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#!/usr/bin/env python
##Copyright 2009-2014 Thomas Paviot (tpaviot@gmail.com)
##
##This file is part of pythonOCC.
##
##pythonOCC 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.
##
##pythonOCC 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 pythonOCC. If not, see <http://www.gnu.org/licenses/>.
import sys
from OCC import VERSION, Quantity
from OCC.Graphic3d import *
from OCC.V3d import V3d_ORTHOGRAPHIC, V3d_WIREFRAME, V3d_PERSPECTIVE
from OCC.Quantity import Quantity_Color, Quantity_TOC_RGB
def get_backend():
"""
loads a backend
backends are loaded in order of preference
since python comes with Tk included, but that PySide or PyQt4
is much preferred
"""
try:
from PySide import QtCore, QtGui
return 'pyside'
except:
pass
try:
from PyQt4 import QtCore, QtGui
return 'pyqt4'
except:
pass
# Check wxPython
try:
import wx
return 'wx'
except:
raise ImportError("No compliant GUI library found. You must have either PySide, PyQt4 or wxPython installed.")
sys.exit(1)
def init_display(backend_str=None, size=(1024, 768)):
global display, add_menu, add_function_to_menu, start_display, app, win, USED_BACKEND
if not backend_str:
USED_BACKEND = get_backend()
elif backend_str in ['wx', 'pyside', 'pyqt4']:
USED_BACKEND = backend_str
else:
raise ValueError("You should pass either 'wx','qt' or 'tkinter' to the init_display function.")
sys.exit(1)
# # wxPython based simple GUI
# if USED_BACKEND == 'wx':
# try:
# import wx
# except:
# raise ImportError("Please install wxPython.")
# from wxDisplay import wxViewer3d
#
# class AppFrame(wx.Frame):
# def __init__(self, parent):
# wx.Frame.__init__(self, parent, -1, "pythonOCC-%s 3d viewer ('wx' backend)" % VERSION, style=wx.DEFAULT_FRAME_STYLE, size=size)
# self.canva = wxViewer3d(self)
# self.menuBar = wx.MenuBar()
# self._menus = {}
# self._menu_methods = {}
#
# def add_menu(self, menu_name):
# _menu = wx.Menu()
# self.menuBar.Append(_menu, "&"+menu_name)
# self.SetMenuBar(self.menuBar)
# self._menus[menu_name] = _menu
#
# def add_function_to_menu(self, menu_name, _callable):
# # point on curve
# _id = wx.NewId()
# assert callable(_callable), 'the function supplied is not callable'
# try:
# self._menus[menu_name].Append(_id, _callable.__name__.replace('_', ' ').lower())
# except KeyError:
# raise ValueError('the menu item %s does not exist' % menu_name)
# self.Bind(wx.EVT_MENU, _callable, id=_id)
# app = wx.PySimpleApp()
# win = AppFrame(None)
# win.Show(True)
# wx.SafeYield()
# win.canva.InitDriver()
# app.SetTopWindow(win)
# display = win.canva._display
#
# def add_menu(*args, **kwargs):
# win.add_menu(*args, **kwargs)
#
# def add_function_to_menu(*args, **kwargs):
# win.add_function_to_menu(*args, **kwargs)
#
# def start_display():
# app.MainLoop()
# Qt based simple GUI
if USED_BACKEND in ['pyqt4', 'pyside']:
if USED_BACKEND == 'pyqt4':
from PyQt4 import QtCore, QtGui, QtOpenGL
from OCC.Display.pyqt4Display import qtViewer3d
elif USED_BACKEND == 'pyside':
from PySide import QtCore, QtGui, QtOpenGL
from OCC.Display.pysideDisplay import qtViewer3d
class MainWindow(QtGui.QMainWindow):
def __init__(self, *args):
QtGui.QMainWindow.__init__(self, *args)
self.canva = qtViewer3d(self)
self.setWindowTitle("pythonOCC-%s 3d viewer ('%s' backend)" % (VERSION, USED_BACKEND))
self.resize(size[0], size[1])
self.setCentralWidget(self.canva)
if not sys.platform == 'darwin':
self.menu_bar = self.menuBar()
else:
# create a parentless menubar
# see: http://stackoverflow.com/questions/11375176/qmenubar-and-qmenu-doesnt-show-in-mac-os-x?lq=1
# noticeable is that the menu ( alas ) is created in the topleft of the screen, just
# next to the apple icon
# still does ugly things like showing the "Python" menu in bold
self.menu_bar = QtGui.QMenuBar()
self._menus = {}
self._menu_methods = {}
# place the window in the center of the screen, at half the screen size
self.centerOnScreen()
def centerOnScreen(self):
'''Centers the window on the screen.'''
