Macro FCSpring On Surface

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FCSpring On Surface.png Macro FCSpring On Surface

Description
This macro creates a helix (or spring) around a solid object whatever its shape, the helix follows the entire surface of the object (Python2 is request)
Download the toolBar icon

Macro version: 00.00
Last modified: 2019/12/20
FreeCAD version: 0.18 and above
Download: ToolBar icon the Icons
Author
Mario52
Download
ToolBar icon the Icons
Links
Macro Version
00.00
Date last modified
2019/12/20
FreeCAD Version(s)
0.18 and above
Default shortcut
None
See also
Macro FCSpring Helix Variable FCSpring Helix Variable.png


Description

This macro creates a helix around a solid object whatever its shape, the helix follows the entire surface of the object. (Python2 is request)


FCSpring On Surface 00.png

Usage

Select the object (solid), the macro calculate by default value:

  • The height value of the BoundBox of the object the X BounBox axis the Y value of the BoundBox axis Z the base of the object.

FCSpring On Surface 02.png

Configuration:

  • Pas : The pitch of the helix (Default: 1)
  • Height : The height of the helix. By default the height is the maximum height of the boundBox of the object.
  • Precision : Number of points for one turn of the object, maximum 360 (Default: 36)

Coordinate Begin:

  • X : The value X. If the object is offset, the X BoundBox center axis value is detected and used by default.
  • Y : The value Y. If the object is offset, the Y BoundBox center axis value is detected and used by default.
  • Z : The value Z. If the object is offset, the Y BoundBox center axis value is detected and used by default.

Options:

  • BSpline : One helix Bspline is created
  • Wire : One helix Wire is created
  • Points : One point is created in all coordinate created for built the Bspline or Wire
  • Reverse : The helix is reversed (Default: counterclockwise)
  • If is checked you must dee the progression in the 3D view

Command:

  • Quit : Quit FCSpring_On_Surface
  • Ok : Run the creation

Script

FCSpring On Surface.png ToolBar icon]

Macro_FCSpring_On_Surface.FCMacro

# -*- coding: utf-8 -*-
#from __future__ import unicode_literals
#
"""
***************************************************************************
*   Copyright (c)  2019 <mario52>                                         *
*                                                                         *
*   This file is a supplement to the FreeCAD CAx development system.      *
*                                                                         *
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU Lesser General Public License (LGPL)    *
*   as published by the Free Software Foundation; either version 2 of     *
*   the License, or (at your option) any later version.                   *
*   for detail see the LICENCE text file.                                 *
**                                                                       **
*   Use at your own risk. The author assumes no liability for data loss.  *
*              It is advised to backup your data frequently.              *
*             If you do not trust the software do not use it.             *
**                                                                       **
*   This software 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 Library General Public License for more details.                  *
*                                                                         *
*   You should have received a copy of the GNU Library General Public     *
*   License along with this macro; if not, write to the Free Software     *
*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
*   USA                                                                   *
***************************************************************************
*           WARNING! All changes in this file will be lost and            *  
*                  may cause malfunction of the program                   *
***************************************************************************
"""
#Macro_FCSpring On Surface 20/12/2019 /_00
#
#OS: Windows 10 (10.0)
#Word size of OS: 64-bit
#Word size of FreeCAD: 64-bit
#Version: 0.19.18848 (Git)
#Build type: Release
#Branch: master
#Hash: 50f4c012b4d45a4d34055f0be1a48de6e293c9a8
#Python version: 3.6.8
#Qt version: 5.12.1
#Coin version: 4.0.0a
#OCC version: 7.3.0
#
__title__   = "FCSpring On Surface"
__author__  = "Mario52"
__url__     = "http://www.freecadweb.org/index-fr.html"
__Wiki__    = "http://www.freecadweb.org/wiki/index.php?title=FCSpring_On_Surface"
__version__ = "00.00"
__date__    = "20/12/2019"

#original code by wandererfan
#How to intersect a line with a part
#http://www.forum.freecadweb.org/viewtopic.php?f=22&t=5456

import PySide2
from PySide2 import QtGui ,QtCore, QtWidgets
from PySide2.QtGui import *
from PySide2.QtCore import *

import time
import math
from math import sqrt, pi, sin, cos, asin
import Draft, Part, FreeCADGui, FreeCAD
from FreeCAD import Base

