def main():
img_reader = ImageReaderFactory().GenerateImageReader(
"./data/0000000000.png")
img_actor = ImageActor(img_reader.GetOutputPort())
contour_widget = vtk.vtkContourWidget()
contourRepresentation = vtk.vtkOrientedGlyphContourRepresentation()
contourRepresentation.GetLinesProperty().SetColor(1, 1, 0)
contour_widget.SetRepresentation(contourRepresentation)
contour_widget.GetContourRepresentation().SetLineInterpolator(
vtk.vtkLinearContourLineInterpolator())
numPts = 10
points = vtk.vtkPoints()
for i in range(numPts):
angle = 2.0 * vtk.vtkMath.Pi() * i / numPts
points.InsertNextPoint(
[0.1 * math.cos(angle), 0.1 * math.sin(angle), -1.0])
vertexIndices = vtk.vtkIdList()
for i in range(numPts):
vertexIndices.InsertNextId(i)
# vertexIndices.InsertNextId(0)
lines = vtk.vtkCellArray()
lines.InsertNextCell(vertexIndices)
polydata = vtk.vtkPolyData()
polydata.SetPoints(points)
polydata.SetLines(lines)
mapper = vtk.vtkPolyDataMapper2D()
mapper.SetInputData(polydata)
actor = vtk.vtkActor2D()
actor.SetMapper(mapper)
renderer = vtk.vtkRenderer()
renderer.SetBackground(0.1, 0.2, 0.4)
renderer.AddActor(img_actor.actor)
renderer.AddActor(actor)
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
style = vtk.vtkInteractorStyleJoystickCamera()
interactor.SetInteractorStyle(style)
contour_widget.SetInteractor(interactor)
contour_widget.On()
contour_widget.Initialize(polydata)
renderer.ResetCamera()
interactor.Start()
def InitInteractor(self, observer=None):
"""Sets up default VTK 3D interactor"""
self.windowInteractor = vtk.vtkRenderWindowInteractor()
self.windowInteractor.SetRenderWindow(self.renderWindow)
style = vtk.vtkInteractorStyleJoystickCamera()
self.windowInteractor.SetInteractorStyle(style)
self.windowInteractor.Initialize()
if observer != None:
self.windowInteractor.AddObserver(vtk.vtkCommand.MouseMoveEvent,
observer, 1)
"""
import logging
from atom.api import Atom, Dict, Str, observe, Value, Int, Tuple, List
from functools import partial
import vtk
logging.basicConfig(format='%(asctime)s: %(levelname)s: %(message)s',
level=logging.DEBUG)
INTERACTION_STYLES = {
'TrackBallActor': vtk.vtkInteractorStyleTrackballActor(),
'TrackBallCamera':
vtk.vtkInteractorStyleTrackballCamera(), # default style
'JoystickCamera': vtk.vtkInteractorStyleJoystickCamera(),
'JoystickActor': vtk.vtkInteractorStyleJoystickActor(),
'Terrain': vtk.vtkInteractorStyleTerrain(),
}
class VTKRenderController(Atom):
""" vtk render controller - supply renderers to VTKCanvas """
zoomFactor = Value()
numOfRenderers = Int()
callbacks = Dict()
customPorts = Dict()
customBackgrounds = Dict()
interactorStyle = Str()
style = Value()
def _keypress(iren, event):
# qt creates and passes a vtkGenericRenderWindowInteractor
vp = settings.plotter_instance
key = iren.GetKeySym()
#print('Pressed key:', key, [vp])
if key in ["q", "Q", "space", "Return"]:
iren.ExitCallback()
return
elif key == "Escape":
sys.stdout.flush()
settings.plotter_instance.closeWindow()
elif key in ["F1", "Pause"]:
sys.stdout.flush()
colors.printc('\n[F1] Execution aborted. Exiting python now.')
