Macro Airfoil Import & Scale
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|
| Description |
|---|
| This Macro, when run, will first provide the user with a file browser to locate and select a .dat airfoil text file. Once selected, a chord length is entered and upon pressing the OK button, a properly scaled airfoil is produced. There are two versions provided here. Version 1.5 should work on FreeCAD versions, 0.13 stable as well as all 0.14 versions. Version 2 should only be used with FreeCAD versions equal to or greater than 0.14 3077 and will work best with versions built with OCE/OCC versions 6.7 or greater (See the Wiki page for all version disposable). Macro version: 2.1.2 Last modified: 2019-07-16 FreeCAD version: All Download: ToolBar Icon Author: quick61 |
| Author |
| quick61 |
| Download |
| ToolBar Icon |
| Links |
| Macros recipes How to install macros How to customize toolbars |
| Macro Version |
| 2.1.2 |
| Date last modified |
| 2019-07-16 |
| FreeCAD Version(s) |
| All |
| Default shortcut |
| None |
| See also |
| None |
Description
This Macro, when run, will first provide the user with a file browser to locate and select a .dat airfoil text file. Once selected, a chord length is entered and upon pressing the OK button, a properly scaled airfoil is produced. There are two versions provided here. Version 1.5 should work on FreeCAD versions, 0.13 stable as well as all 0.14 versions. Version 2 should only be used with FreeCAD versions equal to or greater than 0.14 3077 and will work best with versions built with OCE/OCC versions 6.7 or greater.
See also Common Airfoil Data Import
How To Use - Version 1.5
Select The File
Running the Macro will first present the user with a file browser that will allow you to select the desired airfoil .dat file. Browse to where you have saved the airfoil file, select it and press Open.
Enter Chord Length
Once the airfoil file has been selected, a new dialog will appear asking for a chord length. Any length may be entered, in millimeters. Once your desired length is entered, the Macro will produce a Draft Wire (DWire) following the points described in the previously selected .dat airfoil file at the scale you entered for the chord length.
The Airfoil, properly scaled, should now be ready for use in your project.
How To Use - Version 2
File selection is the same as version 1.5. With version 2 you now have the choice to either have the resulting airfoil made with a Draft Wire (DWire) or a Basic Spline (BSpline). As with version 1.5, you enter the desired chord length. Additionally you can now select which type of foil you want. Simply click on the BSpline radio button or leave as is for for the default DWire.
The Macros
Latest
The latest version of the macro is to be found at AirfoilImportAndScale.FCMacro but the easiest way to install this macro is through the Addon Manager.
