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Vec2.h
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// Copyright Contributors to the OpenVDB Project
// SPDX-License-Identifier: MPL-2.0
#ifndef OPENVDB_MATH_VEC2_HAS_BEEN_INCLUDED
#define OPENVDB_MATH_VEC2_HAS_BEEN_INCLUDED
#include <openvdb/Exceptions.h>
#include "Math.h"
#include "Tuple.h"
#include <algorithm>
#include <cmath>
#include <type_traits>
namespace openvdb {
OPENVDB_USE_VERSION_NAMESPACE
namespace OPENVDB_VERSION_NAME {
namespace math {
template<typename T> class Mat2;
template<typename T>
class Vec2: public Tuple<2, T>
{
public:
using value_type = T;
using ValueType = T;
/// Trivial constructor, the vector is NOT initialized
/// @note destructor, copy constructor, assignment operator and
/// move constructor are left to be defined by the compiler (default)
Vec2() = default;
/// @brief Construct a vector all of whose components have the given value.
explicit Vec2(T val) { this->mm[0] = this->mm[1] = val; }
/// Constructor with two arguments, e.g. Vec2f v(1,2,3);
Vec2(T x, T y)
{
this->mm[0] = x;
this->mm[1] = y;
}
/// Constructor with array argument, e.g. float a[2]; Vec2f v(a);
template <typename Source>
Vec2(Source *a)
{
this->mm[0] = static_cast<T>(a[0]);
this->mm[1] = static_cast<T>(a[1]);
} // trivial
/// Conversion constructor
template<typename Source>
explicit Vec2(const Tuple<2, Source> &t)
{
this->mm[0] = static_cast<T>(t[0]);
this->mm[1] = static_cast<T>(t[1]);
}
/// @brief Construct a vector all of whose components have the given value,
/// which may be of an arithmetic type different from this vector's value type.
/// @details Type conversion warnings are suppressed.
template<typename Other>
explicit Vec2(Other val,
typename std::enable_if<std::is_arithmetic<Other>::value, Conversion>::type = Conversion{})
{
this->mm[0] = this->mm[1] = static_cast<T>(val);
}
/// Reference to the component, e.g. v.x() = 4.5f;
T& x() {return this->mm[0];}
T& y() {return this->mm[1];}
/// Get the component, e.g. float f = v.y();
T x() const {return this->mm[0];}
T y() const {return this->mm[1];}
/// Alternative indexed reference to the elements
T& operator()(int i) {return this->mm[i];}
/// Alternative indexed constant reference to the elements,
T operator()(int i) const {return this->mm[i];}
T* asPointer() {return this->mm;}
const T* asPointer() const {return this->mm;}
/// "this" vector gets initialized to [x, y, z],
/// calling v.init(); has same effect as calling v = Vec2::zero();
const Vec2<T>& init(T x=0, T y=0)
{
this->mm[0] = x; this->mm[1] = y;
return *this;
}
/// Set "this" vector to zero
const Vec2<T>& setZero()
{
this->mm[0] = 0; this->mm[1] = 0;
return *this;
}
/// Assignment operator
template<typename Source>
const Vec2<T>& operator=(const Vec2<Source> &v)
{
// note: don't static_cast because that suppresses warnings
this->mm[0] = v[0];
this->mm[1] = v[1];
return *this;
}
/// Equality operator, does exact floating point comparisons
bool operator==(const Vec2<T> &v) const
{
return (isExactlyEqual(this->mm[0], v.mm[0]) && isExactlyEqual(this->mm[1], v.mm[1]));
}
/// Inequality operator, does exact floating point comparisons
bool operator!=(const Vec2<T> &v) const { return !(*this==v); }
/// Test if "this" vector is equivalent to vector v with tolerance of eps
bool eq(const Vec2<T> &v, T eps = static_cast<T>(1.0e-7)) const
{
return isApproxEqual(this->mm[0], v.mm[0], eps) &&
isApproxEqual(this->mm[1], v.mm[1], eps);
} // trivial