Gui = FreeCADGui
App = FreeCAD

global ui         ; ui         = ""
global lineLength ; lineLength = 0.0  # longueur de la ligne
global noPass     ; noPass     = 1    # switch observer
global detectFace ; detectFace = 0
global sel        ; sel        = ""
global objet      ; objet      = ""

####chrono################
import time
global depart ; depart  = 0.0
global arrivee; arrivee = 0.0
def chrono(sec):    # 0=depart autre=stop
#time.strftime('%X %x %Z')#'15:44:07 12/14/19 Paris, Madrid'
    global depart
    global arrivee
    if sec == 0:
        depart = time.time()#time.clock()
        App.Console.PrintMessage("Chrono begin   : "+str(time.strftime('%X'))+"\n")
    else:
        arrivee = time.time()#time.clock()
        App.Console.PrintMessage("Chrono end     : "+str(time.strftime('%X'))+"\n")
        parcouru = ((arrivee - depart)/60.0)
        App.Console.PrintError("Time execution : "+str("%.3f" % parcouru)+" min"+"\n")
#    FreeCADGui.updateGui()    
####chrono################

class Ui_MainWindow(object):

    def __init__(self ):
        self.window = MainWindow
        #self.path  = FreeCAD.ConfigGet("AppHomePath")
        #self.path  = FreeCAD.ConfigGet("UserAppData")
        #self.path  = "your path"
#        param = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Macro")# macro path
#        self.path = param.GetString("MacroPath","") + "/"                   # macro path
#        self.path = self.path.replace("\\","/")
#        print("Path for the icons : " , self.path)

        self.Pas        = 1.0
        self.Hauteur    = 0.0
        self.Precision  = 36
        self.steps      = (360.0 / self.Precision)
        self.longueurFil= 0.0
        self.coor_X     = 0.0
        self.coor_Y     = 0.0
        self.coor_Z     = 0.0

        self.PointSize     = 8    #heigth text

    def setupUi(self, MainWindow):
        self.window = MainWindow

        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(251, 455)
#        MainWindow.move(1150, 100)                # position window

        self.label_00_Title = QtWidgets.QLabel(MainWindow)
        self.label_00_Title.setGeometry(QtCore.QRect(20, 5, 226, 16))
        self.label_00_Title.setObjectName("label_00_Title")

        ####
        self.GB_00_Configuration = QtWidgets.QGroupBox(MainWindow)
        self.GB_00_Configuration.setGeometry(QtCore.QRect(15, 25, 186, 126))
        self.GB_00_Configuration.setObjectName("GB_00_Configuration")

        self.DS_GB_00_01_Pas = QtWidgets.QDoubleSpinBox(self.GB_00_Configuration)
        self.DS_GB_00_01_Pas.setGeometry(QtCore.QRect(15, 20, 86, 22))
        self.DS_GB_00_01_Pas.setObjectName("DS_GB_00_01_Pas")
        self.DS_GB_00_01_Pas.setMaximum(999999)
        self.DS_GB_00_01_Pas.setValue(self.Pas)
        self.DS_GB_00_01_Pas.setDecimals(4)
        self.DS_GB_00_01_Pas.setToolTip("The screw pitch (default = 1)")
        self.DS_GB_00_01_Pas.valueChanged.connect(self.on_DS_GB_00_01_Pas)

        self.Label_GB_00_01_Pas = QtWidgets.QLabel(self.GB_00_Configuration)
        self.Label_GB_00_01_Pas.setGeometry(QtCore.QRect(115, 25, 66, 16))
        self.Label_GB_00_01_Pas.setObjectName("Label_GB_00_01_Pas")

        self.DS_GB_00_02_Hauteur = QtWidgets.QDoubleSpinBox(self.GB_00_Configuration)
        self.DS_GB_00_02_Hauteur.setGeometry(QtCore.QRect(15, 55, 86, 22))
        self.DS_GB_00_02_Hauteur.setObjectName("DS_GB_00_02_Hauteur")
#        self.DS_GB_00_02_Hauteur.setValue()
        self.DS_GB_00_02_Hauteur.setMaximum(999999)
        self.DS_GB_00_02_Hauteur.setDecimals(4)
        self.DS_GB_00_02_Hauteur.setToolTip("The height of the shape" + "\n"
                                            "the default height is calculte" + "\n"
                                            "by the max height of the BoundBox")
        self.DS_GB_00_02_Hauteur.valueChanged.connect(self.on_DS_GB_00_02_Hauteur)