Version 2.1.2
ToolBar icon 
Macro_Airfoil_Import_&_Scale.FCMacro
# This Macro, when run, will first provide the user with a file browser to
# locate and select a .dat airfoil text file. Once selected, a chord length is
# entered and upon pressing the OK button, a properly scaled airfoil is
# produced. There are two versions provided here. Version 1.5 should work on
# FreeCAD versions, 0.13 stable as well as all 0.14 versions. Version 2 should
# only be used with FreeCAD versions equal to or greater than 0.14 3077 and
# will work best with versions built with OCE/OCC versions 6.7 or greater (See
# the Wiki page for all available version).
#
# (c) quick61
__Name__ = 'Airfoil Import and Scale'
__Comment__ = 'Imports and scales an Airfoil in the form of a Draft Wire (DWire) or Basic Spline (BSpline)'
__Author__ = "quick61"
__Version__ = '2.1.2'
__Date__ = '2019-07-16'
__License__ = ''
__Web__ = "http://forum.freecadweb.org/viewtopic.php?f=22&t=5554"
__Wiki__ = "http://www.freecadweb.org/wiki/Macro_Airfoil_Import_%26_Scale"
__Icon__ = 'https://www.freecadweb.org/wiki/images/0/0c/Macro_Airfoil_Import_%26_Scale.png'
__Help__ = ''
__Status__ = 'stable'
__Requires__ = 'Freecad >= 0.14.3706'
__Communication__ = ''
__Files__ = ''
import FreeCAD as app
import PySide
from PySide import QtCore, QtGui
from PySide.QtGui import QLineEdit, QRadioButton
import Draft
import importAirfoilDAT
# Select .dat airfoil data file to be imported
# PySide returns a tuple (filename, filter) instead of just a string like in PyQt
global filename
global nameFile
try:
filename, filefilter = QtGui.QFileDialog.getOpenFileName(QtGui.qApp.activeWindow(), 'Open An Airfoil File', '*.dat')
except Exception:
param = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Macro")# macro path
path = param.GetString("MacroPath","") + "/" # macro path
filename, filefilter = PySide.QtGui.QFileDialog.getOpenFileName(None, "Open An Airfoil File", path, "*.dat")
nameFile = filename.split("/")[-1][:-4]
class AirfoilImporterAndScaler():
def __init__(self):
self.dialog = None
self.s1 = None
# Make dialog box and get the scale size
self.dialog = QtGui.QDialog()
self.dialog.resize(350,100)
self.dialog.setWindowTitle("Airfoil Import & Scale")
la = QtGui.QVBoxLayout(self.dialog)
t1 = QtGui.QLabel("Chord Length")
la.addWidget(t1)
self.s1 = QtGui.QLineEdit()
la.addWidget(self.s1)
# Add radio buttons to select between DWire and BSpline
self.radio1 = QtGui.QRadioButton("Make DWire")
self.radio2 = QtGui.QRadioButton("Make BSpline")
# set default to DWire & make radio buttons - Change self.radio1.setChecked(True) to
# self.radio2.setChecked(True) to set BSpline as default
self.radio1.setChecked(True)
la.addWidget(self.radio1)
la.addWidget(self.radio2)
# Add OK / Cancel buttons
okbox = QtGui.QDialogButtonBox(self.dialog)
okbox.setOrientation(QtCore.Qt.Horizontal)
okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
la.addWidget(okbox)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), self.proceed)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("rejected()"), self.close)
QtCore.QMetaObject.connectSlotsByName(self.dialog)
self.dialog.show()
self.dialog.exec_()
def proceed(self):
global filename
global nameFile
if self.radio1.isChecked():
try:
# This produces a scaled Airfoil with a DWire
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
try:
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
except Exception:
Draft.scale(App.ActiveDocument.ActiveObject,scale=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0.0,0.0,0.0),copy=False)
App.ActiveDocument.ActiveObject.Label = nameFile + "_(DWire)"
except Exception as e:
app.Console.PrintError("Error, not a valid .dat file\n")
if self.radio2.isChecked():
try:
# This produces a scaled Airfoil with a BSpline
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
points = app.ActiveDocument.ActiveObject.Points
App.getDocument("Unnamed").removeObject(App.ActiveDocument.ActiveObject.Name)
Draft.makeBSpline(points, closed=True)
try:
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
except Exception:
for i in range(len(points)):
