def do(self):
############################################################
# Imports.
script = self.script
from enthought.mayavi.sources.array_source import ArraySource
from enthought.mayavi.modules.outline import Outline
from enthought.mayavi.modules.streamline import Streamline
############################################################
# Create a new scene and set up the visualization.
s = self.new_scene()
d = ArraySource()
sc, vec = self.make_data()
d.origin = (-5, -5, -5)
d.scalar_data = sc
d.vector_data = vec
script.add_source(d)
# Create an outline for the data.
o = Outline()
script.add_module(o)
# View the data.
st = Streamline()
script.add_module(st)
widget = st.seed.widget
widget.set(radius=1.0,
center=(-4.0, -4.0, -4.0),
theta_resolution=4,
phi_resolution=4)
st = Streamline(streamline_type='ribbon')
seed = st.seed
seed.widget = seed.widget_list[1]
script.add_module(st)
seed.widget.set(point1=(-5.0, -4.5, -4.0), point2=(-5.0, -4.5, 4.0))
st.ribbon_filter.width = 0.25
st = Streamline(streamline_type='tube')
seed = st.seed
seed.widget = seed.widget_list[2]
script.add_module(st)
seed.widget.set(center=(-5.0, 1.5, -2.5))
st.tube_filter.radius = 0.15
st = Streamline(streamline_type='tube')
seed = st.seed
seed.widget = seed.widget_list[3]
script.add_module(st)
seed.widget.position = (-5.0, 3.75, 3.75)
st.tube_filter.radius = 0.2
# Set the scene to a suitable view.
s.scene.z_plus_view()
c = s.scene.camera
c.azimuth(-30)
c.elevation(30)
s.render()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
############################################################
# Test if the modules respond correctly when the components
# are changed.
tf = st.tube_filter
st.tube_filter = tf.__class__()
st.tube_filter = tf
st.ribbon_filter = st.ribbon_filter.__class__()
seed = st.seed
st.seed = seed.__class__()
st.seed = seed
st.actor = st.actor.__class__()
tracer = st.stream_tracer
st.stream_tracer = tracer.__class__()
st.stream_tracer = tracer
s.render()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
s.render()
############################################################
# Test if saving a visualization and restoring it works.
bg = s.scene.background
# Save visualization.
f = StringIO()
f.name = abspath('test.mv2') # We simulate a file.
script.save_visualization(f)
f.seek(0) # So we can read this saved data.
# Remove existing scene.
engine = script.engine
engine.close_scene(s)
# Load visualization
script.load_visualization(f)
s = engine.current_scene
# Set the scene to a suitable view.
s.scene.z_plus_view()
c = s.scene.camera
c.azimuth(-30)
c.elevation(30)
s.render()
s.scene.background = bg
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
############################################################
# Test if the MayaVi2 visualization can be deepcopied.
# Pop the source object.
sources = s.children
s.children = []
# Add it back to see if that works without error.
s.children.extend(sources)
s.scene.reset_zoom()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
# Now deepcopy the source and replace the existing one with
# the copy. This basically simulates cutting/copying the
# object from the UI via the right-click menu on the tree
# view, and pasting the copy back.
sources1 = copy.deepcopy(sources)
s.children[:] = sources
s.scene.reset_zoom()
self.compare_image(s, 'images/test_streamline.png')
def do(self):
############################################################
# Imports.
script = self.script
from enthought.mayavi.sources.array_source import ArraySource
from enthought.mayavi.modules.outline import Outline
from enthought.mayavi.modules.streamline import Streamline
############################################################
# Create a new scene and set up the visualization.
s = self.new_scene()
d = ArraySource()
sc, vec = self.make_data()
d.origin = (-5, -5, -5)
d.scalar_data = sc
d.vector_data = vec
script.add_source(d)
# Create an outline for the data.
o = Outline()
script.add_module(o)
# View the data.
st = Streamline()
script.add_module(st)
widget = st.seed.widget
widget.set(radius=1.0, center=(-4.0, -4.0, -4.0),
theta_resolution=4, phi_resolution=4)
st = Streamline(streamline_type='ribbon')
seed = st.seed
seed.widget = seed.widget_list[1]
script.add_module(st)
seed.widget.set(point1=(-5.0, -4.5, -4.0), point2=(-5.0, -4.5, 4.0))
st.ribbon_filter.width = 0.25
st = Streamline(streamline_type='tube')
seed = st.seed
seed.widget = seed.widget_list[2]
script.add_module(st)
seed.widget.set(center=(-5.0, 1.5, -2.5))
st.tube_filter.radius = 0.15
st = Streamline(streamline_type='tube')
seed = st.seed
seed.widget = seed.widget_list[3]
script.add_module(st)
seed.widget.position=(-5.0, 3.75, 3.75)
st.tube_filter.radius = 0.2
# Set the scene to a suitable view.
s.scene.z_plus_view()
c = s.scene.camera
c.azimuth(-30)
c.elevation(30)
s.render()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
############################################################
# Test if the modules respond correctly when the components
# are changed.
tf = st.tube_filter
st.tube_filter = tf.__class__()
st.tube_filter = tf
st.ribbon_filter = st.ribbon_filter.__class__()
seed = st.seed
st.seed = seed.__class__()
st.seed = seed
st.actor = st.actor.__class__()
tracer = st.stream_tracer
st.stream_tracer = tracer.__class__()
st.stream_tracer = tracer
s.render()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
s.render()
############################################################
# Test if saving a visualization and restoring it works.
bg = s.scene.background
# Save visualization.
f = StringIO()
f.name = abspath('test.mv2') # We simulate a file.
script.save_visualization(f)
f.seek(0) # So we can read this saved data.
# Remove existing scene.
engine = script.engine
engine.close_scene(s)
# Load visualization
script.load_visualization(f)
s = engine.current_scene
# Set the scene to a suitable view.
s.scene.z_plus_view()
c = s.scene.camera
c.azimuth(-30)
c.elevation(30)
s.render()
s.scene.background = bg
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
############################################################
# Test if the MayaVi2 visualization can be deepcopied.
# Pop the source object.
sources = s.children
s.children = []
# Add it back to see if that works without error.
s.children.extend(sources)
s.scene.reset_zoom()
# Now compare the image.
self.compare_image(s, 'images/test_streamline.png')
# Now deepcopy the source and replace the existing one with
# the copy. This basically simulates cutting/copying the
# object from the UI via the right-click menu on the tree
# view, and pasting the copy back.
sources1 = copy.deepcopy(sources)
s.children[:] = sources
s.scene.reset_zoom()
self.compare_image(s, 'images/test_streamline.png')
