def plot_mask(gridid, Cpos='rho', proj=None, **kwargs):
# get grid
if type(gridid).__name__ == 'ROMS_Grid':
grd = gridid
else:
grd = pyroms.grid.get_ROMS_grid(gridid)
Cpos = str(Cpos)
print(Cpos)
# get grid information
if Cpos == 'rho':
lon = grd.hgrid.lon_vert
lat = grd.hgrid.lat_vert
mask = grd.hgrid.mask_rho
elif Cpos == 'u':
lon = 0.5 * (grd.hgrid.lon_vert[:,:-1] + grd.hgrid.lon_vert[:,1:])
lat = 0.5 * (grd.hgrid.lat_vert[:,:-1] + grd.hgrid.lat_vert[:,1:])
mask = grd.hgrid.mask_u
elif Cpos == 'v':
lon = 0.5 * (grd.hgrid.lon_vert[:-1,:] + grd.hgrid.lon_vert[1:,:])
lat = 0.5 * (grd.hgrid.lat_vert[:-1,:] + grd.hgrid.lat_vert[1:,:])
mask = grd.hgrid.mask_v
else:
raise Warning('Cpos must be rho, u or v')
# defined color map
land_color = kwargs.pop('land_color', (0.6, 1.0, 0.6))
sea_color = kwargs.pop('sea_color', (0.6, 0.6, 1.0))
cm = plt.matplotlib.colors.ListedColormap([land_color, sea_color],
name='land/sea')
if proj is None:
plt.pcolor(lon, lat, mask, cmap=cm, vmin=0, vmax=1, \
edgecolor='k', **kwargs)
pyroms_toolbox.plot_coast_line(grd)
else:
x, y = proj(lon, lat)
Basemap.pcolor(proj, x, y, mask, cmap=cm, vmin=0, vmax=1, \
edgecolor='k', **kwargs)
pyroms_toolbox.plot_coast_line(grd, proj=proj)
lon_min = lon.min()
lon_max = lon.max()
lat_min = lat.min()
lat_max = lat.max()
proj.drawmeridians(np.arange(lon_min,lon_max,(lon_max-lon_min)/5.001), \
labels=[0,0,0,1], fmt='%.1f')
proj.drawparallels(np.arange(lat_min,lat_max,(lat_max-lat_min)/5.001), \
labels=[1,0,0,0], fmt='%.1f')
def plot_mask(gridid, Cpos='rho', proj=None, **kwargs):
# get grid
if type(gridid).__name__ == 'ROMS_Grid':
grd = gridid
else:
grd = pyroms.grid.get_ROMS_grid(gridid)
Cpos = str(Cpos)
print Cpos
# get grid information
if Cpos == 'rho':
lon = grd.hgrid.lon_vert
lat = grd.hgrid.lat_vert
mask = grd.hgrid.mask_rho
elif Cpos == 'u':
lon = 0.5 * (grd.hgrid.lon_vert[:,:-1] + grd.hgrid.lon_vert[:,1:])
lat = 0.5 * (grd.hgrid.lat_vert[:,:-1] + grd.hgrid.lat_vert[:,1:])
mask = grd.hgrid.mask_u
elif Cpos == 'v':
lon = 0.5 * (grd.hgrid.lon_vert[:-1,:] + grd.hgrid.lon_vert[1:,:])
lat = 0.5 * (grd.hgrid.lat_vert[:-1,:] + grd.hgrid.lat_vert[1:,:])
mask = grd.hgrid.mask_v
else:
raise Warning, 'Cpos must be rho, u or v'
# defined color map
land_color = kwargs.pop('land_color', (0.6, 1.0, 0.6))
sea_color = kwargs.pop('sea_color', (0.6, 0.6, 1.0))
cm = plt.matplotlib.colors.ListedColormap([land_color, sea_color],
name='land/sea')
if proj is None:
plt.pcolor(lon, lat, mask, cmap=cm, vmin=0, vmax=1, \
edgecolor='k', **kwargs)
pyroms_toolbox.plot_coast_line(grd)
else:
x, y = proj(lon, lat)
Basemap.pcolor(proj, x, y, mask, cmap=cm, vmin=0, vmax=1, \
edgecolor='k', **kwargs)
pyroms_toolbox.plot_coast_line(grd, proj=proj)
lon_min = lon.min()
lon_max = lon.max()
lat_min = lat.min()
lat_max = lat.max()
proj.drawmeridians(np.arange(lon_min,lon_max,(lon_max-lon_min)/5.001), \
labels=[0,0,0,1], fmt='%.1f')
proj.drawparallels(np.arange(lat_min,lat_max,(lat_max-lat_min)/5.001), \
