def updatePoints(self, func = None):
"""
recalculates points according to the function func
@param func: a function R -> R^3
"""
if func is not None:
self.function = fix_function(func,self.intervals[0][0])
self.domainPoints = []
for it, line in zip(self.intervals, self.lines):
domain, points = refine(self.function, it, self.max_angle, self.max_distance)
self.domainPoints += domain
line.setPoints(points)
for f in self.fields.values():
f.updatePoints(self.domainPoints, self.points)
def __init__(self, func, interval, color=(1, 1, 1), width=1, nvertices= -1, max_distance = None, max_angle = None):
super(Curve3D, self).__init__()
self.__derivative = None
self.fields = {}
self.lines = []
self.intervals = normalize_interval(interval)
self.domainPoints = []
self.max_distance = max_distance
self.max_angle = max_angle
## self.interval[0][0] is the start of the first interval
## should be a valid value, anyway
self.function = fix_function(func, self.intervals[0][0])
for it in self.intervals:
domain, points = refine(self.function, it, max_angle, max_distance)
self.domainPoints += domain
self.lines.append(Line(points, color, width, nvertices))
self.separator.addChild(self.lines[-1].root) ## <--- container feature!!
self.lengths = map(len, self.lines)
self.animation = Animation(self.setNumVertices, (4000, 1, len(self)-1))