/// Negation operator, for e.g. v1 = -v2;
Vec2<T> operator-() const {return Vec2<T>(-this->mm[0], -this->mm[1]);}
/// this = v1 + v2
/// "this", v1 and v2 need not be distinct objects, e.g. v.add(v1,v);
template <typename T0, typename T1>
const Vec2<T>& add(const Vec2<T0> &v1, const Vec2<T1> &v2)
{
this->mm[0] = v1[0] + v2[0];
this->mm[1] = v1[1] + v2[1];
return *this;
}
/// this = v1 - v2
/// "this", v1 and v2 need not be distinct objects, e.g. v.sub(v1,v);
template <typename T0, typename T1>
const Vec2<T>& sub(const Vec2<T0> &v1, const Vec2<T1> &v2)
{
this->mm[0] = v1[0] - v2[0];
this->mm[1] = v1[1] - v2[1];
return *this;
}
/// this = scalar*v, v need not be a distinct object from "this",
/// e.g. v.scale(1.5,v1);
template <typename T0, typename T1>
const Vec2<T>& scale(T0 scalar, const Vec2<T1> &v)
{
this->mm[0] = scalar * v[0];
this->mm[1] = scalar * v[1];
return *this;
}
template <typename T0, typename T1>
const Vec2<T> &div(T0 scalar, const Vec2<T1> &v)
{
this->mm[0] = v[0] / scalar;
this->mm[1] = v[1] / scalar;
return *this;
}
/// Dot product
T dot(const Vec2<T> &v) const { return this->mm[0]*v[0] + this->mm[1]*v[1]; } // trivial
/// Length of the vector
T length() const
{
return static_cast<T>(sqrt(double(this->mm[0]*this->mm[0] + this->mm[1]*this->mm[1])));
}
/// Squared length of the vector, much faster than length() as it
/// does not involve square root
T lengthSqr() const { return (this->mm[0]*this->mm[0] + this->mm[1]*this->mm[1]); }
/// Return a reference to itsef after the exponent has been
/// applied to all the vector components.
inline const Vec2<T>& exp()
{
this->mm[0] = std::exp(this->mm[0]);
this->mm[1] = std::exp(this->mm[1]);
return *this;
}
/// Return a reference to itself after log has been
/// applied to all the vector components.
inline const Vec2<T>& log()
{
this->mm[0] = std::log(this->mm[0]);
this->mm[1] = std::log(this->mm[1]);
return *this;
}
/// Return the sum of all the vector components.
inline T sum() const
{
return this->mm[0] + this->mm[1];
}
/// Return the product of all the vector components.
inline T product() const
{
return this->mm[0] * this->mm[1];
}
/// this = normalized this
bool normalize(T eps = static_cast<T>(1.0e-8))
{
T d = length();
if (isApproxEqual(d, T(0), eps)) {
return false;
}
*this *= (T(1) / d);
return true;
}
/// return normalized this, throws if null vector
Vec2<T> unit(T eps=0) const
{
T d;
return unit(eps, d);
}
/// return normalized this and length, throws if null vector
Vec2<T> unit(T eps, T& len) const
{
len = length();
if (isApproxEqual(len, T(0), eps)) {
OPENVDB_THROW(ArithmeticError, "Normalizing null 2-vector");
}
return *this / len;
}
/// return normalized this, or (1, 0) if this is null vector
Vec2<T> unitSafe() const
{
T l2 = lengthSqr();
return l2 ? *this/static_cast<T>(sqrt(l2)) : Vec2<T>(1,0);
}
/// Multiply each element of this vector by @a scalar.
template <typename S>
const Vec2<T> &operator*=(S scalar)
{
this->mm[0] *= scalar;
this->mm[1] *= scalar;
return *this;
}
/// Multiply each element of this vector by the corresponding element of the given vector.
template <typename S>
const Vec2<T> &operator*=(const Vec2<S> &v1)
{
this->mm[0] *= v1[0];
this->mm[1] *= v1[1];
return *this;
}
/// Divide each element of this vector by @a scalar.
template <typename S>
const Vec2<T> &operator/=(S scalar)
{
this->mm[0] /= scalar;
this->mm[1] /= scalar;
return *this;
}
/// Divide each element of this vector by the corresponding element of the given vector.