resolution = QtGui.QDesktopWidget().screenGeometry()
self.move((resolution.width() / 2) - (self.frameSize().width() / 2),
(resolution.height() / 2) - (self.frameSize().height() / 2))
def add_menu(self, menu_name):
_menu = self.menu_bar.addMenu("&"+menu_name)
self._menus[menu_name] = _menu
def add_function_to_menu(self, menu_name, _callable):
assert callable(_callable), 'the function supplied is not callable'
try:
_action = QtGui.QAction(_callable.__name__.replace('_', ' ').lower(), self)
# if not, the "exit" action is now shown...
_action.setMenuRole(QtGui.QAction.NoRole)
self.connect(_action, QtCore.SIGNAL("triggered()"), _callable)
self._menus[menu_name].addAction(_action)
except KeyError:
raise ValueError('the menu item %s does not exist' % menu_name)
# following couple of lines is a twek to enable ipython --gui='qt'
app = QtGui.QApplication.instance() # checks if QApplication already exists
if not app: # create QApplication if it doesnt exist
app = QtGui.QApplication(sys.argv)
win = MainWindow()
win.show()
win.canva.InitDriver()
display = win.canva._display
if sys.platform != "linux2":
display.EnableAntiAliasing()
# background gradient
#display.set_bg_gradient_color(206, 215, 222, 128, 128, 128)
display.set_bg_gradient_color(23,1,32,23,1,32)
#display.View.SetVisualization(V3d_ORTHOGRAPHIC)
# display black trihedron
display.display_trihedron()
display.View.SetProj(1, 1, 1)
def add_menu(*args, **kwargs):
win.add_menu(*args, **kwargs)
def add_function_to_menu(*args, **kwargs):
win.add_function_to_menu(*args, **kwargs)
def start_display():
win.raise_() # make the application float to the top
app.exec_()
return display, start_display, add_menu, add_function_to_menu
if __name__ == '__main__':
display, start_display, add_menu, add_function_to_menu = init_display()
from OCC.BRepPrimAPI import BRepPrimAPI_MakeSphere, BRepPrimAPI_MakeBox
#print(display.Viewer.TypeOfView)
def sphere(event=None):
display.DisplayShape(BRepPrimAPI_MakeSphere(100).Shape(), update=True)
def cube(event=None):
display.DisplayShape(BRepPrimAPI_MakeBox(1, 1, 5).Shape(), material= Graphic3d_NOM_ALUMINIUM, update=True)
#display.Viewer.SetDefaultTypeOfView(V3d_ORTHOGRAPHIC)
#aColor1 = Quantity_Color(float(255)/255.,
# float(0)/255.,
# float(0)/255., Quantity_TOC_RGB)
#display.Viewer.SetDefaultBackgroundColor(aColor1)
#display.SetModeShaded()
#display.View_Top()
def exit(event=None):
sys.exit()
add_menu('primitives')
add_function_to_menu('primitives', sphere)
add_function_to_menu('primitives', cube)
add_function_to_menu('primitives', exit)
cube()
start_display()
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