C++ Matrix3x3函数代码示例

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本文整理汇总了C++中Matrix3x3函数的典型用法代码示例。如果您正苦于以下问题：C++ Matrix3x3函数的具体用法？C++ Matrix3x3怎么用？C++ Matrix3x3使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Matrix3x3函数的20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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: tred3

/**
 * \brief Tridiagonalizes a 3x3 matrix using a single
 * Householder transformation and returns the result.
 *
 * Based on "Geometric Tools" by David Eberly.
 */
static inline void tred3(Matrix3x3 &m, Float *diag, Float *subd) {
	Float m00 = m(0, 0), m01 = m(0, 1), m02 = m(0, 2),
	      m11 = m(1, 1), m12 = m(1, 2), m22 = m(2, 2);

	diag[0] = m00;
	subd[2] = 0;
	if (std::abs(m02) > std::numeric_limits<Float>::epsilon()) {
		Float length = std::sqrt(m01*m01 + m02*m02),
			  invLength = 1 / length;
		m01 *= invLength;
		m02 *= invLength;
		Float q = 2*m01*m12 + m02*(m22 - m11);
		diag[1] = m11 + m02*q;
		diag[2] = m22 - m02*q;
		subd[0] = length;
		subd[1] = m12 - m01*q;
		m = Matrix3x3(
			1, 0, 0,
			0, m01, m02,
			0, m02, -m01);
	} else {
		/* The matrix is already tridiagonal,
		   return an identity transformation matrix */
		diag[1] = m11;
		diag[2] = m22;
		subd[0] = m01;
		subd[1] = m12;
		m = Matrix3x3(
			1, 0, 0,
			0, 1, 0,
			0, 0, 1);
	}
}

开发者ID:AdrianJohnston，项目名称:ShapeNetRender，代码行数:39，代码来源:transform.cpp

示例2: Matrix3x3

Matrix3x3 Matrix3x3::rotation(const Vector3& axis, float angleRadians) {
  float angle = -angleRadians;
  return Matrix3x3(
    (axis.x * axis.x) * (1 - cos(angle)) + cos(angle)         , axis.x * axis.y * (1 - cos(angle)) + axis.z * sin(angle), (axis.x * axis.z) * (1 - cos(angle)) - axis.y * sin(angle),
    (axis.x * axis.y) * (1 - cos(angle)) - axis.z * sin(angle), axis.y * axis.y * (1 - cos(angle)) + cos(angle)         , (axis.y * axis.z) * (1 - cos(angle)) + axis.x * sin(angle),
    (axis.x * axis.z) * (1 - cos(angle)) + axis.y * sin(angle), axis.y * axis.z * (1 - cos(angle)) - axis.x * sin(angle), (axis.z * axis.z) * (1 - cos(angle)) + cos(angle));
}

开发者ID:gwowen，项目名称:indigo，代码行数:7，代码来源:Matrix3x3.cpp

示例3: Vector3

Matrix3x3 Quaternion::rotationMatrix3x3() const
{
    Vector3 col1 = Vector3(1.0f - 2.0f * (y * y + z * z), 2.0f * (x * y + w * z), 2.0f * (x * z - w * y));
    Vector3 col2 = Vector3(2.0f * (x * y -  w * z), 1.0f - 2.0f * (x * x + z * z), 2.0f * (y * z + w * x));
    Vector3 col3 = Vector3(2.0f * (x * z + w * y), 2.0f * (y * z - w * x), 1.0f - 2.0f * (x * x + y * y));
    return Matrix3x3(col1, col2, col3);
}

开发者ID:A-K，项目名称:Huurre3D，代码行数:7，代码来源:Quaternion.cpp

示例4: Matrix3x3

Matrix3x3 Matrix3x3::CompMax(const Matrix3x3& m1,
                             const Matrix3x3& m2)
{
	return Matrix3x3(Vector3::CompMax(m1[0], m2[0]),
	                 Vector3::CompMax(m1[1], m2[1]),
	                 Vector3::CompMax(m1[2], m2[2]));
}

开发者ID:dohoang1102，项目名称:fractalTerrain，代码行数:7，代码来源:Matrix3x3.cpp

示例5: Matrix3x3

// Return the transpose matrix
inline Matrix3x3 Matrix3x3::getTranspose() const {

    // Return the transpose matrix
    return Matrix3x3(mRows[0][0], mRows[1][0], mRows[2][0],
                     mRows[0][1], mRows[1][1], mRows[2][1],
                     mRows[0][2], mRows[1][2], mRows[2][2]);
}

开发者ID:jagoly，项目名称:reactphysics3d，代码行数:8，代码来源:Matrix3x3.hpp

示例6: get_unistate_mat3

Matrix3x3 get_unistate_mat3(const char *name)
{
	int sidx = get_unistate_index(name);
	if(sidx == -1) {
		return Matrix3x3();
	}
	return get_unistate_mat3(sidx);
}

