
Handle Lambert conformal conic projection.
f8528:m1
@CFProjection.register('<STR_LIT>')<EOL>def make_latlon(attrs_dict, globe):
<EOL>return ccrs.PlateCarree()<EOL>
Handle plain latitude/longitude mapping.
f8528:m2
@CFProjection.register('<STR_LIT>')<EOL>def make_mercator(attrs_dict, globe):
attr_mapping = [('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)<EOL>if not kwargs.get('<STR_LIT>'):<EOL><INDENT>kwargs.pop('<STR_LIT>', None)<EOL><DEDENT>if not kwargs.get('<STR_LIT>'):<EOL><INDENT>kwargs.pop('<STR_LIT>', None)<EOL>...
Handle Mercator projection.
f8528:m3
@CFProjection.register('<STR_LIT>')<EOL>def make_stereo(attrs_dict, globe):
attr_mapping = [('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)<EOL>return ccrs.Stereographic(globe=globe, **kwargs)<EOL>
Handle generic stereographic projection.
f8528:m4
@CFProjection.register('<STR_LIT>')<EOL>def make_polar_stereo(attrs_dict, globe):
attr_mapping = [('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)<EOL>return ccrs.Stereographic(globe=globe, **kwargs)<EOL>
Handle polar stereographic projection.
f8528:m5
def __init__(self, attrs):
self._attrs = attrs<EOL>
Initialize the CF Projection handler with a set of metadata attributes.
f8528:c0:m0
@classmethod<EOL><INDENT>def register(cls, name):<DEDENT>
return cls.projection_registry.register(name)<EOL>
Register a new projection to handle.
f8528:c0:m1
@classmethod<EOL><INDENT>def build_projection_kwargs(cls, source, mapping):<DEDENT>
return cls._map_arg_names(source, cls._default_attr_mapping + mapping)<EOL>
Handle mapping a dictionary of metadata to keyword arguments.
f8528:c0:m2
@staticmethod<EOL><INDENT>def _map_arg_names(source, mapping):<DEDENT>
return {cartopy_name: source[cf_name] for cartopy_name, cf_name in mapping<EOL>if cf_name in source}<EOL>
Map one set of keys to another.
f8528:c0:m3
@property<EOL><INDENT>def cartopy_globe(self):<DEDENT>
if '<STR_LIT>' in self._attrs:<EOL><INDENT>kwargs = {'<STR_LIT>': '<STR_LIT>', '<STR_LIT>': self._attrs['<STR_LIT>'],<EOL>'<STR_LIT>': self._attrs['<STR_LIT>']}<EOL><DEDENT>else:<EOL><INDENT>attr_mapping = [('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>'),<EOL>('<STR_LIT>', '<STR_LIT>')]<EOL>kwargs = self._ma...
Initialize a `cartopy.crs.Globe` from the metadata.
f8528:c0:m4
def to_cartopy(self):
globe = self.cartopy_globe<EOL>proj_name = self._attrs['<STR_LIT>']<EOL>try:<EOL><INDENT>proj_handler = self.projection_registry[proj_name]<EOL><DEDENT>except KeyError:<EOL><INDENT>raise ValueError('<STR_LIT>'.format(proj_name))<EOL><DEDENT>return proj_handler(self._attrs, globe)<EOL>
Convert to a CartoPy projection.
f8528:c0:m5
def to_dict(self):
return self._attrs.copy()<EOL>
Get the dictionary of metadata attributes.
f8528:c0:m6
def __str__(self):
return '<STR_LIT>' + self._attrs['<STR_LIT>']<EOL>
Get a string representation of the projection.
f8528:c0:m7
def __getitem__(self, item):
return self._attrs[item]<EOL>
Return a given attribute.
f8528:c0:m8
def __eq__(self, other):
return self.__class__ == other.__class__ and self.to_dict() == other.to_dict()<EOL>
Test equality (CFProjection with matching attrs).