template <typename S>
const Vec2<T> &operator/=(const Vec2<S> &v1)
{
this->mm[0] /= v1[0];
this->mm[1] /= v1[1];
return *this;
}
/// Add @a scalar to each element of this vector.
template <typename S>
const Vec2<T> &operator+=(S scalar)
{
this->mm[0] += scalar;
this->mm[1] += scalar;
return *this;
}
/// Add each element of the given vector to the corresponding element of this vector.
template <typename S>
const Vec2<T> &operator+=(const Vec2<S> &v1)
{
this->mm[0] += v1[0];
this->mm[1] += v1[1];
return *this;
}
/// Subtract @a scalar from each element of this vector.
template <typename S>
const Vec2<T> &operator-=(S scalar)
{
this->mm[0] -= scalar;
this->mm[1] -= scalar;
return *this;
}
/// Subtract each element of the given vector from the corresponding element of this vector.
template <typename S>
const Vec2<T> &operator-=(const Vec2<S> &v1)
{
this->mm[0] -= v1[0];
this->mm[1] -= v1[1];
return *this;
}
// Number of cols, rows, elements
static unsigned numRows() { return 1; }
static unsigned numColumns() { return 2; }
static unsigned numElements() { return 2; }
/// Returns the scalar component of v in the direction of onto, onto need
/// not be unit. e.g float c = Vec2f::component(v1,v2);
T component(const Vec2<T> &onto, T eps = static_cast<T>(1.0e-8)) const
{
T l = onto.length();
if (isApproxEqual(l, T(0), eps)) return 0;
return dot(onto)*(T(1)/l);
}
/// Return the projection of v onto the vector, onto need not be unit
/// e.g. Vec2f v = Vec2f::projection(v,n);
Vec2<T> projection(const Vec2<T> &onto, T eps = static_cast<T>(1.0e-8)) const
{
T l = onto.lengthSqr();
if (isApproxEqual(l, T(0), eps)) return Vec2::zero();
return onto*(dot(onto)*(T(1)/l));
}
/// Return an arbitrary unit vector perpendicular to v
/// Vector v must be a unit vector
/// e.g. v.normalize(); Vec2f n = Vec2f::getArbPerpendicular(v);
Vec2<T> getArbPerpendicular() const { return Vec2<T>(-this->mm[1], this->mm[0]); }
/// Predefined constants, e.g. Vec2f v = Vec2f::xNegAxis();
static Vec2<T> zero() { return Vec2<T>(0, 0); }
static Vec2<T> ones() { return Vec2<T>(1, 1); }
};
/// Multiply each element of the given vector by @a scalar and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator*(S scalar, const Vec2<T> &v)
{
return v * scalar;
}
/// Multiply each element of the given vector by @a scalar and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator*(const Vec2<T> &v, S scalar)
{
Vec2<typename promote<S, T>::type> result(v);
result *= scalar;
return result;
}
/// Multiply corresponding elements of @a v0 and @a v1 and return the result.
template <typename T0, typename T1>
inline Vec2<typename promote<T0, T1>::type> operator*(const Vec2<T0> &v0, const Vec2<T1> &v1)
{
Vec2<typename promote<T0, T1>::type> result(v0[0] * v1[0], v0[1] * v1[1]);
return result;
}
/// Divide @a scalar by each element of the given vector and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator/(S scalar, const Vec2<T> &v)
{
return Vec2<typename promote<S, T>::type>(scalar/v[0], scalar/v[1]);
}
/// Divide each element of the given vector by @a scalar and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator/(const Vec2<T> &v, S scalar)
{
Vec2<typename promote<S, T>::type> result(v);
result /= scalar;
return result;
}
/// Divide corresponding elements of @a v0 and @a v1 and return the result.
template <typename T0, typename T1>
inline Vec2<typename promote<T0, T1>::type> operator/(const Vec2<T0> &v0, const Vec2<T1> &v1)
{
Vec2<typename promote<T0, T1>::type> result(v0[0] / v1[0], v0[1] / v1[1]);
return result;
}
/// Add corresponding elements of @a v0 and @a v1 and return the result.
