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Parametric_Curve_FP.FCMacro
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Parametric_Curve_FP.FCMacro
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# -*- coding: utf-8 -*-
__version__ = "2024.05.08b"
#__version__ = "2024.05.08b"
#__title__ = "Parametric_Curve_FP"
#__author__ = "<TheMarkster> 2021, based on macro 3D Parametric Curve by Gomez Lucio, Modified by Laurent Despeyroux on 9th feb 2015"
#__license__ = "LGPL 2.1"
#__doc__ = "Parametric curve from formula"
#__usage__ = '''Activate the tool and modify properties as desired'''
#
#
#import FreeCAD, FreeCADGui
#from pivy import coin
#from math import *
#import statistics
#import Part
#import json
#import os, sys
#import subprocess, os
#import platform
#import re
#from PySide import QtGui,QtCore
#
#
## Albert Einstein once remarked how he "stood on the shoulders of giants" in giving credit to those
## great thinkers who came before him and who helped pave the way for his Theory of Relativity.
## I'm certainly no Einstein, but in making this macro, I, too, have built upon the work of others
## who came before. Thanks, in particular, to Gomez Lucio, author of the original parametric curve
## macro, and to Laurent Despeyroux, who extended it, and Paul McGuire for his work on FourFn parser.
## Also thanks to users openBrain and edwilliams16 of the FreeCAD forum for their help with regular
## expression parsing and testing / debugging / helping with other coding aspects.
#
## In order to avoid using eval() and the security implications therefrom, I have borrowed and modified
## some code for using pyparsing. I added the ability to include a dictionary of constants to evaluate().
## For example, evaluate("a+b*3", {"a":1,"b":2}) evalutes to 7. I also added some additional math functions
## to the fn dictionary. And user edwilliams16 at the FreeCAD forum has fixed a bug in the fnumber
## regular expression, which was failing in cases of ".5" instead of "0.5". --Mark
#
## <begin imported code from FourFN.py>
#
## https://github.com/pyparsing/pyparsing/blob/master/examples/fourFn.py
##
#
## fourFn.py
##
## Demonstration of the pyparsing module, implementing a simple 4-function expression parser,
## with support for scientific notation, and symbols for e and pi.
## Extended to add exponentiation and simple built-in functions.
## Extended test cases, simplified pushFirst method.
## Removed unnecessary expr.suppress() call (thanks Nathaniel Peterson!), and added pyparsing.Group
## Changed fnumber to use a pyparsing.Regex, which is now the preferred method
## Reformatted to latest pypyparsing features, support multiple and variable args to functions
##
## Copyright 2003-2019 by Paul McGuire
##
## ------- added by <TheMarkster> -- to fix conflict with another addon
#syspath = sys.path
#newsyspath = [sp for sp in sys.path if not "cadquery" in sp]
#sys.path = newsyspath
#import pyparsing
#import importlib
#importlib.reload(pyparsing)
##-------------
##from pyparsing import (
## pyparsing.Literal,
## pyparsing.Word,
## pyparsing.Group,
## pyparsing.Forward,
## pyparsing.alphas,
## pyparsing.alphanums,
## pyparsing.Regex,
## pyparsing.ParseException,
## pyparsing.CaselessKeyword,
## pyparsing.Suppress,
## pyparsing.delimitedList,
##)
##----------------
#sys.path = syspath
## ------- end <TheMarkster> code
#import math
#import operator
#
#exprStack = []
#
#
#def push_first(toks):
# exprStack.append(toks[0])
#
#
#def push_unary_minus(toks):
# for t in toks:
# if t == "-":
# exprStack.append("unary -")
# else:
# break
#
#
#bnf = None
#
#
#def BNF():
