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Macro CenterFace

{{Macro |Name=Macro CenterFace |Icon=CenterFace.png |Description=This macro red trace (editable) the center face (mass) with 1 point and print the coordinates. |Author=Mario52 |Version=0.2 |Date=2018-10-07 }}

Description

This macro red trace (editable) the center face (mass) with 1 point and print the coordinates.

*CenterFace*

Usage

Select one face and launch the macro. 1 point to face are coloured red (can be changed).

To change the color of the dot change the lines 36, 37, 38

red = 1.0 # 1 = 255

green = 0.0 #

blue = 0.0 #

The center of the face (mass) surface and the XYZ coordinates of the face are displayed in the report view.

Icone

Download the file image and copy in your macro repertory.

Click the image, in the new window position the mouse over the image, click the right mouse and do "Save target as ..."

Button

Script

Macro_CenterFace.FCMacro

{{MacroCode|code=

-- coding: utf-8 --

#OS: Windows Vista #OS: Windows 10 #Platform: 32-bit #Word size of OS: 64-bit #Version: 0.14.3389 #Word size of FreeCAD: 64-bit #Python version: 2.6.2 #Version: 0.17.13528 (Git) #Qt version: 4.5.2 #Build type: Release #Coin version: 3.1.0 #Branch: releases/FreeCAD-0-17 #SoQt version: 1.4.1 #Hash: 5c3f7bf8ec51e2c7187789f7edba71a7aa82a88b #OCC version: 6.5.1 #Python version: 2.7.14 #Qt version: 4.8.7 #Coin version: 4.0.0a #OCC version: 7.2.0

29/04/2014, 07/10/2018

title = "Macro_CenterFace" author = "Mario52" url = "http://www.freecadweb.org/index-fr.html" Wiki = "https://www.freecadweb.org/wiki/Macro_CenterFace" version = "00.02" date = "07/10/2018" Comment = "select a face launch and list the center coordinate XYZ of face"

import FreeCAD, FreeCADGui, Draft, Part

def objectRealPlacement3D(obj): # search the real Placement try: objectPlacement = obj.Shape.Placement objectPlacementBase = FreeCAD.Vector(objectPlacement.Base)

    #### 
    objectWorkCenter     = objectPlacementBase
    ####
    
    if hasattr(obj, "getGlobalPlacement"):
        globalPlacement       = obj.getGlobalPlacement()
        globalPlacementBase   = FreeCAD.Vector(globalPlacement.Base)
        ####
        objectRealPlacement3D = globalPlacementBase.sub(objectWorkCenter)#mode=0 adapte pour BBox + Centerpoints
        ####
    else:
        objectRealPlacement3D = objectWorkCenter
    
    return objectRealPlacement3D
except Exception:
    return FreeCAD.Vector(0.0, 0.0, 0.0)

try: sel = FreeCADGui.Selection.getSelection() # get the selection sh = sel[0] # seletion of the first elementApp.Console.PrintMessage( "Begin________"+"\n") import unicodedata
nameLabel = unicodedata.normalize('NFKD', sh.Label).encode('ascii','ignore') App.Console.PrintMessage("Label : "+ str(nameLabel)+"\n") # extract the Label App.Console.PrintMessage("Name : "+ str(sel[0].Name) +"\n") # extract the Name except: App.Console.PrintError( "Select a face"+"\n")

try: SubElement = FreeCADGui.Selection.getSelectionEx()# "getSelectionEx" Used for selecting subobjects element_ = SubElement[0].SubElementNames[0] # seletion of the first element#print element_ #print sh.Faces # LineColor red = 1.0 # 1 = 255 green = 0.0 # blue = 0.0 #

for i in range(len(sh.Shape.Faces)):                    # list and extract the data

    oripl_X = sh.Shape.Faces[i].CenterOfMass.x
    oripl_Y = sh.Shape.Faces[i].CenterOfMass.y
    oripl_Z = sh.Shape.Faces[i].CenterOfMass.z
    placementOrigine = objectRealPlacement3D( sh )
    oripl_X += placementOrigine[0]
    oripl_Y += placementOrigine[1]
    oripl_Z += placementOrigine[2]

    App.Console.PrintMessage( "Center Face "+str(i)+"    : "+str(sh.Shape.Faces[i].CenterOfMass)+"\n") # Vector center mass to face
    App.Console.PrintMessage( "GlobalPlacement  : "+str(placementOrigine)+"\n") # Vector center mass to face
    Draft.makePoint(oripl_X, oripl_Y, oripl_Z) # create a point
    FreeCADGui.activeDocument().activeObject().PointColor = (red, green, blue)    App.Console.PrintMessage( "       Surface   : "+str(sel[0].Shape.Faces[i-1].Area)+"\n")
    fco = 0
    for f0 in sel[0].Shape.Faces[i].Vertexes:      # Vertexes faces
        fco += 1
        App.Console.PrintMessage("       Vertexe X"+str(fco)+": "+str(f0.Point.x)+" Y"+str(fco)+": "+str(f0.Point.y)+" Z"+str(fco)+": "+str(f0.Point.z)+"\n")

except: App.Console.PrintError( "Select a face *"+"\n") App.Console.PrintMessage( "End__________"+"\n")

}}

Version

ver 0.2 07/10/2018 : upgrade for FC 017 "getGlobalPlacement"

ver 0.1 29/04/2014

documentation index > Macro CenterFace