settings.plotter_instance.closeWindow()
sys.exit(0)
elif key == "m":
if vp.clickedActor in vp.getActors():
vp.clickedActor.GetProperty().SetOpacity(0.02)
bfp = vp.clickedActor.GetBackfaceProperty()
if bfp and hasattr(vp.clickedActor, "_bfprop"):
vp.clickedActor._bfprop = bfp # save it
vp.clickedActor.SetBackfaceProperty(None)
else:
for a in vp.getActors():
if a.GetPickable():
a.GetProperty().SetOpacity(0.02)
bfp = a.GetBackfaceProperty()
if bfp and hasattr(a, "_bfprop"):
a._bfprop = bfp
a.SetBackfaceProperty(None)
elif key == "comma":
if vp.clickedActor in vp.getActors():
ap = vp.clickedActor.GetProperty()
aal = max([ap.GetOpacity() * 0.75, 0.01])
ap.SetOpacity(aal)
bfp = vp.clickedActor.GetBackfaceProperty()
if bfp and hasattr(vp.clickedActor, "_bfprop"):
vp.clickedActor._bfprop = bfp
vp.clickedActor.SetBackfaceProperty(None)
else:
for a in vp.getActors():
if a.GetPickable():
ap = a.GetProperty()
aal = max([ap.GetOpacity() * 0.75, 0.01])
ap.SetOpacity(aal)
bfp = a.GetBackfaceProperty()
if bfp and hasattr(a, "_bfprop"):
a._bfprop = bfp
a.SetBackfaceProperty(None)
elif key == "period":
if vp.clickedActor in vp.getActors():
ap = vp.clickedActor.GetProperty()
aal = min([ap.GetOpacity() * 1.25, 1.0])
ap.SetOpacity(aal)
if aal == 1 and hasattr(vp.clickedActor,
"_bfprop") and vp.clickedActor._bfprop:
# put back
vp.clickedActor.SetBackfaceProperty(vp.clickedActor._bfprop)
else:
for a in vp.getActors():
if a.GetPickable():
ap = a.GetProperty()
aal = min([ap.GetOpacity() * 1.25, 1.0])
ap.SetOpacity(aal)
if aal == 1 and hasattr(a, "_bfprop") and a._bfprop:
a.SetBackfaceProperty(a._bfprop)
elif key == "slash":
if vp.clickedActor in vp.getActors():
vp.clickedActor.GetProperty().SetOpacity(1)
if hasattr(vp.clickedActor, "_bfprop") and vp.clickedActor._bfprop:
vp.clickedActor.SetBackfaceProperty(vp.clickedActor._bfprop)
else:
for a in vp.getActors():
if a.GetPickable():
a.GetProperty().SetOpacity(1)
if hasattr(a, "_bfprop") and a._bfprop:
a.clickedActor.SetBackfaceProperty(a._bfprop)
elif key == "P":
if vp.clickedActor in vp.getActors():
acts = [vp.clickedActor]
else:
acts = vp.getActors()
for ia in acts:
if ia.GetPickable():
try:
ps = ia.GetProperty().GetPointSize()
if ps > 1:
ia.GetProperty().SetPointSize(ps - 1)
ia.GetProperty().SetRepresentationToPoints()
except AttributeError:
pass
elif key == "p":
if vp.clickedActor in vp.getActors():
acts = [vp.clickedActor]
else:
acts = vp.getActors()
for ia in acts:
if ia.GetPickable():
try:
ps = ia.GetProperty().GetPointSize()
ia.GetProperty().SetPointSize(ps + 2)
ia.GetProperty().SetRepresentationToPoints()
except AttributeError:
pass
elif key == "w":
if vp.clickedActor and vp.clickedActor in vp.getActors():
vp.clickedActor.GetProperty().SetRepresentationToWireframe()
else:
for a in vp.getActors():
if a and a.GetPickable():
if a.GetProperty().GetRepresentation() == 1: # toggle
a.GetProperty().SetRepresentationToSurface()
else:
a.GetProperty().SetRepresentationToWireframe()
elif key == "r":
vp.renderer.ResetCamera()
#############################################################
### now intercept custom observer ###########################
#############################################################
if vp.keyPressFunction:
if key not in ["Shift_L", "Control_L", "Super_L", "Alt_L"]:
if key not in ["Shift_R", "Control_R", "Super_R", "Alt_R"]:
vp.verbose = False
vp.keyPressFunction(key)
return
if key == "h":
from vtkplotter.docs import tips
tips()
return
if key == "a":
iren.ExitCallback()
cur = iren.GetInteractorStyle()
if isinstance(cur, vtk.vtkInteractorStyleTrackballCamera):
print("\nInteractor style changed to TrackballActor")
print(" you can now move and rotate individual meshes:")
print(" press X twice to save the repositioned mesh,")
print(" press 'a' to go back to normal style.")