f8528:c0:m9
def __ne__(self, other):
return not self.__eq__(other)<EOL>
Test inequality (not equal to).
f8528:c0:m10
@exporter.export<EOL>def read_colortable(fobj):
ret = []<EOL>try:<EOL><INDENT>for line in fobj:<EOL><INDENT>literal = _parse(line)<EOL>if literal:<EOL><INDENT>ret.append(mcolors.colorConverter.to_rgb(literal))<EOL><DEDENT><DEDENT>return ret<EOL><DEDENT>except (SyntaxError, ValueError):<EOL><INDENT>raise RuntimeError('<STR_LIT>')<EOL><DEDENT>
r"""Read colortable information from a file. Reads a colortable, which consists of one color per line of the file, where a color can be one of: a tuple of 3 floats, a string with a HTML color name, or a string with a HTML hex color. Parameters ---------- fobj : a file-like object A fil...
f8529:m1
def convert_gempak_table(infile, outfile):
for line in infile:<EOL><INDENT>if not line.startswith('<STR_LIT:!>') and line.strip():<EOL><INDENT>r, g, b = map(int, line.split())<EOL>outfile.write('<STR_LIT>'.format(r / <NUM_LIT:255>, g / <NUM_LIT:255>, b / <NUM_LIT:255>))<EOL><DEDENT><DEDENT>
r"""Convert a GEMPAK color table to one MetPy can read. Reads lines from a GEMPAK-style color table file, and writes them to another file in a format that MetPy can parse. Parameters ---------- infile : file-like object The file-like object to read from outfile : file-like object ...
f8529:m2
def scan_resource(self, pkg, path):
for fname in resource_listdir(pkg, path):<EOL><INDENT>if fname.endswith(TABLE_EXT):<EOL><INDENT>table_path = posixpath.join(path, fname)<EOL>with contextlib.closing(resource_stream(pkg, table_path)) as stream:<EOL><INDENT>self.add_colortable(stream,<EOL>posixpath.splitext(posixpath.basename(fname))[<NUM_LIT:0>])<EOL><D...
r"""Scan a resource directory for colortable files and add them to the registry. Parameters ---------- pkg : str The package containing the resource directory path : str The path to the directory with the color tables
f8529:c0:m0
def scan_dir(self, path):
for fname in glob.glob(os.path.join(path, '<STR_LIT:*>' + TABLE_EXT)):<EOL><INDENT>if os.path.isfile(fname):<EOL><INDENT>with open(fname, '<STR_LIT:r>') as fobj:<EOL><INDENT>try:<EOL><INDENT>self.add_colortable(fobj, os.path.splitext(os.path.basename(fname))[<NUM_LIT:0>])<EOL>log.debug('<STR_LIT>', fname)<EOL><DEDENT>e...
r"""Scan a directory on disk for color table files and add them to the registry. Parameters ---------- path : str The path to the directory with the color tables
f8529:c0:m1
def add_colortable(self, fobj, name):
self[name] = read_colortable(fobj)<EOL>self[name + '<STR_LIT>'] = self[name][::-<NUM_LIT:1>]<EOL>
r"""Add a color table from a file to the registry. Parameters ---------- fobj : file-like object The file to read the color table from name : str The name under which the color table will be stored
f8529:c0:m2
def get_with_steps(self, name, start, step):
from numpy import arange<EOL>num_steps = len(self[name]) + <NUM_LIT:1><EOL>boundaries = arange(start, start + step * num_steps, step)<EOL>return self.get_with_boundaries(name, boundaries)<EOL>
r"""Get a color table from the registry with a corresponding norm. Builds a `matplotlib.colors.BoundaryNorm` using `start`, `step`, and the number of colors, based on the color table obtained from `name`. Parameters ---------- name : str The name under which the col...