# '''
# expop :: '^'
# multop :: '*' | '/'
# addop :: '+' | '-'
# integer :: ['+' | '-'] '0'..'9'+
# atom :: PI | E | real | fn '(' expr ')' | '(' expr ')'
# factor :: atom [ expop factor ]*
# term :: factor [ multop factor ]*
# expr :: term [ addop term ]*
# '''
# global bnf
# if not bnf:
# # use pyparsing.CaselessKeyword for e and pi, to avoid accidentally matching
# # functions that start with 'e' or 'pi' (such as 'exp'); Keyword
# # and pyparsing.CaselessKeyword only match whole words
# e = pyparsing.CaselessKeyword("E")
# pi = pyparsing.CaselessKeyword("PI")
# # fnumber = Combine(pyparsing.Word("+-"+nums, nums) +
# # Optional("." + Optional(pyparsing.Word(nums))) +
# # Optional(e + pyparsing.Word("+-"+nums, nums)))
# # or use provided pyparsing_common.number, but convert back to str:
# # fnumber = ppc.number().addParseAction(lambda t: str(t[0]))
# #fnumber = pyparsing.Regex(r"[+-]?\d+(?:\.\d*)?(?:[eE][+-]?\d+)?")
# fnumber = pyparsing.Regex(r'[-+]?(?:(?:\d*\.\d+)|(?:\d+\.?))(?:[Ee][+-]?\d+)?')
# ident = pyparsing.Word(pyparsing.alphas, pyparsing.alphanums + "_$")
#
# plus, minus, mult, div = map(pyparsing.Literal, "+-*/")
# lpar, rpar = map(pyparsing.Suppress, "()")
# addop = plus | minus
# multop = mult | div
# expop = pyparsing.Literal("^")
#
# expr = pyparsing.Forward()
# expr_list = pyparsing.delimitedList(pyparsing.Group(expr))
# # add parse action that replaces the function identifier with a (name, number of args) tuple
# def insert_fn_argcount_tuple(t):
# fn = t.pop(0)
# num_args = len(t[0])
# t.insert(0, (fn, num_args))
#
# fn_call = (ident + lpar - pyparsing.Group(expr_list) + rpar).setParseAction(
# insert_fn_argcount_tuple
# )
# atom = (
# addop[...]
# + (
# (fn_call | pi | e | fnumber | ident).setParseAction(push_first)
# | pyparsing.Group(lpar + expr + rpar)
# )
# ).setParseAction(push_unary_minus)
#
# # by defining exponentiation as "atom [ ^ factor ]..." instead of "atom [ ^ atom ]...", we get right-to-left
# # exponents, instead of left-to-right that is, 2^3^2 = 2^(3^2), not (2^3)^2.
# factor = pyparsing.Forward()
# factor <<= atom + (expop + factor).setParseAction(push_first)[...]
# term = factor + (multop + factor).setParseAction(push_first)[...]
# expr <<= term + (addop + term).setParseAction(push_first)[...]
# bnf = expr
# return bnf
#
#
## map operator symbols to corresponding arithmetic operations
#epsilon = 1e-12
#opn = {
# "+": operator.add,
# "-": operator.sub,
# "*": operator.mul,
# "/": operator.truediv,
# "^": operator.pow,
#}
#
#fn = {
# "sin": math.sin,
# "sinh": math.sinh,
# "cos": math.cos,
# "cosh": math.cosh,
# "tan": math.tan,
# "tanh": math.tanh,
# "exp": math.exp,
# "atan": math.atan,
# "atanh": math.atanh,
# "acos": math.acos,
# "acosh": math.acosh,
# "asin": math.asin,
# "asinh": math.asinh,
# "sqrt": math.sqrt,
# "ceil": math.ceil,
# "floor": math.floor,
# "log": math.log,
# "factorial":math.factorial,
# "abs": abs,
# "degrees": math.degrees,
# "degree": math.degrees,
# "deg": math.degrees,
# "lgamma": math.lgamma,
# "gamma": math.gamma,
# "radians": math.radians,
# "rad": math.radians,
# "trunc": int,
# "round": round,
# "sgn": lambda a: -1 if a < -epsilon else 1 if a > epsilon else 0,
# # functionsl with multiple arguments
# "copysign": lambda a, b: 1 * (math.copysign(a,b)),
# "multiply": lambda a, b: a * b,
# "mod": lambda a, b: a % b,
# "interval": lambda a, b, t: 1 * ((t >= a) and (t < b)),
# "lt":lambda a, b: 1 * (a < b),
# "lte": lambda a, b: 1 * (a <= b),
# "gt": lambda a, b: 1 * (a > b),
# "gte": lambda a, b: 1 * (a >= b),
# "isequal": lambda a, b: 1 * (a == b),
# "isclose": lambda a, b: 1 * (math.isclose(a, b, abs_tol = 1e-9)),
# "isclosetol": lambda a, b, tol: 1 * (math.isclose(a, b, abs_tol = tol)),
# "floordiv": lambda a, b: a // b,
# "atan2": lambda a, b: math.atan2(a, b),
# "perm": lambda a, b: math.perm(a, b),
# "hypot": math.hypot,
# "ternary": lambda a, b, c: b if a else c,
# # functions with a variable number of arguments
# "any": lambda *a: 1 * any(a),
# "all": lambda *a: 1 * all(a),
# "sum": lambda *a: sum(a),
# "avg": lambda *a: sum(a)/float(len(a)),
# "mean": lambda *a: sum(a)/float(len(a)),
# "gmean": lambda *a: statistics.geometric_mean(a),
# "hmean": lambda *a: statistics.harmonic_mean(a),
# "mode": lambda *a: statistics.mode(a),
# "median": lambda *a: statistics.median(a),
# "stdev": lambda *a: statistics.stdev(a),
# "prod": lambda *a: math.prod(a),
#}
#
#
#def evaluate_stack(s,vars):
# op, num_args = s.pop(), 0
# if isinstance(op, tuple):
# op, num_args = op
# if op == "unary -":
# return -evaluate_stack(s,vars)
# if op in "+-*/^":
# # note: operands are pushed onto the stack in reverse order
# op2 = evaluate_stack(s,vars)
# op1 = evaluate_stack(s,vars)
# return opn[op](op1, op2)
# elif op == "PI":
# return math.pi # 3.1415926535
# elif op == "E":
# return math.e # 2.718281828
# elif op in vars:
# return vars[op]
# elif op in fn:
# # note: args are pushed onto the stack in reverse order
# args = reversed([evaluate_stack(s,vars) for _ in range(num_args)])
# return fn[op](*args)
# elif op[0].isalpha():
# raise Exception("invalid identifier '%s'" % op)
# else:
# # try to evaluate as int first, then as float if int fails
# try:
# return int(op)
# except ValueError:
# return float(op)
#
## vars is a dictionary of variable names
## example:
## vars = {"a":1,"b":2}
## then where "a" or "b" is found a value is substituted
## evaluate("a+b",vars) thus returns 3 --Mark
#
#def evaluate(s, vars={}):