iren.SetInteractorStyle(vtk.vtkInteractorStyleTrackballActor())
else:
iren.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())
iren.Start()
return
if key == "j":
iren.ExitCallback()
cur = iren.GetInteractorStyle()
if isinstance(cur, vtk.vtkInteractorStyleJoystickCamera):
iren.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())
else:
print("\nInteractor style changed to Joystick,", end="")
print(" press j to go back to normal.")
iren.SetInteractorStyle(vtk.vtkInteractorStyleJoystickCamera())
iren.Start()
return
if key == "S":
screenshot("screenshot.png")
colors.printc("~camera Saved rendering window as screenshot.png",
c="blue")
return
if key == "C":
cam = vp.renderer.GetActiveCamera()
print('\n### Example code to position this vtkCamera:')
print('vp = vtkplotter.Plotter()\n...')
print('vp.camera.SetPosition(',
[round(e, 3) for e in cam.GetPosition()], ')')
print('vp.camera.SetFocalPoint(',
[round(e, 3) for e in cam.GetFocalPoint()], ')')
print('vp.camera.SetViewUp(', [round(e, 3) for e in cam.GetViewUp()],
')')
print('vp.camera.SetDistance(', round(cam.GetDistance(), 3), ')')
print('vp.camera.SetClippingRange(',
[round(e, 3) for e in cam.GetClippingRange()], ')')
return
if key == "s":
if vp.clickedActor and vp.clickedActor in vp.getActors():
vp.clickedActor.GetProperty().SetRepresentationToSurface()
else:
for a in vp.getActors():
if a and a.GetPickable():
a.GetProperty().SetRepresentationToSurface()
elif key == "V":
if not (vp.verbose):
vp._tips()
vp.verbose = not (vp.verbose)
print("Verbose: ", vp.verbose)
elif key == "1":
vp.icol += 1
if vp.clickedActor and hasattr(vp.clickedActor, "GetProperty"):
vp.clickedActor.GetMapper().ScalarVisibilityOff()
vp.clickedActor.GetProperty().SetColor(colors.colors1[(vp.icol) %
10])
else:
for i, ia in enumerate(vp.getActors()):
if not ia.GetPickable():
continue
ia.GetProperty().SetColor(colors.colors1[(i + vp.icol) % 10])
ia.GetMapper().ScalarVisibilityOff()
addons.addLegend()
elif key == "2":
vp.icol += 1
if vp.clickedActor and hasattr(vp.clickedActor, "GetProperty"):
vp.clickedActor.GetMapper().ScalarVisibilityOff()
vp.clickedActor.GetProperty().SetColor(colors.colors2[(vp.icol) %
10])
else:
for i, ia in enumerate(vp.getActors()):
if not ia.GetPickable():
continue
ia.GetProperty().SetColor(colors.colors2[(i + vp.icol) % 10])
ia.GetMapper().ScalarVisibilityOff()
addons.addLegend()
elif key == "3":
c = colors.getColor("gold")
acs = vp.getActors()
if len(acs) == 0: return
alpha = 1.0 / len(acs)
for ia in acs:
if not ia.GetPickable():
continue
ia.GetProperty().SetColor(c)
ia.GetProperty().SetOpacity(alpha)
ia.GetMapper().ScalarVisibilityOff()
addons.addLegend()
elif key == "4":
for ia in vp.getActors():
if not ia.GetPickable():
continue
if isinstance(ia, Actor):
iascals = ia.scalars()
if len(iascals):
stype, sname = iascals[ia._scals_idx]
if "ormal" not in sname: # exclude normals
ia.scalars(ia._scals_idx)
ia.GetMapper().ScalarVisibilityOn()
colors.printc("..active scalars set to:",
sname,
"\ttype:",