f8529:c0:m3
def get_with_range(self, name, start, end):
from numpy import linspace<EOL>num_steps = len(self[name]) + <NUM_LIT:1><EOL>boundaries = linspace(start, end, num_steps)<EOL>return self.get_with_boundaries(name, boundaries)<EOL>
r"""Get a color table from the registry with a corresponding norm. Builds a `matplotlib.colors.BoundaryNorm` using `start`, `end`, and the number of colors, based on the color table obtained from `name`. Parameters ---------- name : str The name under which the colo...
f8529:c0:m4
def get_with_boundaries(self, name, boundaries):
cmap = self.get_colortable(name)<EOL>return mcolors.BoundaryNorm(boundaries, cmap.N), cmap<EOL>
r"""Get a color table from the registry with a corresponding norm. Builds a `matplotlib.colors.BoundaryNorm` using `boundaries`. Parameters ---------- name : str The name under which the color table will be stored boundaries : array_like The list of boun...
f8529:c0:m5
def get_colortable(self, name):
return mcolors.ListedColormap(self[name], name=name)<EOL>
r"""Get a color table from the registry. Parameters ---------- name : str The name under which the color table will be stored Returns ------- `matplotlib.colors.ListedColormap` The color table corresponding to `name`
f8529:c0:m6
def basic_map(proj):
fig = plt.figure(figsize=(<NUM_LIT:15>, <NUM_LIT:10>))<EOL>add_metpy_logo(fig, <NUM_LIT:0>, <NUM_LIT>, size='<STR_LIT>')<EOL>view = fig.add_axes([<NUM_LIT:0>, <NUM_LIT:0>, <NUM_LIT:1>, <NUM_LIT:1>], projection=proj)<EOL>view.set_extent([-<NUM_LIT>, -<NUM_LIT>, <NUM_LIT:20>, <NUM_LIT:50>])<EOL>view.add_feature(cfeature....
Make our basic default map for plotting
f8539:m0
def draw_polygon_with_info(ax, polygon, off_x=<NUM_LIT:0>, off_y=<NUM_LIT:0>):
pts = np.array(polygon)[ConvexHull(polygon).vertices]<EOL>for i, pt in enumerate(pts):<EOL><INDENT>ax.plot([pt[<NUM_LIT:0>], pts[(i + <NUM_LIT:1>) % len(pts)][<NUM_LIT:0>]],<EOL>[pt[<NUM_LIT:1>], pts[(i + <NUM_LIT:1>) % len(pts)][<NUM_LIT:1>]], '<STR_LIT>')<EOL><DEDENT>avex, avey = np.mean(pts, axis=<NUM_LIT:0>)<EOL>ax...
Draw one of the natural neighbor polygons with some information.
f8543:m1
def __init__(self, fig, dates, probeid, time=None, axis=<NUM_LIT:0>):
if not time:<EOL><INDENT>time = dt.datetime.utcnow()<EOL><DEDENT>self.start = dates[<NUM_LIT:0>]<EOL>self.fig = fig<EOL>self.end = dates[-<NUM_LIT:1>]<EOL>self.axis_num = <NUM_LIT:0><EOL>self.dates = mpl.dates.date2num(dates)<EOL>self.time = time.strftime('<STR_LIT>')<EOL>self.title = '<STR_LIT>'.format(self.time, prob...
Required input: fig: figure object dates: array of dates corresponding to the data probeid: ID of the station Optional Input: time: Time the data is to be plotted axis: number that controls the new axis to be plotted (FOR FUTURE)
f8548:c0:m0
def plot_winds(self, ws, wd, wsmax, plot_range=None):
<EOL>self.ax1 = fig.add_subplot(<NUM_LIT:4>, <NUM_LIT:1>, <NUM_LIT:1>)<EOL>ln1 = self.ax1.plot(self.dates, ws, label='<STR_LIT>')<EOL>self.ax1.fill_between(self.dates, ws, <NUM_LIT:0>)<EOL>self.ax1.set_xlim(self.start, self.end)<EOL>if not plot_range:<EOL><INDENT>plot_range = [<NUM_LIT:0>, <NUM_LIT:20>, <NUM_LIT:1>]<EO...
