Commit 012f4643 authored by Martin Reinecke's avatar Martin Reinecke

plotting tweaks

parent 96a90817
......@@ -4,7 +4,7 @@ import numpy as np
def plot_test():
rg_space1 = ift.makeDomain(ift.RGSpace((100,)))
rg_space2 = ift.makeDomain(ift.RGSpace((80, 80)))
rg_space2 = ift.makeDomain(ift.RGSpace((80, 60), distances=1))
hp_space = ift.makeDomain(ift.HPSpace(64))
gl_space = ift.makeDomain(ift.GLSpace(128))
......@@ -13,7 +13,7 @@ def plot_test():
field_rg1_1 = ift.Field.from_global_data(rg_space1, np.random.randn(100))
field_rg1_2 = ift.Field.from_global_data(rg_space1, np.random.randn(100))
field_rg2 = ift.Field.from_global_data(
rg_space2, np.random.randn(80 ** 2).reshape((80, 80)))
rg_space2, np.random.randn(80*60).reshape((80, 60)))
field_hp = ift.Field.from_global_data(hp_space, np.random.randn(12*64**2))
field_gl = ift.Field.from_global_data(gl_space, np.random.randn(32640))
field_ps = ift.power_analyze(fft.times(field_rg2))
......
......@@ -45,11 +45,9 @@ def _mollweide_helper(xsize):
xsize = int(xsize)
ysize = xsize//2
res = np.full(shape=(ysize, xsize), fill_value=np.nan, dtype=np.float64)
xc = (xsize-1)*0.5
yc = (ysize-1)*0.5
xc, yc = (xsize-1)*0.5, (ysize-1)*0.5
u, v = np.meshgrid(np.arange(xsize), np.arange(ysize))
u = 2*(u-xc)/(xc/1.02)
v = (v-yc)/(yc/1.02)
u, v = 2*(u-xc)/(xc/1.02), (v-yc)/(yc/1.02)
mask = np.where((u*u*0.25 + v*v) <= 1.)
t1 = v[mask]
......@@ -62,11 +60,8 @@ def _mollweide_helper(xsize):
def _find_closest(A, target):
# A must be sorted
idx = A.searchsorted(target)
idx = np.clip(idx, 1, len(A)-1)
left = A[idx-1]
right = A[idx]
idx -= target - left < right - target
idx = np.clip(A.searchsorted(target), 1, len(A)-1)
idx -= target - A[idx-1] < A[idx] - target
return idx
......@@ -80,10 +75,7 @@ def _makeplot(name):
plt.close()
return
extension = os.path.splitext(name)[1]
if extension == ".pdf":
plt.savefig(name)
plt.close()
elif extension == ".png":
if extension in (".pdf", ".png"):
plt.savefig(name)
plt.close()
else:
......@@ -186,22 +178,16 @@ def _plot(f, ax, **kwargs):
raise ValueError("PowerSpace or 1D RGSpace required")
label = kwargs.pop("label", None)
if label is None:
label = [None] * len(f)
if not isinstance(label, list):
label = [label]
label = [label] * len(f)
linewidth = kwargs.pop("linewidth", None)
if linewidth is None:
linewidth = [1.] * len(f)
linewidth = kwargs.pop("linewidth", 1.)
if not isinstance(linewidth, list):
linewidth = [linewidth]
linewidth = [linewidth] * len(f)
alpha = kwargs.pop("alpha", None)
if alpha is None:
alpha = [None] * len(f)
if not isinstance(alpha, list):
alpha = [alpha]
alpha = [alpha] * len(f)
foo = kwargs.pop("norm", None)
norm = {} if foo is None else {'norm': foo}
......@@ -225,14 +211,12 @@ def _plot(f, ax, **kwargs):
plt.legend()
return
elif len(dom.shape) == 2:
f = f[0]
nx, ny = dom.shape
dx, dy = dom.distances
im = ax.imshow(fld.to_global_data().T,
extent=[0, nx*dx, 0, ny*dy],
vmin=kwargs.get("zmin"),
vmax=kwargs.get("zmax"), cmap=cmap, origin="lower",
**norm)
im = ax.imshow(
f[0].to_global_data().T, extent=[0, nx*dx, 0, ny*dy],
vmin=kwargs.get("zmin"), vmax=kwargs.get("zmax"),
cmap=cmap, origin="lower", **norm)
# from mpl_toolkits.axes_grid1 import make_axes_locatable
# divider = make_axes_locatable(ax)
# cax = divider.append_axes("right", size="5%", pad=0.05)
......@@ -252,34 +236,23 @@ def _plot(f, ax, **kwargs):
if label != ([None]*len(f)):
plt.legend()
return
elif isinstance(dom, HPSpace):
f = f[0]
elif isinstance(dom, (HPSpace, GLSpace)):
import pyHealpix
xsize = 800
res, mask, theta, phi = _mollweide_helper(xsize)
ptg = np.empty((phi.size, 2), dtype=np.float64)
ptg[:, 0] = theta
ptg[:, 1] = phi
base = pyHealpix.Healpix_Base(int(np.sqrt(f.size//12)), "RING")
res[mask] = f.to_global_data()[base.ang2pix(ptg)]
plt.axis('off')
plt.imshow(res, vmin=kwargs.get("zmin"), vmax=kwargs.get("zmax"),
cmap=cmap, origin="lower")
plt.colorbar(orientation="horizontal")
return
elif isinstance(dom, GLSpace):
f = f[0]
import pyHealpix
xsize = 800
res, mask, theta, phi = _mollweide_helper(xsize)
ra = np.linspace(0, 2*np.pi, dom.nlon+1)
dec = pyHealpix.GL_thetas(dom.nlat)
ilat = _find_closest(dec, theta)
ilon = _find_closest(ra, phi)
ilon = np.where(ilon == dom.nlon, 0, ilon)
res[mask] = f.to_global_data()[ilat*dom.nlon + ilon]
if isinstance(dom, HPSpace):
ptg = np.empty((phi.size, 2), dtype=np.float64)
ptg[:, 0] = theta
ptg[:, 1] = phi
base = pyHealpix.Healpix_Base(int(np.sqrt(f[0].size//12)), "RING")
res[mask] = f[0].to_global_data()[base.ang2pix(ptg)]
else:
ra = np.linspace(0, 2*np.pi, dom.nlon+1)
dec = pyHealpix.GL_thetas(dom.nlat)
ilat = _find_closest(dec, theta)
ilon = _find_closest(ra, phi)
ilon = np.where(ilon == dom.nlon, 0, ilon)
res[mask] = f[0].to_global_data()[ilat*dom.nlon + ilon]
plt.axis('off')
plt.imshow(res, vmin=kwargs.get("zmin"), vmax=kwargs.get("zmax"),
cmap=cmap, origin="lower")
......
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