# if s == "": #return 0 in case the user has left the field blank --Mark
# return 0
# s= checkForFCEval(s)
#
#
# exprStack[:] = []
# try:
# results = BNF().parseString(s, parseAll=True)
# val = evaluate_stack(exprStack[:],vars)
# except pyparsing.ParseException as pe:
# raise Exception(s, "failed parse:", str(pe))
# except Exception as e:
# raise Exception (s, "failed eval:", str(e), exprStack)
# else:
# return val
#
## implement FreeCAD.DocumentObject.evalExpression(str)
## usage: fc(freecad_expression_string)
#
#def checkForFCEval(s):
# if "fc(" in s:
# idx = s.index("fc(")
# idx2 = s.index(")",idx)+1
# fc_Total = s[idx:idx2] #example fc(dd.ddFloat)
# fc_Eval = fc_Total[3:-1] # example dd.ddFloat
# if "fc(" in fc_Eval:
# FreeCAD.Console.PrintError("ParametricCurve::Unsupported -- Nested fc(expr) functions not supported.\n")
# evaluated = FreeCAD.ActiveDocument.Objects[0].evalExpression(fc_Eval)
# evaluated = evaluated.Value if hasattr(evaluated,"Value") else evaluated
# s = s.replace(fc_Total,str(evaluated))
# return checkForFCEval(s) #in case there are multiple fc(expr) calls in the same string
# else:
# return s
#
## <end imported code from FourFn.py>
#
#
#class Curve:
# def __init__(self, obj):
# obj.addExtension("Part::AttachExtensionPython")
# obj.addProperty("App::PropertyLinkList","Dependencies","Curve",
#"If using fc(expr) to link to another object, add the object to these links to force parametric recomputes when that object changes")
# obj.addProperty("App::PropertyString","a","Equation1(a,b,c)","a(t)").a="6"
# obj.addProperty("App::PropertyString","b","Equation1(a,b,c)","b(a,t)").b="1"
# obj.addProperty("App::PropertyString","c","Equation1(a,b,c)","c(a,b,t)").c="20"
# obj.addProperty("App::PropertyStringList","d","Equation1(a,b,c)","d1(a,b,c,t)"+chr(10)+"d2(a,b,c,t,d1)"+chr(10)+"d3(a,b,c,t,d1,d2)"+chr(10)+"d4(a,b,c,t,d1,d2,d3)"+chr(10)+"..."+chr(10))
# obj.addProperty("App::PropertyString","X","Equation2(X,Y,Z)","X(a,b,c,d1-dN,t)").X="(a+b*cos(c*t))*cos(t)"
# obj.addProperty("App::PropertyString","Y","Equation2(X,Y,Z)","Y(a,b,c,d1-dN,X,t)").Y="(a+b*cos(c*t))*sin(t)"
# obj.addProperty("App::PropertyString","Z","Equation2(X,Y,Z)","Z(a,b,c,d1-dN,X,Y,t)").Z="b*sin(c*t)"
# obj.addProperty("App::PropertyFloat","F_a","Floats","a as a float if it is a constant (readonly)")
# obj.addProperty("App::PropertyFloat","F_b","Floats","b as a float if it is a constant (readonly)")
# obj.addProperty("App::PropertyFloat","F_c","Floats","c as a float if it is a constant (readonly)")
# obj.addProperty("App::PropertyFloatList","F_d","Floats","di as a float if it is a constant (readonly)\n\
#1-indexed, e.g. F_d[1] = d1, F_d[2] = d2, etc.")
# obj.addProperty("App::PropertyFloat","F_X","Floats","X as a float if it is a constant (readonly)")
# obj.addProperty("App::PropertyFloat","F_Y","Floats","Y as a float if it is a constant (readonly)")
# obj.addProperty("App::PropertyFloat","F_Z","Floats","Z as a float if it is a constant (readonly)")
# for prop in ["F_a","F_b","F_c","F_d","F_X","F_Y","F_Z"]:
# obj.setEditorMode(prop,1) #readonly
# obj.addProperty("App::PropertyFloat","t_min","Equation3(T Params)","start value for t").t_min = 0.0
# obj.addProperty("App::PropertyFloat","t_max","Equation3(T Params)","Max t").t_max = 2*pi
# obj.addProperty("App::PropertyFloat","Interval","Equation3(T Params)","Interval").Interval = 0.1
# obj.addProperty("App::PropertyBool","Closed","Curve","Whether curve is closed").Closed=False
# obj.addProperty("App::PropertyBool","PlusOneIteration","Curve","Fixes a bug, but changes existing behavior. Set to False if it breaks an existing model.").PlusOneIteration = True
# obj.addProperty("App::PropertyVectorList","Points","Curve","Points used to make the curve. Regenerated each recompute.").Points =[]
# obj.addProperty("App::PropertyString","Version", "Base", "Version this object was created with").Version = __version__
# obj.addProperty("App::PropertyEnumeration","ShapeType","Curve","Options: BSpline, Polygon, Points").ShapeType=["BSpline","Polygon","Points"]
# obj.ShapeType = "BSpline" #default
# obj.addProperty("App::PropertyLink","Spreadsheet","Spreadsheet","Link a spreadsheet")
# obj.addProperty("App::PropertyBool","UpdateSpreadsheet","Spreadsheet","[Trigger] Push current formula to linked spreadsheet, creates one and links it if necessary.").UpdateSpreadsheet=False
# obj.addProperty("App::PropertyBool","UseSpreadsheet","Spreadsheet","If True, poperties are readonly and must come from spreadsheet. If false, spreadsheet is ignored and properties are set to read/write.").UseSpreadsheet=False
# obj.addProperty("App::PropertyString","Continuity","Curve","Continuity of Curve")
# obj.setEditorMode('Continuity',1)
# obj.addProperty("App::PropertyBool","MakeFace","Curve","Make a face from curve object if possible. Can't be done with points or if shape isn't closed.")
