def sigint_handler(signum, frame):
""" Install handler for the SIGINT signal. To kill app through shell.
:param signum:
:param frame:
:return:
"""
QApplication.exit()
class ViewerQt(QMainWindow):
"""
Simple class for viewing items using Qt.
:param int width: Window width.
:param int height: Window height.
:param PySide.QtGui.QWidget parent: The parent widget.
"""
def __init__(self, width=800, height=600, parent=None):
# Start app
self._app = QApplication.instance()
if self._app is None:
self._app = QApplication([])
super(ViewerQt, self).__init__(parent)
# Window settings
self.setWindowTitle('pyOCCT')
_icon = os.path.dirname(__file__) + '/_resources/icon.png'
_qicon = QIcon(_icon)
self.setWindowIcon(_qicon)
# Create the OCCT view
frame = QFrame(self)
layout = QVBoxLayout(frame)
layout.setContentsMargins(0, 0, 0, 0)
self._the_view = QOpenCascadeWidget()
layout.addWidget(self._the_view)
self.setCentralWidget(frame)
self.show()
self.resize(width, height)
self.view.my_view.MustBeResized()
@property
def view(self):
return self._the_view
def _continue(self, *args):
self._app.exit()
def keyPressEvent(self, e):
if e.key() == ord('F'):
self.view.fit()
elif e.key() == ord('0'):
self.view.view_iso()
elif e.key() == ord('1'):
self.view.view_front()
elif e.key() == ord('2'):
self.view.view_top()
elif e.key() == ord('3'):
self.view.view_right()
elif e.key() == ord('4'):
self.view.view_rear()
elif e.key() == ord('5'):
self.view.view_bottom()
elif e.key() == ord('6'):
self.view.view_left()
elif e.key() == ord('S'):
self.view.set_display_mode('s')
elif e.key() == ord('W'):
self.view.set_display_mode('w')
elif e.key() == ord('C'):
self._continue()
else:
print('Key is not mapped to anything.')
def display_shape(self,
shape,
rgb=None,
transparency=None,
material=Graphic3d_NOM_DEFAULT):
"""
Display a shape.
:param OCCT.TopoDS.TopoDS_Shape shape: The shape.
:param rgb: The RGB color (r, g, b).
:type rgb: collections.Sequence[float] or OCCT.Quantity.Quantity_Color
:param float transparency: The transparency (0 to 1).
:param OCCT.Graphic3d.Graphic3d_NameOfMaterial material: The material.
:return: The AIS_Shape created for the part.
:rtype: OCCT.AIS.AIS_Shape
"""
return self.view.display_shape(shape, rgb, transparency, material)
def display_mesh(self,
mesh,
mode=2,
group=None,
display_nodes=False,
node_size=1,
node_color=(1, 1, 1),
display_edges=True,
edge_size=1,
edge_color=(0.5, 0.5, 0.5),
beam_size=2,
beam_color=(1, 1, 0),
face_color=(0, 0, 0.5),
back_face_color=None):
"""
Display a mesh.
:param mesh: The mesh.
:type mesh: OCCT.SMESH_SMESH_Mesh or OCCT.SMESH_SMESH_subMesh
:param int mode: Display mode for mesh elements (1=wireframe, 2=solid).
:param group: Option to display a group of mesh elements.
:type group: None or OCCT.SMESH.SMESH_Group group
:param bool display_nodes: Option to display mesh nodes or not. If a group of nodes is
provided, then this option is turned on by default.
:param float node_size: An option to scale the size of the node markers.
:param node_color: The RGB values for the node markers between 0 and 1.
:type node_color: tuple(float, float, float)
:param bool display_edges: An option to display the edges of faces and beams.
:param float edge_size: An option to scale the size of the edges.
:param edge_color: The RGB values for the edges between 0 and 1.
:type edge_color: tuple(float, float, float)
:param float beam_size: An option to scale the size of the beams.
:param beam_color: The RGB values for the beams between 0 and 1.
:type beam_color: tuple(float, float, float)
:param face_color: The RGB values for the faces between 0 and 1.
:type face_color: tuple(float, float, float)
:param back_face_color: The RGB values of the back side of the faces between 0 and 1. If not
provided, then the back faces are colored the same as the faces.
:type back_face_color: None or tuple(float, float, float)
:return: The MeshVS_Mesh created for the mesh.
:rtype: OCCT.MeshVS.MeshVS_Mesh
"""
return self.view.display_mesh(mesh, mode, group, display_nodes,
node_size, node_color, display_edges,
edge_size, edge_color, beam_size,
beam_color, face_color, back_face_color)
def add(self,
entity,
rgb=None,
transparency=None,
material=Graphic3d_NOM_DEFAULT,
mode=None):
"""
Add an entity to the view.
:param entity: The entity.
:param rgb: The RGB color (r, g, b).
:type rgb: collections.Sequence[float] or OCCT.Quantity.Quantity_Color
:param float transparency: The transparency (0 to 1).
:param OCCT.Graphic3d.Graphic3d_NameOfMaterial material: The material.
:param int mode: Display mode for mesh elements (1=wireframe, 2=solid).
:return: The AIS_Shape created for the entity. Returns *None* if the
entity cannot be converted to a shape.
:rtype: OCCT.AIS.AIS_Shape or None
"""
if isinstance(entity, TopoDS_Shape):
return self.view.display_shape(entity, rgb, transparency, material)
elif isinstance(entity, (gp_Pnt, Geom_Curve, Geom_Surface)):
return self.view.display_geom(entity, rgb, transparency, material)
elif HAS_SMESH and isinstance(entity, SMESH_Mesh):
return self.view.display_mesh(entity, mode)
else:
return None
def clear(self):
"""
Clear contents of the view.