stype,
c='g',
bold=0)
ia._scals_idx += 1
if ia._scals_idx >= len(iascals):
ia._scals_idx = 0
addons.addLegend()
elif key == "5":
bgc = numpy.array(vp.renderer.GetBackground()).sum() / 3
if bgc <= 0:
bgc = 0.223
elif 0 < bgc < 1:
bgc = 1
else:
bgc = 0
vp.renderer.SetBackground(bgc, bgc, bgc)
elif "KP_" in key: # change axes style
asso = {
"KP_Insert": 0,
"KP_0": 0,
"KP_End": 1,
"KP_1": 1,
"KP_Down": 2,
"KP_2": 2,
"KP_Next": 3,
"KP_3": 3,
"KP_Left": 4,
"KP_4": 4,
"KP_Begin": 5,
"KP_5": 5,
"KP_Right": 6,
"KP_6": 6,
"KP_Home": 7,
"KP_7": 7,
"KP_Up": 8,
"KP_8": 8,
"KP_Prior": 9,
"KP_9": 9,
}
clickedr = vp.renderers.index(vp.renderer)
if key in asso.keys():
if vp.axes_instances[clickedr]:
if hasattr(vp.axes_instances[clickedr],
"EnabledOff"): # widget
vp.axes_instances[clickedr].EnabledOff()
else:
vp.renderer.RemoveActor(vp.axes_instances[clickedr])
vp.axes_instances[clickedr] = None
addons.addAxes(axtype=asso[key], c=None)
vp.interactor.Render()
elif key in ["k", "K"]:
for a in vp.getActors():
ptdata = a.GetMapper().GetInput().GetPointData()
cldata = a.GetMapper().GetInput().GetCellData()
arrtypes = dict()
arrtypes[vtk.VTK_UNSIGNED_CHAR] = "UNSIGNED_CHAR"
arrtypes[vtk.VTK_UNSIGNED_INT] = "UNSIGNED_INT"
arrtypes[vtk.VTK_FLOAT] = "FLOAT"
arrtypes[vtk.VTK_DOUBLE] = "DOUBLE"
foundarr = 0
if key == "k":
for i in range(ptdata.GetNumberOfArrays()):
name = ptdata.GetArrayName(i)
if name == "Normals":
continue
ptdata.SetActiveScalars(name)
foundarr = 1
if not foundarr:
print("No vtkArray is associated to points", end="")
if hasattr(a, "_legend"):
print(" for actor:", a._legend)
else:
print()
if key == "K":
for i in range(cldata.GetNumberOfArrays()):
name = cldata.GetArrayName(i)
if name == "Normals":
continue
cldata.SetActiveScalars(name)
foundarr = 1
if not foundarr:
print("No vtkArray is associated to cells", end="")
if hasattr(a, "_legend"):
print(" for actor:", a._legend)
else:
print()
a.GetMapper().ScalarVisibilityOn()
elif key == "l":
if vp.clickedActor in vp.getActors():
acts = [vp.clickedActor]
else:
acts = vp.getActors()
for ia in acts:
if not ia.GetPickable():
continue
try:
ev = ia.GetProperty().GetEdgeVisibility()
ia.GetProperty().SetEdgeVisibility(not ev)
ia.GetProperty().SetRepresentationToSurface()
ia.GetProperty().SetLineWidth(0.1)
except AttributeError:
pass
elif key == "n": # show normals to an actor
from vtkplotter.analysis import normalLines
if vp.clickedActor in vp.getActors():
if vp.clickedActor.GetPickable():
vp.renderer.AddActor(normalLines(vp.clickedActor))
iren.Render()
else:
print("Click an actor and press n to add normals.")
elif key == "x":
if vp.justremoved is None:
if vp.clickedActor in vp.getActors() or isinstance(
vp.clickedActor, vtk.vtkAssembly):
vp.justremoved = vp.clickedActor
vp.renderer.RemoveActor(vp.clickedActor)
if hasattr(vp.clickedActor, '_legend') and vp.clickedActor._legend:
print('...removing actor: ' + str(vp.clickedActor._legend) +
', press x to put it back')
else:
print("Click an actor and press x to toggle it.")