# obj.addProperty("App::PropertyFile","File","JSON","JSON format file to contain data")
# obj.setEditorMode("File",2)#hidden
# obj.addProperty("App::PropertyBool","Sorted","JSON", "Sort formula names")
# obj.addProperty("App::PropertyEnumeration","Formulas","JSON","Formulas in JSON data").Formulas=["formula"]
# obj.addProperty("App::PropertyBool","EditFormulas","JSON","[Trigger] brings up editor dialog")
## obj.addProperty("App::PropertyBool","WriteFile","JSON","[Trigger] Updates JSON file with current data. WARNING: will overwrite all current data, use AppendFile to add current formula to file.").WriteFile = False
## obj.addProperty("App::PropertyBool","RenameFormula","JSON","[Trigger] Changes current Formula name to string in FormulaName").RenameFormula = False
# obj.addProperty("App::PropertyString","FormulaName","JSON","Modify this for changing formula name, and then toggle Rename Formula to True")
# obj.setEditorMode("FormulaName",2) #hidden --renaming now done in editor
## obj.addProperty("App::PropertyBool","NewFormula","JSON","[Trigger] Creates new formula adds to Formulas").NewFormula = False
## obj.addProperty("App::PropertyBool","OpenFile","JSON","[Trigger] Opens JSON file in default system editor for text files.").OpenFile = False
## obj.addProperty("App::PropertyBool","ReadFile","JSON","[Trigger] Reads JSON file. WARNING: will clobber current formula, use AppendFile to save current formula to file before reading if you want to save it").OpenFile = False
## obj.addProperty("App::PropertyBool","AppendFile","JSON","[Trigger] Appends current formula to JSON file.").AppendFile = False
## obj.addProperty("App::PropertyBool","DeleteFormula","JSON","[Trigger] Removes current formula from internal data, does not modify JSON file").DeleteFormula=False
# obj.Proxy = self
# self.JSON_Data = {}
# self.previousFormula = ""
# self.bInihibitUpdates = False
# self.bInhibitRecompute = False
# self.newFormula(obj) #initialize with a new formula
# self.editingMode = False
# self.fpName = obj.Name
#
# def setReadOnly(self,fp,bReadOnly):
# '''if bReadOnly = True, we set the properties linked to the spreadsheet readonly, else set them normal mode'''
# if bReadOnly:
# mode = 1
# else:
# mode = 0
# if not hasattr(fp,"a"):
# return
# fp.setEditorMode('a',mode)
# fp.setEditorMode('b',mode)
# fp.setEditorMode('c',mode)
# fp.setEditorMode('d',mode)
# fp.setEditorMode('X',mode)
# fp.setEditorMode('Y',mode)
# fp.setEditorMode('Z',mode)
# fp.setEditorMode('t_min',mode)
# fp.setEditorMode('t_max',mode)
# fp.setEditorMode('Interval',mode)
#
# def readJSONFile(self,fp,txt=None):
# if txt == None:
# if not self.checkFile(fp):
# return
# try:
# f = open(fp.File)
# except:
# #could not open file
# #assume user entered name for new file
# f = open(fp.File,"w")
# f.close()
# FreeCAD.Console.PrintMessage("New JSON file created: "+str(os.path.realpath(f.name))+chr(10))
# self.writeJSONFile(fp)
# fp.File = os.path.realpath(f.name)
# return
# self.JSON_Data = json.load(f)
# f.close()
# else: #txt != None
# self.JSON_Data = json.loads(txt)
# #now rename any "t" to "t_min"
# for k,v in self.JSON_Data.items():
# if "t" in v.keys():
# self.JSON_Data[k]["t_min"] = self.JSON_Data[k]["t"]
# self.JSON_Data[k].pop("t")
# FreeCAD.Console.PrintMessage(f"ParametricCurve: renaming 't' to 't_min' in {k}"+chr(10))
# formula_names = []
# for pn in self.JSON_Data:
# formula_names.append(pn)
# fp.Formulas = sorted(formula_names) if hasattr(fp,"Sorted") and fp.Sorted else formula_names
# #Formulas, when the left hand operand, accepts a list
# #but when the right hand operand, it gives a string, the current formula
# self.bInihibitUpdates=True
# self.updateJSONFormula(fp,fp.Formulas)
# self.bInihibitUpdates=False
#
# def deleteFormula(self,fp):
# if not fp.FormulaName:
# FreeCAD.Console.PrintError("No formula selected."+chr(10))
# return
# self.JSON_Data.pop(fp.FormulaName,None)
# if len(self.JSON_Data.keys()) == 0:
# FreeCAD.Console.PrintMessage("Must have at least one formula, new one created using existing equations."