def _load(self):
self._pieslices = tuple(self.filter_nodes(PieSlice))
total = sum(S['prop'] for S in self._pieslices)
# percentage | arc length | color
self._slices = [(S['prop'] / total, S['prop'] / total * 2 * pi,
S['color']) for S in self._pieslices]
self._slices_t = list(accumulate(s[1] for s in self._slices))
self._keys = Plot_keys(self._pieslices)
self._planes = set(self._pieslices)
def _load(self):
self._pieslices = tuple(self.filter_nodes(PieSlice))
total = sum(S['prop'] for S in self._pieslices)
# percentage | arc length | color
self._slices = [(S['prop']/total, S['prop']/total*2*pi, S['color']) for S in self._pieslices]
self._slices_t = list(accumulate(s[1] for s in self._slices))
self._keys = Plot_keys(self._pieslices)
self._planes = set(self._pieslices)
class PieChart(Blockelement):
name = _namespace
DNA = Blockelement.DNA + [('radius', 'float', 89),
('center', 'float', 0.5), ('rotate', 'float', 0),
('key_shift', 'float', 4),
('key_bottom', 'float', 4),
('cl_key', 'blocktc', 'key')]
def _load(self):
self._pieslices = tuple(self.filter_nodes(PieSlice))
total = sum(S['prop'] for S in self._pieslices)
# percentage | arc length | color
self._slices = [(S['prop'] / total, S['prop'] / total * 2 * pi,
S['color']) for S in self._pieslices]
self._slices_t = list(accumulate(s[1] for s in self._slices))
self._keys = Plot_keys(self._pieslices)
self._planes = set(self._pieslices)
def _paint_pie(self, cr, render):
r = self['radius']
t = self['rotate']
for percent, arc, color in self._slices:
cr.move_to(0, 0)
cr.arc(0, 0, r, t, t + arc)
cr.close_path()
cr.set_source_rgba(*color)
cr.fill()
t += arc
def _paint_pie_annot(self, cr, O):
if O in self._planes:
i = self._pieslices.index(O)
t = self._slices_t[i - 1] + self['rotate']
percent, arc, color = self._slices[i]
cr.set_source_rgba(*color)
cr.set_line_width(2)
cr.arc(0, 0, self['radius'] + 13, t, t + arc)
cr.stroke()
cr.fill()
def which(self, x, u, r):
if (r > 1 or r < 0) and x <= self._extreme:
dx = x - self._px
du = u - self._pu
if dx**2 + du**2 <= (self['radius'] + 13)**2:
t = atan2(du, dx) - self['rotate']
if t < 0:
t += 2 * pi
i = bisect(self._slices_t, t)
cell = self._pieslices[i]
else:
i, cell = self._keys.which(u)
return ((i, cell), ) + cell.which(x, u, r - 1)
else:
return ()
def _layout_block(self, frames, BSTYLE, overlay):
self._frames = frames
r = self['radius']
u, x1, x2, y, c, pn = frames.fit(2 * r)
self._px = x1 + (x2 - x1) * self['center']
self._pu = u - r
center = self._px, y - r
self._extreme = x2
planes = []
paint_functions = [(pn, (self._paint_pie, *center, 0))]
# key
u = self._keys.layout_keys(frames, overlay + self['cl_key'], planes,
paint_functions, u - 2 * r, u,
self['key_shift'], self['key_bottom'])
return u, [], [], planes, paint_functions, [
(pn, (self._paint_pie_annot, ) + center)
], lambda O: O in self._planes, self._keys.get_color()
class PieChart(Blockelement):
name = _namespace
DNA = Blockelement.DNA + [('radius', 'float', 89), ('center', 'float', 0.5), ('rotate', 'float', 0), ('key_shift', 'float', 4), ('key_bottom', 'float', 4), ('cl_key', 'blocktc', 'key')]
def _load(self):
self._pieslices = tuple(self.filter_nodes(PieSlice))
total = sum(S['prop'] for S in self._pieslices)
# percentage | arc length | color
self._slices = [(S['prop']/total, S['prop']/total*2*pi, S['color']) for S in self._pieslices]
self._slices_t = list(accumulate(s[1] for s in self._slices))
self._keys = Plot_keys(self._pieslices)
self._planes = set(self._pieslices)
def _paint_pie(self, cr, render):
r = self['radius']
t = self['rotate']
for percent, arc, color in self._slices:
cr.move_to(0, 0)
cr.arc(0, 0, r, t, t + arc)
cr.close_path()
cr.set_source_rgba( * color )
cr.fill()
t += arc
def _paint_pie_annot(self, cr, O):
if O in self._planes:
i = self._pieslices.index(O)
t = self._slices_t[i - 1] + self['rotate']
percent, arc, color = self._slices[i]
cr.set_source_rgba( * color )
cr.set_line_width(2)
cr.arc(0, 0, self['radius'] + 13, t, t + arc)
cr.stroke()
cr.fill()
def which(self, x, u, r):
if (r > 1 or r < 0) and x <= self._extreme:
dx = x - self._px
du = u - self._pu
if dx**2 + du**2 <= (self['radius'] + 13)**2:
t = atan2(du, dx) - self['rotate']
if t < 0:
t += 2*pi
i = bisect(self._slices_t, t)
cell = self._pieslices[i]
else:
i, cell = self._keys.which(u)
return ((i, cell),) + cell.which(x, u, r - 1)
else:
return ()
def _layout_block(self, frames, BSTYLE, overlay):
self._frames = frames
r = self['radius']
u, x1, x2, y, c, pn = frames.fit(2*r)
self._px = x1 + (x2 - x1)*self['center']
self._pu = u - r
center = self._px, y - r
self._extreme = x2
planes = []
paint_functions = [(pn, (self._paint_pie, * center, 0))]
# key
u = self._keys.layout_keys(frames, overlay + self['cl_key'], planes, paint_functions, u - 2*r, u, self['key_shift'], self['key_bottom'])
return u, [], [], planes, paint_functions, [(pn, (self._paint_pie_annot,) + center)], lambda O: O in self._planes, self._keys.get_color()