else:
vp.renderer.AddActor(vp.justremoved)
vp.renderer.Render()
vp.justremoved = None
addons.addLegend()
elif key == "X":
if vp.clickedActor:
if not vp.cutterWidget:
addons.addCutterTool(vp.clickedActor)
else:
fname = "clipped.vtk"
confilter = vtk.vtkPolyDataConnectivityFilter()
if isinstance(vp.clickedActor, vtk.vtkActor):
confilter.SetInputData(
vp.clickedActor.GetMapper().GetInput())
elif isinstance(vp.clickedActor, vtk.vtkAssembly):
act = vp.clickedActor.getActors()[0]
confilter.SetInputData(act.GetMapper().GetInput())
else:
confilter.SetInputData(vp.clickedActor.polydata(True))
confilter.SetExtractionModeToLargestRegion()
confilter.Update()
cpd = vtk.vtkCleanPolyData()
cpd.SetInputData(confilter.GetOutput())
cpd.Update()
w = vtk.vtkPolyDataWriter()
w.SetInputData(cpd.GetOutput())
w.SetFileName(fname)
w.Write()
colors.printc("~save Saved file:", fname, c="m")
vp.cutterWidget.Off()
vp.cutterWidget = None
else:
for a in vp.actors:
if isinstance(a, vtk.vtkVolume):
addons.addCutterTool(a)
return
colors.printc(
"Click an actor and press X to open the cutter box widget.",
c=4)
elif key == "i": # print info
if vp.clickedActor:
utils.printInfo(vp.clickedActor)
else:
utils.printInfo(vp)
if iren:
iren.Render()
def plotSurface(domain):
domain.GetOutput().GetPointData().SetActiveScalars('TS')
lut = vtk.vtkLookupTable()
lut.SetNumberOfColors(16)
lut.SetHueRange(2/3,0.0)
#lut.SetValueRange (270, 273);
lut.SetNanColor(1,1,1,0.5)
lut.SetNumberOfTableValues(3)
lut.SetNumberOfColors(16)
lut.Build()
# create a rendering window and renderer
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
WIDTH=1200
HEIGHT=1200
renWin.SetSize(WIDTH,HEIGHT)
# create a renderwindowinteractor
joystickStyle = vtk.vtkInteractorStyleJoystickCamera()
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
iren.SetInteractorStyle(joystickStyle)
# mapper
coneMapper = vtk.vtkDataSetMapper()
coneMapper.SetInputData(domain.GetOutput())
coneMapper.SetScalarModeToUsePointData()
coneMapper.ScalarVisibilityOn()
coneMapper.SetLookupTable(lut)
coneMapper.SetScalarRange(domain.GetOutput().GetPointData().GetArray("TS").GetRange())
# actor
coneActor = vtk.vtkActor()
coneActor.SetMapper(coneMapper)
coneActor.SetScale(1,1,50)
coneActor.GetProperty().SetEdgeColor(0.7,0.7,0.7)
#coneActor.GetProperty().EdgeVisibilityOn()
coneActor.GetProperty().SetAmbient(0.0)
coneActor.GetProperty().SetSpecularPower(0)
coneActor.GetProperty().SetDiffuse(1)
cam = vtk.vtkCamera()
cam.SetPosition(10.89,46.83,0.07)
#cam.SetPosition(10.89,46.83,0.08)
cam.SetFocalPoint(10.82,46.83,0.02)
cam.SetViewUp(0,0,1)
# assign actor to the renderer
ren.SetBackground(1,1,1)
ren.AddActor(coneActor)
ren.SetActiveCamera(cam)
ren.ResetCamera()
# enable user interface interactor
#iren.Initialize()
renWin.OffScreenRenderingOn()
renWin.Render()
#iren.Start()
renderLarge = vtk.vtkRenderLargeImage()
renderLarge.SetInput(ren)
renderLarge.SetMagnification(5)
# w2if = vtk.vtkWindowToImageFilter()
# w2if.SetInputConnection(renderLarge.GetOutputPort())
# w2if.Update()
writer = vtk.vtkPNGWriter()
writer.SetInputConnection(renderLarge.GetOutputPort())
writer.SetFileName('cosipy.png')
writer.Write()
def show(
self, *actors, **options
# at=None,
# axes=None,
# c=None,
# alpha=None,
# wire=False,
# bc=None,
# resetcam=True,
# zoom=False,
# interactive=None,
# rate=None,
# viewup="",
# azimuth=0,
# elevation=0,
# roll=0,
# interactorStyle=0,
# q=False,
):
"""
Render a list of actors.