Required input: ws: Wind speeds (knots) wd: Wind direction (degrees) wsmax: Wind gust (knots) Optional Input: plot_range: Data range for making figure (list of (min,max,step))
f8548:c0:m1
def plot_thermo(self, t, td, plot_range=None):
<EOL>if not plot_range:<EOL><INDENT>plot_range = [<NUM_LIT:10>, <NUM_LIT>, <NUM_LIT:2>]<EOL><DEDENT>self.ax2 = fig.add_subplot(<NUM_LIT:4>, <NUM_LIT:1>, <NUM_LIT:2>, sharex=self.ax1)<EOL>ln4 = self.ax2.plot(self.dates, t, '<STR_LIT>', label='<STR_LIT>')<EOL>self.ax2.fill_between(self.dates, t, td, color='<STR_LIT:r>')<...
Required input: T: Temperature (deg F) TD: Dewpoint (deg F) Optional Input: plot_range: Data range for making figure (list of (min,max,step))
f8548:c0:m2
def plot_rh(self, rh, plot_range=None):
<EOL>if not plot_range:<EOL><INDENT>plot_range = [<NUM_LIT:0>, <NUM_LIT:100>, <NUM_LIT:4>]<EOL><DEDENT>self.ax3 = fig.add_subplot(<NUM_LIT:4>, <NUM_LIT:1>, <NUM_LIT:3>, sharex=self.ax1)<EOL>self.ax3.plot(self.dates, rh, '<STR_LIT>', label='<STR_LIT>')<EOL>self.ax3.legend(loc='<STR_LIT>', bbox_to_anchor=(<NUM_LIT:0.5>, ...
Required input: RH: Relative humidity (%) Optional Input: plot_range: Data range for making figure (list of (min,max,step))
f8548:c0:m3
def plot_pressure(self, p, plot_range=None):
<EOL>if not plot_range:<EOL><INDENT>plot_range = [<NUM_LIT>, <NUM_LIT>, <NUM_LIT:2>]<EOL><DEDENT>self.ax4 = fig.add_subplot(<NUM_LIT:4>, <NUM_LIT:1>, <NUM_LIT:4>, sharex=self.ax1)<EOL>self.ax4.plot(self.dates, p, '<STR_LIT:m>', label='<STR_LIT>')<EOL>self.ax4.set_ylabel('<STR_LIT>', multialignment='<STR_LIT>')<EOL>self...
Required input: P: Mean Sea Level Pressure (hPa) Optional Input: plot_range: Data range for making figure (list of (min,max,step))
f8548:c0:m4
def get_root():
root = os.path.realpath(os.path.abspath(os.getcwd()))<EOL>setup_py = os.path.join(root, "<STR_LIT>")<EOL>versioneer_py = os.path.join(root, "<STR_LIT>")<EOL>if not (os.path.exists(setup_py) or os.path.exists(versioneer_py)):<EOL><INDENT>root = os.path.dirname(os.path.realpath(os.path.abspath(sys.argv[<NUM_LIT:0>])))<EO...
Get the project root directory. We require that all commands are run from the project root, i.e. the directory that contains setup.py, setup.cfg, and versioneer.py .
f8563:m0
def get_config_from_root(root):
<EOL>setup_cfg = os.path.join(root, "<STR_LIT>")<EOL>parser = configparser.SafeConfigParser()<EOL>with open(setup_cfg, "<STR_LIT:r>") as f:<EOL><INDENT>parser.readfp(f)<EOL><DEDENT>VCS = parser.get("<STR_LIT>", "<STR_LIT>") <EOL>def get(parser, name):<EOL><INDENT>if parser.has_option("<STR_LIT>", name):<EOL><INDENT>re...
