def draw(self, ar, can):
center = self.center
if not center:
center = (ar.loc[0] + ar.size[0]/2.0,
ar.loc[1] + ar.size[1]/2.0)
base_radius = self.base_radius # the maximum radius of a wedge
if not base_radius:
base_radius = min(ar.size[0]/2.0, ar.size[1]/2.0) #* 0.8
sector_decrement = 1./(len(self.data)*2) * self.sector_width # each following sector diagram will have its sector width decremented by half this amount (in degrees)
i = 0
for dataset in self.data:
cur_angle = self.start_angle
if self.sector_centred:
cur_angle -= self.sector_width/2.
fill = self.fill_styles[i]
x_center = center[0]
y_center = center[1]
if not i: # draw directions around sector diagram once off
dir_offset = base_radius + (self.dir_offset or base_radius * 0.04)
directions = ['N', 'E', 'S', 'W']
angle = self.start_angle
can.ellipsis(line_style.T(color=color.black, width=0.3, dash=line_style.dash1), None,
x_center, y_center, base_radius, 1,
0, 360) #
for d in directions:
x_label, y_label = pychart_util.rotate(dir_offset, 0, angle) # coords for bottom left corner of box
tw = font.text_width(d)
half = 1/3. # normal arithmetic does not seem to apply to these text_box objects...
if (angle == 0): # east
y_label -= font.text_height(d)[0]*half # move down half
elif (angle == -180): # west
y_label -= font.text_height(d)[0]*half # move down half
x_label -= font.text_width(d) # move left full
elif (angle == 90): # north
x_label -= font.text_height(d)[0]*half # move left half
elif (angle == -90): # south
y_label -= font.text_height(d)[0]*.8 # move down (couldn't figure out how to set this dynamically so I fudged...)
x_label -= font.text_height(d)[0]*half # move left half
canvas.show(x_label + x_center, y_label + y_center, d)
angle -= 360/len(directions)
for val in dataset[self.data_col]: # now draw the sectors
radius = base_radius*val # scale the radius
start = cur_angle-self.sector_width+i*sector_decrement
stop = cur_angle-i*sector_decrement # these may seem confusing, but remember that we need to go counterclockwise
can.ellipsis(self.line_style, fill,
x_center, y_center, radius, 1, start, stop, self.shadow)
cur_angle = (cur_angle - self.sector_width) % 360 # we want to go in anticlockwise direction (North, West, South, etc. as in meteorology)
i = (i + 1) % len(self.fill_styles)
def draw(self, ar, can):
center = self.center
if not center:
center = (ar.loc[0] + ar.size[0]/2.0,
ar.loc[1] + ar.size[1]/2.0)
base_radius = self.base_radius # the maximum radius of a wedge
if not base_radius:
base_radius = min(ar.size[0]/2.0, ar.size[1]/2.0) #* 0.8
sector_decrement = 1./(len(self.data)*2) * self.sector_width # each following sector diagram will have its sector width decremented by half this amount (in degrees)
i = 0
for dataset in self.data:
cur_angle = self.start_angle
if self.sector_centred:
cur_angle -= self.sector_width/2.
fill = self.fill_styles[i]
x_center = center[0]
y_center = center[1]
if not i: # draw directions around sector diagram once off
dir_offset = base_radius + (self.dir_offset or base_radius * 0.04)
directions = ['N', 'E', 'S', 'W']
angle = self.start_angle
can.ellipsis(line_style.T(color=color.black, width=0.3, dash=line_style.dash1), None,
x_center, y_center, base_radius, 1,
0, 360) #
for d in directions:
x_label, y_label = pychart_util.rotate(dir_offset, 0, angle) # coords for bottom left corner of box
tw = font.text_width(d)
half = 1/3. # normal arithmetic does not seem to apply to these text_box objects...
if (angle == 0): # east
y_label -= font.text_height(d)[0]*half # move down half
elif (angle == -180): # west
y_label -= font.text_height(d)[0]*half # move down half
x_label -= font.text_width(d) # move left full
elif (angle == 90): # north
x_label -= font.text_height(d)[0]*half # move left half
elif (angle == -90): # south
y_label -= font.text_height(d)[0]*.8 # move down (couldn't figure out how to set this dynamically so I fudged...)
