Source code for ladybug.legendparameters
# coding=utf-8
from color import ColorRange
from listoperations import flatten, unflatten
[docs]class LegendParameters(object):
"""Ladybug lagend parameters.
Attributes:
legend_range: Input a list of numbers or strings to set the boundary of
legend. The default is ['min', 'max']
number_of_segments: An interger representing the number of steps between
the high and low boundary of the legend. The default is set to 11
and any custom values put in here should always be greater than or
equal to 2.
colors: An optional list of colors. Default is Ladybug's default colorset
chart_type: 0: continuous, 1: segmented, 2: ordinal. Default: 0.
Ordinal values can be strings and well as numericals
title: Legend title. It's usually analysis unit
font: An optional text string that sets the font of the text. Examples
include "Arial", "Times New Roman" or "Courier" (all without
quotations). The text input here can be any font that is on your
computer but the font must be of an Editable file type (as seen in
the font folder off of your control panel). Font files that are
print and Preview will not work. If you wish to use a Bold version
of the font, include a ", Bold" at the end of the font name
(example: "Arial, Bold").
fontSize: An optional number to set the size of the text in model's units.
scale: Input a number here to change the scale of the legend.
The default is set to 1.
basePlane: Input a plane to change the location and orientation of the
legend. The default is set to the right of the analysis scene in
XY plane.
vertical: Set to False to get a horizontal legend. Default is vertical.
Usage:
lp = LegendParameters(legend_range = [2, 28])
print(lp.color(10))
"""
_cType = {0: 'continuous', 1: 'segmented', 2: 'ordinal'}
# TODO: Add textual and geometry parts
def __init__(self, legend_range=None, number_of_segments=11,
colors=None, chart_type=0):
"""Init the class."""
legend_range = legend_range or ['min', 'max']
self.number_of_segments = number_of_segments or 11
self.colorRange = ColorRange(colors=colors, domain=legend_range,
chart_type=chart_type)
@property
def colors(self):
"""Get or set list of colors."""
return self.colorRange.colors
@colors.setter
def colors(self, cols):
self.colorRange.colors = cols
@property
def domain(self):
"""Get or set color range domain."""
return self.colorRange.domain
# TODO: set the domain based on the number of segments
@domain.setter
def domain(self, dom):
self.colorRange.domain = dom
@property
def is_domain_set(self):
"""Check if the domain is set."""
return self.colorRange.is_domain_set
[docs] def set_domain(self, values):
"""Set domain of the colors based on min and max of a list of values."""
_flattenedList = sorted(flatten(values))
self.domain = tuple(_flattenedList[0] if d == 'min' else d for d in self.domain)
self.domain = tuple(_flattenedList[-1] if d == 'max' else d for d in self.domain)
[docs] def calculate_colors(self, values):
"""Return a list (or list of lists) of colors based on input values."""
# set domain if it is not set
_flattenedList = list(flatten(values))
if not self.is_domain_set:
self.set_domain(_flattenedList)
_flattenedColors = range(len(_flattenedList))
for count, value in enumerate(_flattenedList):
_flattenedColors[count] = self.calculate_color(value)
return unflatten(values, iter(_flattenedColors))
[docs] def calculate_color(self, value):
"""Calculate color for a specific value."""
return self.colorRange.color(value)
[docs] def geometry(self):
"""Calculate legend geometry."""
raise NotImplementedError()
[docs] def text(self):
"""Return legend text."""
raise NotImplementedError()
[docs] def ToString(self):
"""Overwrite .NET ToString."""
return self.__repr__()
def __repr__(self):
"""Legend representation."""
return "{} legend parameters".format(self._cType[self.colorRange.ctype])