Read the project setup.cfg file to determine Versioneer config.
f8563:m1
def register_vcs_handler(vcs, method):
def decorate(f):<EOL><INDENT>"""<STR_LIT>"""<EOL>if vcs not in HANDLERS:<EOL><INDENT>HANDLERS[vcs] = {}<EOL><DEDENT>HANDLERS[vcs][method] = f<EOL>return f<EOL><DEDENT>return decorate<EOL>
Decorator to mark a method as the handler for a particular VCS.
f8563:m2
def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False,<EOL>env=None):
assert isinstance(commands, list)<EOL>p = None<EOL>for c in commands:<EOL><INDENT>try:<EOL><INDENT>dispcmd = str([c] + args)<EOL>p = subprocess.Popen([c] + args, cwd=cwd, env=env,<EOL>stdout=subprocess.PIPE,<EOL>stderr=(subprocess.PIPE if hide_stderr<EOL>else None))<EOL>break<EOL><DEDENT>except EnvironmentError:<EOL><I...
Call the given command(s).
f8563:m3
@register_vcs_handler("<STR_LIT>", "<STR_LIT>")<EOL>def git_get_keywords(versionfile_abs):
<EOL>keywords = {}<EOL>try:<EOL><INDENT>f = open(versionfile_abs, "<STR_LIT:r>")<EOL>for line in f.readlines():<EOL><INDENT>if line.strip().startswith("<STR_LIT>"):<EOL><INDENT>mo = re.search(r'<STR_LIT>', line)<EOL>if mo:<EOL><INDENT>keywords["<STR_LIT>"] = mo.group(<NUM_LIT:1>)<EOL><DEDENT><DEDENT>if line.strip().sta...
Extract version information from the given file.
f8563:m4
@register_vcs_handler("<STR_LIT>", "<STR_LIT>")<EOL>def git_versions_from_keywords(keywords, tag_prefix, verbose):
if not keywords:<EOL><INDENT>raise NotThisMethod("<STR_LIT>")<EOL><DEDENT>date = keywords.get("<STR_LIT:date>")<EOL>if date is not None:<EOL><INDENT>date = date.strip().replace("<STR_LIT:U+0020>", "<STR_LIT:T>", <NUM_LIT:1>).replace("<STR_LIT:U+0020>", "<STR_LIT>", <NUM_LIT:1>)<EOL><DEDENT>refnames = keywords["<STR_LIT...
Get version information from git keywords.
f8563:m5
@register_vcs_handler("<STR_LIT>", "<STR_LIT>")<EOL>def git_pieces_from_vcs(tag_prefix, root, verbose, run_command=run_command):
GITS = ["<STR_LIT>"]<EOL>if sys.platform == "<STR_LIT:win32>":<EOL><INDENT>GITS = ["<STR_LIT>", "<STR_LIT>"]<EOL><DEDENT>out, rc = run_command(GITS, ["<STR_LIT>", "<STR_LIT>"], cwd=root,<EOL>hide_stderr=True)<EOL>if rc != <NUM_LIT:0>:<EOL><INDENT>if verbose:<EOL><INDENT>print("<STR_LIT>" % root)<EOL><DEDENT>raise NotTh...
Get version from 'git describe' in the root of the source tree. This only gets called if the git-archive 'subst' keywords were *not* expanded, and _version.py hasn't already been rewritten with a short version string, meaning we're inside a checked out source tree.
f8563:m6
def do_vcs_install(manifest_in, versionfile_source, ipy):
GITS = ["<STR_LIT>"]<EOL>if sys.platform == "<STR_LIT:win32>":<EOL><INDENT>GITS = ["<STR_LIT>", "<STR_LIT>"]<EOL><DEDENT>files = [manifest_in, versionfile_source]<EOL>if ipy:<EOL><INDENT>files.append(ipy)<EOL><DEDENT>try:<EOL><INDENT>me = __file__<EOL>if me.endswith("<STR_LIT>") or me.endswith("<STR_LIT>"):<EOL><INDENT...