template <typename T0, typename T1>
inline Vec2<typename promote<T0, T1>::type> operator+(const Vec2<T0> &v0, const Vec2<T1> &v1)
{
Vec2<typename promote<T0, T1>::type> result(v0);
result += v1;
return result;
}
/// Add @a scalar to each element of the given vector and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator+(const Vec2<T> &v, S scalar)
{
Vec2<typename promote<S, T>::type> result(v);
result += scalar;
return result;
}
/// Subtract corresponding elements of @a v0 and @a v1 and return the result.
template <typename T0, typename T1>
inline Vec2<typename promote<T0, T1>::type> operator-(const Vec2<T0> &v0, const Vec2<T1> &v1)
{
Vec2<typename promote<T0, T1>::type> result(v0);
result -= v1;
return result;
}
/// Subtract @a scalar from each element of the given vector and return the result.
template <typename S, typename T>
inline Vec2<typename promote<S, T>::type> operator-(const Vec2<T> &v, S scalar)
{
Vec2<typename promote<S, T>::type> result(v);
result -= scalar;
return result;
}
/// Angle between two vectors, the result is between [0, pi],
/// e.g. float a = Vec2f::angle(v1,v2);
template <typename T>
inline T angle(const Vec2<T> &v1, const Vec2<T> &v2)
{
T c = v1.dot(v2);
return acos(c);
}
template <typename T>
inline bool
isApproxEqual(const Vec2<T>& a, const Vec2<T>& b)
{
return a.eq(b);
}
template <typename T>
inline bool
isApproxEqual(const Vec2<T>& a, const Vec2<T>& b, const Vec2<T>& eps)
{
return isApproxEqual(a.x(), b.x(), eps.x()) &&
isApproxEqual(a.y(), b.y(), eps.y());
}
template<typename T>
inline Vec2<T>
Abs(const Vec2<T>& v)
{
return Vec2<T>(Abs(v[0]), Abs(v[1]));
}
/// Orthonormalize vectors v1 and v2 and store back the resulting basis
/// e.g. Vec2f::orthonormalize(v1,v2);
template <typename T>
inline void orthonormalize(Vec2<T> &v1, Vec2<T> &v2)
{
// If the input vectors are v0, v1, and v2, then the Gram-Schmidt
// orthonormalization produces vectors u0, u1, and u2 as follows,
//
// u0 = v0/|v0|
// u1 = (v1-(u0*v1)u0)/|v1-(u0*v1)u0|
//
// where |A| indicates length of vector A and A*B indicates dot
// product of vectors A and B.
// compute u0
v1.normalize();
// compute u1
T d0 = v1.dot(v2);
v2 -= v1*d0;
v2.normalize();
}
/// \remark We are switching to a more explicit name because the semantics
/// are different from std::min/max. In that case, the function returns a
/// reference to one of the objects based on a comparator. Here, we must
/// fabricate a new object which might not match either of the inputs.
/// Return component-wise minimum of the two vectors.
template <typename T>
inline Vec2<T> minComponent(const Vec2<T> &v1, const Vec2<T> &v2)
{
return Vec2<T>(
std::min(v1.x(), v2.x()),
std::min(v1.y(), v2.y()));
}
/// Return component-wise maximum of the two vectors.
template <typename T>
inline Vec2<T> maxComponent(const Vec2<T> &v1, const Vec2<T> &v2)
{
return Vec2<T>(
std::max(v1.x(), v2.x()),
std::max(v1.y(), v2.y()));
}
/// @brief Return a vector with the exponent applied to each of
/// the components of the input vector.
template <typename T>
inline Vec2<T> Exp(Vec2<T> v) { return v.exp(); }
/// @brief Return a vector with log applied to each of
/// the components of the input vector.
template <typename T>
inline Vec2<T> Log(Vec2<T> v) { return v.log(); }
using Vec2i = Vec2<int32_t>;
using Vec2ui = Vec2<uint32_t>;
using Vec2s = Vec2<float>;
using Vec2d = Vec2<double>;
OPENVDB_IS_POD(Vec2i)
OPENVDB_IS_POD(Vec2ui)
OPENVDB_IS_POD(Vec2s)
OPENVDB_IS_POD(Vec2d)
} // namespace math
} // namespace OPENVDB_VERSION_NAME
} // namespace openvdb
#endif // OPENVDB_MATH_VEC2_HAS_BEEN_INCLUDED
Math.h
General-purpose arithmetic and comparison routines, most of which accept arbitrary value types (or at...