Allowed input objects are: ``filename``, ``vtkPolyData``, ``vtkActor``,
``vtkActor2D``, ``vtkImageActor``, ``vtkAssembly`` or ``vtkVolume``.
If filename is given, its type is guessed based on its extension.
Supported formats are:
`vtu, vts, vtp, ply, obj, stl, 3ds, xml, neutral, gmsh, pcd, xyz, txt, byu,
tif, slc, vti, mhd, png, jpg`.
:param int at: number of the renderer to plot to, if more than one exists
:param int axes: set the type of axes to be shown
- 0, no axes,
- 1, draw three gray grid walls
- 2, show cartesian axes from (0,0,0)
- 3, show positive range of cartesian axes from (0,0,0)
- 4, show a triad at bottom left
- 5, show a cube at bottom left
- 6, mark the corners of the bounding box
- 7, draw a simple ruler at the bottom of the window
- 8, show the ``vtkCubeAxesActor`` object,
- 9, show the bounding box outLine,
- 10, show three circles representing the maximum bounding box
:param c: surface color, in rgb, hex or name formats
:param bc: set a color for the internal surface face
:param bool wire: show actor in wireframe representation
:param float azimuth/elevation/roll: move camera accordingly
:param str viewup: either ['x', 'y', 'z'] or a vector to set vertical direction
:param bool resetcam: re-adjust camera position to fit objects
:param bool interactive: pause and interact with window (True)
or continue execution (False)
:param float rate: maximum rate of `show()` in Hertz
:param int interactorStyle: set the type of interaction
- 0, TrackballCamera
- 1, TrackballActor
- 2, JoystickCamera
- 3, Unicam
- 4, Flight
- 5, RubberBand3D
- 6, RubberBandZoom
:param bool q: force program to quit after `show()` command returns.
"""
if not hasattr(self, 'window'):
return
at = options.pop("at", None)
axes = options.pop("axes", None)
c = options.pop("c", None)
alpha = options.pop("alpha", None)
wire = options.pop("wire", False)
bc = options.pop("bc", None)
resetcam = options.pop("resetcam", True)
zoom = options.pop("zoom", False)
interactive = options.pop("interactive", None)
rate = options.pop("rate", None)
viewup = options.pop("viewup", "")
azimuth = options.pop("azimuth", 0)
elevation = options.pop("elevation", 0)
roll = options.pop("roll", 0)
interactorStyle = options.pop("interactorStyle", 0)
q = options.pop("q", False)
if self.offscreen:
interactive = False
self.interactive = False
def scan(wannabeacts):
scannedacts = []
if not utils.isSequence(wannabeacts):
wannabeacts = [wannabeacts]
for a in wannabeacts: # scan content of list
if isinstance(a, vtk.vtkActor):
scannedacts.append(a)
if hasattr(a, 'trail'
) and a.trail and not a.trail in self.actors:
scannedacts.append(a.trail)
elif isinstance(a, vtk.vtkAssembly):
scannedacts.append(a)
if a.trail and not a.trail in self.actors:
scannedacts.append(a.trail)
elif isinstance(a, vtk.vtkActor2D):
if isinstance(a, vtk.vtkCornerAnnotation):
for a2 in settings.collectable_actors:
if isinstance(a2, vtk.vtkCornerAnnotation):
if at in a2.renderedAt: # remove old message
self.removeActor(a2)
scannedacts.append(a)
elif isinstance(a, vtk.vtkImageActor):
scannedacts.append(a)
elif isinstance(a, vtk.vtkVolume):
scannedacts.append(a)
elif isinstance(a, vtk.vtkImageData):
scannedacts.append(Volume(a))
elif isinstance(a, vtk.vtkPolyData):
scannedacts.append(Actor(a, c, alpha, wire, bc))
elif isinstance(a, str): # assume a filepath was given
out = vtkio.load(a, c, alpha, wire, bc)