Git-specific installation logic for Versioneer. For Git, this means creating/changing .gitattributes to mark _version.py for export-subst keyword substitution.
f8563:m7
def versions_from_parentdir(parentdir_prefix, root, verbose):
rootdirs = []<EOL>for i in range(<NUM_LIT:3>):<EOL><INDENT>dirname = os.path.basename(root)<EOL>if dirname.startswith(parentdir_prefix):<EOL><INDENT>return {"<STR_LIT:version>": dirname[len(parentdir_prefix):],<EOL>"<STR_LIT>": None,<EOL>"<STR_LIT>": False, "<STR_LIT:error>": None, "<STR_LIT:date>": None}<EOL><DEDENT>e...
Try to determine the version from the parent directory name. Source tarballs conventionally unpack into a directory that includes both the project name and a version string. We will also support searching up two directory levels for an appropriately named parent directory
f8563:m8
def versions_from_file(filename):
try:<EOL><INDENT>with open(filename) as f:<EOL><INDENT>contents = f.read()<EOL><DEDENT><DEDENT>except EnvironmentError:<EOL><INDENT>raise NotThisMethod("<STR_LIT>")<EOL><DEDENT>mo = re.search(r"<STR_LIT>",<EOL>contents, re.M | re.S)<EOL>if not mo:<EOL><INDENT>mo = re.search(r"<STR_LIT>",<EOL>contents, re.M | re.S)<EOL>...
Try to determine the version from _version.py if present.
f8563:m9
def write_to_version_file(filename, versions):
os.unlink(filename)<EOL>contents = json.dumps(versions, sort_keys=True,<EOL>indent=<NUM_LIT:1>, separators=("<STR_LIT:U+002C>", "<STR_LIT>"))<EOL>with open(filename, "<STR_LIT:w>") as f:<EOL><INDENT>f.write(SHORT_VERSION_PY % contents)<EOL><DEDENT>print("<STR_LIT>" % (filename, versions["<STR_LIT:version>"]))<EOL>
Write the given version number to the given _version.py file.
f8563:m10
def plus_or_dot(pieces):
if "<STR_LIT:+>" in pieces.get("<STR_LIT>", "<STR_LIT>"):<EOL><INDENT>return "<STR_LIT:.>"<EOL><DEDENT>return "<STR_LIT:+>"<EOL>
Return a + if we don't already have one, else return a .
f8563:m11
def render_pep440(pieces):
if pieces["<STR_LIT>"]:<EOL><INDENT>rendered = pieces["<STR_LIT>"]<EOL>if pieces["<STR_LIT>"] or pieces["<STR_LIT>"]:<EOL><INDENT>rendered += plus_or_dot(pieces)<EOL>rendered += "<STR_LIT>" % (pieces["<STR_LIT>"], pieces["<STR_LIT>"])<EOL>if pieces["<STR_LIT>"]:<EOL><INDENT>rendered += "<STR_LIT>"<EOL><DEDENT><DEDENT><...
Build up version string, with post-release "local version identifier". Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty Exceptions: 1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
f8563:m12
def render_pep440_pre(pieces):
if pieces["<STR_LIT>"]:<EOL><INDENT>rendered = pieces["<STR_LIT>"]<EOL>if pieces["<STR_LIT>"]:<EOL><INDENT>rendered += "<STR_LIT>" % pieces["<STR_LIT>"]<EOL><DEDENT><DEDENT>else:<EOL><INDENT>rendered = "<STR_LIT>" % pieces["<STR_LIT>"]<EOL><DEDENT>return rendered<EOL>
TAG[.post.devDISTANCE] -- No -dirty. Exceptions: 1: no tags. 0.post.devDISTANCE
f8563:m13