:return: None.
"""
self.view.remove_all()
def start(self, fit=True):
"""
Start the viewer.
:param bool fit: Option to fit contents.
:return: None.
"""
print('Press \"c\" to continue...')
if fit:
self.view.fit()
self._app.exec_()
def on_quitApp_clicked(self):
if os.getenv('DESIGNER', False):
self.accept()
else:
QApplication.exit()
class ModalTester(object):
"""
Helper class for testing modal widgets (dialogs).
"""
def __init__(self, creator, tester):
"""
Initialise ModalTester.
:param creator: Function without arguments that creates a modal widget. Can be a class name.
A modal widget must have exec_() method.
:param tester: A function taking a widget as its argument that does testing.
"""
self.app = QApplication.instance()
if self.app is None:
self.app = QApplication([''])
self.creator = creator
self.tester = tester
self.widget = None
self.timer = None
self.passed = False
def __call__(self):
"""
Initialise testing.
"""
try:
self.widget = self.creator()
except:
traceback.print_exc()
self.app.exit(0)
if self.widget is not None:
self.widget.exec_()
def _idle(self):
"""
This function runs every time in QApplication's event loop.
Call the testing function.
"""
modal_widget = self.app.activeModalWidget()
if modal_widget is not None:
if self.widget is modal_widget:
try:
self.tester(self.widget)
self.passed = True
except:
traceback.print_exc()
if modal_widget.isVisible():
modal_widget.close()
def start(self):
"""
Start this tester.
"""
self.timer = QTimer()
# Connecting self.idle to a QTimer with 0 time delay
# makes it called when there are no events to process
self.timer.timeout.connect(self._idle)
self.timer.start()
# This calls __call__() method
QTimer.singleShot(0, self)
# Start the event loop
self.app.exec_()
class ShapeViewerQt(QMainWindow):
"""
Simple class for viewing items using Qt.
:param int width: Window width.
:param int height: Window height.
:param PySide.QtGui.QWidget parent: The parent widget.
"""
def __init__(self, width=800, height=600, parent=None):
# Start app
self._app = QApplication.instance()
if self._app is None:
self._app = QApplication([])
super(ShapeViewerQt, self).__init__(parent)
# Window settings
self.setWindowTitle('pyOCCT')
_icon = os.path.dirname(__file__) + '/_resources/icon.png'
_qicon = QIcon(_icon)
self.setWindowIcon(_qicon)
# Create the OCCT view
frame = QFrame(self)
layout = QVBoxLayout(frame)
layout.setContentsMargins(0, 0, 0, 0)
self._the_view = QOpenCascadeWidget(self)
layout.addWidget(self._the_view)
self.setCentralWidget(frame)
self.show()
self.resize(width, height)
self.view.my_view.MustBeResized()
@property
def view(self):
return self._the_view
def _continue(self, *args):
self._app.exit()
def keyPressEvent(self, e):
if e.key() == ord('F'):
self.view.fit()
elif e.key() == ord('0'):
self.view.view_iso()
elif e.key() == ord('1'):
self.view.view_front()
elif e.key() == ord('2'):
self.view.view_top()
elif e.key() == ord('3'):
self.view.view_right()
elif e.key() == ord('4'):
self.view.view_rear()
elif e.key() == ord('5'):
self.view.view_bottom()
elif e.key() == ord('6'):
self.view.view_left()
elif e.key() == ord('S'):
self.view.set_display_mode('s')
elif e.key() == ord('W'):
self.view.set_display_mode('w')
elif e.key() == ord('C'):
self._continue()
else:
print('Key is not mapped to anything.')
def display_shape(self,
shape,
rgb=None,
transparency=None,
material=Graphic3d_NOM_DEFAULT):
"""
Display a shape.
:param OCCT.TopoDS.TopoDS_Shape shape: The shape.
:param rgb: The RGB color (r, g, b).
:type rgb: collections.Sequence[float] or OCCT.Quantity.Quantity_Color
:param float transparency: The transparency (0 to 1).
:param OCCT.Graphic3d.Graphic3d_NameOfMaterial material: The material.
:return: The AIS_Shape created for the part.
:rtype: OCCT.AIS.AIS_Shape
"""
return self.view.display_shape(shape, rgb, transparency, material)
def add(self,
entity,
rgb=None,
transparency=None,
material=Graphic3d_NOM_DEFAULT):
"""
Add an entity to the view.
:param entity: The entity.
:param rgb: The RGB color (r, g, b).
:type rgb: collections.Sequence[float] or OCCT.Quantity.Quantity_Color
:param float transparency: The transparency (0 to 1).
:param OCCT.Graphic3d.Graphic3d_NameOfMaterial material: The material.
:return: The AIS_Shape created for the entity. Returns *None* if the
entity cannot be converted to a shape.
:rtype: OCCT.AIS.AIS_Shape or None
"""
if isinstance(entity, TopoDS_Shape):
return self.view.display_shape(entity, rgb, transparency, material)
elif isinstance(entity, (gp_Pnt, Geom_Curve, Geom_Surface)):
return self.view.display_geom(entity, rgb, transparency, material)
else:
return None
def clear(self):
"""
Clear contents of the view.
:return: None.
"""
self.view.remove_all()
def start(self, fit=True):
"""
Start the viewer.
:param bool fit: Option to fit contents.
:return: None.
"""
print('Press \"c\" to continue...')
if fit:
self.view.fit()
self._app.exec_()