if isinstance(out, str):
colors.printc("~times File not found:", out, c=1)
scannedacts.append(None)
else:
scannedacts.append(out)
elif "dolfin" in str(type(a)): # assume a dolfin.Mesh object
from vtkplotter.dolfin import MeshActor
out = MeshActor(a, c=c, alpha=alpha, wire=True, bc=bc)
scannedacts.append(out)
elif a is None:
pass
elif isinstance(a, vtk.vtkUnstructuredGrid):
gf = vtk.vtkGeometryFilter()
gf.SetInputData(a)
gf.Update()
scannedacts.append(
Actor(gf.GetOutput(), c, alpha, wire, bc))
elif isinstance(a, vtk.vtkStructuredGrid):
gf = vtk.vtkGeometryFilter()
gf.SetInputData(a)
gf.Update()
scannedacts.append(
Actor(gf.GetOutput(), c, alpha, wire, bc))
elif isinstance(a, vtk.vtkRectilinearGrid):
gf = vtk.vtkRectilinearGridGeometryFilter()
gf.SetInputData(a)
gf.Update()
scannedacts.append(
Actor(gf.GetOutput(), c, alpha, wire, bc))
elif isinstance(a, vtk.vtkMultiBlockDataSet):
for i in range(a.GetNumberOfBlocks()):
b = a.GetBlock(i)
if isinstance(b, vtk.vtkPolyData):
scannedacts.append(Actor(b, c, alpha, wire, bc))
elif isinstance(b, vtk.vtkImageData):
scannedacts.append(Volume(b))
else:
colors.printc("~!? Cannot understand input in show():",
type(a),
c=1)
scannedacts.append(None)
return scannedacts
if len(actors) == 0:
actors = None
elif len(actors) == 1:
actors = actors[0]
else:
actors = utils.flatten(actors)
if actors is not None:
self.actors = []
actors2show = scan(actors)
for a in actors2show:
if a not in self.actors:
self.actors.append(a)
else:
actors2show = scan(self.actors)
self.actors = list(actors2show)
if axes is not None:
self.axes = axes
if interactive is not None:
self.interactive = interactive
if at is None and len(self.renderers) > 1:
# in case of multiple renderers a call to show w/o specifing
# at which renderer will just render the whole thing and return
if self.interactor:
if zoom:
self.camera.Zoom(zoom)
self.interactor.Render()
if self.interactive:
self.interactor.Start()
return
if at is None:
at = 0
if at < len(self.renderers):
self.renderer = self.renderers[at]
else:
colors.printc("~times Error in show(): wrong renderer index",
at,
c=1)
return
if not self.camera:
self.camera = self.renderer.GetActiveCamera()
self.camera.SetParallelProjection(self.infinity)
if self.camThickness:
self.camera.SetThickness(self.camThickness)
if self.sharecam:
for r in self.renderers:
r.SetActiveCamera(self.camera)
if len(self.renderers) == 1:
self.renderer.SetActiveCamera(self.camera)
# rendering
for ia in actors2show: # add the actors that are not already in scene
if ia:
if isinstance(ia, vtk.vtkVolume):
self.renderer.AddVolume(ia)
else:
self.renderer.AddActor(ia)
if hasattr(ia, 'renderedAt'):
ia.renderedAt.add(at)
else:
colors.printc(
"~lightning Warning: Invalid actor in actors list, skip.",
c=5)
# remove the ones that are not in actors2show
for ia in self.getActors(at):
if ia not in actors2show:
self.renderer.RemoveActor(ia)
if hasattr(ia, 'renderedAt'):
ia.renderedAt.discard(at)
for c in self.scalarbars:
self.renderer.RemoveActor(c)
if hasattr(c, 'renderedAt'):
c.renderedAt.discard(at)
if self.axes is not None:
addons.addAxes()
addons.addLegend()
if self.showFrame and len(self.renderers) > 1:
addons.addFrame()
if resetcam or self.initializedIren == False:
self.renderer.ResetCamera()
if not self.initializedIren and self.interactor:
self.initializedIren = True
self.interactor.Initialize()
self.interactor.RemoveObservers("CharEvent")
