def draw(self, ar):
center = self.center
if not center:
center = (ar.loc[0] + ar.size[0] / 2.0,
ar.loc[1] + ar.size[1] / 2.0)
radius = self.radius
if not radius:
radius = min(ar.size[0] / 2.0, ar.size[1] / 2.0) * 0.5
label_offset = radius + (self.label_offset or radius * 0.1)
total = self._total()
i = 0
cur_angle = self.start_angle
for val in self.data:
fill = self.fill_styles[i]
degree = 360 * float(val[self.data_col]) / float(total)
off = (0, 0)
if len(self.arc_offsets) > i:
off = pychart_util.rotate(self.arc_offsets[i], 0,
cur_angle - degree / 2.0)
x_center = center[0] + off[0]
y_center = center[1] + off[1]
canvas.ellipsis(self.line_style, fill, x_center, y_center, radius,
1, cur_angle - degree, cur_angle, self.shadow)
label = val[self.label_col]
(x_label, y_label) = pychart_util.rotate(label_offset, 0,
cur_angle - degree / 2.0)
(x_arrowtip,
y_arrowtip) = pychart_util.rotate(radius, 0,
cur_angle - degree / 2.0)
# Labels on left side of pie need
# their text to avoid obscuring the pie
if x_label < 0:
x_label = x_label - font.text_width(label)
t = text_box.T(loc=(x_label + x_center, y_label + y_center),
text=label,
line_style=self.label_line_style,
fill_style=self.label_fill_style)
if self.arrow_style:
t.add_arrow((x_arrowtip + x_center, y_arrowtip + y_center),
None, self.arrow_style)
t.draw()
cur_angle = (cur_angle - degree) % 360
i = (i + 1) % len(self.fill_styles)
def draw(self, ar):
center = self.center
if not center:
center = (ar.loc[0] + ar.size[0]/2.0,
ar.loc[1] + ar.size[1]/2.0)
radius = self.radius
if not radius:
radius = min(ar.size[0]/2.0, ar.size[1]/2.0) * 0.5
label_offset = radius + (self.label_offset or radius * 0.1)
total = self._total()
i = 0
cur_angle = self.start_angle
for val in self.data:
fill = self.fill_styles[i]
degree = 360 * float(val[self.data_col]) / float(total)
off = (0, 0)
if len(self.arc_offsets) > i:
off = pychart_util.rotate(self.arc_offsets[i], 0, cur_angle - degree/2.0)
x_center = center[0]+ off[0]
y_center = center[1]+ off[1]
canvas.ellipsis(self.line_style, fill,
x_center, y_center, radius, 1,
cur_angle - degree, cur_angle,
self.shadow)
label = val[self.label_col]
(x_label, y_label) = pychart_util.rotate(label_offset, 0, cur_angle - degree/2.0)
(x_arrowtip, y_arrowtip) = pychart_util.rotate(radius, 0, cur_angle - degree/2.0)
# Labels on left side of pie need
# their text to avoid obscuring the pie
if x_label < 0:
x_label = x_label - font.text_width(label)
t = text_box.T(loc = (x_label + x_center, y_label + y_center),
text = label,
line_style = self.label_line_style,
fill_style = self.label_fill_style)
if self.arrow_style:
t.add_arrow((x_arrowtip + x_center, y_arrowtip + y_center),
None, self.arrow_style)
t.draw()
cur_angle = (cur_angle - degree) % 360
i = (i + 1) % len(self.fill_styles)
def draw(self, x, y):
self.predraw_check()
canvas.ellipsis(self.line_style, self.fill_style, x, y,
self.size / 2.0, 1)
def draw (self, x, y):
self.predraw_check()
canvas.ellipsis(self.line_style, self.fill_style, x, y,
self.size/2.0, 1)