def make_3im_png(data3, pngfile, cmap, title3, vmin=None, vmax=None, cbar=True):
"""
Make png with 3 images for comparison.
data3 and title3 must be list with 3 elements.
cmap can be 'insar'. To wrap data, np.angle(np.exp(1j*x/cycle)*cycle)
"""
### Plot setting
if cmap=='insar':
cdict = tools_lib.cmap_insar()
plt.register_cmap(name='insar',data=cdict)
length, width = data3[0].shape
figsizex = 12
xmergin = 4 if cbar else 0
figsizey = int((figsizex-xmergin)/3*length/width)+2
fig = plt.figure(figsize = (figsizex, figsizey))
for i in range(3):
ax = fig.add_subplot(1, 3, i+1) #index start from 1
im = ax.imshow(data3[i], vmin=vmin, vmax=vmax, cmap=cmap)
ax.set_title(title3[i])
ax.set_xticklabels([])
ax.set_yticklabels([])
if cbar: fig.colorbar(im, ax=ax)
plt.tight_layout()
plt.savefig(pngfile)
plt.close()
return
def make_im_png(data, pngfile, cmap, title, vmin=None, vmax=None, cbar=True):
"""
Make png image.
cmap can be 'insar'. To wrap data, np.angle(np.exp(1j*x/cycle)*cycle)
"""
if cmap=='insar':
cdict = tools_lib.cmap_insar()
plt.register_cmap(name='insar',data=cdict)
length, width = data.shape
figsizex = 8
xmergin = 2 if cbar else 0
figsizey = int((figsizex-xmergin)*(length/width))+1
### Plot
fig, ax = plt.subplots(1, 1, figsize=(figsizex, figsizey))
plt.tight_layout()
im = ax.imshow(data, vmin=vmin, vmax=vmax, cmap=cmap)
ax.set_xticklabels([])
ax.set_yticklabels([])
ax.set_title(title)
if cbar: fig.colorbar(im)
plt.savefig(pngfile)
plt.close()
return
def make_loop_png(ifgd12, ifgd23, ifgd13, unw12, unw23, unw13, loop_ph,
loop_pngdir):
### Load color map for InSAR
cdict = tools_lib.cmap_insar()
plt.register_cmap(name='insar', data=cdict)
rms = np.sqrt(np.nanmean(loop_ph**2))
### Settings
imd1 = ifgd12[:8]
imd2 = ifgd23[:8]
imd3 = ifgd23[-8:]
pngname = os.path.join(loop_pngdir,
imd1 + '_' + imd2 + '_' + imd3 + '_loop.png')
cycle = 3 # 2pi*3/cycle
titles = [ifgd12, ifgd23, ifgd13]
data = [unw12, unw23, unw13]
length, width = unw12.shape
if length > width:
figsize_y = 10
figsize_x = int((figsize_y - 1) * width / length)
if figsize_x < 5: figsize_x = 5
else:
figsize_x = 10
figsize_y = int(figsize_x * length / width + 1)
if figsize_y < 3: figsize_y = 3
### Plot
fig = plt.figure(figsize=(figsize_x, figsize_y))
## 3 ifgs
for i in range(3):
data_wrapped = np.angle(np.exp(1j * (data[i] / cycle)) * cycle)
ax = fig.add_subplot(2, 2, i + 1) #index start from 1
ax.imshow(data_wrapped, vmin=-np.pi, vmax=+np.pi, cmap='insar')
ax.set_title('{}'.format(titles[i]))
ax.set_xticklabels([])
ax.set_yticklabels([])
## loop phase
ax = fig.add_subplot(2, 2, 4) #index start from 1
ax.imshow(loop_ph, vmin=-np.pi, vmax=+np.pi, cmap=SCM.vik)
ax.set_title('Loop phase (RMS={:.2f}rad)'.format(rms))
ax.set_xticklabels([])
ax.set_yticklabels([])
plt.tight_layout()
plt.savefig(pngname)
plt.close()
def make_loop_png(unw12, unw23, unw13, loop_ph, png, titles4, cycle):
### Load color map for InSAR
cdict = tools_lib.cmap_insar()
plt.register_cmap(cmap=mpl.colors.LinearSegmentedColormap('insar', cdict))
plt.rcParams['axes.titlesize'] = 10
### Settings
data = [unw12, unw23, unw13]
length, width = unw12.shape
if length > width:
figsize_y = 10
figsize_x = int((figsize_y - 1) * width / length)
if figsize_x < 5: figsize_x = 5
else:
figsize_x = 10
figsize_y = int(figsize_x * length / width + 1)
if figsize_y < 3: figsize_y = 3
### Plot
fig = plt.figure(figsize=(figsize_x, figsize_y))
## 3 ifgs
for i in range(3):
data_wrapped = np.angle(np.exp(1j * (data[i] / cycle)) * cycle)
ax = fig.add_subplot(2, 2, i + 1) #index start from 1
ax.imshow(data_wrapped,
vmin=-np.pi,
vmax=+np.pi,
cmap='insar',
interpolation='nearest')
ax.set_title('{}'.format(titles4[i]))
ax.set_xticklabels([])
ax.set_yticklabels([])
## loop phase
ax = fig.add_subplot(2, 2, 4) #index start from 1
ax.imshow(loop_ph,
vmin=-np.pi,
vmax=+np.pi,
cmap=SCM.vik,
interpolation='nearest')
ax.set_title('{}'.format(titles4[3]))
ax.set_xticklabels([])
ax.set_yticklabels([])
plt.tight_layout()
plt.savefig(png)
plt.close()
raise Usage('No {} exists!'.format(infile))
except Usage as err:
print("\nERROR:", file=sys.stderr, end='')
print(" " + str(err.msg), file=sys.stderr)
print("\nFor help, use -h or --help.\n", file=sys.stderr)
sys.exit(2)
#%% Set cmap if SCM
if cmap_name.startswith('SCM'):
if cmap_name.endswith('_r'):
exec("cmap = {}.reversed()".format(cmap_name[:-2]))
else:
exec("cmap = {}".format(cmap_name))
elif cmap_name == 'insar':
cdict = tools_lib.cmap_insar()
plt.register_cmap(
cmap=mpl.colors.LinearSegmentedColormap('insar', cdict))
cmap = 'insar'
else:
cmap = cmap_name
#%% Get info and Read data
if gdal.IdentifyDriver(infile): ## If Geotiff or grd
geotiff = gdal.Open(infile)
data = geotiff.ReadAsArray()
if data.ndim > 2:
print('\nERROR: {} has multiple bands and cannot be displayed.\n'.
format(infile),
file=sys.stderr)
sys.exit(2)