        self.label_GB_00_02_Hauteur = QtWidgets.QLabel(self.GB_00_Configuration)
        self.label_GB_00_02_Hauteur.setGeometry(QtCore.QRect(115, 60, 66, 16))
        self.label_GB_00_02_Hauteur.setObjectName("label_GB_00_02_Hauteur")

        self.SP_GB_00_03_Precision = QtWidgets.QSpinBox(self.GB_00_Configuration)
        self.SP_GB_00_03_Precision.setGeometry(QtCore.QRect(15, 90, 86, 22))
        self.SP_GB_00_03_Precision.setObjectName("DS_GB_00_03_Precision")
        self.SP_GB_00_03_Precision.setValue(self.Precision)
        self.SP_GB_00_03_Precision.setMaximum(360)
        self.SP_GB_00_03_Precision.setMinimum(1)
        self.SP_GB_00_03_Precision.setToolTip("The number of points for one turn" + "\n"
                                              "(default = " + str(self.Precision) + ")")
        self.SP_GB_00_03_Precision.valueChanged.connect(self.on_SP_GB_00_03_Precision)

        self.label_GB_00_02_Precision = QtWidgets.QLabel(self.GB_00_Configuration)
        self.label_GB_00_02_Precision.setGeometry(QtCore.QRect(115, 95, 66, 16))
        self.label_GB_00_02_Precision.setObjectName("label_GB_00_02_Precision")

        ####
        self.GB_01_Coordinate = QtWidgets.QGroupBox(MainWindow)
        self.GB_01_Coordinate.setGeometry(QtCore.QRect(15, 160, 186, 131))
        self.GB_01_Coordinate.setObjectName("GB_01_Coordinate")

        self.DP_01_01_X = QtWidgets.QDoubleSpinBox(self.GB_01_Coordinate)
        self.DP_01_01_X.setGeometry(QtCore.QRect(15, 25, 86, 22))
        self.DP_01_01_X.setObjectName("SP_01_01_X")
        self.DP_01_01_X.setMaximum(999999)
        self.DP_01_01_X.setMinimum(-999999)
        self.DP_01_01_X.setDecimals(4)
        self.DP_01_01_X.setToolTip("The X value of the coordinate" + "\n"
                                   "the default value is calculed" + "\n"
                                   "by the X center BoundBox") 
        self.DP_01_01_X.valueChanged.connect(self.on_DP_01_01_X)

        self.DP_01_02_Y = QtWidgets.QDoubleSpinBox(self.GB_01_Coordinate)
        self.DP_01_02_Y.setGeometry(QtCore.QRect(15, 60, 86, 22))
        self.DP_01_02_Y.setObjectName("SP_01_01_Y")
        self.DP_01_02_Y.setMaximum(999999)
        self.DP_01_02_Y.setMinimum(-999999)
        self.DP_01_02_Y.setDecimals(4)
        self.DP_01_02_Y.setToolTip("The Y value of the coordinate" + "\n"
                                   "the default value is calculed" + "\n"
                                   "by the Y center BoundBox") 
        self.DP_01_02_Y.valueChanged.connect(self.on_DP_01_02_Y)

        self.DP_01_03_Z = QtWidgets.QDoubleSpinBox(self.GB_01_Coordinate)
        self.DP_01_03_Z.setGeometry(QtCore.QRect(15, 95, 86, 22))
        self.DP_01_03_Z.setObjectName("SP_01_01_Z")
        self.DP_01_03_Z.setMaximum(999999)
        self.DP_01_03_Z.setMinimum(-999999)
        self.DP_01_03_Z.setDecimals(4)
        self.DP_01_03_Z.setToolTip("The Z value of the coordinate" + "\n"
                                   "the default value is calculed" + "\n"
                                   "by the Z BoundBox minimum value") 
        self.DP_01_03_Z.valueChanged.connect(self.on_DP_01_03_Z)

