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import numpy as num import vtk
from .. import vtk_util
class Overlay(object):
def __init__(self): pass
def set_parent(self, parent): pass
def unset_parent(self): pass
def show(self): pass
def hide(self): pass
class TimeRangeOverlay(Overlay):
def __init__(self): self._tmin
def update_ranges(self, tmin, tmax, wmin, wmax): self._trange = tmin, tmax self._wrange = wmin, wmax
def update_size(self, renwin):
size_x, size_y = renwin.GetSize() cx = size_x / 2.0 # cy = size_y / 2.0
vertices = num.array([ [cx - 100., cx - 100., 0.0], [cx - 100., cx + 100., 0.0], [cx + 100., cx + 100., 0.0], [cx - 100., cx - 100., 0.0]])
vpoints = vtk.vtkPoints() vpoints.SetNumberOfPoints(vertices.shape[0]) vpoints.SetData(vtk_util.numpy_to_vtk(vertices))
faces = num.array([[0, 1, 2, 3]], dtype=num.int) cells = vtk_util.faces_to_cells(faces)
pd = vtk.vtkPolyData() pd.SetPoints(vpoints) pd.SetLines(cells)
mapper = vtk.vtkPolyDataMapper2D()
vtk_util.vtk_set_input(mapper, pd)
act = vtk.vtkActor2D() act.SetMapper(mapper)
prop = act.GetProperty() prop.SetColor(1.0, 1.0, 1.0) prop.SetOpacity(0.5) prop.SetLineWidth(2.0) print(type(prop), dir(prop)) # prop.EdgeVisibilityOn()
self.ren.AddActor2D(act) |