65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""This submodule contains miscellaneous tools that are used internally, but
|
|
aren't specific to SVGs or related mathematical objects."""
|
|
|
|
# External dependencies:
|
|
from __future__ import division, absolute_import, print_function
|
|
import os
|
|
import sys
|
|
import webbrowser
|
|
|
|
|
|
# stackoverflow.com/questions/214359/converting-hex-color-to-rgb-and-vice-versa
|
|
def hex2rgb(value):
|
|
"""Converts a hexadeximal color string to an RGB 3-tuple
|
|
|
|
EXAMPLE
|
|
-------
|
|
>>> hex2rgb('#0000FF')
|
|
(0, 0, 255)
|
|
"""
|
|
value = value.lstrip('#')
|
|
lv = len(value)
|
|
return tuple(int(value[i:i+lv//3], 16) for i in range(0, lv, lv//3))
|
|
|
|
|
|
# stackoverflow.com/questions/214359/converting-hex-color-to-rgb-and-vice-versa
|
|
def rgb2hex(rgb):
|
|
"""Converts an RGB 3-tuple to a hexadeximal color string.
|
|
|
|
EXAMPLE
|
|
-------
|
|
>>> rgb2hex((0,0,255))
|
|
'#0000FF'
|
|
"""
|
|
return ('#%02x%02x%02x' % rgb).upper()
|
|
|
|
|
|
def isclose(a, b, rtol=1e-5, atol=1e-8):
|
|
"""This is essentially np.isclose, but slightly faster."""
|
|
return abs(a - b) < (atol + rtol * abs(b))
|
|
|
|
|
|
def open_in_browser(file_location):
|
|
"""Attempt to open file located at file_location in the default web
|
|
browser."""
|
|
|
|
# If just the name of the file was given, check if it's in the Current
|
|
# Working Directory.
|
|
if not os.path.isfile(file_location):
|
|
file_location = os.path.join(os.getcwd(), file_location)
|
|
if not os.path.isfile(file_location):
|
|
raise IOError("\n\nFile not found.")
|
|
|
|
# For some reason OSX requires this adjustment (tested on 10.10.4)
|
|
if sys.platform == "darwin":
|
|
file_location = "file:///"+file_location
|
|
|
|
new = 2 # open in a new tab, if possible
|
|
webbrowser.get().open(file_location, new=new)
|
|
|
|
|
|
BugException = Exception("This code should never be reached. You've found a "
|
|
"bug. Please submit an issue to \n"
|
|
"https://github.com/mathandy/svgpathtools/issues"
|
|
"\nwith an easily reproducible example.")
|