def on_render(self, cvs, system):
Box.on_render(self, cvs, system)
Atom.on_render(self, cvs, system)
n = self.n_top + self.n_bot
if n == 0:
return
y = system[self.y]
top = system[self.top] + PIP
bot = system[self.bot] + PIP
y_top = y + top
y_bot = y - bot
x_mid, y_mid = self.get_align("center")
x0, y0 = system[x_mid], system[y_mid]
x_top = [system[x] for x in self.x_top]
x_bot = [system[x] for x in self.x_bot]
x0 = (1. / n) * sum(x_top + x_bot)
conv = lambda x0, x1, t: (1. - t) * x0 + t * x1
y3 = y_top
for x3 in x_top:
x2, y2 = x3, conv(y3, y0, 0.3)
x1, y1 = conv(x0, x3, 0.7), conv(y3, y0, 0.7)
cvs.stroke(path.curve(x0, y0, x1, y1, x2, y2, x3, y3))
y3 = y_bot
for x3 in x_bot:
x2, y2 = x3, conv(y3, y0, 0.3)
x1, y1 = conv(x0, x3, 0.7), conv(y3, y0, 0.7)
cvs.stroke(path.curve(x0, y0, x1, y1, x2, y2, x3, y3))
cvs.fill(path.circle(x0, y0, 0.04))
def on_layout(self, cvs, system):
Box.on_layout(self, cvs, system)
Atom.on_layout(self, cvs, system)
x0 = self.x_top[0]
x1 = self.x_top[1]
system.add(x0 == self.llx + (1. / 4) * self.width, weight=self.weight)
system.add(x1 == self.llx + (3. / 4) * self.width, weight=self.weight)
system.add(2 * self.height >= x1 - x0)
def on_render(self, cvs, system):
Box.on_render(self, cvs, system)
Atom.on_render(self, cvs, system)
x = system[self.x]
y = system[self.y]
top = system[self.top] + PIP
bot = system[self.bot] + PIP
x0 = system[self.x_bot[0]]
cvs.stroke(path.line(x0, y - bot, x0, y + top))
def on_render(self, cvs, system):
Box.on_render(self, cvs, system)
Atom.on_render(self, cvs, system)
y = system[self.y]
top = system[self.top] + PIP
bot = system[self.bot]
y0 = y + top
x0 = system[self.x_top[0]]
x1 = system[self.x_top[1]]
x2 = 0.5 * (x0 + x1)
radius = 0.5 * (x1 - x0)
cvs.stroke(path.arc(x2, y0, radius, pi, 0.))
def on_render(self, cvs, system):
Box.on_render(self, cvs, system)
Atom.on_render(self, cvs, system)
y = system[self.y]
top = system[self.top]
bot = system[self.bot] + PIP
y0 = y - bot
x0 = system[self.x_bot[0]]
x1 = system[self.x_bot[1]]
x2 = 0.5 * (x0 + x1)
radius = 0.5 * (x1 - x0)
cvs.stroke(path.arc(x2, y0, radius, 0., pi))
def on_layout(self, cvs, system):
Box.on_layout(self, cvs, system)
Atom.on_layout(self, cvs, system)
width = self.width
llx = self.llx
n_top = self.n_top
x_top = self.x_top
if n_top > 0:
dx = width / (2 * n_top)
x = llx + dx
for i in range(n_top):
system.add(x_top[i] == x, weight=self.weight)
x += 2 * dx
n_bot = self.n_bot
x_bot = self.x_bot
if n_bot > 0:
dx = width / (2 * n_bot)
x = llx + dx
for i in range(n_bot):
system.add(x_bot[i] == x, weight=self.weight)
x += 2 * dx
def on_render(self, cvs, system):
Box.on_render(self, cvs, system)
Atom.on_render(self, cvs, system)
def on_layout(self, cvs, system):
Box.on_layout(self, cvs, system)
Atom.on_layout(self, cvs, system)
system.add(self.x_bot[0] == self.x_top[0])
x = 0.5 * (self.llx + self.urx)
system.add(self.x_bot[0] == x, 1.0)