labels=[1,0,0,0], fmt='%.1f')
def create_monthly_mean_plot(data_array, plot_date, parameter):
grd = pyroms.grid.get_ROMS_grid('NWA')
lon = grd.hgrid.lon_rho
lat = grd.hgrid.lat_rho
plt.figure()
# plt.pcolor(lon, lat, daily_o2[0], vmin=bottom_min, vmax=bottom_max)
plt.pcolor(lon, lat, data_array, cmap='RdYlGn')
plt.colorbar()
plt.axis('image')
plt.title('{0} for {1}'.format(parameter, plot_date))
# Plot coastline
pyroms_toolbox.plot_coast_line(grd)
# Save plot
outfile = '/Users/jeewantha/Code/images/monthly_means/{0}_bottom_ver_1.png'.format(
parameter)
plt.savefig(outfile, dpi=300, orientation='portrait')
plt.close()
return True
def mean_o2():
filepath_1 = '/Volumes/P10/ROMS/NWA/NWA-SZ.HCob05T/1980/NWA-SZ.HCob05T_avg_1980-06-18T01:00:00.nc'
filepath_2 = '/Volumes/P10/ROMS/NWA/NWA-SZ.HCob05T/1980/NWA-SZ.HCob05T_avg_1980-06-19T01:00:00.nc'
o2_day_i = pyroms.utility.get_nc_var('o2', filepath_1)[0]
o2_day_ii = pyroms.utility.get_nc_var('o2', filepath_2)[0]
# How to access the layers -> o2_day_i[0] is the bottom, [-1] is the surface
# np.mean( np.array([ old_set, new_set ]), axis=0 )
# Remember that these are Masked Arrays
o2_mean = np.mean(ma.array([o2_day_i, o2_day_ii]), axis=0)
grd = pyroms.grid.get_ROMS_grid('NWA')
lon = grd.hgrid.lon_rho
lat = grd.hgrid.lat_rho
# Plot 2-D view of [O2] at the bottom
plt.figure()
plt.pcolor(lon, lat, o2_mean[-1])
plt.colorbar()
plt.axis('image')
# Plot coastline
pyroms_toolbox.plot_coast_line(grd)
# Save plot
outfile = 'o2_mean_surface.png'
plt.savefig(outfile, dpi=300, orientation='portrait')
# Plot single
plt.figure()
plt.pcolor(lon, lat, o2_day_ii[-1])
plt.colorbar()
plt.axis('image')
# Plot coastline
pyroms_toolbox.plot_coast_line(grd)
# Save plot
outfile = 'o2_surface_06_19.png'
plt.savefig(outfile, dpi=300, orientation='portrait')
def zview(var, tindex, depth, grid, filename=None, \
cmin=None, cmax=None, clev=None, clb_format='%.2f', \
fill=False, contour=False, d=4, range=None, fts=None, \
title=None, clb=True, pal=None, proj='merc', \
fill_land=False, outfile=None):
"""
map = zview(var, tindex, depth, grid, {optional switch})
optional switch:
- filename if defined, load the variable from file
- cmin set color minimum limit
- cmax set color maximum limit
- clev set the number of color step
- fill use contourf instead of pcolor
- contour overlay contour (request fill=True)
- range set axis limit
- fts set font size (default: 12)
- title add title to the plot
- clb add colorbar (defaul: True)
- pal set color map (default: cm.jet)
- proj set projection type (default: merc)
- fill_land fill land masked area with gray (defaul: True)
- outfile if defined, write figure to file
plot a constant-z slice of variable var. If filename is provided,
var must be a string and the variable will be load from the file.
grid can be a grid object or a gridid. In the later case, the grid
object correponding to the provided gridid will be loaded.
