pendule.cpp
9ad6607cfc74ancarola

pendule.cpp
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			#include "pendule.h"

			#include "models/glsphere.h"

			#include "graphtools.h"

			using namespace symkit;

			#ifndef M_PI
			#define M_PI 3.141592654
			#endif

			const Vector Pendule::p = {M_PI / 2};
			const Vector Pendule::p_prime = {- M_PI / 4};

			const double Pendule::l = 5.0;
			const double Pendule::m = 1.0;

			Pendule::Pendule(models::GLSphere * model)

			: OscillatorParticle(NULL, model)
			{
			/* initialize descriptor */
			pendule = new PenduleS(p, p_prime, l, m);

			/* bind the descriptor */
			bind(pendule);

			/* set fill mode to false (default true) */
			toggleFillMode();

			/* set evolving to true (default false) */
			toggleEvolving();
			}

			Pendule::~Pendule()
			{
			/* Release descriptor */
			release();

			delete pendule;
			}

			#include "skerror.h"

			using namespace symkit;

			void Pendule::initialize()
			{
			if (!isBound())
			throw SKError(ERR_INIT,
			"initialize",
			"alpha.Pendule",
			"Descriptor isn't bound");
			}

			#include "assets.h" // colorGradientFunction

			/* set color */
			void Pendule::evolve(float)
			{
			setColor( alpha::colorGradientFunction(pendule->getp_prime().module(), 3.0) );
			}

			#include <QGLShaderProgram>

			/* draw/render function */
			void Pendule::render(render_s args)
			{
			OscillatorParticle::render(args);

			glBegin(GL_LINES);

			args.shaderProgram->setAttributeValue(AttributeID::vertex, ARRAY_3D_FLOAT_ARGS(SVector<3>::nullv)); // center
			args.shaderProgram->setAttributeValue(AttributeID::vertex, ARRAY_3D_FLOAT_ARGS( -position() ));

			glEnd();
			}