OPENVDB_IS_POD
#define OPENVDB_IS_POD(Type)
Definition Math.h:56
Tuple.h
openvdb::v10_0::ArithmeticError
Definition Exceptions.h:56
openvdb::v10_0::math::Mat2
Definition Vec2.h:20
openvdb::v10_0::math::Vec2< Real >::mm
Real mm[SIZE]
Definition Tuple.h:164
openvdb::v10_0::math::Tuple< 2, T >::Tuple
Tuple()=default
openvdb::v10_0::math::Vec2
Definition Vec2.h:24
openvdb::v10_0::math::Vec2::unit
Vec2< T > unit(T eps, T &len) const
return normalized this and length, throws if null vector
Definition Vec2.h:236
openvdb::v10_0::math::Vec2::Vec2
Vec2(T x, T y)
Constructor with two arguments, e.g. Vec2f v(1,2,3);.
Definition Vec2.h:38
openvdb::v10_0::math::Vec2< Real >::x
Real & x()
Definition Vec2.h:71
openvdb::v10_0::math::Vec2::Vec2
Vec2(Other val, typename std::enable_if< std::is_arithmetic< Other >::value, Conversion >::type=Conversion{})
Construct a vector all of whose components have the given value, which may be of an arithmetic type d...
Definition Vec2.h:64
openvdb::v10_0::math::Vec2::normalize
bool normalize(T eps=static_cast< T >(1.0e-8))
this = normalized this
Definition Vec2.h:218
openvdb::v10_0::math::Vec2::operator=
const Vec2< T > & operator=(const Vec2< Source > &v)
Assignment operator.
Definition Vec2.h:104
openvdb::v10_0::math::Vec2::length
T length() const
Length of the vector.
Definition Vec2.h:178
openvdb::v10_0::math::Vec2::exp
const Vec2< T > & exp()
Definition Vec2.h:189
openvdb::v10_0::math::Vec2::sum
T sum() const
Return the sum of all the vector components.
Definition Vec2.h:206
openvdb::v10_0::math::Vec2::component
T component(const Vec2< T > &onto, T eps=static_cast< T >(1.0e-8)) const
Definition Vec2.h:331
openvdb::v10_0::math::Vec2::numColumns
static unsigned numColumns()
Definition Vec2.h:326
openvdb::v10_0::math::Vec2::sub
const Vec2< T > & sub(const Vec2< T0 > &v1, const Vec2< T1 > &v2)
Definition Vec2.h:146
openvdb::v10_0::math::Vec2::operator==
bool operator==(const Vec2< T > &v) const
Equality operator, does exact floating point comparisons.
Definition Vec2.h:114
openvdb::v10_0::math::Vec2::asPointer
T * asPointer()
Definition Vec2.h:84
openvdb::v10_0::math::Vec2::log
const Vec2< T > & log()
Definition Vec2.h:198
openvdb::v10_0::math::Vec2::numRows
static unsigned numRows()
Definition Vec2.h:325
openvdb::v10_0::math::Vec2::Vec2
Vec2(Source *a)
Constructor with array argument, e.g. float a[2]; Vec2f v(a);.
Definition Vec2.h:46
openvdb::v10_0::math::Vec2::operator/=
const Vec2< T > & operator/=(const Vec2< S > &v1)
Divide each element of this vector by the corresponding element of the given vector.
Definition Vec2.h:281
openvdb::v10_0::math::Vec2::operator+=
const Vec2< T > & operator+=(const Vec2< S > &v1)
Add each element of the given vector to the corresponding element of this vector.
Definition Vec2.h:299
openvdb::v10_0::math::Vec2::operator*=
const Vec2< T > & operator*=(S scalar)
Multiply each element of this vector by scalar.
Definition Vec2.h:254
openvdb::v10_0::math::Vec2::operator()
T & operator()(int i)
Alternative indexed reference to the elements.