If proj is not None, return a Basemap object to be used with quiver
for example.
"""
# get grid
if type(grid).__name__ == 'ROMS_Grid':
grd = grid
else:
grd = pyroms.grid.get_ROMS_grid(grid)
# get variable
if filename == None:
var = var
else:
data = pyroms.io.Dataset(filename)
var = data.variables[var]
Np, Mp, Lp = grd.vgrid.z_r[0,:].shape
if tindex is not -1:
assert len(var.shape) == 4, 'var must be 4D (time plus space).'
K, N, M, L = var.shape
else:
assert len(var.shape) == 3, 'var must be 3D (no time dependency).'
N, M, L = var.shape
# determine where on the C-grid these variable lies
if N == Np and M == Mp and L == Lp:
Cpos='rho'
mask = grd.hgrid.mask_rho
if N == Np and M == Mp and L == Lp-1:
Cpos='u'
mask = grd.hgrid.mask_u
if N == Np and M == Mp-1 and L == Lp:
Cpos='v'
mask = grd.hgrid.mask_v
# get constante-z slice
if tindex == -1:
var = var[:,:,:]
else:
var = var[tindex,:,:,:]
depth = -abs(depth)
if fill == True:
zslice, lon, lat = pyroms.tools.zslice(var, depth, grd, \
Cpos=Cpos)
else:
zslice, lon, lat = pyroms.tools.zslice(var, depth, grd, \
Cpos=Cpos, vert=True)
# plot
if cmin is None:
cmin = zslice.min()
else:
cmin = float(cmin)
if cmax is None:
cmax = zslice.max()
else:
cmax = float(cmax)
if clev is None:
clev = 100.
else:
clev = float(clev)
dc = (cmax - cmin)/clev ; vc = np.arange(cmin,cmax+dc,dc)
if pal is None:
pal = cm.jet
else:
pal = pal
if fts is None:
fts = 12
else:
fts = fts
#pal.set_over('w', 1.0)
#pal.set_under('w', 1.0)
#pal.set_bad('w', 1.0)
pal_norm = colors.BoundaryNorm(vc,ncolors=256, clip = False)
if range is None:
lon_min = lon.min()
lon_max = lon.max()
lon_0 = (lon_min + lon_max) / 2.
lat_min = lat.min()
lat_max = lat.max()
lat_0 = (lat_min + lat_max) / 2.
else:
lon_min = range[0]
lon_max = range[1]
lon_0 = (lon_min + lon_max) / 2.
lat_min = range[2]
lat_max = range[3]
lat_0 = (lat_min + lat_max) / 2.
# clear figure
#plt.clf()
if proj is not None:
map = Basemap(projection=proj, llcrnrlon=lon_min, llcrnrlat=lat_min, \
urcrnrlon=lon_max, urcrnrlat=lat_max, lat_0=lat_0, lon_0=lon_0, \
resolution='h', area_thresh=5.)
#map = pyroms.utility.get_grid_proj(grd, type=proj)
x, y = map(lon,lat)
if fill_land is True and proj is not None:
# fill land and draw coastlines
map.drawcoastlines()
map.fillcontinents(color='grey')
else:
if proj is not None:
Basemap.pcolor(map, x, y, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd, map)
else:
plt.pcolor(lon, lat, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd)
if fill is True:
if proj is not None:
cf = Basemap.contourf(map, x, y, zslice, vc, cmap = pal, \
norm = pal_norm)
else:
cf = plt.contourf(lon, lat, zslice, vc, cmap = pal, \
norm = pal_norm)
else:
if proj is not None:
cf = Basemap.pcolor(map, x, y, zslice, cmap = pal, norm = pal_norm)
else:
cf = plt.pcolor(lon, lat, zslice, cmap = pal, norm = pal_norm)
if clb is True:
clb = plt.colorbar(cf, fraction=0.075,format=clb_format)
for t in clb.ax.get_yticklabels():
t.set_fontsize(fts)
if contour is True:
if fill is not True:
raise Warning, 'Please run again with fill=True to overlay contour.'
