def __init__(self, series_set, scale, style=None, vertical_scale=True, stacked=True, zero_base=True): """ Constructor; creates a new LineGraph. @param mseries: The data to plot, as a MultiSeries @type mseries: graphication.series.MultiSeries @param style: The Style to apply to this graph @type style: graphication.style.Style @param scale: The Scale to use for the graph. @type scale: graphication.scales.BaseScale @param smoothed: If the graph is smoothed (not straight lines) @type smoothed: bool """ self.series_set = series_set self.style = default_css.merge(style) self.scale = scale self.stacked = stacked self.zero_base = zero_base self.vertical_scale = vertical_scale # Initialise the vertical scale if stacked: y_min, y_max = self.stacked_value_range() else: y_min, y_max = self.series_set.value_range() if self.zero_base: y_min = 0 self.y_scale = VerticalWavegraphScale(y_min, y_max)
def __init__(self, series_set, scale, style=None, vertical_scale=None, zero_base=True, label_on=True, stacked=True, sharp_edges=True, top_only=False, border_only=False):
"""
Constructor; creates a new CurvyBarChart.
"""
self.series_set = series_set
self.style = default_css.merge(style)
self.scale = scale
self.label_height = style['curvybarchart label'].get_float("height", 30)
self.label_on = label_on
self.zero_base = zero_base
self.stacked = stacked
self.sharp_edges = sharp_edges
self.top_only = top_only
self.border_only = border_only
if vertical_scale is None:
if stacked:
y_min, y_max = self.stacked_value_range()
else:
y_min, y_max = self.series_set.value_range()
if self.zero_base:
y_min = 0
vertical_scale = VerticalWavegraphScale(y_min, y_max)
self.y_scale = vertical_scale
def calc_rel_points(self):
"""Calculates the relative shapes of the sections"""
# Get the style stuff
y_offset = self.style['wavegraph'].get_align("vertical-align", 0.5)
y_size = self.style['wavegraph'].get_align("height", 0.9)
# Work out our extents
y_total = max([total for (key, total) in self.series_set.totals()])
self.y_scale = VerticalWavegraphScale(0, y_total)
# Calculate the points
cols = []
self.xs = []
for x, stack in self.series_set.stacks():
self.xs.append(self.scale.get_point(x))
# Collect the points
ys = []
total = 0
for ser, val in stack:
y = self.y_scale.get_point(val) * y_size
ys.append(total)
total += y
ys.append(total)
shift = 1 - total
# Shift them down to center them
ys = [a + (shift * y_offset) for a in ys]
cols.append(ys)
self.rows = list(zip(*cols))
def calc_rel_points(self):
"""Calculates the relative shapes of the sections"""
if isinstance(self.vertical_scale, BaseScale):
self.y_scale = self.vertical_scale
else:
# Work out our extents
y_min, y_max = self.series_set.value_range()
if self.zero_base:
y_min = 0
self.y_scale = VerticalWavegraphScale(y_min, y_max)