if self.verbose and self.interactive:
docs.onelinetip()
self.initializedPlotter = True
if zoom:
self.camera.Zoom(zoom)
if azimuth:
self.camera.Azimuth(azimuth)
if elevation:
self.camera.Elevation(elevation)
if roll:
self.camera.Roll(roll)
if len(viewup):
if viewup == "x":
viewup = [1, 0, 0]
elif viewup == "y":
viewup = [0, 1, 0]
elif viewup == "z":
viewup = [0, 0, 1]
self.camera.Azimuth(60)
self.camera.Elevation(30)
self.camera.Azimuth(0.01) # otherwise camera gets locked
self.camera.SetViewUp(viewup)
self.renderer.ResetCameraClippingRange()
self.window.Render()
scbflag = False
for a in self.actors:
if (hasattr(a, "scalarbar") and a.scalarbar is not None
and utils.isSequence(a.scalarbar)):
if len(a.scalarbar) == 5: # addScalarBar
s1, s2, s3, s4, s5 = a.scalarbar
sb = addons.addScalarBar(a, s1, s2, s3, s4, s5)
scbflag = True
a.scalarbar = sb # save scalarbar actor
elif len(a.scalarbar) == 10: # addScalarBar3D
s0, s1, s2, s3, s4, s5, s6, s7, s8 = a.scalarbar
sb = addons.addScalarBar3D(a, at, s0, s1, s2, s3, s4, s5,
s6, s7, s8)
scbflag = True
a.scalarbar = sb # save scalarbar actor
if scbflag:
self.window.Render()
if settings.allowInteraction and not self.offscreen:
self.allowInteraction()
if settings.interactorStyle is not None:
interactorStyle = settings.interactorStyle
if interactorStyle == 0 or interactorStyle == "TrackballCamera":
pass # do nothing
elif interactorStyle == 1 or interactorStyle == "TrackballActor":
self.interactor.SetInteractorStyle(
vtk.vtkInteractorStyleTrackballActor())
elif interactorStyle == 2 or interactorStyle == "JoystickCamera":
self.interactor.SetInteractorStyle(
vtk.vtkInteractorStyleJoystickCamera())
elif interactorStyle == 3 or interactorStyle == "Unicam":
self.interactor.SetInteractorStyle(vtk.vtkInteractorStyleUnicam())
elif interactorStyle == 4 or interactorStyle == "Flight":
self.interactor.SetInteractorStyle(vtk.vtkInteractorStyleFlight())
elif interactorStyle == 5 or interactorStyle == "RubberBand3D":
self.interactor.SetInteractorStyle(
vtk.vtkInteractorStyleRubberBand3D())
elif interactorStyle == 6 or interactorStyle == "RubberBandZoom":
self.interactor.SetInteractorStyle(
vtk.vtkInteractorStyleRubberBandZoom())
if self.interactor and self.interactive:
self.interactor.Start()
if rate:
if self.clock is None: # set clock and limit rate
self._clockt0 = time.time()
self.clock = 0.0
else:
t = time.time() - self._clockt0
elapsed = t - self.clock
mint = 1.0 / rate
if elapsed < mint:
time.sleep(mint - elapsed)
self.clock = time.time() - self._clockt0
if q: # gracefully exit
if self.verbose:
print("q flag set to True. Exit.")
sys.exit(0)
"""
import logging
from atom.api import Atom, Dict, Str, observe, Value, Int, Tuple, List
from functools import partial
import vtk
logging.basicConfig(format="%(asctime)s: %(levelname)s: %(message)s", level=logging.DEBUG)
INTERACTION_STYLES = {
"TrackBallActor": vtk.vtkInteractorStyleTrackballActor(),
"TrackBallCamera": vtk.vtkInteractorStyleTrackballCamera(), # default style
"JoystickCamera": vtk.vtkInteractorStyleJoystickCamera(),
"JoystickActor": vtk.vtkInteractorStyleJoystickActor(),
"Terrain": vtk.vtkInteractorStyleTerrain(),
}
class VTKRenderController(Atom):
""" vtk render controller - supply renderers to VTKCanvas """
zoomFactor = Value()
numOfRenderers = Int()
callbacks = Dict()
customPorts = Dict()
customBackgrounds = Dict()
interactorStyle = Str()
style = Value()