else:
if proj is not None:
Basemap.contour(map, x, y, zslice, vc[::d], colors='k', linewidths=0.5, linestyles='solid')
else:
plt.contour(lon, lat, zslice, vc[::d], colors='k', linewidths=0.5, linestyles='solid')
if proj is None and range is not None:
plt.axis(range)
if title is not None:
plt.title(title, fontsize=fts+4)
if proj is not None:
map.drawmeridians(np.arange(lon_min,lon_max, (lon_max-lon_min)/5.001), \
labels=[0,0,0,1], fmt='%.1f')
map.drawparallels(np.arange(lat_min,lat_max, (lat_max-lat_min)/5.001), \
labels=[1,0,0,0], fmt='%.1f')
if outfile is not None:
if outfile.find('.png') != -1 or outfile.find('.svg') != -1 or \
outfile.find('.eps') != -1:
print 'Write figure to file', outfile
plt.savefig(outfile, dpi=200, facecolor='w', edgecolor='w', \
orientation='portrait')
else:
print 'Unrecognized file extension. Please use .png, .svg or .eps file extension.'
if proj is None:
return
else:
return map
def isoview(var, prop, tindex, isoval, grid, filename=None, \
cmin=None, cmax=None, clev=None, fill=False, \
contour=False, d=4, range=None, fts=None, \
title=None, clb=True, pal=None, proj='merc', \
fill_land=False, outfile=None):
"""
map = isoview(var, prop, tindex, isoval, grid, {optional switch})
optional switch:
- filename if defined, load the variable from file
- cmin set color minimum limit
- cmax set color maximum limit
- clev set the number of color step
- fill use contourf instead of pcolor
- contour overlay contour (request fill=True)
- d contour density (default d=4)
- range set axis limit
- fts set font size (default: 12)
- title add title to the plot
- clb add colorbar (defaul: True)
- pal set color map (default: cm.jet)
- proj set projection type (default: merc)
- fill_land fill land masked area with gray (defaul: True)
- outfile if defined, write figure to file
plot a projection of variable at property == isoval. If filename
is provided, var and prop must be a strings and the variables will
be load from the file.
grid can be a grid object or a gridid. In the later case, the grid
object correponding to the provided gridid will be loaded.
If proj is not None, return a Basemap object to be used with quiver
for example.
"""
# get grid
if type(grid).__name__ == 'ROMS_Grid':
grd = grid
else:
grd = pyroms.grid.get_ROMS_grid(grid)
# get variable
if filename == None:
var = var
prop = prop
else:
data = pyroms.io.Dataset(filename)
var = data.variables[var]
prop = data.variables[prop]
Np, Mp, Lp = grd.vgrid.z_r[0, :].shape
if tindex is not -1:
assert len(var.shape) == 4, 'var must be 4D (time plus space).'
K, N, M, L = var.shape
else:
assert len(var.shape) == 3, 'var must be 3D (no time dependency).'
N, M, L = var.shape
# determine where on the C-grid these variable lies
if N == Np and M == Mp and L == Lp:
Cpos = 'rho'
mask = grd.hgrid.mask_rho
if N == Np and M == Mp and L == Lp - 1:
Cpos = 'u'
mask = grd.hgrid.mask_u
if N == Np and M == Mp - 1 and L == Lp:
Cpos = 'v'
mask = grd.hgrid.mask_v
# get constante-iso slice
if tindex == -1:
var = var[:, :, :]
prop = prop[:, :, :]
else:
var = var[tindex, :, :, :]
prop = prop[tindex, :, :, :]
if fill == True:
isoslice, lon, lat = pyroms.tools.isoslice(var, prop, isoval, \
grd, Cpos=Cpos)
else:
isoslice, lon, lat = pyroms.tools.isoslice(var, prop, isoval, \
grd, Cpos=Cpos, vert=True)
# plot
if cmin is None:
cmin = isoslice.min()
else:
cmin = float(cmin)
if cmax is None:
cmax = isoslice.max()
else:
cmax = float(cmax)
if clev is None:
clev = 100.