x_label -= font.text_height(d)[0]*half # move left half
canvas.show(x_label + x_center, y_label + y_center, d)
angle -= 360/len(directions)
for val in dataset[self.data_col]: # now draw the sectors
radius = base_radius*val # scale the radius
start = cur_angle-self.sector_width+i*sector_decrement
stop = cur_angle-i*sector_decrement # these may seem confusing, but remember that we need to go counterclockwise
can.ellipsis(self.line_style, fill,
x_center, y_center, radius, 1, start, stop, self.shadow)
cur_angle = (cur_angle - self.sector_width) % 360 # we want to go in anticlockwise direction (North, West, South, etc. as in meteorology)
i = (i + 1) % len(self.fill_styles)
def draw(self, ar):
# Draw the line
canvas.clip(ar.loc[0], ar.loc[1],
ar.loc[0] + ar.size[0],
ar.loc[1] + ar.size[1])
if self.line_style:
points = []
for pair in self.data:
points.append((ar.x_pos(pair[self.xcol]), ar.y_pos(pair[self.ycol])))
canvas.lines(self.line_style, points)
canvas.endclip()
# Draw tick marks and error bars
canvas.clip(ar.loc[0] - 10, ar.loc[1] - 10,
ar.loc[0] + ar.size[0] + 10,
ar.loc[1] + ar.size[1] + 10)
for pair in self.data:
x = pair[self.xcol]
y = pair[self.ycol]
x_pos = ar.x_pos(x)
y_pos = ar.y_pos(y)
if self.error_bar:
plus = pair[self.y_error_plus_col or self.y_error_minus_col]
minus = pair[self.y_error_minus_col or self.y_error_plus_col]
if self.y_qerror_minus_col or self.y_qerror_plus_col:
q_plus = pair[self.y_qerror_minus_col or self.y_qerror_plus_col]
q_minus = pair[self.y_qerror_plus_col or self.y_qerror_minus_col]
self.error_bar.draw((x_pos, y_pos),
ar.y_pos(y - minus),
ar.y_pos(y + plus),
ar.y_pos(y - q_minus),
ar.y_pos(y + q_plus))
else:
self.error_bar.draw((x_pos, y_pos),
ar.y_pos(y - minus),
ar.y_pos(y + plus))
if self.tick_mark:
self.tick_mark.draw(x_pos, y_pos)
if self.data_label_format:
canvas.show(x_pos + self.data_label_offset[0],
y_pos + self.data_label_offset[1],
"/hC" + pychart_util.apply_format(self.data_label_format, (x, y), 1))
canvas.endclip()
def draw(self, ar):
self.type_check()
self.tic_interval = self.tic_interval or ar.y_grid_interval
x_base = ar.loc[0] + self.offset
canvas.line(self.line_style, x_base, ar.loc[1],
x_base, ar.loc[1]+ar.size[1])
xmin = x_base + ar.size[0] # somebigvalue
tic_dic = {}
for i in ar.y_tic_points(self.tic_interval):
y_tic = ar.y_pos(i)
tic_dic[i] = 1
canvas.line(self.line_style, x_base, y_tic,
x_base - self.tic_len, y_tic)
tic_label = pychart_util.apply_format(self.format, (i,), 0)
x = x_base - self.tic_len + self.tic_label_offset[0]
if self.tic_len > 0:
tic_label = "/hR" + tic_label
tic_height, base_height = font.text_height(tic_label)
canvas.show(x, y_tic - tic_height/2.0 + self.tic_label_offset[1],
tic_label)
xmin = min(xmin, x - font.text_width(tic_label))
if self.minor_tic_interval:
for i in ar.y_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
y_tic = ar.y_pos(i)
canvas.line(self.line_style, x_base, y_tic,
x_base - self.minor_tic_len, y_tic)
if self.label != None:
xlabel = xmin - theme.default_font_size/2.0
ylabel = ar.loc[1] + ar.size[1] / 2
if self.label_offset[0] != None:
xlabel = xlabel + self.label_offset[0]
if self.label_offset[1] != None:
ylabel = ylabel + self.label_offset[1]
canvas.show(xlabel, ylabel, "/a90/hC" + self.label)
def draw(self, ar):