        self.Label_GB_01_01_X = QtWidgets.QLabel(self.GB_01_Coordinate)
        self.Label_GB_01_01_X.setGeometry(QtCore.QRect(115, 30, 66, 13))
        self.Label_GB_01_01_X.setObjectName("Label_GB_01_01_X")

        self.Label_GB_01_02_Y = QtWidgets.QLabel(self.GB_01_Coordinate)
        self.Label_GB_01_02_Y.setGeometry(QtCore.QRect(115, 65, 66, 13))
        self.Label_GB_01_02_Y.setObjectName("Label_GB_01_02_Y")

        self.Label_GB_01_03_Z = QtWidgets.QLabel(self.GB_01_Coordinate)
        self.Label_GB_01_03_Z.setGeometry(QtCore.QRect(115, 100, 66, 13))
        self.Label_GB_01_03_Z.setObjectName("Label_GB_01_03_Z")

        ####
        self.GB_03_Options = QtWidgets.QGroupBox(MainWindow)
        self.GB_03_Options.setGeometry(QtCore.QRect(15, 300, 186, 71))
        self.GB_03_Options.setObjectName("GB_03_Options")

        self.RB_03_00_BSpline = QtWidgets.QRadioButton(self.GB_03_Options)
        self.RB_03_00_BSpline.setGeometry(QtCore.QRect(10, 20, 71, 18))
        self.RB_03_00_BSpline.setChecked(True)
        self.RB_03_00_BSpline.setToolTip("BSpline")
        self.RB_03_00_BSpline.setObjectName("RB_03_00_BSpline")

        self.RB_03_01_Wire = QtWidgets.QRadioButton(self.GB_03_Options)
        self.RB_03_01_Wire.setGeometry(QtCore.QRect(100, 20, 71, 18))
        self.RB_03_01_Wire.setToolTip("Wire")
        self.RB_03_01_Wire.setObjectName("RB_03_01_Wire")

        self.CB_03_00_Points = QtWidgets.QCheckBox(self.GB_03_Options)
        self.CB_03_00_Points.setGeometry(QtCore.QRect(10, 45, 71, 18))
        self.CB_03_00_Points.setToolTip("Create one Points in all coordinates")
        self.CB_03_00_Points.setObjectName("CB_03_00_Points")

        self.CB_03_01_Reverse = QtWidgets.QCheckBox(self.GB_03_Options)
        self.CB_03_01_Reverse.setGeometry(QtCore.QRect(100, 45, 71, 18))
        self.CB_03_01_Reverse.setToolTip("Reverse the direction" + "\n"
                                         "Default = counter clockwise")
        self.CB_03_01_Reverse.setObjectName("CB_03_01_Reverse")

        self.CB_03_02_Update = QtWidgets.QCheckBox(self.GB_03_Options)
        self.CB_03_02_Update.setGeometry(QtCore.QRect(170, 45, 18, 18))
        self.CB_03_02_Update.setObjectName("CB_03_02_Update")
        self.CB_03_02_Update.setToolTip("Display the progress of the operation in the 3D view")

        ####
        self.GB_02_Command = QtWidgets.QGroupBox(MainWindow)
        self.GB_02_Command.setGeometry(QtCore.QRect(15, 380, 186, 61))
        self.GB_02_Command.setObjectName("GB_02_Command")

        self.PB_02_01_Ok = QtWidgets.QPushButton(self.GB_02_Command)
        self.PB_02_01_Ok.setGeometry(QtCore.QRect(100, 25, 75, 23))
        self.PB_02_01_Ok.setObjectName("GB_02_01_Ok")
        self.PB_02_01_Ok.setToolTip("Button Ok" + "\n"
                                    "If on error is created" + "\n"
                                    "the button is coloured in red" + "\n"
                                    "if not the button is coloured in green")
        self.PB_02_01_Ok.clicked.connect(self.on_PB_02_01_Ok)

        self.PB_02_02_Quit = QtWidgets.QPushButton(self.GB_02_Command)
        self.PB_02_02_Quit.setGeometry(QtCore.QRect(10, 25, 75, 23))
        self.PB_02_02_Quit.setObjectName("GB_02_01_Quit")
        self.PB_02_02_Quit.setToolTip("Quit FCSpring On Surface")
        self.PB_02_02_Quit.clicked.connect(self.on_PB_Quit_clicked)