Draft.scaleVertex(App.ActiveDocument.ActiveObject, i, App.Vector(scalefactor,scalefactor,scalefactor), App.Vector(0.0,0.0,0.0))
App.ActiveDocument.ActiveObject.Label = nameFile + "_(BSpline)"
except:
app.Console.PrintError("Error, not a valid .dat file\n")
try:
# delete the directory created by importAirfoilDAT
for obj in App.ActiveDocument.Objects:
if (obj.TypeId == "App::DocumentObjectGroup") and (obj.Name == nameFile):
App.getDocument("Unnamed").removeObject(nameFile)
except Exception:
None
self.close() # close the window
def close(self):
self.dialog.hide()
AirfoilImporterAndScaler()
Version 1.5
Macro_Airfoil_Import_&_Scale.FCMacro
# # # #
#
# AIRFOIL IMPORT & SCALE v1.5
#
# Imports and scales an Airfoil in the form of a Draft Wire (DWire)
#
# # # #
from PySide import QtCore, QtGui
from PySide.QtGui import QLineEdit
import FreeCAD, FreeCADGui, Draft
import importAirfoilDAT
# Select .dat airfoil data file to be imported
filename = QtGui.QFileDialog.getOpenFileName(QtGui.qApp.activeWindow(),'Open An Airfoil File','*.dat')
class p():
def proceed(self):
try:
# This produces a scaled Airfoil with a DWire
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
except:
FreeCAD.Console.PrintError("Error, not a valid .dat file\n")
self.close()
def close(self):
self.dialog.hide()
def __init__(self):
self.dialog = None
self.s1 = None
# Make dialog box and get the scale size
self.dialog = QtGui.QDialog()
self.dialog.resize(350,100)
self.dialog.setWindowTitle("Airfoil Import & Scale")
la = QtGui.QVBoxLayout(self.dialog)
t1 = QtGui.QLabel("Chord Length")
la.addWidget(t1)
self.s1 = QtGui.QLineEdit()
la.addWidget(self.s1)
# Add OK / Cancel buttons
#ori okbox = QtGui.QDialogButtonBox(self.dialog)
#ori okbox.setOrientation(QtCore.Qt.Horizontal)
#ori okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel -PIPE- QtGui.QDialogButtonBox.Ok)
# modify original code for install with addon-install cause -PIPE- 05-12-2016 FC 0.16
okbox = QtGui.QDialogButtonBox(self.dialog)
okbox.setOrientation(QtCore.Qt.Horizontal)
okbox.setStandardButtons(QtGui.QDialogButtonBox.Ok)
cancelbox = QtGui.QDialogButtonBox(self.dialog)
cancelbox.setOrientation(QtCore.Qt.Horizontal)
cancelbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel)
cancelbox.move(0,62)
la.addWidget(okbox)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), self.proceed)
QtCore.QObject.connect(cancelbox, QtCore.SIGNAL("rejected()"), self.close)
QtCore.QMetaObject.connectSlotsByName(self.dialog)
self.dialog.show()
self.dialog.exec_()
p()
Editing The Default Selection
If you primarily wish to have your imported and scaled airfoils made with BSplines rather than DWires, the Marco may be edited to default to the Bspline. This is done by editing the line -
##exampleCode## self.radio1.setChecked(True)
- and changing it to -
##exampleCode## self.radio2.setChecked(True)
A note on this is included within the text of the macro.
Version 2
Warning - Using this Macro with versions of FreeCAD lesser than 0.14, revision 3077 will not produce the expected results when using the BSpline option and can result in FreeCAD crashing and loss of unsaved data!
# # # #
#
# AIRFOIL IMPORT & SCALE v2.
#
# Imports and scales an Airfoil in the form of a Draft Wire (DWire) or Basic Spline (BSpline)
#
# For FreeCAD Versions = or > 0.14 Revision 3077
#
# Works best with OCC/OCE = or > 6.7
#
# # # #
from PySide import QtCore, QtGui
from PySide.QtGui import QLineEdit, QRadioButton
import FreeCAD, FreeCADGui, Draft
import importAirfoilDAT
# Select .dat airfoil data file to be imported
filename = QtGui.QFileDialog.getOpenFileName(QtGui.qApp.activeWindow(),'Open An Airfoil File','*.dat')
class p():
def proceed(self):
if self.radio1.isChecked():
try:
# This produces a scaled Airfoil with a DWire
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
except:
FreeCAD.Console.PrintError("Error, not a valid .dat file\n")
self.close()
if self.radio2.isChecked():
try:
# This produces a scaled Airfoil with a BSpline
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
points = FreeCAD.ActiveDocument.ActiveObject.Points
Draft.makeBSpline(points, closed=True)
