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Merge branch 'avoid-nan-cast-warning' into 'development' 

Silence Runtime warning when casting (masking) NaN values to color

See merge request damask/DAMASK!847
This commit is contained in:
Philip Eisenlohr 2023-11-20 14:51:31 +00:00
parent 9a12bf5ee7 c0a97a93fe
commit 873ca78b8c
1 changed files with 5 additions and 3 deletions
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6
python/damask/_colormap.py
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@ -296,7 +296,7 @@ class Colormap(mpl.colors.ListedColormap):
RGBA image of shaded data.
"""
mask = np.logical_not(np.isnan(field) if gap is None else \
mask = np.logical_not(np.isnan(field) if gap is None else
np.logical_or(np.isnan(field), field == gap)) # mask NaN (and gap if present)
l,r = (field[mask].min(),field[mask].max()) if bounds is None else \
@ -305,9 +305,11 @@ class Colormap(mpl.colors.ListedColormap):
if abs(delta := r-l) * 1e8 <= (avg := 0.5*abs(r+l)): # delta is similar to numerical noise
l,r = (l-0.5*avg*np.sign(delta),r+0.5*avg*np.sign(delta)) # extend range to have actual data centered within
field_ = np.nan_to_num(field, nan=(l+r)/2, posinf=r, neginf=l)
return Image.fromarray(
(np.dstack((
self.colors[(np.round(np.clip((field-l)/delta,0.0,1.0)*(self.N-1))).astype(np.uint16),:3],
self.colors[np.round(np.clip((field_-l)/(r-l),0.0,1.0)*(self.N-1)).astype(np.uint16),:3],
mask.astype(float)
)
)*255