def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
s = e.new_scene()
self.e = e
self.s = s
############################################################
# Create a new scene and set up the visualization.
d = ArraySource()
sc, vec = self.make_data()
d.origin = (-5, -5, -5)
d.scalar_data = sc
d.vector_data = vec
e.add_source(d)
# Create an outline for the data.
o = Outline()
e.add_module(o)
# View the data.
st = Streamline()
e.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]
e.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]
e.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]
e.add_module(st)
seed.widget.position = (-5.0, 3.75, 3.75)
st.tube_filter.radius = 0.2
self.st = st
self.scene = e.current_scene
return
def streamline():
"""Sets up the mayavi pipeline for the visualization.
"""
# Create an outline for the data.
o = Outline()
mayavi.add_module(o)
s = Streamline(streamline_type='tube')
mayavi.add_module(s)
s.stream_tracer.integration_direction = 'both'
s.seed.widget.center = 3.5, 0.625, 1.25
s.module_manager.scalar_lut_manager.show_scalar_bar = True
i = IsoSurface()
mayavi.add_module(i)
i.contour.contours[0] = 550
i.actor.property.opacity = 0.5
scene.scene.camera.view_up = [
0.17522011839126639, 0.35024314762581926, 0.92012371323214404
]
scene.scene.camera.clipping_range = [16.803351361631922, 58.674779759221536]
scene.scene.camera.compute_view_plane_normal()
scene.scene.render()
surface.actor.property.edge_visibility = True
surface.actor.property.line_width = 1.1832000017166138
surface.actor.property.line_width = 1.1831999999999998
vtkxml_file_reader1 = engine.open(
u'/Users/prabhu/work/MEDIA/m2/data/shuttle_flow_vel.vti', scene)
from enthought.mayavi.filters.extract_vector_norm import ExtractVectorNorm
extract_vector_norm = ExtractVectorNorm()
engine.add_filter(extract_vector_norm, vtkxml_file_reader1)
from enthought.mayavi.modules.streamline import Streamline
streamline = Streamline()
engine.add_filter(streamline, extract_vector_norm)
from enthought.mayavi.modules.outline import Outline
outline = Outline()
module_manager1 = extract_vector_norm.children[0]
engine.add_filter(outline, module_manager1)
scene.scene.camera.position = [
-35.527291132838059, 1.5271766756373661, 3.1941487321866866
]
scene.scene.camera.focal_point = [
-0.30313491821289062, 0.0, 1.4027749300003052
]
scene.scene.camera.view_angle = 30.0
scene.scene.camera.view_up = [
0.061459962287939186, 0.30146804029963314, 0.9514934018233987
]
gp.actor.mapper.scalar_visibility = True gp.actor.property.representation = 'surface' gp.actor.property.diffuse = 0.0 gp.actor.property.ambient = 1.0 gp.actor.property.opacity = 1 gp = GridPlane() script.add_module(gp) gp.grid_plane.axis = 'z' gp.actor.mapper.scalar_visibility = False gp.actor.property.representation = 'wireframe' gp.actor.property.diffuse = 0.0 gp.actor.property.ambient = 1.0 gp.actor.property.opacity = 1 strl = Streamline() script.add_module(strl) strl.streamline_type = "tube" # tube, ribbon or line strl.tube_filter.number_of_sides = 10 strl.tube_filter.radius = 0.1 strl.seed.widget = strl.seed.widget_list[1] # [Sphere, Line, Plane, Point] strl.seed.widget.align = "z_axis" # or "x_axis", "y_axis" strl.seed.widget.point1 = (-0.7, 0, 0) strl.seed.widget.point2 = (-0.7, 0, 4.82) strl.seed.widget.resolution = 10 strl.seed.widget.enabled = False # <markdowncell> # This should look like: #
gp.actor.mapper.scalar_visibility = True gp.actor.property.representation = 'surface' gp.actor.property.diffuse = 0.0 gp.actor.property.ambient = 1.0 gp.actor.property.opacity = 1 gp = GridPlane() script.add_module(gp) gp.grid_plane.axis = 'z' gp.actor.mapper.scalar_visibility = False gp.actor.property.representation = 'wireframe' gp.actor.property.diffuse = 0.0 gp.actor.property.ambient = 1.0 gp.actor.property.opacity = 1 strl = Streamline() script.add_module(strl) strl.streamline_type = "tube" # tube, ribbon or line strl.tube_filter.number_of_sides = 10 strl.tube_filter.radius = 0.1 strl.seed.widget = strl.seed.widget_list[1] # [Sphere, Line, Plane, Point] strl.seed.widget.align = "z_axis" # or "x_axis", "y_axis" strl.seed.widget.point1 = (-0.7, 0, 0) strl.seed.widget.point2 = (-0.7, 0, 4.82) strl.seed.widget.resolution = 10 strl.seed.widget.enabled = False # <markdowncell> # This should look like: #
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')