#        section progressBar 1 Green
        self.progressBar_1_Green = QtWidgets.QProgressBar(MainWindow)
        self.progressBar_1_Green.setGeometry(QtCore.QRect(210, 30, 30, 411))
        self.progressBar_1_Green.setValue(0)
        self.progressBar_1_Green.setOrientation(QtCore.Qt.Vertical)
        self.progressBar_1_Green.setAlignment(QtCore.Qt.AlignCenter)
        self.progressBar_1_Green.setObjectName("progressBar_1_Green")
        self.progressBar_1_Green.setToolTip("If the coordinate is erroneous the progressBar is coloured in red")
        self.progressBar_1_Green.setStyleSheet("QProgressBar {color:black; }"
                                               "QProgressBar:chunk {background-color: #00FF00;}") # modify the progressBar color 

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        MainWindow.setWindowFlags(PySide2.QtCore.Qt.WindowStaysOnTopHint)        # PySide2 cette fonction met la fenetre en avant

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(__title__+" ("+__version__+", "+__date__+")")
        self.label_00_Title.setText(__title__+" ("+__version__+", "+__date__+")")

        self.GB_00_Configuration.setTitle("Configuration")
        self.Label_GB_00_01_Pas.setText("Pas")
        self.label_GB_00_02_Hauteur.setText("Heigth")
        self.label_GB_00_02_Precision.setText("Precision")

        self.GB_01_Coordinate.setTitle("Coordinate Begin")
        self.Label_GB_01_01_X.setText("X")
        self.Label_GB_01_02_Y.setText("Y")
        self.Label_GB_01_03_Z.setText("Z")

        self.GB_03_Options.setTitle("Options")
        self.RB_03_00_BSpline.setText("BSpline")
        self.RB_03_01_Wire.setText("Wire")
        self.CB_03_00_Points.setText("Points")
        self.CB_03_01_Reverse.setText("Reverse")

        self.GB_02_Command.setTitle("Options")
        self.GB_02_Command.setTitle("Command")
        self.PB_02_01_Ok.setText("Ok")
        self.PB_02_02_Quit.setText("Quit")

    def on_DS_GB_00_01_Pas(self, value):
        self.Pas = value
        self.DS_GB_00_01_Pas.setStyleSheet("background-color: QPalette.Base")

    def on_DS_GB_00_02_Hauteur(self, value):
        self.Hauteur = value
        self.DS_GB_00_02_Hauteur.setStyleSheet("background-color: QPalette.Base")

    def on_SP_GB_00_03_Precision(self, value):
        self.Precision = value
        self.steps = (360.0 / self.Precision)
        self.SP_GB_00_03_Precision.setStyleSheet("background-color: QPalette.Base")

    def on_DP_01_01_X(self, value):
        self.coor_X = value

    def on_DP_01_02_Y(self, value):
        self.coor_Y = value

    def on_DP_01_03_Z(self, value):
        self.coor_Z = value

    def on_PB_02_01_Ok(self):
        global lineLength
        global noPass
        global sel
        global depart
        global arrivee
        global detectFace
        global objet

        try:
            if (self.Pas != 0) and (self.Hauteur != 0) and (self.Precision != 0) and (detectFace == 1):
                chrono(0)
                noPass     = 0    # switch 0=nopass
                #sel = FreeCADGui.Selection.getSelection()
                objetName  = sel[0].Name
                objetLabel = sel[0].Label
                objet      = sel[0].Shape
                z          = 0.0
                compteur   = 0

                lineDirectrice = Draft.makeWire([FreeCAD.Vector(0.0, 0.0, 0.0),FreeCAD.Vector(lineLength , 0.0, 0.0)])
                #print(lineDirectrice.Name)
                if self.CB_03_02_Update.isChecked():
                    FreeCADGui.ActiveDocument.getObject(lineDirectrice.Name).Visibility = True
                else:                    
                    FreeCADGui.ActiveDocument.getObject(lineDirectrice.Name).Visibility = False

