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C++ Vector3r::cwiseAbs方法代码示例

本文整理汇总了C++中Vector3r::cwiseAbs方法的典型用法代码示例。如果您正苦于以下问题:C++ Vector3r::cwiseAbs方法的具体用法?C++ Vector3r::cwiseAbs怎么用?C++ Vector3r::cwiseAbs使用的例子?那么恭喜您, 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Vector3r的用法示例。


在下文中一共展示了Vector3r::cwiseAbs方法的1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C++代码示例。

示例1: updateEnergy

void NewtonIntegrator::updateEnergy(const shared_ptr<Body>& b, const State* state, const Vector3r& fluctVel, const Vector3r& f, const Vector3r& m){
	assert(b->isStandalone() || b->isClump());
	// always positive dissipation, by-component: |F_i|*|v_i|*damping*dt (|T_i|*|ω_i|*damping*dt for rotations)
	if(damping!=0. && state->isDamped){
		scene->energy->add(fluctVel.cwiseAbs().dot(f.cwiseAbs())*damping*scene->dt,"nonviscDamp",nonviscDampIx,/*non-incremental*/false);
		// when the aspherical integrator is used, torque is damped instead of ang acceleration; this code is only approximate
		scene->energy->add(state->angVel.cwiseAbs().dot(m.cwiseAbs())*damping*scene->dt,"nonviscDamp",nonviscDampIx,false);
	}
	// kinetic energy
	Real Etrans=.5*state->mass*fluctVel.squaredNorm();
	Real Erot;
	// rotational terms
	if(b->isAspherical()){
		Matrix3r mI; mI<<state->inertia[0],0,0, 0,state->inertia[1],0, 0,0,state->inertia[2];
		Matrix3r T(state->ori);
		Erot=.5*b->state->angVel.transpose().dot((T.transpose()*mI*T)*b->state->angVel);
	} else { Erot=0.5*state->angVel.dot(state->inertia.cwiseProduct(state->angVel)); }
	if(!kinSplit) scene->energy->add(Etrans+Erot,"kinetic",kinEnergyIx,/*non-incremental*/true);
	else{ scene->energy->add(Etrans,"kinTrans",kinEnergyTransIx,true); scene->energy->add(Erot,"kinRot",kinEnergyRotIx,true); }
	// gravitational work (work done by gravity is "negative", since the energy appears in the system from outside)
	scene->energy->add(-gravity.dot(b->state->vel)*b->state->mass*scene->dt,"gravWork",fieldWorkIx,/*non-incremental*/false);
}
开发者ID:DEMANY,项目名称:trunk,代码行数:22,代码来源:NewtonIntegrator.cpp


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