mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-16 10:34:31 +00:00
52 lines
2.0 KiB
Python
52 lines
2.0 KiB
Python
|
# IfcOpenShell - IFC toolkit and geometry engine
|
||
|
|
# Copyright (C) 2021 Thomas Krijnen <thomas@aecgeeks.com>
|
||
|
|
#
|
||
|
|
# This file is part of IfcOpenShell.
|
||
|
|
#
|
||
|
|
# IfcOpenShell is free software: you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
# the Free Software Foundation, either version 3 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# IfcOpenShell is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU Lesser General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU Lesser General Public License
|
||
|
|
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
import math
|
||
|
|
|
||
|
|
def station_as_string(station:float,plus_seperator=3,accuracy=3):
|
||
|
|
"""
|
||
|
|
Returns a stringized version of a station. Example 100.0 is 1+00.00 as a stationing string
|
||
|
|
@param station: the station to be stringized
|
||
|
|
@param plus_seperator: location of the '+' symbol relative to the decimal place (typically 2 for US units and 3 for SI units)
|
||
|
|
@param accuracy: number of digits following the decimal place
|
||
|
|
"""
|
||
|
|
value = math.fabs(station)
|
||
|
|
|
||
|
|
shifter = math.pow(10.0,plus_seperator)
|
||
|
|
v1 = math.floor(value/shifter)
|
||
|
|
v2 = value - v1*shifter
|
||
|
|
|
||
|
|
# Check to make sure that v2 is not basically the same as shifter
|
||
|
|
# If station = 69500.00000, we sometimes get 694+100.00 instead of 695+00.00
|
||
|
|
if math.isclose(v2-shifter,5.0*math.pow(10.0,-(accuracy+1))):
|
||
|
|
v2 = 0.0
|
||
|
|
v1 += 1
|
||
|
|
|
||
|
|
v1 = -1*v1 if station < 0 else v1
|
||
|
|
|
||
|
|
station_string = "{:d}+{:0{}.{}f}".format(v1,v2,plus_seperator+accuracy+1,accuracy)
|
||
|
|
|
||
|
|
# special case when v1 is 0 and station is negative, the string above doesn't get the leading
|
||
|
|
# negative sign. this snippet fixes that
|
||
|
|
if v1 == 0 and station < 0:
|
||
|
|
station_string = "-" + station_string
|
||
|
|
|
||
|
|
return station_string
|
||
|
|
|
||
|
|
|