+chr(10))
# self.newFormula(fp) #must have at least one formula
# FreeCAD.ActiveDocument.recompute()
# fp.Formulas = list(self.JSON_Data.keys())
#
# def appendFile(self,fp):
# if not self.checkFile(fp):
# return
# try:
# f = open(fp.File)
# except:
# #could not open file
# #assume user entered name for new file
# f = open(fp.File,"w")
# f.close()
# FreeCAD.Console.PrintMessage("New JSON file created: "+str(os.path.realpath(f.name))+""+chr(10))
# self.writeJSONFile(fp)
# fp.File = os.path.realpath(f.name)
# return
# data = json.load(f) #load current data first
# f.close()
# for formula in self.JSON_Data.keys():
# if formula in data: #find a new unique name for this formula and append it
# FreeCAD.Console.PrintWarning("Skipping: "+formula+" (already in file). Rename "+formula+" and try again, if desired."+chr(10))
# else: #formula not already in data file
# FreeCAD.Console.PrintMessage("Appending: "+formula+" to file."+chr(10))
# data[formula] = self.JSON_Data[formula]
#
# with open(fp.File,"w") as outfile:
# json.dump(data,outfile)
#
# def checkFile(self,fp):
# if not fp.File: #checks to see if there is filename in File property
# FreeCAD.Console.PrintError("No linked JSON file. Create a new JSON file or link one via the File property. You can also just enter a name in the File property to create a new file."+chr(10))
# return False
# return True
#
# def writeJSONFile(self,fp):
# if not self.checkFile(fp):
# return
# if self.JSON_Data == {}:
# self.JSON_Data = { #new file, so we just get the one formula
# "formula":{
# "a":fp.a,
# "b":fp.b,
# "c":fp.c,
# "d":fp.d,
# "X":fp.X,
# "Y":fp.Y,
# "Z":fp.Z,
# "t_min":str(fp.t) if hasattr(fp,"t") else str(fp.t_min),
# "t_max":str(fp.t_max),
# "interval":str(fp.Interval)
# }}
# with open(fp.File,"w") as outfile:
# json.dump(self.JSON_Data,outfile)
#
# def renameFormula(self,fp):
# newName = fp.FormulaName
# if fp.Formulas in self.JSON_Data.keys():
# self.JSON_Data[fp.FormulaName] = self.JSON_Data.pop(fp.Formulas)
# fp.Formulas = list(self.JSON_Data.keys())
# fp.Formulas = newName
#
# def newFormula(self,fp):
#
# ii = 1
# trialName = "formula"
# while (trialName in self.JSON_Data):
# ii += 1
# trialName = "formula"+str(ii)
#
# self.JSON_Data[trialName] ={
# "a":fp.a,
# "b":fp.b,
# "c":fp.c,
# "d":fp.d,
# "X":fp.X,
# "Y":fp.Y,
# "Z":fp.Z,
# "t_min":str(fp.t) if hasattr(fp,"t") else str(fp.t_min),
# "t_max":str(fp.t_max),
# "interval":str(fp.Interval)
# }
# fp.Formulas = list(self.JSON_Data.keys())
# fp.Formulas = trialName
# fp.FormulaName = trialName
#
# def updateJSON_Data(self,fp,formulaName): #update json data from current fp settings
# if hasattr(fp,"a"):
# self.JSON_Data[formulaName]["a"] = fp.a
# if hasattr(fp,"b"):
# self.JSON_Data[formulaName]["b"] = fp.b
# if hasattr(fp,"c"):
# self.JSON_Data[formulaName]["c"] = fp.c
# if hasattr(fp,"d"):
# self.JSON_Data[formulaName]["d"] = fp.d
# if hasattr(fp,"X"):
# self.JSON_Data[formulaName]["X"] = fp.X
# if hasattr(fp,"Y"):
# self.JSON_Data[formulaName]["Y"] = fp.Y
# if hasattr(fp,"Z"):
# self.JSON_Data[formulaName]["Z"] = fp.Z
# if hasattr(fp,"t"):
# self.JSON_Data[formulaName]["t"] = str(fp.t)
# if hasattr(fp,"t_min"):
# self.JSON_Data[formulaName]["t_min"] = str(fp.t_min)
# if hasattr(fp,"t_max"):
# self.JSON_Data[formulaName]["t_max"] = str(fp.t_max)
# if hasattr(fp,"Interval"):
# self.JSON_Data[formulaName]["interval"] = str(fp.Interval)
#
# def updateJSONFormula(self,fp,formulaName):
# #FreeCAD.Console.PrintMessage("updateJSONFormula"+chr(10))
# #when changing formulas if expressions are used the expressions override the new
# #values from the formula, so we try to set them all to None
# if not hasattr(fp,"a"):
# return
# if bool(fp.ExpressionEngine):
# propstrs = ["a","b","c","X","Y","Z","t","t_min","t_max","interval"]
# for propstr in propstrs:
# try:
# fp.setExpression(propstr,None)
# except Exception:
# pass
# FreeCAD.Console.PrintWarning("ParameticCurve: clearing expressions\n")
# fp.a = self.JSON_Data[formulaName]["a"]
# fp.b = self.JSON_Data[formulaName]["b"]
# fp.c = self.JSON_Data[formulaName]["c"]
# fp.d = self.JSON_Data[formulaName]["d"]
# fp.X = self.JSON_Data[formulaName]["X"]
# fp.Y = self.JSON_Data[formulaName]["Y"]
# fp.Z = self.JSON_Data[formulaName]["Z"]
# if hasattr(fp,"t"):
# fp.t = evaluate(self.stripComments(self.JSON_Data[formulaName]["t_min"]))
# else:
# fp.t_min = evaluate(self.stripComments(self.JSON_Data[formulaName]["t_min"]))
# fp.t_max = evaluate(self.stripComments(self.JSON_Data[formulaName]["t_max"]))
# fp.Interval = evaluate(self.stripComments(self.JSON_Data[formulaName]["interval"]))
#
#
# def updateToSpreadsheet(self,fp):
# sheet = None
# if fp.Spreadsheet == None:
# sheet = FreeCAD.ActiveDocument.addObject("Spreadsheet::Sheet","PC_Sheet")
# fp.Spreadsheet = sheet
# FreeCAD.Console.PrintMessage("Spreadsheet linked.