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
App.getDocument("Unnamed").removeObject("DWire")
except:
FreeCAD.Console.PrintError("Error, not a valid .dat file\n")
self.close()
def close(self):
self.dialog.hide()
def __init__(self):
self.dialog = None
self.s1 = None
# Make dialog box and get the scale size
self.dialog = QtGui.QDialog()
self.dialog.resize(350,100)
self.dialog.setWindowTitle("Airfoil Import & Scale")
la = QtGui.QVBoxLayout(self.dialog)
t1 = QtGui.QLabel("Chord Length")
la.addWidget(t1)
self.s1 = QtGui.QLineEdit()
la.addWidget(self.s1)
# Add radio buttons to select between DWire and BSpline
self.radio1 = QRadioButton("Make DWire")
self.radio2 = QRadioButton("Make BSpline")
# set default to DWire & make radio buttons - Change self.radio1.setChecked(True) to
# self.radio2.setChecked(True) to set BSpline as default
self.radio1.setChecked(True)
la.addWidget(self.radio1)
la.addWidget(self.radio2)
# Add OK / Cancel buttons
okbox = QtGui.QDialogButtonBox(self.dialog)
okbox.setOrientation(QtCore.Qt.Horizontal)
okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
la.addWidget(okbox)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), self.proceed)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("rejected()"), self.close)
QtCore.QMetaObject.connectSlotsByName(self.dialog)
self.dialog.show()
self.dialog.exec_()
p()
Version 2.1
Updated by mangtronix to use PySide instead of PyQt (used in older versions of FreeCAD)
# # # #
#
# AIRFOIL IMPORT & SCALE v2.1
#
# Imports and scales an Airfoil in the form of a Draft Wire (DWire) or Basic Spline (BSpline)
#
# For FreeCAD Versions = or > 0.14 Revision 3703
#
# Works best with OCC/OCE = or > 6.7
#
# # # #
from PySide import QtCore, QtGui
from PySide.QtGui import QLineEdit, QRadioButton
import FreeCAD, FreeCADGui, Draft
import importAirfoilDAT
# Select .dat airfoil data file to be imported
# PySide returns a tuple (filename, filter) instead of just a string like in PyQt
filename, filefilter = QtGui.QFileDialog.getOpenFileName(QtGui.qApp.activeWindow(),'Open An Airfoil File','*.dat')
class p():
def proceed(self):
global filename
if self.radio1.isChecked():
#if True:
try:
# This produces a scaled Airfoil with a DWire
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
except Exception, e:
FreeCAD.Console.PrintError("Error, not a valid .dat file\n")
self.close()
if self.radio2.isChecked():
try:
# This produces a scaled Airfoil with a BSpline
scalefactor=float(self.s1.text())
f1=str(filename)
importAirfoilDAT.insert(f1,"Unnamed")
points = FreeCAD.ActiveDocument.ActiveObject.Points
Draft.makeBSpline(points, closed=True)
Draft.scale(App.ActiveDocument.ActiveObject,delta=App.Vector(scalefactor,scalefactor,scalefactor),center=App.Vector(0,0,0),legacy=True)
App.getDocument("Unnamed").removeObject("DWire")
except:
FreeCAD.Console.PrintError("Error, not a valid .dat file\n")
self.close()
def close(self):
self.dialog.hide()
def __init__(self):
self.dialog = None
self.s1 = None
# Make dialog box and get the scale size
self.dialog = QtGui.QDialog()
self.dialog.resize(350,100)
self.dialog.setWindowTitle("Airfoil Import & Scale")
la = QtGui.QVBoxLayout(self.dialog)
t1 = QtGui.QLabel("Chord Length")
la.addWidget(t1)
self.s1 = QtGui.QLineEdit()
la.addWidget(self.s1)
# Add radio buttons to select between DWire and BSpline
self.radio1 = QRadioButton("Make DWire")
self.radio2 = QRadioButton("Make BSpline")
# set default to DWire & make radio buttons - Change self.radio1.setChecked(True) to
# self.radio2.setChecked(True) to set BSpline as default
self.radio1.setChecked(True)
la.addWidget(self.radio1)
la.addWidget(self.radio2)
# Add OK / Cancel buttons
okbox = QtGui.QDialogButtonBox(self.dialog)
okbox.setOrientation(QtCore.Qt.Horizontal)
okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
la.addWidget(okbox)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), self.proceed)
QtCore.QObject.connect(okbox, QtCore.SIGNAL("rejected()"), self.close)
QtCore.QMetaObject.connectSlotsByName(self.dialog)
self.dialog.show()
self.dialog.exec_()
p()
Link
Discussion on Forum
UIUC Applied Aerodynamics Group Departement of Aerospace Engineering