else:
clev = float(clev)
dc = (cmax - cmin) / clev
vc = np.arange(cmin, cmax + dc, dc)
if pal is None:
pal = cm.jet
else:
pal = pal
if fts is None:
fts = 12
else:
fts = fts
#pal.set_over('w', 1.0)
#pal.set_under('w', 1.0)
#pal.set_bad('w', 1.0)
pal_norm = colors.BoundaryNorm(vc, ncolors=256, clip=False)
if range is None:
lon_min = lon.min()
lon_max = lon.max()
lon_0 = (lon_min + lon_max) / 2.
lat_min = lat.min()
lat_max = lat.max()
lat_0 = (lat_min + lat_max) / 2.
else:
lon_min = range[0]
lon_max = range[1]
lon_0 = (lon_min + lon_max) / 2.
lat_min = range[2]
lat_max = range[3]
lat_0 = (lat_min + lat_max) / 2.
# clear figure
#plt.clf()
if proj is not None:
map = Basemap(projection=proj, llcrnrlon=lon_min, llcrnrlat=lat_min, \
urcrnrlon=lon_max, urcrnrlat=lat_max, lat_0=lat_0, lon_0=lon_0, \
resolution='h', area_thresh=5.)
#map = pyroms.utility.get_grid_proj(grd, type=proj)
x, y = list(map(lon, lat))
if fill_land is True and proj is not None:
# fill land and draw coastlines
map.drawcoastlines()
map.fillcontinents(color='grey')
else:
if proj is not None:
Basemap.pcolor(map, x, y, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd, map)
else:
plt.pcolor(lon, lat, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd)
if fill is True:
if proj is not None:
cf = Basemap.contourf(map, x, y, isoslice, vc, cmap = pal, \
norm = pal_norm)
else:
cf = plt.contourf(lon, lat, isoslice, vc, cmap = pal, \
norm = pal_norm)
else:
if proj is not None:
cf = Basemap.pcolor(map, x, y, isoslice, cmap=pal, norm=pal_norm)
else:
cf = plt.pcolor(lon, lat, isoslice, cmap=pal, norm=pal_norm)
if clb is True:
clb = plt.colorbar(cf, fraction=0.075, format='%.2f')
for t in clb.ax.get_yticklabels():
t.set_fontsize(fts)
if contour is True:
if fill is not True:
raise Warning(
'Please run again with fill=True to overlay contour.')
else:
if proj is not None:
Basemap.contour(map,
x,
y,
isoslice,
vc[::d],
colors='k',
linewidths=0.5,
linestyles='solid')
else:
plt.contour(lon,
lat,
isoslice,
vc[::d],
colors='k',
linewidths=0.5,
linestyles='solid')
if proj is None and range is not None:
plt.axis(range)
if title is not None:
plt.title(title, fontsize=fts + 4)
if proj is not None:
map.drawmeridians(np.arange(lon_min,lon_max, (lon_max-lon_min)/5.), \
labels=[0,0,0,1], fmt='%.1f')
map.drawparallels(np.arange(lat_min,lat_max, (lat_max-lat_min)/5.), \
labels=[1,0,0,0], fmt='%.1f')
if outfile is not None:
if outfile.find('.png') != -1 or outfile.find('.svg') != -1 or \
outfile.find('.eps') != -1:
print('Write figure to file', outfile)
plt.savefig(outfile, dpi=200, facecolor='w', edgecolor='w', \
orientation='portrait')
else:
print(
'Unrecognized file extension. Please use .png, .svg or .eps file extension.'
