本文整理汇总了Python中SofaPython.Quaternion.normalized方法的典型用法代码示例。如果您正苦于以下问题：Python Quaternion.normalized方法的具体用法？Python Quaternion.normalized怎么用？Python Quaternion.normalized使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SofaPython.Quaternion的用法示例。
在下文中一共展示了Quaternion.normalized方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: normalizeRotation
# 需要导入模块: from SofaPython import Quaternion [as 别名]
# 或者: from SofaPython.Quaternion import normalized [as 别名]
def normalizeRotation(self):
## Numerical drift can produce non-unit quaternions.
## Forcing its normalization.
self.rotation = quat.normalized(self.rotation)示例2: run
# 需要导入模块: from SofaPython import Quaternion [as 别名]
# 或者: from SofaPython.Quaternion import normalized [as 别名]
def run():
ok = True
info = SofaPython.mass.RigidMassInfo()
# testing axis-aligned known geometric shapes
for m in xrange(len(meshes)):
mesh = meshes[m]
mesh_path = path + meshes[m]
for s in xrange(len(scales)):
scale = scales[s]
if mesh=="cylinder.obj" and scale[0]!=scale[1]:
continue
for d in xrange(len(densities)):
density=densities[d]
info.setFromMesh( mesh_path, density, scale )
error = " ("+meshes[m]+", s="+Tools.cat(scale)+" d="+str(density)+")"
ok &= EXPECT_TRUE( almostEqualReal(info.mass, masses[m][s][d]), "mass"+error+" "+str(info.mass)+"!="+str(masses[m][s][d]) )
ok &= EXPECT_TRUE( almostEqualLists(info.com,[x*0.5 for x in scale]), "com"+error+" "+Tools.cat(info.com)+"!="+Tools.cat([x*0.5 for x in scale]) )
ok &= EXPECT_TRUE( almostEqualLists(info.diagonal_inertia,inertia[m][s][d]), "inertia"+error+" "+str(info.diagonal_inertia)+"!="+str(inertia[m][s][d]) )
# testing diagonal inertia extraction from a rotated cuboid
mesh = "cube.obj"
mesh_path = path + mesh
scale = scales[3]
density = 1
theory = sorted(inertia[0][3][0])
for r in rotations:
info.setFromMesh( mesh_path, density, scale, r )
local = sorted(info.diagonal_inertia)
ok &= EXPECT_TRUE( almostEqualLists(local,theory), "inertia "+str(local)+"!="+str(theory)+" (rotation="+str(r)+")" )
# testing extracted inertia rotation
mesh = "rotated_cuboid_12_35_-27.obj"
mesh_path = path + mesh
density = 1
info.setFromMesh( mesh_path, density )
# theoretical results
scale = [2,3,1]
mass = density * scale[0]*scale[1]*scale[2]
inertiat = numpy.empty(3)
inertiat[0] = 1.0/12.0 * mass * (scale[1]*scale[1]+scale[2]*scale[2]) # x
inertiat[1] = 1.0/12.0 * mass * (scale[0]*scale[0]+scale[2]*scale[2]) # y
inertiat[2] = 1.0/12.0 * mass * (scale[0]*scale[0]+scale[1]*scale[1]) # z
# used quaternion in mesh
q = Quaternion.normalized( Quaternion.from_euler( [12*math.pi/180.0, 35*math.pi/180.0, -27*math.pi/180.0] ) )
# corresponding rotation matrices (ie frame defined by columns)
mt = Quaternion.to_matrix( q )
m = Quaternion.to_matrix( info.inertia_rotation )
# matching inertia
idxt = numpy.argsort(inertiat)
idx = numpy.argsort(info.diagonal_inertia)
# checking if each axis/column are parallel (same or opposite for unitary vectors)
for i in xrange(3):
ok &= EXPECT_TRUE( almostEqualLists(mt[:,idxt[i]].tolist(),m[:,idx[i]].tolist(),1e-5) or almostEqualLists(mt[:,idxt[i]].tolist(),(-m[:,idx[i]]).tolist(),1e-5), "wrong inertia rotation" )
# print mt[:,idxt]
# print m [:,idx ]
return ok