def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx,
options.title,
options.titleFont,
options.titleFontSize,
options.encoding)[1]
lookup = dict([(slice.xval, slice) for slice in self.slices])
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (
options.padding.top + options.padding.bottom
)
centerx = self.chart.x + self.chart.w * 0.5
centery = self.chart.y + self.chart.h * 0.5
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
for tick in xticks:
slice = lookup.get(tick[0], None)
width, height = get_text_extents(cx, tick[1],
options.axis.tickFont,
options.axis.tickFontSize,
options.encoding)
angle = slice.getNormalisedAngle()
radius = self._get_min_radius(angle, centerx, centery,
width, height)
self.radius = min(self.radius, radius)
# Now that we now the radius we move the ticks as close as we can
# to the circle
for i, tick in enumerate(xticks):
slice = lookup.get(tick[0], None)
angle = slice.getNormalisedAngle()
self.ticks[i] = self._get_tick_position(self.radius, angle,
self.ticks[i],
centerx, centery)
def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx,
options.title,
options.titleFont,
options.titleFontSize,
options.encoding)[1]
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (options.padding.top
+ options.padding.bottom)
centerx = self.chart.x + self.chart.w * 0.5
centery = self.chart.y + self.chart.h * 0.5
angle = 0
angle_between =(2 * math.pi) / len(xticks)
self.angles = [angle]
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
for tick in xticks:
width, height = get_text_extents(cx, tick[1],
options.axis.tickFont,
options.axis.tickFontSize,
options.encoding)
radius = self._get_min_radius(angle, centerx, centery,
width, height)
self.radius = min(self.radius, radius)
angle += angle_between
self.angles.append(angle)
# Now that we now the radius we move the ticks as close as we can
# to the circle
for i, tick in enumerate(xticks):
self.ticks[i] = self._get_tick_position(self.radius, self.angles[i],
self.ticks[i],
centerx, centery)
def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx,
options.title,
options.titleFont,
options.titleFontSize,
options.encoding)[1]
lookup = dict([(slice.xval, slice) for slice in self.slices])
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (options.padding.top
+ options.padding.bottom)
centerx = self.chart.x + self.chart.w * 0.5
centery = self.chart.y + self.chart.h * 0.5
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
for tick in xticks:
slice = lookup.get(tick[0], None)
width, height = get_text_extents(cx, tick[1],
options.axis.tickFont,
options.axis.tickFontSize,
options.encoding)
angle = slice.getNormalisedAngle()
radius = self._get_min_radius(angle, centerx, centery,
width, height)
self.radius = min(self.radius, radius)
# Now that we now the radius we move the ticks as close as we can
# to the circle
for i, tick in enumerate(xticks):
slice = lookup.get(tick[0], None)
angle = slice.getNormalisedAngle()
self.ticks[i] = self._get_tick_position(self.radius, angle,
self.ticks[i],
centerx, centery)
def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx,
options.title,
options.titleFont,
options.titleFontSize,
options.encoding)[1]
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (options.padding.top
+ options.padding.bottom)
centerx = self.chart.x + self.chart.w * 0.5
centery = self.chart.y + self.chart.h * 0.5
angle = 0
angle_between =(2 * math.pi) / len(xticks)
self.angles = [angle]
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
for tick in xticks:
width, height = get_text_extents(cx, tick[1],
options.axis.tickFont,
options.axis.tickFontSize,
options.encoding)
radius = self._get_min_radius(angle, centerx, centery,
width, height)
self.radius = min(self.radius, radius)
angle += angle_between
self.angles.append(angle)
# Now that we now the radius we move the ticks as close as we can
# to the circle
for i, tick in enumerate(xticks):
self.ticks[i] = self._get_tick_position(self.radius, self.angles[i],
self.ticks[i],
centerx, centery)
def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx, options.title, options.titleFont,
options.titleFontSize,
options.encoding)[1]
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (options.padding.top +
options.padding.bottom)
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
def update(self, cx, options, width, height, xticks, yticks):
self.title.x = options.padding.left
self.title.y = options.padding.top
