def testAnimation(self): a = pyCubbyFlow.FLIPSolver3() f = pyCubbyFlow.Frame() a.Update(f) self.assertEqual(a.currentFrame.index, 0) f.Advance() a.Update(f) self.assertEqual(a.currentFrame.index, 1)
def testInheritance(self):
anim = MyPhysicsAnimation()
anim.isUsingFixedSubTimeSteps = False
f = pyCubbyFlow.Frame(index=3, timeIntervalInSeconds=0.1)
anim.Update(f)
self.assertEqual(anim.initData, 1)
self.assertEqual(anim.advData, 20)
def test_inheritance():
anim = MyPhysicsAnimation()
anim.isUsingFixedSubTimeSteps = False
f = pyCubbyFlow.Frame(index=3, timeIntervalInSeconds=0.1)
anim.Update(f)
assert anim.init_data == 1
assert anim.adv_data == 20
def test_flip_solver3_animation():
a = pyCubbyFlow.FLIPSolver3()
f = pyCubbyFlow.Frame()
a.Update(f)
assert a.currentFrame.index == 0
f.Advance()
a.Update(f)
assert a.currentFrame.index == 1
def test_volume_particle_emitter2():
# Basic ctor test
sphere = pyCubbyFlow.Sphere2()
emitter = pyCubbyFlow.VolumeParticleEmitter2(
sphere, pyCubbyFlow.BoundingBox2D((-1, -2), (4, 2)), 0.1, (-1, 0.5),
(3, 4), 5.0, 30, 0.01, False, True, 42)
assert emitter.surface
assert_bounding_box_similar(emitter.maxRegion,
pyCubbyFlow.BoundingBox2D((-1, -2), (4, 2)))
assert emitter.spacing == 0.1
assert_vector_similar(emitter.initialVelocity, (-1, 0.5))
assert_vector_similar(emitter.linearVelocity, (3, 4))
assert emitter.angularVelocity == 5.0
assert emitter.maxNumberOfParticles == 30
assert emitter.jitter == 0.01
assert not emitter.isOneShot
assert emitter.allowOverlapping
assert emitter.isEnabled
# Another basic ctor test
emitter2 = pyCubbyFlow.VolumeParticleEmitter2(
implicitSurface=sphere,
maxRegion=pyCubbyFlow.BoundingBox2D((-1, -2), (4, 2)),
spacing=0.1,
initialVelocity=(-1, 0.5),
linearVelocity=(3, 4),
angularVelocity=5.0,
maxNumberOfParticles=3000,
jitter=0.01,
isOneShot=False,
allowOverlapping=True,
seed=42)
assert emitter2.surface
assert_bounding_box_similar(emitter2.maxRegion,
pyCubbyFlow.BoundingBox2D((-1, -2), (4, 2)))
assert emitter2.spacing == 0.1
assert_vector_similar(emitter2.initialVelocity, (-1, 0.5))
assert_vector_similar(emitter2.linearVelocity, (3, 4))
assert emitter2.angularVelocity == 5.0
assert emitter2.maxNumberOfParticles == 3000
assert emitter2.jitter == 0.01
assert not emitter2.isOneShot
assert emitter2.allowOverlapping
assert emitter2.isEnabled
# Emit some particles
frame = pyCubbyFlow.Frame()
solver = pyCubbyFlow.ParticleSystemSolver2()
solver.emitter = emitter2
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles > 0
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles > old_num_particles
# Disabling emitter should stop emitting particles
emitter2.isEnabled = False
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles == old_num_particles
# Re-enabling emitter should resume emission
emitter2.isEnabled = True
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles > old_num_particles
# One-shot emitter
emitter3 = pyCubbyFlow.VolumeParticleEmitter2(
implicitSurface=sphere,
maxRegion=pyCubbyFlow.BoundingBox2D((-1, -2), (4, 2)),
spacing=0.1,
initialVelocity=(-1, 0.5),
linearVelocity=(3, 4),
angularVelocity=5.0,
maxNumberOfParticles=3000,
jitter=0.01,
isOneShot=True,
allowOverlapping=True,
seed=42)
# Emit some particles
frame = pyCubbyFlow.Frame()
solver = pyCubbyFlow.ParticleSystemSolver2()
solver.emitter = emitter3
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles > 0
assert not emitter3.isEnabled
# Should not emit more particles
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles == old_num_particles
# Re-enabling the emitter should make it emit one more time
emitter3.isEnabled = True
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles > old_num_particles
# ...and gets disabled again
old_num_particles = solver.particleSystemData.numberOfParticles
solver.Update(frame)
frame.Advance()
assert solver.particleSystemData.numberOfParticles == old_num_particles
def testInheritance(self): anim = MyAnimation() f = pyCubbyFlow.Frame(3, 0.02) anim.Update(f) self.assertEqual(anim.lastFrame.index, 3) self.assertEqual(anim.lastFrame.timeIntervalInSeconds, 0.02)
def test_volume_grid_emitter3():
# Basic ctor test
sphere = pyCubbyFlow.Sphere3(center=(0.5, 0.5, 0.5), radius=0.15)
emitter = pyCubbyFlow.VolumeGridEmitter3(sphere, False)
assert emitter.sourceRegion
assert not emitter.isOneShot
assert emitter.isEnabled
# Another basic ctor test
emitter2 = pyCubbyFlow.VolumeGridEmitter3(sourceRegion=sphere,
isOneShot=False)
assert emitter2.sourceRegion
assert not emitter2.isOneShot
assert emitter2.isEnabled
# One-shot emitter
emitter3 = pyCubbyFlow.VolumeGridEmitter3(sourceRegion=sphere,
isOneShot=True)
assert emitter3.isOneShot
frame = pyCubbyFlow.Frame()
solver = pyCubbyFlow.GridSmokeSolver3(resolution=(32, 32, 32),
domainSizeX=1.0)
solver.emitter = emitter3
emitter3.AddStepFunctionTarget(solver.smokeDensity, 0.0, 1.0)
emitter3.AddStepFunctionTarget(solver.temperature, 0.0, 1.0)
# Emit some smoke
old_den = np.array(solver.smokeDensity.DataView(), copy=True)
solver.Update(frame)
frame.Advance()
new_den = np.array(solver.smokeDensity.DataView(), copy=True)
diff = np.linalg.norm(old_den - new_den)
assert diff > 0.0
assert not emitter3.isEnabled
# Should not emit more smoke
old_den = np.array(solver.smokeDensity.DataView(), copy=True)
emitter3.Update(0, 0)
new_den = np.array(solver.smokeDensity.DataView(), copy=True)
diff = np.linalg.norm(old_den - new_den)
assert diff < 1e-20
# Re-enabling the emitter should make it emit one more time
emitter3.isEnabled = True
old_den = np.array(solver.smokeDensity.DataView(), copy=True)
solver.Update(frame)
frame.Advance()
new_den = np.array(solver.smokeDensity.DataView(), copy=True)
diff = np.linalg.norm(old_den - new_den)
assert diff > 0.0
assert not emitter3.isEnabled
# ...and gets disabled again
old_den = np.array(solver.smokeDensity.DataView(), copy=True)
emitter3.Update(0, 0)
new_den = np.array(solver.smokeDensity.DataView(), copy=True)
diff = np.linalg.norm(old_den - new_den)
assert diff < 1e-20
def test_inheritance():
anim = MyAnimation()
f = pyCubbyFlow.Frame(3, 0.02)
anim.Update(f)
assert anim.lastFrame.index == 3
assert anim.lastFrame.timeIntervalInSeconds == 0.02