)
if proj is None:
return
else:
return map
# print(np.max(daily_o2[-1]))
surface_min_list.append(np.min(daily_o2[-1]))
bottom_max_list.append(np.max(daily_o2[0]))
bottom_min_list.append(np.min(daily_o2[0]))
print("Surface Max: {0} mol/kg".format(max(surface_max_list)))
print("Surface Min: {0} mol/kg".format(min(surface_min_list)))
print("Bottom Max: {0} mol/kg".format(max(bottom_max_list)))
print("Bottom Min: {0} mol/kg".format(min(bottom_min_list)))
surface_max = max(surface_max_list)
surface_min = min(surface_min_list)
bottom_max = max(bottom_max_list)
bottom_min = min(bottom_min_list)
# Plot everything
i = 1
for daily_file in june_list:
daily_o2 = pyroms.utility.get_nc_var('o2', daily_file)[0]
plt.figure()
# plt.pcolor(lon, lat, daily_o2[0], vmin=bottom_min, vmax=bottom_max)
plt.pcolor(lon, lat, daily_o2[-1], vmin=surface_min, vmax=surface_max, cmap='RdYlGn')
plt.colorbar()
plt.axis('image')
plt.title('{0}'.format(i))
# Plot coastline
pyroms_toolbox.plot_coast_line(grd)
# Save plot
outfile = '/Users/jeewantha/Code/images/1982_06/o2_surface_{0:03d}.png'.format(i)
plt.savefig(outfile, dpi=300, orientation='portrait')
plt.close()
i = i + 1
def twoDview(
var,
tindex,
grid,
filename=None,
cmin=None,
cmax=None,
clev=None,
fill=False,
contour=False,
d=4,
range=None,
fts=None,
title=None,
clb=True,
pal=None,
proj="merc",
fill_land=False,
outfile=None,
):
"""
map = twoDview(var, tindex, grid, {optional switch})
optional switch:
- filename if defined, load the variable from file
- cmin set color minimum limit
- cmax set color maximum limit
- clev set the number of color step
- fill use contourf instead of pcolor
- contour overlay contour (request fill=True)
- d contour density (default d=4)
- range set axis limit
- fts set font size (default: 12)
- title add title to the plot
- clb add colorbar (defaul: True)
- pal set color map (default: cm.jet)
- proj set projection type (default: merc)
- fill_land fill land masked area with gray (defaul: True)
- outfile if defined, write figure to file
plot 2-dimensions variable var. If filename is provided,
var must be a string and the variable will be load from the file.
grid can be a grid object or a gridid. In the later case, the grid
object correponding to the provided gridid will be loaded.
If proj is not None, return a Basemap object to be used with quiver
for example.
"""
# get grid
if type(grid).__name__ == "ROMS_Grid":
grd = grid
else:
grd = pyroms.grid.get_ROMS_grid(grid)
# get variable
if filename == None:
var = var
else:
data = pyroms.io.Dataset(filename)
var = data.variables[var]
Np, Mp, Lp = grd.vgrid.z_r[0, :].shape
if tindex is not -1:
assert len(var.shape) == 3, "var must be 3D (time plus space)."
K, M, L = var.shape
else:
assert len(var.shape) == 2, "var must be 2D (no time dependency)."