                App.ActiveDocument.recompute()

                pl=FreeCAD.Placement()
                points = []
        
                self.progressBar_1_Green.setValue(0)
                progressMax = (self.Precision * int(self.Hauteur / self.Pas) + 1)
                self.progressBar_1_Green.setMaximum(progressMax)
                
                for sp in range(int(self.Hauteur / self.Pas) + 1):    #nombre de tours
                    for i in range(0, (360*1000), int(self.steps*1000)):                       #
                        if self.CB_03_01_Reverse.isChecked():
                            i = -float(i/1000)                ##Reverse
                        else:
                            i = float(i/1000)                 ##Normal

                        compteur += 1

                        pl=App.Placement(App.Vector(self.coor_X, self.coor_Y, z + self.coor_Z), App.Rotation(i,0.0,0.0), App.Vector(0,0,0))
                        lineDirectrice.Placement = pl
                        z += (self.Pas / self.Precision)
                
                        if z > self.Hauteur:
                            break
                
                        line   = lineDirectrice.Shape
                        intersection = objet.common(line)    # only for solid object not for face
                    
                        try:
                            coorIntersec = intersection.Vertexes[1].Point
                            points += [FreeCAD.Vector(coorIntersec[0],coorIntersec[1],coorIntersec[2])]
                            if self.CB_03_00_Points.isChecked():
                                Draft.makePoint(coorIntersec[0],coorIntersec[1],coorIntersec[2])
                        except Exception:
                            self.progressBar_1_Green.setStyleSheet("QProgressBar {color:black; }"
                                                "QProgressBar:chunk {background-color: #FF0000;}") # modify the progressBar color 
                            self.progressBar_1_Green.setValue(progressMax)

                        ####progressBar
                        self.progressBar_1_Green.setStyleSheet("QProgressBar {color:black; }"
                                              "QProgressBar:chunk {background-color: green;}")     # modify the progressBar color 
                        self.progressBar_1_Green.setValue(compteur)
                        ####progressBar
        
                        if self.CB_03_02_Update.isChecked():
                            Gui.updateGui()
                            App.ActiveDocument.recompute()
                
                try:
                    App.ActiveDocument.removeObject(lineDirectrice.Name)
                except Exception:
                    None

                if len(points) != 0:
                    ##Bspline
                    if self.RB_03_00_BSpline.isChecked():
                        BSpline = Draft.makeBSpline(points,closed=False)
                        #BSpline.Label = objetLabel + "_BSpline"
                        App.ActiveDocument.ActiveObject.Label = objetLabel + "_BSpline"
                        #self.longueurFil =
                    ##Wire
                    if self.RB_03_01_Wire.isChecked():
                        Wire = Draft.makeWire(points,closed=False)
                        #Wire.Label = objetLabel + "_Wire"
                        App.ActiveDocument.ActiveObject.Label = objetLabel + "_Wire"
                        #self.longueurFil = 
                    self.PB_02_01_Ok.setStyleSheet("background-color: green;\n"
                                                   "border:2px solid rgb( 0, 115,0);")
                else:
                    self.PB_02_01_Ok.setText("K-O")
                    self.PB_02_01_Ok.setStyleSheet("background-color: red;\n"
                                                   "border:2px solid rgb(115, 0, 0);")

            else:
                self.PB_02_01_Ok.setStyleSheet("background-color: red;\n"
                                               "border:2px solid rgb(115, 0, 0);")
                if (self.Pas == 0):
                    self.DS_GB_00_01_Pas.setStyleSheet("border:2px solid rgb(115, 0, 0);")
                if (self.Hauteur == 0):
                    self.DS_GB_00_02_Hauteur.setStyleSheet("border:2px solid rgb(115, 0, 0);")
                if (self.Precision == 0):
                    self.SP_GB_00_03_Precision.setStyleSheet("border:2px solid rgb(115, 0, 0);")
                
