def interpolate_ot(self, f):
v = self.result
if self.adjust_thresholds:
self.record_threshold_ranks(v)
changed_f = get_weights(self.rate, f)
f1, f2, sf1, sf2, v1, v2, vol1, vol2 = self.coefficients(changed_f)
if v.data is None or v1.data is None or v2.data is None:
return False
if self.semi:
linear_combination(sf1, vol1, sf2, vol2, v, self.subregion,
self.step)
else:
ot_combination(sf1, v1, sf2, v2, v, self.subregion, self.step,
self.niter, self.reg)
self.f = f
if self.adjust_thresholds:
self.set_threshold_ranks(v)
if self.interpolate_colors:
interpolate_colors(f1, v1, f2, v2, v)
return True
def interpolate_colors(f1, v1, f2, v2, v):
nc = len(v.surfaces)
if len(v1.surfaces) == nc and len(v2.surfaces) == nc:
from chimerax.geometry import linear_combination
for s, s1, s2 in zip(v.surfaces, v1.surfaces, v2.surfaces):
s.rgba = linear_combination(f1, s1.rgba, f2, s2.rgba)
nc = len(v.image_colors)
if len(v1.image_colors) == nc and len(v2.image_colors) == nc:
from chimerax.geometry import linear_combination
scolors = [linear_combination(f1, v1.image_colors[c], f2, v2.image_colors[c])
for c in range(nc)]
v.set_parameters(image_colors = scolors)
def linear_combination(f1, v1, f2, v2, v, subregion, step):
m = v.full_matrix()
m1 = v1
m2 = v2
if (m.flags.contiguous and m1.flags.contiguous and m2.flags.contiguous
and m1.dtype == m.dtype and m2.dtype == m.dtype):
# Optimize calculation of linear combination of matrices.
# C++ routine is 7x faster (.1 vs .7 sec) than numpy on 256^3 matrix.
from chimerax.map import linear_combination
linear_combination(f1, m1, f2, m2, m)
else:
m[:, :, :] = f1 * m1[:, :, :] + f2 * m2[:, :, :]
v.data.values_changed()
def interpolate(self, f):
v = self.result
if self.adjust_thresholds:
self.record_threshold_ranks(v)
f1, f2, sf1, sf2, v1, v2 = self.coefficients(f)
if v.data is None or v1.data is None or v2.data is None:
return False
linear_combination(sf1, v1, sf2, v2, v, self.subregion, self.step)
self.f = f
if self.adjust_thresholds:
self.set_threshold_ranks(v)
if self.interpolate_colors:
interpolate_colors(f1, v1, f2, v2, v)
return True