self.type_check()
self.tic_interval = self.tic_interval or ar.y_grid_interval
x_base = ar.loc[0] + self.offset
canvas.line(self.line_style, x_base, ar.loc[1], x_base,
ar.loc[1] + ar.size[1])
xmin = x_base + ar.size[0] # somebigvalue
tic_dic = {}
for i in ar.y_tic_points(self.tic_interval):
y_tic = ar.y_pos(i)
tic_dic[i] = 1
canvas.line(self.line_style, x_base, y_tic, x_base - self.tic_len,
y_tic)
tic_label = pychart_util.apply_format(self.format, (i, ), 0)
x = x_base - self.tic_len + self.tic_label_offset[0]
if self.tic_len > 0:
tic_label = "/hR" + tic_label
tic_height, base_height = font.text_height(tic_label)
canvas.show(x, y_tic - tic_height / 2.0 + self.tic_label_offset[1],
tic_label)
xmin = min(xmin, x - font.text_width(tic_label))
if self.minor_tic_interval:
for i in ar.y_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
y_tic = ar.y_pos(i)
canvas.line(self.line_style, x_base, y_tic,
x_base - self.minor_tic_len, y_tic)
if self.label != None:
xlabel = xmin - theme.default_font_size / 2.0
ylabel = ar.loc[1] + ar.size[1] / 2
if self.label_offset[0] != None:
xlabel = xlabel + self.label_offset[0]
if self.label_offset[1] != None:
ylabel = ylabel + self.label_offset[1]
canvas.show(xlabel, ylabel, "/a90/hC" + self.label)
def draw(self, ar, x_tick, x_label, y):
"""Draw a legend entry. X_TICK and X_LABEL are the X location \
(in points) of where the sample and label are drawn."""
nr_lines = len(string.split(self.label, "\n"))
text_height = font.text_height(self.label)[0]
line_height = text_height / float(nr_lines)
y_center = y + text_height - line_height / 1.5
if self.fill_style != None:
canvas.rectangle(self.line_style, self.fill_style, x_tick,
y_center - self.rect_size / 2.0,
x_tick + self.rect_size,
y_center + self.rect_size / 2.0)
elif self.line_style != None:
canvas.line(self.line_style, x_tick, y_center,
x_tick + self.line_len, y_center)
if self.tick_mark != None:
self.tick_mark.draw(x_tick + self.line_len / 2.0, y_center)
elif self.tick_mark != None:
self.tick_mark.draw(x_tick, y_center)
canvas.show(x_label, y, self.label)
def draw(self, ar, x_tick, x_label, y):
"""Draw a legend entry. X_TICK and X_LABEL are the X location \
(in points) of where the sample and label are drawn."""
nr_lines = len(string.split(self.label, "\n"))
text_height = font.text_height(self.label)[0]
line_height = text_height / float(nr_lines)
y_center = y + text_height - line_height/1.5
if self.fill_style != None:
canvas.rectangle(self.line_style, self.fill_style,
x_tick, y_center - self.rect_size/2.0,
x_tick + self.rect_size,
y_center + self.rect_size/2.0)
elif self.line_style != None:
canvas.line(self.line_style, x_tick, y_center,
x_tick + self.line_len, y_center)
if self.tick_mark != None:
self.tick_mark.draw(x_tick + self.line_len/2.0, y_center)
elif self.tick_mark != None:
self.tick_mark.draw(x_tick, y_center)
canvas.show(x_label, y, self.label)
def draw_vertical(self, ar):
for pair in self.data:
xval = pair[self.bcol]
yval = pair[self.hcol]
ybot = 0
if self.stack_on:
ybot = self.stack_on.get_value(xval)
yval = yval + ybot
totalWidth = (self.width+self.cluster_sep) * self.cluster[1] - self.cluster_sep
firstX = ar.x_pos(xval) - totalWidth/2.0
thisX = firstX + (self.width+self.cluster_sep) * self.cluster[0] - self.cluster_sep