开发者ID:Gordath，项目名称:mars2030，代码行数:8，代码来源:unistate.cpp

示例7: Matrix3x3

Matrix3x3 Matrix3x3::operator+( const Matrix3x3& rhs ) const
{
	return Matrix3x3(
		_00+rhs._00, _01+rhs._01, _02+rhs._02,
		_10+rhs._10, _11+rhs._11, _12+rhs._12,
		_20+rhs._20, _21+rhs._21, _22+rhs._22 
	);
}

开发者ID:ggomdyu，项目名称:TGON_ModelJoy，代码行数:8，代码来源:Matrix3x3.cpp

示例8: matScale

Matrix3x3
matScale(double x,
         double y)
{
    return Matrix3x3(x,  0., 0.,
                     0., y,  0.,
                     0., 0., 1.);
}

开发者ID:ChristianHeckl，项目名称:Natron，代码行数:8，代码来源:Transform.cpp

示例9: matTranslation

Matrix3x3
matTranslation(double x,
               double y)
{
    return Matrix3x3(1., 0., x,
                     0., 1., y,
                     0., 0., 1.);
}

开发者ID:ChristianHeckl，项目名称:Natron，代码行数:8，代码来源:Transform.cpp

示例10: matRotation

Matrix3x3
matRotation(double rads)
{
    double c = std::cos(rads);
    double s = std::sin(rads);

    return Matrix3x3(c, s, 0, -s, c, 0, 0, 0, 1);
}

开发者ID:ChristianHeckl，项目名称:Natron，代码行数:8，代码来源:Transform.cpp

示例11: matSkewXY

Matrix3x3
matSkewXY(double skewX,
          double skewY,
          bool skewOrderYX)
{
    return Matrix3x3(skewOrderYX ? 1. : (1. + skewX * skewY), skewX, 0.,
                     skewY, skewOrderYX ? (1. + skewX * skewY) : 1, 0.,
                     0., 0., 1.);
}

开发者ID:ChristianHeckl，项目名称:Natron，代码行数:9，代码来源:Transform.cpp

示例12: set_view_matrix

void TargetCamera::set_camera(long time)
{
	set_view_matrix(get_matrix());
	set_unistate("st_view_matrix3",Matrix3x3(get_matrix()));

    //DEBUG
    Matrix4x4 view = get_matrix();
    glMatrixMode(GL_MODELVIEW);
    glLoadTransposeMatrixf(view[0]);
}

开发者ID:Gordath，项目名称:mars2030，代码行数:10，代码来源:camera.cpp

示例13: Matrix3x3

Matrix3x3 Matrix3x3::Transpose() const
{
    float data[9];
    int cnt = 0;

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            data[cnt++] = data_[j][i];
        }
    }

    return Matrix3x3(data);
}

开发者ID:gviau，项目名称:sketch-3d，代码行数:13，代码来源:Matrix3x3.cpp

示例14: matMul

Matrix3x3
matMul(const Matrix3x3 & m1,
       const Matrix3x3 & m2)
{
    return Matrix3x3(m1.a * m2.a + m1.b * m2.d + m1.c * m2.g,
                     m1.a * m2.b + m1.b * m2.e + m1.c * m2.h,
                     m1.a * m2.c + m1.b * m2.f + m1.c * m2.i,
                     m1.d * m2.a + m1.e * m2.d + m1.f * m2.g,
                     m1.d * m2.b + m1.e * m2.e + m1.f * m2.h,
                     m1.d * m2.c + m1.e * m2.f + m1.f * m2.i,
                     m1.g * m2.a + m1.h * m2.d + m1.i * m2.g,
                     m1.g * m2.b + m1.h * m2.e + m1.i * m2.h,
                     m1.g * m2.c + m1.h * m2.f + m1.i * m2.i);
}

开发者ID:ChristianHeckl，项目名称:Natron，代码行数:14，代码来源:Transform.cpp

示例15: tmp

Matrix3x3 Matrix3x3::getTranspose()
{

    std::vector<float> tmp(9);

    for (int i = 0; i < 3; i++)
    {
        tmp[3 * i] = elements[i];
        tmp[3 * i + 1] = elements[i + 3];
        tmp[3 * i + 2] = elements[i + 6];
    }

    return Matrix3x3(tmp);
}

开发者ID:tritenour01，项目名称:raytracer，代码行数:14，代码来源:matrix.cpp

示例16: r1

a2de::Matrix3x3 Matrix3x3::operator*(const Matrix3x3& rhs) {

    a2de::Vector3D r1(this->GetRowOne());
    a2de::Vector3D r2(this->GetRowTwo());
    a2de::Vector3D r3(this->GetRowThree());

    a2de::Vector3D c1(rhs.GetColumnOne());
    a2de::Vector3D c2(rhs.GetColumnTwo());
    a2de::Vector3D c3(rhs.GetColumnThree());

    return Matrix3x3(a2de::Vector3D::DotProduct(r1, c1), a2de::Vector3D::DotProduct(r1, c2), a2de::Vector3D::DotProduct(r1, c3),
                     a2de::Vector3D::DotProduct(r2, c1), a2de::Vector3D::DotProduct(r2, c2), a2de::Vector3D::DotProduct(r2, c3),
                     a2de::Vector3D::DotProduct(r3, c1), a2de::Vector3D::DotProduct(r3, c2), a2de::Vector3D::DotProduct(r3, c3));
}