\\nSet Use Spreadsheet to True to use those aliases."+chr(10))
#
# if not hasattr(fp.Spreadsheet,"a_cell"):
# if not sheet and fp.UseSpreadsheet: #not a new spreadsheet, but one already that exists
# from PySide import QtGui
# mw = QtGui.QApplication.activeWindow()
# items = ["Add aliases to spreadsheet","Cancel"]
# item,ok = QtGui.QInputDialog.getItem(mw,"Set aliases","Warning: setting aliases will clobber any existing data in cells A1 - B9. Set aliases anyway?",items,0)
# if ok and item == items[0]:
# sheet = fp.Spreadsheet
# else:
# return
#
# if sheet:
# fp.Spreadsheet.set('A1',"a_cell")
# fp.Spreadsheet.setAlias('B1',"a_cell")
# fp.Spreadsheet.set('A2',"b_cell")
# fp.Spreadsheet.setAlias('B2',"b_cell")
# fp.Spreadsheet.set('A3',"c_cell")
# fp.Spreadsheet.setAlias('B3',"c_cell")
# fp.Spreadsheet.set('A4',"X")
# fp.Spreadsheet.setAlias('B4',"X")
# fp.Spreadsheet.set('A5',"Y")
# fp.Spreadsheet.setAlias('B5',"Y")
# fp.Spreadsheet.set('A6',"Z")
# fp.Spreadsheet.setAlias('B6',"Z")
# fp.Spreadsheet.set('A7',"t_min")
# fp.Spreadsheet.setAlias('B7',"t_min")
# fp.Spreadsheet.set('A8',"t_max")
# fp.Spreadsheet.setAlias('B8',"t_max")
# fp.Spreadsheet.set('A9',"interval")
# fp.Spreadsheet.setAlias('B9',"interval")
# for dd in range(0,len(fp.d)):
# fp.Spreadsheet.set('A'+str(dd+10),'d'+str(dd+1))
# fp.Spreadsheet.setAlias('B'+str(dd+10),'d'+str(dd+1))
# fp.Spreadsheet.set('a_cell',self.stripComments(fp.a))
# fp.Spreadsheet.set('b_cell',self.stripComments(fp.b))
# fp.Spreadsheet.set('c_cell',self.stripComments(fp.c))
# for dd in range(0,len(fp.d)):
# fp.Spreadsheet.set('A'+str(dd+10),'d'+str(dd+1))
# fp.Spreadsheet.setAlias('B'+str(dd+10),'d'+str(dd+1))
# fp.Spreadsheet.set('d'+str(dd+1),self.stripComments(fp.d[dd]))
# fp.Spreadsheet.set('X',self.stripComments(fp.X))
# fp.Spreadsheet.set('Y',self.stripComments(fp.Y))
# fp.Spreadsheet.set('Z',self.stripComments(fp.Z))
# if hasattr(fp,"t"):
# fp.Spreadsheet.set('t_min',str(fp.t))
# else:
# fp.Spreadsheet.set('t_min',str(fp.t_min))
# fp.Spreadsheet.set('t_max',str(fp.t_max))
# fp.Spreadsheet.set('interval',str(fp.Interval))
#
#
# def updateFromSpreadsheet(self,fp):
# if not fp.Spreadsheet or not hasattr(fp.Spreadsheet,"a_cell"):
# return
# if fp.UseSpreadsheet == False:
# self.setReadOnly(fp,False)
# return
# else:
# self.setReadOnly(fp,True)
# doc = FreeCAD.ActiveDocument
# doc.openTransaction("Update from Spreadsheet")
#
# fp.a=str(fp.Spreadsheet.a_cell)
# fp.b=str(fp.Spreadsheet.b_cell)
# fp.c=str(fp.Spreadsheet.c_cell)
# dd=0
# k = "d"+str(dd+1)
# new_d = []
# while hasattr(fp.Spreadsheet,k):
# new_d.append(str(getattr(fp.Spreadsheet,k)))
# dd += 1
# k = "d"+str(dd+1)
# fp.d = new_d
# fp.X=str(fp.Spreadsheet.X)
# fp.Y=str(fp.Spreadsheet.Y)
# fp.Z=str(fp.Spreadsheet.Z)
# if hasattr(fp,"t"):
# fp.t = fp.Spreadsheet.t_min
# else:
# fp.t_min = fp.Spreadsheet.t_min
# fp.t_max=fp.Spreadsheet.t_max
# fp.Interval=fp.Spreadsheet.interval
#
# if fp.FormulaName:
# self.bInihibitUpdates=True
# self.updateJSONFormula(fp,fp.FormulaName)
# self.bInihibitUpdates=False
# doc.commitTransaction()
# def onChanged(self, fp, prop):
# '''Do something when a property has changed'''
# doc = FreeCAD.ActiveDocument
# #FreeCAD.Console.PrintMessage("Change property: " + str(prop) + ""+chr(10))
# if prop == "Spreadsheet" and fp.Spreadsheet != None:
# self.updateFromSpreadsheet(fp)
#
# elif prop == "UseSpreadsheet" and fp.UseSpreadsheet == True:
# if not fp.Spreadsheet:
# FreeCAD.Console.PrintError("No spreadsheet linked.\\n Create one with Update Spreadsheet or link existing one first."+chr(10))
# self.setReadOnly(fp, True)
# elif prop == "UseSpreadsheet" and fp.UseSpreadsheet == False:
# self.setReadOnly(fp,False)
# elif prop == "Spreadsheet" and fp.Spreadsheet == None: #user removed link to Spreadsheet
# self.setReadOnly(fp,False)
#
# elif prop == "UpdateSpreadsheet" and fp.UpdateSpreadsheet == True:
# doc.openTransaction("Update to Spreadsheet")
# self.bInhibitRecompute = True
# self.updateToSpreadsheet(fp)
# fp.UpdateSpreadsheet = False
# doc.commitTransaction()
#
# elif prop == "File" and fp.File != None:
# #self.readJSONFile(fp)
# FreeCAD.Console.PrintMessage("File linked.\n\
#Use Read File to import into object.\n\