self.title.w = width - (options.padding.left + options.padding.right)
self.title.h = get_text_extents(cx,
options.title,
options.titleFont,
options.titleFontSize,
options.encoding)[1]
self.chart.x = self.title.x
self.chart.y = self.title.y + self.title.h
self.chart.w = self.title.w
self.chart.h = height - self.title.h - (options.padding.top
+ options.padding.bottom)
self.radius = min(self.chart.w / 2.0, self.chart.h / 2.0)
def _renderAxis(self, cx):
"""Renders the axis for radar charts"""
if self.options.axis.x.hide or not self.xticks:
return
self.xlabels = []
if self.debug:
px = max(cx.device_to_user_distance(1, 1))
cx.set_source_rgba(0, 0, 1, 0.5)
for x, y, w, h in self.layout.ticks:
cx.rectangle(x, y, w, h)
cx.stroke()
cx.arc(x + w / 2.0, y + h / 2.0, 5 * px, 0, 2 * math.pi)
cx.fill()
cx.arc(x, y, 2 * px, 0, 2 * math.pi)
cx.fill()
cx.select_font_face(self.options.axis.labelFont,
cairo.FONT_SLANT_NORMAL,
cairo.FONT_WEIGHT_NORMAL)
cx.set_font_size(self.options.axis.labelFontSize)
cx.set_source_rgb(*hex2rgb(self.options.axis.labelColor))
for i, tick in enumerate(self.xticks):
label = tick[1]
x, y, w, h = self.layout.ticks[i]
xb, yb, width, height, xa, ya = cx.text_extents(label)
# draw label with text tick[1]
cx.move_to(x - xb, y - yb)
cx.show_text(label)
self.xlabels.append(label)
# Draw y-axis
centerx = self.layout.chart.x + self.layout.chart.w * 0.5
centery = self.layout.chart.y + self.layout.chart.h * 0.5
cr = self.layout.radius / float(self.slice)
cx.set_line_width(self.options.axis.lineWidth)
cx.set_source_rgb(*hex2rgb(self.options.axis.lineColor))
if self.frame == 'circle':
for i in range(self.slice):
cx.move_to(centerx, centery)
cx.arc(centerx, centery, (i+1) * cr, 0, 2*math.pi)
else:
for i in range(self.slice):
for j, angle in enumerate(self.layout.angles):
x = centerx + math.cos(angle) * (i+1) * cr
y = centery + math.sin(angle) * (i+1) * cr
if j:
cx.line_to(x, y)
else:
cx.move_to(x, y)
cx.close_path()
cx.stroke()
cx.select_font_face(self.options.axis.tickFont,
cairo.FONT_SLANT_NORMAL,
cairo.FONT_WEIGHT_NORMAL)
cx.set_font_size(self.options.axis.tickFontSize)
cx.set_source_rgb(*hex2rgb(self.options.axis.labelColor))
for i in range(self.slice):
yval = "%.1f" % (self.maxyval / self.slice * (i+1))
tw, th = get_text_extents(cx, yval, self.options.axis.tickFont, self.options.axis.tickFontSize, self.options.encoding)
tx = centerx + (i+1) * cr - tw
cx.move_to(tx, centery+th)
cx.show_text(yval)
def _renderAxis(self, cx):
"""Renders the axis for radar charts"""
if self.options.axis.x.hide or not self.xticks:
return
self.xlabels = []
if self.debug:
px = max(cx.device_to_user_distance(1, 1))
cx.set_source_rgba(0, 0, 1, 0.5)
for x, y, w, h in self.layout.ticks:
cx.rectangle(x, y, w, h)
cx.stroke()
cx.arc(x + w / 2.0, y + h / 2.0, 5 * px, 0, 2 * math.pi)
cx.fill()
cx.arc(x, y, 2 * px, 0, 2 * math.pi)
cx.fill()
cx.select_font_face(self.options.axis.labelFont,
cairo.FONT_SLANT_NORMAL,
cairo.FONT_WEIGHT_NORMAL)
cx.set_font_size(self.options.axis.labelFontSize)
cx.set_source_rgb(*hex2rgb(self.options.axis.labelColor))
for i, tick in enumerate(self.xticks):
label = tick[1]
x, y, w, h = self.layout.ticks[i]
xb, yb, width, height, xa, ya = cx.text_extents(label)
# draw label with text tick[1]
cx.move_to(x - xb, y - yb)
cx.show_text(label)
self.xlabels.append(label)
# Draw y-axis
centerx = self.layout.chart.x + self.layout.chart.w * 0.5
centery = self.layout.chart.y + self.layout.chart.h * 0.5
cr = self.layout.radius / float(self.slice)
cx.set_line_width(self.options.axis.lineWidth)
cx.set_source_rgb(*hex2rgb(self.options.axis.lineColor))
if self.frame == 'circle':
for i in xrange(self.slice):
cx.move_to(centerx, centery)
cx.arc(centerx, centery, (i+1) * cr, 0, 2*math.pi)
else:
for i in xrange(self.slice):
for j, angle in enumerate(self.layout.angles):
x = centerx + math.cos(angle) * (i+1) * cr
y = centery + math.sin(angle) * (i+1) * cr
if j:
cx.line_to(x, y)
else:
cx.move_to(x, y)
cx.close_path()
cx.stroke()
cx.select_font_face(self.options.axis.tickFont,
cairo.FONT_SLANT_NORMAL,
cairo.FONT_WEIGHT_NORMAL)
cx.set_font_size(self.options.axis.tickFontSize)
cx.set_source_rgb(*hex2rgb(self.options.axis.labelColor))
for i in xrange(self.slice):
yval = "%.1f" % (self.maxyval / self.slice * (i+1))
tw, th = get_text_extents(cx, yval, self.options.axis.tickFont, self.options.axis.tickFontSize, self.options.encoding)
tx = centerx + (i+1) * cr - tw
cx.move_to(tx, centery+th)
cx.show_text(yval)
