Esempio n. 1
0
def plot(xx,
         yy,
         target,
         label,
         figfiles,
         figfile,
         lon=None,
         lat=None,
         show=False):
    xs, ys, mask = coord2slice(target, lon=lon, lat=lat)
    P.figure(figsize=(6, 3.5))
    P.title('Target=%(label)s / select: lon=%(lon)s, lat=%(lat)s' % locals())
    add_grid((xx, yy))
    xx = xx.asma()
    yy = yy.asma()
    if isinstance(lon, tuple):
        P.axvline(lon[0], color='m', ls='--', lw=2)
        P.axvline(lon[1], color='m', ls='--', lw=2)
    elif isinstance(lon, slice):
        i, j, k = lon.indices(xx.shape[1])
        P.plot(xx[:, i], yy[:, i], 'c--', lw=2)
        P.plot(xx[:, j - 1], yy[:, j - 1], 'c--', lw=2)
    if isinstance(lat, tuple):
        P.axhline(lat[0], color='m', ls='--', lw=2)
        P.axhline(lat[1], color='m', ls='--', lw=2)
    elif isinstance(lat, slice):
        i, j, k = lat.indices(yy.shape[0])
        P.plot(xx[i], yy[i], 'c--', lw=2)
        P.plot(xx[j - 1], yy[j - 1], 'c--', lw=2)
    P.xticks(N.arange(xx.min() - 1, xx.max() + 1))
    P.yticks(N.arange(yy.min() - 1, yy.max() + 1))
    xxi, yyi = xx, yy
    xx = xx[ys, xs]
    yy = yy[ys, xs]
    #    mask = mask[ys, xs]
    xxb, yyb = meshbounds(xx, yy)
    P.pcolormesh(xxb, yyb, mask, shading='faceted')
    P.scatter(xx.ravel(), yy.ravel(), c=(0, 1, 0))
    P.grid(True)
    P.axis('image')
    P.tight_layout()
    i = len(figfiles)
    savefig = figfile % i
    if os.path.exists(savefig): os.remove(savefig)
    P.savefig(savefig)
    figfiles.append(savefig)
    if show: P.show()
    else: P.close()
def plot(xx, yy, target, label, figfiles, figfile, lon=None, lat=None, show=False):
    xs, ys, mask = coord2slice(target, lon=lon, lat=lat)
    P.figure(figsize=(6, 3.5))
    P.title('Target=%(label)s / select: lon=%(lon)s, lat=%(lat)s'%locals())
    add_grid((xx, yy))
    xx = xx.asma()
    yy = yy.asma()
    if isinstance(lon, tuple): 
        P.axvline(lon[0], color='m', ls='--', lw=2)
        P.axvline(lon[1], color='m', ls='--', lw=2)
    elif isinstance(lon, slice):
        i, j, k = lon.indices(xx.shape[1])
        P.plot(xx[:, i], yy[:, i], 'c--', lw=2)
        P.plot(xx[:, j-1], yy[:, j-1], 'c--', lw=2)
    if isinstance(lat, tuple): 
        P.axhline(lat[0], color='m', ls='--', lw=2)
        P.axhline(lat[1], color='m', ls='--', lw=2)
    elif isinstance(lat, slice):
        i, j, k = lat.indices(yy.shape[0])
        P.plot(xx[i], yy[i], 'c--', lw=2)
        P.plot(xx[j-1], yy[j-1], 'c--', lw=2)
    P.xticks(N.arange(xx.min()-1, xx.max()+1))
    P.yticks(N.arange(yy.min()-1, yy.max()+1))
    xxi, yyi = xx, yy
    xx = xx[ys, xs]
    yy = yy[ys, xs]
#    mask = mask[ys, xs]
    xxb, yyb = meshbounds(xx, yy)
    P.pcolor(xxb, yyb, mask, shading='faceted')
    P.scatter(xx.ravel(), yy.ravel(), c=(0, 1, 0))
    P.grid('on')
    P.axis('image')
    P.tight_layout()
    i = len(figfiles)
    savefig = figfile%i
    if os.path.exists(savefig): os.remove(savefig)
    P.savefig(savefig)
    figfiles.append(savefig)
    if show: P.show()
    else: P.close()
"""Test :meth:`~vacumm.data.misc.OceanDataset.plot_hsection` with MFS"""