#Use Append File to append formulas to file.\n\
#Use Write File to overwrite all data in file.\n\
#Use Open File to open file in external editor.\n\
#")
#
# elif prop == "Formulas" and fp.File != None:
# self.bInihibitUpdates = True
# self.updateJSONFormula(fp,fp.Formulas)
# self.bInihibitUpdates = False
# fp.FormulaName = fp.Formulas
#
# elif prop == "WriteFile" and fp.File != None and fp.WriteFile == True:
# self.bInhibitRecompute = True
# self.writeJSONFile(fp)
# fp.WriteFile = False
# elif prop == "RenameFormula" and fp.RenameFormula == True and fp.File != None:
# doc.openTransaction("Rename formula")
# self.bInhibitRecompute = True
# self.renameFormula(fp)
# fp.RenameFormula = False
# doc.commitTransaction()
# elif prop == "NewFormula" and fp.NewFormula == True:
# doc.openTransaction("Create new formula")
# self.bInhibitRecompute = True
# self.newFormula(fp)
# fp.NewFormula = False
# doc.commitTransaction()
# elif prop == "OpenFile" and fp.OpenFile == True:
# fp.OpenFile = False
# self.bInhibitRecompute = True
# sys = platform.system()
# if fp.File:
# if 'Windows' in sys:
# import webbrowser
# webbrowser.open(fp.File)
# elif 'Linux' in sys:
# os.system("xdg-open '%s'" % fp.File)
# elif 'Darwin' in sys:
# subprocess.Popen(["open", fp.File])
# else:
# FreeCAD.Console.PrintError("We were unable to determine your platform, and thus cannot open your file for you."+chr(10))
# elif prop == "Sorted":
# formulas = [key for key in self.JSON_Data.keys()]
# fp.Formulas = sorted(formulas) if fp.Sorted else formulas
# elif prop == "ReadFile" and fp.ReadFile == True:
# fp.ReadFile = False
# doc.openTransaction("Read file")
# if fp.File:
# self.readJSONFile(fp)
# doc.commitTransaction()
# elif prop == "AppendFile" and fp.AppendFile == True:
# fp.AppendFile = False
# self.bInhibitRecompute = True
# self.appendFile(fp)
# elif prop == "DeleteFormula" and fp.DeleteFormula == True:
# doc.openTransaction("Delete formula")
# fp.DeleteFormula = False
# self.deleteFormula(fp)
# doc.commitTransaction()
# elif prop == "a" or prop == "b" or prop == "c" or prop == "d" or prop == "X" or prop == "Y" or prop == "Z" or prop == "t" or prop == "t_min" or prop == "t_max" or prop == "Interval":
# if fp.FormulaName and not self.bInihibitUpdates:
# self.updateJSON_Data(fp,fp.Formulas) #update self.JSON_Data on every property change
# elif prop == "MakeFace" and fp.MakeFace == True:
# self.bInhibitRecompute = True
# if fp.MakeFace and fp.Shape.isClosed():
# try:
# face = Part.makeFace(fp.Shape,"Part::FaceMakerCheese")
# fp.Shape = face
# except:
# pass
# elif prop == "EditFormulas" and fp.EditFormulas == True:
# fp.EditFormulas = False
# t = QtCore.QTimer()
# t.singleShot(50, self.showEditor)
#
# def stripComments(self,string):
# """returns a string with everything after # removed, including #"""
# strip1 = string
# if not "#" in string and not "{" in string and not "}" in string:
# return string
# elif "#" in string:
# idx = string.index("#")
# strip1 = string[:idx]
# if not "{" in strip1 and not "}" in strip1:
# return strip1
# idx2 = strip1.index("{")
# idx3 = strip1.index("}")
# return strip1[:idx2] + strip1[idx3+1:]
#
# def makeCurve(self, fp):
# self.updateFromSpreadsheet(fp)
# vars = {"a":0,"b":0,"c":0,"X":0,"Y":0,"Z":0,"t":0}
#
# fa = self.stripComments(fp.a)
# fb = self.stripComments(fp.b)
# fc = self.stripComments(fp.c)
# fx = self.stripComments(fp.X)
# fy = self.stripComments(fp.Y)
# fz = self.stripComments(fp.Z)
# t = fp.t if hasattr(fp,"t") else fp.t_min
# tf = fp.t_max
# intv = fp.Interval
# if not intv:
# FreeCAD.Console.PrintWarning("ParametricCurve: interval must be non-zero, return null shape.\n")
# return Part.Shape()
# if (tf-t)*intv <= 0:
# FreeCAD.Console.PrintWarning(f"Infinite loop avoided. t_max - t * Interval cannot be less than 0. Interval used will be {intv * -1}\n")