canvas.rectangle(self.line_style, self.fill_style,
thisX, ar.y_pos(ybot), thisX+self.width,
ar.y_pos(yval))
if self.error_bar:
plus = pair[self.error_minus_col or self.error_plus_col]
minus = pair[self.error_plus_col or self.error_minus_col]
qplus = 0
qminus = 0
if self.qerror_minus_col or self.qerror_plus_col:
qplus = pair[self.qerror_minus_col or self.qerror_plus_col]
qminus = pair[self.qerror_plus_col or self.qerror_minus_col]
self.error_bar.draw((thisX+self.width/2.0, ar.y_pos(yval)),
ar.y_pos(yval - qminus),
ar.y_pos(yval + qplus),
ar.y_pos(yval - minus),
ar.y_pos(yval + plus))
if self.data_label_format:
canvas.show(thisX + self.width/2.0 + self.data_label_offset[0],
ar.y_pos(yval) + self.data_label_offset[1],
"/hC" + pychart_util.apply_format(self.data_label_format, (pair[self.bcol], pair[self.hcol]), 1))
def draw(self):
x = self.loc[0]
y = self.loc[1]
text_width = font.text_width(self.text)
text_height = font.text_height(self.text)[0]
(halign, valign, angle) = font.get_align(self.text)
if self.line_style or self.fill_style:
width = text_width + self.left_fudge + self.right_fudge
height = text_height + self.bottom_fudge + self.top_fudge
canvas.round_rectangle(self.line_style, self.fill_style,
x - self.left_fudge, y - self.bottom_fudge,
x - self.left_fudge + width,
y - self.bottom_fudge + height, self.radius,
self.shadow)
if halign == 'L':
canvas.show(x, y, self.text)
elif halign == 'C':
canvas.show(x + text_width / 2.0, y, self.text)
elif halign == 'R':
canvas.show(x + text_width, y, self.text)
else:
raise Exception, "Unsupported alignment (" + halign + ")"
# draw arrows
for t in self.arrows:
(tipLoc, tail, arrow) = t
if tail:
(x, y, width, height) = self.get_dimension()
origin = [x, y]
for ch in tail:
if ch == 'l':
origin[0] = x
elif ch == 'c':
origin[0] = x + width / 2.0
elif ch == 'r':
origin[0] = x + width
elif ch == 'b':
origin[1] = y
elif ch == 'm':
origin[1] = y + height / 2.0
elif ch == 't':
origin[1] = y + height
else:
raise ValueError, tail + ": unknown tail location spec."
else:
origin = self.choose_end_point(tipLoc[0], tipLoc[1])
arrow.draw((origin, tipLoc))
def draw(self):
x = self.loc[0]
y = self.loc[1]
text_width = font.text_width(self.text)
text_height = font.text_height(self.text)[0]
(halign, valign, angle) = font.get_align(self.text)
if self.line_style or self.fill_style:
width = text_width+self.left_fudge+self.right_fudge
height = text_height+self.bottom_fudge+self.top_fudge
canvas.round_rectangle(self.line_style, self.fill_style,
x-self.left_fudge, y-self.bottom_fudge,
x-self.left_fudge+width, y-self.bottom_fudge+height,
self.radius, self.shadow)
if halign == 'L':
canvas.show(x, y, self.text)
elif halign == 'C':
canvas.show(x+text_width/2.0, y, self.text)
elif halign == 'R':
canvas.show(x+text_width, y, self.text)
else:
raise Exception, "Unsupported alignment (" + halign + ")"
# draw arrows
for t in self.arrows:
(tipLoc, tail, arrow) = t
if tail:
(x, y, width, height) = self.get_dimension()
origin = [x, y]
for ch in tail:
if ch == 'l':
origin[0] = x
elif ch == 'c':
origin[0] = x+width/2.0
elif ch == 'r':
origin[0] = x+width
elif ch == 'b':
origin[1] = y
elif ch == 'm':
origin[1] = y+height/2.0
elif ch == 't':
origin[1] = y+height
else:
raise ValueError, tail + ": unknown tail location spec."