            FreeCAD.Console.PrintMessage("Pas        : " + str(self.Pas) + "\n")
            FreeCAD.Console.PrintMessage("Hauteur    : " + str(self.Hauteur) + "\n")
            FreeCAD.Console.PrintMessage("Precision  : " + str(self.Precision) + "\n")
            FreeCAD.Console.PrintMessage("Coordinate : " + str(len(points)) + "\n")
            #FreeCAD.Console.PrintMessage("Length     : " + str(self.longueurFil) + "\n")
            FreeCAD.Console.PrintMessage("coor_X     : " + str(self.coor_X) + "\n")
            FreeCAD.Console.PrintMessage("coor_Y     : " + str(self.coor_Y) + "\n")
            FreeCAD.Console.PrintMessage("coor_Z     : " + str(self.coor_Z) + "\n")
            chrono(1)
            FreeCAD.Console.PrintMessage("______________________" + "\n")
            points = []

        except Exception:
            self.PB_02_01_Ok.setStyleSheet("background-color: red;\n"
                                           "border:2px solid rgb(115, 0, 0);")

        App.ActiveDocument.recompute()
        noPass = 1    # switch 1 = pass

        ####################################################################
        
    def on_PB_Quit_clicked(self):
        FreeCADGui.Selection.removeObserver(s)   # Uninstalls resident function (desactivated for read after LeftDock RightDock)
        self.window.hide()                       # hide the window and close the macro
        FreeCAD.Console.PrintMessage("Quit " + __title__ + "\n\n")

##############################################################################
class SelObserver:
    def addSelection(self,document, object, element, position):  # Selection
        global ui
        global lineLength
        global noPass
        global sel
        global detectFace
        global objet

        sel = ""
        ui.progressBar_1_Green.setValue(0)
        ui.PB_02_01_Ok.setStyleSheet("background-color: QPalette.Base") # origin system
        ui.PB_02_01_Ok.setText("Ok")
        ui.DS_GB_00_01_Pas.setStyleSheet("background-color: QPalette.Base")
        ui.DS_GB_00_02_Hauteur.setStyleSheet("background-color: QPalette.Base")
        ui.SP_GB_00_03_Precision.setStyleSheet("background-color: QPalette.Base")
        ui.Label_GB_01_01_X.setText("X")
        ui.Label_GB_01_02_Y.setText("Y")
        ui.Label_GB_01_03_Z.setText("Z")

        detectFace = 0

        if (noPass == 1):
            try:
                selEx = FreeCADGui.Selection.getSelectionEx()
                if (noPass == 1) and (hasattr(selEx[0].SubObjects[0],"Surface")):
                    detectFace = 1
    
                    ui.DP_01_01_X.setValue(0.0)
                    ui.DP_01_02_Y.setValue(0.0)
                    ui.DP_01_03_Z.setValue(0.0)
        
                    sel = FreeCADGui.Selection.getSelection()
        
                    boundBoxLZ   = sel[0].Shape.BoundBox.ZLength         # Length z boundBox rectangle
                    ####
                    boundBoxLL   = sel[0].Shape.BoundBox.DiagonalLength  # Length Diagonal rectangle
                    ####
                    boundBoxZMin = sel[0].Shape.BoundBox.ZMin            # coordonate ZMin
                    ui.Label_GB_01_03_Z.setText("Z ("+str(round(boundBoxZMin,4))+")")
                    ####
                    boundBoxCenter = sel[0].Shape.BoundBox.Center        # boundBox Center
                    ####
        
                    ui.Label_GB_01_01_X.setText("X BBCenter")
                    ui.Label_GB_01_02_Y.setText("Y BBCenter")
                    ui.Label_GB_01_03_Z.setText("Z Lowermost")
        
                    ui.DP_01_01_X.setValue(boundBoxCenter[0])   # BBcenter X
                    ui.DP_01_02_Y.setValue(boundBoxCenter[1])   # BBcenter Y
                    ui.DP_01_03_Z.setValue(boundBoxZMin)        # point le plus bas
        
                    self.Hauteur = boundBoxLZ
                    ui.DS_GB_00_02_Hauteur.setValue(self.Hauteur)
                    lineLength = boundBoxLL
            except Exception:
                None
##############################################################################

s=SelObserver()
FreeCADGui.Selection.addObserver(s) # install the function resident mode

MainWindow = QtWidgets.QWidget()    #PySide2
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()


Examples

FCSpring On Surface 01.png


Schraube neu hbc0 bis.png


Schraube neu hbc0.gif


Links

The Genesis Zwei Helix - ein Sweep

The original code How to intersect a line with a part by wandererfan