# intv *= -1
# iterations = int((tf-t)/intv)
# matriz = []
# plus1 = 1
# if hasattr(fp,"PlusOneIteration") and fp.PlusOneIteration:
# lastT = t + iterations * intv
# while lastT < tf and not math.isclose(lastT, tf, abs_tol = 1e-9): #don't add if almost equal
# plus1 += 1
# lastT += intv
# else:
# plus1 = 0 # restore old bug for compatibility
# for i in range(iterations + plus1):
# if hasattr(fp,"PlusOneIteration") and fp.PlusOneIteration:
# if i == int(iterations) + plus1 - 1: #last iteration
# t = tf
# try:
# vars["t"] = t
# value="a ->"+str(fa)
# a=evaluate(fa,vars)
# vars["a"]=a
# value="b ->"+str(fb)
# b=evaluate(fb,vars)
# vars["b"] = b
# value="c ->"+str(fc)
# c=evaluate(fc,vars)
# vars["c"]=c
# for dd in range(0,len(fp.d)):#fp.d[0] = d1, fp.d[1] = d2, etc
# k = "d"+str(dd+1)# where dd = 0, k = "d1"
# value = k+" ->"+str(fp.d[dd])
# vars[k] = evaluate(self.stripComments(fp.d[dd]),vars)
# value="X ->"+str(fx)
# fxx=evaluate(fx,vars)
# vars["X"]=fxx
# value="Y ->"+str(fy)
# fyy=evaluate(fy,vars)
# vars["Y"]=fyy
# value="Z ->"+str(fz)
# fzz=evaluate(fz,vars)
# vars["Z"]=fzz
# except ZeroDivisionError:
# FreeCAD.Console.PrintError("Error division by zero in calculus of "+value+"() for t="+str(t)+" !")
# except:
# FreeCAD.Console.PrintError("Error in the formula of "+value+"() !")
#
# matriz.append(FreeCAD.Vector(fxx,fyy,fzz))
# t+=intv
# if not matriz:
# FreeCAD.Console.PrintWarning("ParametricCurve: --vector list is empty, returning null shape\n")
# return Part.Shape()
# if fp.ShapeType == "Polygon" and fp.Closed == True:
# matriz.append(matriz[0])
# fp.Points = matriz
# curva = Part.makePolygon(matriz)
# if fp.ShapeType == "BSpline":
# curve = Part.BSplineCurve()
# curve.interpolate(matriz, PeriodicFlag=fp.Closed)
# return curve.toShape()
# elif fp.ShapeType == "Polygon":
# return curva
# else: #fp.ShapeType == "Points":
# vertices = [Part.Vertex(p) for p in fp.Points]
# comp = Part.Compound(vertices)
# return comp
#
# def execute(self, fp):
# '''Do something when doing a recomputation, this method is mandatory'''
# if self.bInhibitRecompute: #some things do not require a recompute, such as saving to JSON file or updating spreadsheet
# self.bInhibitRecompute = False
# return
#
# fp.Shape = self.makeCurve(fp)
# if hasattr(fp.Shape,"Continuity"):
# fp.Continuity = fp.Shape.Continuity
# else:
# fp.Continuity = "N/A"
# if fp.MakeFace and fp.Shape.isClosed():
# try:
# face = Part.makeFace(fp.Shape,"Part::FaceMakerCheese")
# fp.Shape = face
# except:
# pass
# #FreeCAD.Console.PrintMessage("Recompute Python Curve feature"+chr(10))
# self.updateFloats(fp)
#
# def updateFloat(self, fp, propstr, propfloat):
# try:
# fval = evaluate(self.stripComments(getattr(fp,propstr)))
# setattr(fp,propfloat,fval)
# except Exception:
# setattr(fp,propfloat,0.0)
#
# def updateFloats(self, fp):
# if not hasattr(fp, "F_a"): #do not break existing objects created with earlier versions
# return
# propstrs = ["a","b","c","X","Y","Z"]
# for propstr in propstrs:
# self.updateFloat(fp,propstr,f"F_{propstr}")
# d_vals = [0.0] #dummy first value so we can 1-index into the array
# for dd,val in enumerate(fp.d):
# try:
# d_vals.append(evaluate(self.stripComments(val)))
# except:
# d_vals.append(0.0)
# d_vals = d_vals if not d_vals == [0.0] else []
# setattr(fp, "F_d",d_vals)
#
# def showEditor(self):
# '''show the formula editor'''
# if not hasattr(self,"fpName"):
# FreeCAD.Console.PrintError("Formula editor not available for objects created with older versions.\n")
# return #object made with old version
# fp = FreeCAD.ActiveDocument.getObject(self.fpName)
# if not FreeCADGui.Control.activeDialog():
# editor = TaskEditFormulasPanel(fp)
# FreeCADGui.Control.showDialog(editor)
# self.editingMode = True
# else:
# self.editingMode=False
# FreeCAD.Console.PrintError("Another task dialog is active. Close that one and try again.\n")
# return
#
#
#class TaskEditFormulasPanel: #formula editor
# def __init__(self, fp):
# self.blockSignals = True
# self.fp = fp
# self.sorted = fp.Sorted if hasattr(fp,"Sorted") else False
## self.json = self.shallowCopy(self.fp.Proxy.JSON_Data)
# self.clipboard = QtGui.QApplication.clipboard()
# self.form = QtGui.QWidget()
# self.form.setObjectName("formulaEditor")
# self.form.editor = self #used by context menu handler
# layout=QtGui.QVBoxLayout()
# layout.setObjectName("layout")
# commandBox = QtGui.QHBoxLayout()
# commandBox.setObjectName("commandBox")
# self.formulaList = QtGui.QListWidget()
# commandBox.addWidget(self.formulaList)
# self.formulaList.currentItemChanged.connect(self.formulaListCurrentItemChanged)
#
# #layout is a vbox, the entire layout of the Edit Formulas panel, beneath the standard buttons
# #commandBox is a hbox containing the formula list and topButtonBox
# #topButtonBox is a vbox containing buttons related to top level commands
# #hBoxBottom is similar to commandBox, hbox containing various line edits and
# #bottomButtonBox, a vbox containing buttons related commands for the line edits
#
# formulasLabel = QtGui.QLabel("Formulas in editor memory:")
# layout.addWidget(formulasLabel)
#
# layout.addLayout(commandBox)
# hBoxBottom = QtGui.QHBoxLayout()
# hBoxBottom.setObjectName("hBoxBottom")
# formulaBox = QtGui.QGridLayout()
# formulaBox.setObjectName("formulaBox")
# hBoxBottom.addLayout(formulaBox)
# bottomButtonBox = QtGui.QVBoxLayout()
# bottomButtonBox.setObjectName("bottomButtonBox")
# hBoxBottom.addLayout(bottomButtonBox)
# divider = QtGui.QLabel("Current formula:")
# layout.addWidget(divider)
# layout.addLayout (hBoxBottom)
# topButtonBox = QtGui.QVBoxLayout()
# topButtonBox.setObjectName("topButtonBox")
# commandBox.addLayout(topButtonBox)
#
# self.form.setLayout(layout)
#
# self.checkBoxSorted = QtGui.QCheckBox("Sorted")
# self.checkBoxSorted.setLayoutDirection(QtCore.Qt.LeftToRight)
# self.checkBoxSorted.setToolTip ("Sort formulas")
# self.checkBoxSorted.clicked.connect(self.checkBoxSortedClicked)
# self.checkBoxSorted.setChecked(self.sorted)
# topButtonBox.addWidget(self.checkBoxSorted)
#
# buttonPlus = QtGui.QPushButton("+")
# buttonPlus.setToolTip ("Add new formula, a copy of selected formula")
# topButtonBox.addWidget(buttonPlus)
# buttonPlus.clicked.connect(self.buttonPlusClicked)
#
# buttonMinus = QtGui.QPushButton("-")
# buttonMinus.setToolTip("Delete formula")
# topButtonBox.addWidget(buttonMinus)
# buttonMinus.clicked.connect(self.buttonMinusClicked)
#
# buttonImport = QtGui.QPushButton("Import")
# buttonImport.setToolTip ("Import one or more formulas from a JSON file\n\
#Does not overwrite existing memory contents\n")
# topButtonBox.addWidget(buttonImport)
# buttonImport.clicked.connect(self.buttonImportClicked)
#
# buttonCopy = QtGui.QPushButton("Copy")
# buttonCopy.setToolTip ("Copy formula to clipboard")
# bottomButtonBox.addWidget(buttonCopy)
# buttonCopy.clicked.connect(self.buttonCopyClicked)
#
# buttonPaste = QtGui.QPushButton("Paste")
# buttonPaste.setToolTip("Paste formula from clipboard")
# bottomButtonBox.addWidget(buttonPaste)
# buttonPaste.clicked.connect(self.buttonPasteClicked)
#
# buttonRename = QtGui.QPushButton("Rename")
# buttonRename.setToolTip ("Rename formula")
# bottomButtonBox.addWidget(buttonRename)