else:
origin = self.choose_end_point(tipLoc[0], tipLoc[1])
arrow.draw((origin, tipLoc))
def main(): app = QApplication(sys.argv) canvas = Canvas() canvas.show() sys.exit(app.exec_())
def draw(self, ar):
self.type_check()
self.tic_interval = self.tic_interval or ar.x_grid_interval
y_base = ar.loc[1] + self.offset
canvas.line(self.line_style, ar.loc[0], y_base,
ar.loc[0]+ ar.size[0], y_base)
tic_dic = {}
max_tic_height = 0
for i in ar.x_tic_points(self.tic_interval):
tic_dic[i] = 1
ticx = ar.x_pos(i)
str = "/hC" + pychart_util.apply_format(self.format, (i, ), 0)
(total_height, base_height) = font.text_height(str)
max_tic_height = max(max_tic_height, total_height)
canvas.line(self.line_style, ticx, y_base, ticx, y_base-self.tic_len)
canvas.show(ticx+self.tic_label_offset[0],
y_base-self.tic_len-base_height+self.tic_label_offset[1],
str)
if self.minor_tic_interval:
for i in ar.x_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
ticx = ar.x_pos(i)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base-self.minor_tic_len)
if self.label != None:
str = "/hC/vM" + self.label
(label_height, base_height) = font.text_height(str)
xlabel = ar.loc[0] + ar.size[0]/2.0
ylabel = y_base - self.tic_len - max_tic_height - 10
if self.label_offset[0] != None:
xlabel = xlabel + self.label_offset[0]
if self.label_offset[1] != None:
ylabel = ylabel + self.label_offset[1]
canvas.show(xlabel, ylabel, str)
tic_dic = {}
max_tic_height = 0
for i in ar.x_tic_points(self.tic_interval):
tic_dic[i] = 1
ticx = ar.x_pos(i)
str = "/hC" + pychart_util.apply_format(self.format, (i,), 0)
(total_height, base_height) = font.text_height(str)
max_tic_height = max(max_tic_height, total_height)
canvas.line(self.line_style, ticx, y_base, ticx, y_base-self.tic_len)
canvas.show(ticx+self.tic_label_offset[0],
y_base-self.tic_len-base_height+self.tic_label_offset[1],
str)
if self.minor_tic_interval:
for i in ar.x_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
ticx = ar.x_pos(i)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base-self.minor_tic_len)
if self.label != None:
str = "/hC/vM" + self.label
(label_height, base_height) = font.text_height(str)
if self.label_offset[0] != None:
xlabel = ar.loc[0] + self.label_offset[0]
else:
xlabel = ar.loc[0] + ar.size[0]/2.0
if self.label_offset[1] != None:
ylabel = y_base + self.label_offset[1]
else:
ylabel = y_base - self.tic_len - max_tic_height - 10
canvas.show(xlabel, ylabel, str)
def draw(self, ar):
self.type_check()
self.tic_interval = self.tic_interval or ar.x_grid_interval
y_base = ar.loc[1] + self.offset
canvas.line(self.line_style, ar.loc[0], y_base, ar.loc[0] + ar.size[0],
y_base)
tic_dic = {}
max_tic_height = 0
for i in ar.x_tic_points(self.tic_interval):
tic_dic[i] = 1
ticx = ar.x_pos(i)
str = "/hC" + pychart_util.apply_format(self.format, (i, ), 0)
(total_height, base_height) = font.text_height(str)
max_tic_height = max(max_tic_height, total_height)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base - self.tic_len)
canvas.show(
ticx + self.tic_label_offset[0],
y_base - self.tic_len - base_height + self.tic_label_offset[1],
str)
if self.minor_tic_interval:
for i in ar.x_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
ticx = ar.x_pos(i)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base - self.minor_tic_len)
if self.label != None:
str = "/hC/vM" + self.label
(label_height, base_height) = font.text_height(str)
xlabel = ar.loc[0] + ar.size[0] / 2.0
ylabel = y_base - self.tic_len - max_tic_height - 10
if self.label_offset[0] != None:
xlabel = xlabel + self.label_offset[0]
if self.label_offset[1] != None:
ylabel = ylabel + self.label_offset[1]
canvas.show(xlabel, ylabel, str)
tic_dic = {}
max_tic_height = 0
for i in ar.x_tic_points(self.tic_interval):
tic_dic[i] = 1
ticx = ar.x_pos(i)
str = "/hC" + pychart_util.apply_format(self.format, (i, ), 0)
(total_height, base_height) = font.text_height(str)
max_tic_height = max(max_tic_height, total_height)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base - self.tic_len)
canvas.show(
ticx + self.tic_label_offset[0],
y_base - self.tic_len - base_height + self.tic_label_offset[1],
str)
if self.minor_tic_interval:
for i in ar.x_tic_points(self.minor_tic_interval):
if tic_dic.has_key(i):
# a major tic was drawn already.
pass
else:
ticx = ar.x_pos(i)
canvas.line(self.line_style, ticx, y_base, ticx,
y_base - self.minor_tic_len)
if self.label != None:
str = "/hC/vM" + self.label
(label_height, base_height) = font.text_height(str)
if self.label_offset[0] != None:
xlabel = ar.loc[0] + self.label_offset[0]
else:
xlabel = ar.loc[0] + ar.size[0] / 2.0
if self.label_offset[1] != None:
ylabel = y_base + self.label_offset[1]
else:
ylabel = y_base - self.tic_len - max_tic_height - 10
canvas.show(xlabel, ylabel, str)