# Inits
ncfile = "mfs.nc"
depth = -1000.0

# Imports
from vcmq import DS, data_sample, os, code_file_name

# Setup dataset
ds = DS(data_sample(ncfile), "nemo", logger_level="critical")

# Plot hsection
figfile = code_file_name(ext="png")
if os.path.exists(figfile):
    os.remove(figfile)
ds.plot_hsection("temp", depth, savefig=figfile, fill="contourf", show=False, close=True)
yyob, xxob  = meshcells(yyo, x)

varon = N.ma.masked_values(interp1dxx(vari.filled(), yyi, yyo, mv, 0, extrap=0), mv)
varol = N.ma.masked_values(interp1dxx(vari.filled(), yyi, yyo, mv, 1, extrap=0), mv)
varoh = N.ma.masked_values(interp1dxx(vari.filled(), yyi, yyo, mv, 3, extrap=0), mv)

kw = dict(vmin=vari.min(), vmax=vari.max())
axlims = [x[0], x[-1], yo[0], yo[-1]]
P.figure(figsize=(8, 8))
P.subplot(221)
P.pcolor(xxib, yyib, vari)
P.axis(axlims)
P.title('Original')
P.subplot(222)
P.pcolor(xxob, yyob, varon, **kw)
P.axis(axlims)
P.title('Nearest1dxx')
P.subplot(223)
P.pcolor(xxob, yyob, varol, **kw)
P.axis(axlims)
P.title('Linear1dxx')
P.subplot(224)
P.pcolor(xxob, yyob, varoh, **kw)
P.axis(axlims)
P.title('Hermit1dxx')
P.tight_layout()
figfile = code_file_name(ext='png')
if os.path.exists(figfile): os.remove(figfile)
P.savefig(figfile)
P.close()
Esempio n. 5
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"""Test :func:`~vacumm.misc.plot.add_logo`"""

# Imports
from vcmq import N, P, add_logo, os, code_file_name, data_sample
import matplotlib.image as mpimg

# Inits
logofile = data_sample('logo_ifremer.png')
P.plot([2, 6])

# Default
add_logo(logofile, scale=1)

# Upper right / no rescale
add_logo(logofile, loc='upper right')

# Rescale
add_logo(logofile, loc='upper left', scale=2)

# Alpha
add_logo(logofile, loc='lower right', alpha=0.2)

# Save
figfile = code_file_name(ext='png')
if os.path.exists(figfile): os.remove(figfile)
P.savefig(figfile)
Esempio n. 6
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from time import time

# Input
nx = ny = 300
vari = MV2.array(N.arange(nx*ny*1.).reshape(ny, nx))
gridi = create_grid2d(vari.getAxis(1)[:]*50/nx,  vari.getAxis(0)[:]*50/nx)
set_grid(vari, gridi)

# Output grid
gridor = create_grid2d(vari.getAxis(1)[:]*0.09*50/nx,  
    vari.getAxis(0)[:]*0.09*50/nx)
gridoc = rotate_grid(gridi, 30)

# Log
logfile = code_file_name(ext='log')
if os.path.exists(logfile): os.remove(logfile)
f = open(logfile, 'w')
print >>f, 'NY=%(ny)i, NX=%(nx)i'%locals()

# Loop on methods
for tool, methods in config.items():
    for method in methods:
#        print tool.upper(), method
        print >>f, tool.upper(), method
        
        # rect...
        t0 = time()
        r = CDATRegridder(vari, gridor, tool=tool, method=method)
        t1 = time()
        dt = t1-t0
        varo = r(vari)