M, L = var.shape
# determine where on the C-grid these variable lies
if M == Mp and L == Lp:
Cpos = "rho"
if fill == True:
lon = grd.hgrid.lon_rho
lat = grd.hgrid.lat_rho
else:
lon = grd.hgrid.lon_vert
lat = grd.hgrid.lat_vert
mask = grd.hgrid.mask_rho
if M == Mp and L == Lp - 1:
Cpos = "u"
if fill == True:
lon = grd.hgrid.lon_u
lat = grd.hgrid.lat_u
else:
lon = 0.5 * (grd.hgrid.lon_vert[:, :-1] + grd.hgrid.lon_vert[:, 1:])
lat = 0.5 * (grd.hgrid.lat_vert[:, :-1] + grd.hgrid.lat_vert[:, 1:])
mask = grd.hgrid.mask_u
if M == Mp - 1 and L == Lp:
Cpos = "v"
if fill == True:
lon = grd.hgrid.lon_v
lat = grd.hgrid.lat_v
else:
lon = 0.5 * (grd.hgrid.lon_vert[:-1, :] + grd.hgrid.lon_vert[1:, :])
lat = 0.5 * (grd.hgrid.lat_vert[:-1, :] + grd.hgrid.lat_vert[1:, :])
mask = grd.hgrid.mask_v
# get 2D var
if tindex == -1:
var = var[:, :]
else:
var = var[tindex, :, :]
# mask
var = np.ma.masked_where(mask == 0, var)
# plot
if cmin is None:
cmin = var.min()
else:
cmin = float(cmin)
if cmax is None:
cmax = var.max()
else:
cmax = float(cmax)
if clev is None:
clev = 100.0
else:
clev = float(clev)
dc = (cmax - cmin) / clev
vc = np.arange(cmin, cmax + dc, dc)
if pal is None:
pal = cm.jet
else:
pal = pal
if fts is None:
fts = 12
else:
fts = fts
# pal.set_over('w', 1.0)
# pal.set_under('w', 1.0)
# pal.set_bad('w', 1.0)
pal_norm = colors.BoundaryNorm(vc, ncolors=256, clip=False)
if range is None:
lon_min = lon.min()
lon_max = lon.max()
lon_0 = (lon_min + lon_max) / 2.0
lat_min = lat.min()
lat_max = lat.max()
lat_0 = (lat_min + lat_max) / 2.0
else:
lon_min = range[0]
lon_max = range[1]
lon_0 = (lon_min + lon_max) / 2.0
lat_min = range[2]
lat_max = range[3]
lat_0 = (lat_min + lat_max) / 2.0
# clear figure
# plt.clf()
if proj is not None:
map = Basemap(
projection=proj,
llcrnrlon=lon_min,
llcrnrlat=lat_min,
urcrnrlon=lon_max,
urcrnrlat=lat_max,
lat_0=lat_0,
lon_0=lon_0,
resolution="h",
area_thresh=5.0,
)
x, y = map(lon, lat)
if fill_land is True and proj is not None:
# fill land and draw coastlines
map.drawcoastlines()
map.fillcontinents(color="grey")
else:
if proj is not None:
Basemap.pcolor(map, x, y, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd, map)
else:
plt.pcolor(lon, lat, mask, vmin=-2, cmap=cm.gray)
pyroms_toolbox.plot_coast_line(grd)
if fill is True:
if proj is not None:
cf = Basemap.contourf(map, x, y, var, vc, cmap=pal, norm=pal_norm)
else:
cf = plt.contourf(lon, lat, var, vc, cmap=pal, norm=pal_norm)
else:
if proj is not None:
cf = Basemap.pcolor(map, x, y, var, cmap=pal, norm=pal_norm)
else:
cf = plt.pcolor(lon, lat, var, cmap=pal, norm=pal_norm)
if clb is True:
clb = plt.colorbar(cf, fraction=0.075, format="%.2f")
for t in clb.ax.get_yticklabels():
t.set_fontsize(fts)
if contour is True:
if fill is not True:
raise Warning, "Please run again with fill=True to overlay contour."
else:
if proj is not None:
Basemap.contour(map, x, y, var, vc[::d], colors="k", linewidths=0.5, linestyles="solid")
else:
plt.contour(lon, lat, var, vc[::d], colors="k", linewidths=0.5, linestyles="solid")
if proj is None and range is not None:
plt.axis(range)
if title is not None:
plt.title(title, fontsize=fts + 4)
if proj is not None:
map.drawmeridians(np.arange(lon_min, lon_max, (lon_max - lon_min) / 5.0), labels=[0, 0, 0, 1], fmt="%.1f")
map.drawparallels(np.arange(lat_min, lat_max, (lat_max - lat_min) / 5.0), labels=[1, 0, 0, 0], fmt="%.1f")
if outfile is not None:
if outfile.find(".png") != -1 or outfile.find(".svg") != -1 or outfile.find(".eps") != -1:
print "Write figure to file", outfile
plt.savefig(outfile, dpi=200, facecolor="w", edgecolor="w", orientation="portrait")
else:
print "Unrecognized file extension. Please use .png, .svg or .eps file extension."
if proj is None:
return
else:
return map