开发者ID:cugone，项目名称:Abrams2010，代码行数:14，代码来源:CMatrix3x3.cpp

示例17: configure

	void configure() {
		PhaseFunction::configure();
		m_type = EAnisotropic | ENonSymmetric;

		Properties props("independent");
		m_sampler = static_cast<Sampler*>(PluginManager::getInstance()->createObject(MTS_CLASS(Sampler), props));
		m_sampler->configure();

		if (m_stddev != -1.f) {
			Float sigma1 = m_fiberDistr.sigmaT(0.f) * 2.f;
			Float sigma2 = sigma1;
			Float sigma3 = m_fiberDistr.sigmaT(1.f) * 2.f;
			D = Matrix3x3(Vector(sigma1 * sigma1, 0, 0), Vector(0, sigma2 * sigma2, 0), Vector(0, 0, sigma3 * sigma3));
		}
	}

开发者ID:winmad，项目名称:mitsuba，代码行数:15，代码来源:SGGX.cpp

示例18: triangle_intersection

static bool
triangle_intersection(const Ray *ray,
		const Point3D &p0,
		const Point3D &p1,
		const Point3D &p2,
		double &beta,
		double &gamma)
{
	Vector3D v1 = p1 - p0;
	Vector3D v2 = p2 - p0;
	Vector3D r = ray->get_pos() - p0;

	double d = Matrix3x3(v1,v2,ray->get_dir()).det();
	double d1 = Matrix3x3(r,v2,ray->get_dir()).det();
	beta = d1/d;
	if (beta < 0)
		return false;
	double d2 = Matrix3x3(v1, r, ray->get_dir()).det();
	gamma = d2/d;
	if (gamma < 0 || (beta+gamma) >= 1)
		return false;

	return true;
}

开发者ID:flotsamthespork，项目名称:Ray-Tracer，代码行数:24，代码来源:mesh.cpp

示例19: Matrix3x3

	Matrix3x3 Matrix3x3::Multiply(const Matrix3x3& rhs) const
	{
		float newMatrix[] = 
		{
			(_elements[0] * rhs._elements[0] + _elements[3] * rhs._elements[1] + _elements[6] * rhs._elements[2]),
			(_elements[1] * rhs._elements[0] + _elements[4] * rhs._elements[1] + _elements[7] * rhs._elements[2]),
			(_elements[2] * rhs._elements[0] + _elements[5] * rhs._elements[1] + _elements[8] * rhs._elements[2]),
			(_elements[0] * rhs._elements[3] + _elements[3] * rhs._elements[4] + _elements[6] * rhs._elements[5]),
			(_elements[1] * rhs._elements[3] + _elements[4] * rhs._elements[4] + _elements[7] * rhs._elements[5]),
			(_elements[2] * rhs._elements[3] + _elements[5] * rhs._elements[4] + _elements[8] * rhs._elements[5]),
			(_elements[0] * rhs._elements[6] + _elements[3] * rhs._elements[7] + _elements[6] * rhs._elements[8]),
			(_elements[1] * rhs._elements[6] + _elements[4] * rhs._elements[7] + _elements[7] * rhs._elements[8]),
			(_elements[2] * rhs._elements[6] + _elements[5] * rhs._elements[7] + _elements[8] * rhs._elements[8])
		};
		return Matrix3x3(newMatrix);
	}

开发者ID:WilliamRussell，项目名称:Graphics-Core，代码行数:16，代码来源:Matrix3x3.cpp

示例20: assert

Matrix3x3 Matrix3x3::LookAtRotation(const Vector3& eyePos,
                                    const Vector3& targetPos,
                                    const Vector3& unitUpVector)
{
#ifndef NDEBUG
	assert(eyePos != targetPos && unitUpVector != Vector3::ZERO);
#endif
	// using OpenGL2.1 SDK (gluLookAt)
	Vector3 f((targetPos - eyePos).Normalize());
	Vector3 s(Vector3::CrossProduct(f, unitUpVector));
	Vector3 u(Vector3::CrossProduct(s, f));

	return Matrix3x3(s[0], u[0], -f[0],
	                 s[1], u[1], -f[1],
	                 s[2], u[2], -f[2] );
}

开发者ID:dohoang1102，项目名称:fractalTerrain，代码行数:16，代码来源:Matrix3x3.cpp

注：本文中的Matrix3x3函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。