def apply_to_curve(self, verts, u_set, set_len=None, inc_pos=None):
"""
Apply this color scheme to a
set of vertices over a single
independent variable u.
"""
bounds = create_bounds()
cverts = list()
if callable(set_len): set_len(len(u_set) * 2)
# calculate f() = r,g,b for each vert
# and find the min and max for r,g,b
for _u in xrange(len(u_set)):
if verts[_u] is None:
cverts.append(None)
else:
x, y, z = verts[_u]
u, v = u_set[_u], None
c = self(x, y, z, u, v)
if c is not None:
c = list(c)
update_bounds(bounds, c)
cverts.append(c)
if callable(inc_pos): inc_pos()
# scale and apply gradient
for _u in xrange(len(u_set)):
if cverts[_u] is not None:
for _c in xrange(3):
# scale from [f_min, f_max] to [0,1]
cverts[_u][_c] = rinterpolate(bounds[_c][0], bounds[_c][1],
cverts[_u][_c])
# apply gradient
cverts[_u] = self.gradient(*cverts[_u])
if callable(inc_pos): inc_pos()
return cverts
def apply_to_curve(self, verts, u_set, set_len=None, inc_pos=None):
"""
Apply this color scheme to a
set of vertices over a single
independent variable u.
"""
bounds = create_bounds()
cverts = list()
if callable(set_len): set_len(len(u_set)*2)
# calculate f() = r,g,b for each vert
# and find the min and max for r,g,b
for _u in xrange(len(u_set)):
if verts[_u] is None:
cverts.append(None)
else:
x,y,z = verts[_u]
u,v = u_set[_u], None
c = self(x,y,z,u,v)
if c is not None:
c = list(c)
update_bounds(bounds, c)
cverts.append(c)
if callable(inc_pos): inc_pos()
# scale and apply gradient
for _u in xrange(len(u_set)):
if cverts[_u] is not None:
for _c in xrange(3):
# scale from [f_min, f_max] to [0,1]
cverts[_u][_c] = rinterpolate(bounds[_c][0], bounds[_c][1], cverts[_u][_c])
# apply gradient
cverts[_u] = self.gradient(*cverts[_u])
if callable(inc_pos): inc_pos()
return cverts
def _interpolate_axis(self, axis, v):
i = self._find_interval(v)
v = rinterpolate(self.intervals[i - 1], self.intervals[i], v)
return interpolate(self.colors[i - 1][axis], self.colors[i][axis], v)
def _interpolate_axis(self, axis, v):
i = self._find_interval(v)
v = rinterpolate(self.intervals[i-1], self.intervals[i], v)
return interpolate(self.colors[i-1][axis], self.colors[i][axis], v)
