def test_marker_actor(interactive=False):
scene = window.Scene()
scene.background((1, 1, 1))
centers_3do = np.array([[4, 0, 0], [4, 4, 0], [4, 8, 0]])
markers_2d = ['o', 's', 'd', '^', 'p', 'h', 's6', 'x', '+']
center_markers_2d = np.array(
[[0, i*2, 0] for i in range(len(markers_2d))])
fake_spheres = actor.markers(
centers_3do,
colors=(0, 1, 0),
scales=1,
marker='3d'
)
markers_2d = actor.markers(
center_markers_2d,
colors=(0, 1, 0),
scales=1,
marker=markers_2d
)
scene.add(fake_spheres)
scene.add(markers_2d)
if interactive:
window.show(scene)
arr = window.snapshot(scene)
colors = np.array([[0, 1, 0] for i in range(12)])
report = window.analyze_snapshot(arr, colors=colors)
npt.assert_equal(report.objects, 12)
def test_opengl_state_simple():
for gl_state in [
window.gl_reset_blend, window.gl_enable_depth,
window.gl_disable_depth, window.gl_enable_blend,
window.gl_disable_blend, window.gl_set_additive_blending,
window.gl_set_normal_blending,
window.gl_set_multiplicative_blending,
window.gl_set_subtractive_blending,
window.gl_set_additive_blending_white_background
]:
scene = window.Scene()
centers = np.array([[0, 0, 0], [-.1, 0, 0], [.1, 0, 0]])
colors = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
actors = actor.markers(
centers,
marker='s',
colors=colors,
marker_opacity=.5,
scales=.2,
)
showm = window.ShowManager(scene,
size=(900, 768),
reset_camera=False,
order_transparent=False)
scene.add(actors)
# single effect
shaders.shader_apply_effects(showm.window, actors, effects=gl_state)
showm.render()
def test_opengl_state_add_remove_and_check():
scene = window.Scene()
centers = np.array([
[0, 0, 0],
[-.1, 0, 0],
[.1, 0, 0]
])
colors = np.array([
[1, 0, 0],
[0, 1, 0],
[0, 0, 1]
])
actor_no_depth_test = actor.markers(
centers,
marker='s',
colors=colors,
marker_opacity=.5,
scales=.2,
)
showm = window.ShowManager(
scene,
size=(900, 768), reset_camera=False,
order_transparent=False)
scene.add(actor_no_depth_test)
showm.render()
state = window.gl_get_current_state(showm.window.GetState())
before_depth_test = state['GL_DEPTH_TEST']
npt.assert_equal(before_depth_test, True)
# TODO: we are getting bad request for enum status
# it seems we are not provide the correct values
# vtkOpenGLState.cxx:1299 WARN| Bad request for enum status
id_observer = shaders.shader_apply_effects(
showm.window, actor_no_depth_test,
effects=[
window.gl_reset_blend, window.gl_disable_blend,
window.gl_disable_depth])
showm.render()
state = window.gl_get_current_state(showm.window.GetState())
# print('type', type(showm.window.GetState()))
after_depth_test = state['GL_DEPTH_TEST']
npt.assert_equal(after_depth_test, False)
# removes the no_depth_test effect
remove_observer_from_actor(actor_no_depth_test, id_observer)
showm.render()
state = window.gl_get_current_state(showm.window.GetState())
after_remove_depth_test_observer = state['GL_DEPTH_TEST']
npt.assert_equal(after_remove_depth_test_observer, True)
from fury.shaders import shader_apply_effects
from fury.utils import remove_observer_from_actor
from fury import window, actor
import itertools
###############################################################################
# We just proceed as usual: creating the actors and initializing a scene in
# FURY
centers = np.array([[0, 0, 0], [-.1, 0, 0], [.1, 0, 0]])
colors = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
actor_no_depth_test = actor.markers(
centers,
marker='s',
colors=colors,
marker_opacity=.5,
scales=.2,
)
actor_normal_blending = actor.markers(
centers - np.array([[0, -.5, 0]]),
marker='s',
colors=colors,
marker_opacity=.5,
scales=.2,
)
actor_add_blending = actor.markers(
centers - np.array([[0, -1, 0]]),
marker='s',
colors=colors,
marker_opacity=.5,
marker_symbols = ['o', 's', 'd', '^', 'p', 'h', 's6', 'x', '+']
markers = [
np.random.choice(marker_symbols)
for i in range(n)]
centers = np.random.normal(size=(n, 3), scale=10)
colors = np.random.uniform(size=(n, 3))
############################################################################
# You can control the edge color and edge width for each marker
nodes_actor = actor.markers(
centers,
marker=markers,
edge_width=.1,
edge_color=[255, 255, 0],
colors=colors,
scales=.5,
)
############################################################################
# In addition, an 3D sphere it's also a valid type of marker
nodes_3d_actor = actor.markers(
centers+np.ones_like(centers)*25,
marker='3d',
colors=colors,
scales=.5,
)
scene = window.Scene()