Definition Vec2.h:79
openvdb::v10_0::math::Vec2< Real >::y
Real & y()
Definition Vec2.h:72
openvdb::v10_0::math::Vec2::operator-=
const Vec2< T > & operator-=(const Vec2< S > &v1)
Subtract each element of the given vector from the corresponding element of this vector.
Definition Vec2.h:317
openvdb::v10_0::math::Vec2::Vec2
Vec2(T val)
Construct a vector all of whose components have the given value.
Definition Vec2.h:35
openvdb::v10_0::math::Vec2::operator()
T operator()(int i) const
Alternative indexed constant reference to the elements,.
Definition Vec2.h:82
openvdb::v10_0::math::Vec2::init
const Vec2< T > & init(T x=0, T y=0)
Definition Vec2.h:89
openvdb::v10_0::math::Vec2::product
T product() const
Return the product of all the vector components.
Definition Vec2.h:212
openvdb::v10_0::math::Vec2::add
const Vec2< T > & add(const Vec2< T0 > &v1, const Vec2< T1 > &v2)
Definition Vec2.h:135
openvdb::v10_0::math::Vec2::scale
const Vec2< T > & scale(T0 scalar, const Vec2< T1 > &v)
Definition Vec2.h:157
openvdb::v10_0::math::Vec2::dot
T dot(const Vec2< T > &v) const
Dot product.
Definition Vec2.h:175
openvdb::v10_0::math::Vec2::setZero
const Vec2< T > & setZero()
Set "this" vector to zero.
Definition Vec2.h:96
openvdb::v10_0::math::Vec2::asPointer
const T * asPointer() const
Definition Vec2.h:85
openvdb::v10_0::math::Vec2::lengthSqr
T lengthSqr() const
Definition Vec2.h:185
openvdb::v10_0::math::Vec2::eq
bool eq(const Vec2< T > &v, T eps=static_cast< T >(1.0e-7)) const
Test if "this" vector is equivalent to vector v with tolerance of eps.
Definition Vec2.h:123
openvdb::v10_0::math::Vec2::projection
Vec2< T > projection(const Vec2< T > &onto, T eps=static_cast< T >(1.0e-8)) const
Definition Vec2.h:341
openvdb::v10_0::math::Vec2::ones
static Vec2< T > ones()
Definition Vec2.h:356
openvdb::v10_0::math::Vec2::x
T x() const
Get the component, e.g. float f = v.y();.
Definition Vec2.h:75
openvdb::v10_0::math::Vec2::Vec2
Vec2(const Tuple< 2, Source > &t)
Conversion constructor.
Definition Vec2.h:54
openvdb::v10_0::math::Vec2::operator/=
const Vec2< T > & operator/=(S scalar)
Divide each element of this vector by scalar.
Definition Vec2.h:272
openvdb::v10_0::math::Vec2::y
T y() const
Definition Vec2.h:76
openvdb::v10_0::math::Vec2::operator+=
const Vec2< T > & operator+=(S scalar)
Add scalar to each element of this vector.
Definition Vec2.h:290
openvdb::v10_0::math::Vec2::operator*=
const Vec2< T > & operator*=(const Vec2< S > &v1)
Multiply each element of this vector by the corresponding element of the given vector.
Definition Vec2.h:263
openvdb::v10_0::math::Vec2::numElements
static unsigned numElements()
Definition Vec2.h:327
openvdb::v10_0::math::Vec2::Vec2
Vec2()=default
openvdb::v10_0::math::Vec2::div
const Vec2< T > & div(T0 scalar, const Vec2< T1 > &v)
Definition Vec2.h:166
openvdb::v10_0::math::Vec2::operator!=
bool operator!=(const Vec2< T > &v) const
Inequality operator, does exact floating point comparisons.
Definition Vec2.h:120
openvdb::v10_0::math::Vec2::zero
static Vec2< T > zero()
Predefined constants, e.g. Vec2f v = Vec2f::xNegAxis();.
Definition Vec2.h:355
openvdb::v10_0::math::Vec2::unit
Vec2< T > unit(T eps=0) const
return normalized this, throws if null vector
Definition Vec2.h:229
openvdb::v10_0::math::Vec2::operator-
Vec2< T > operator-() const
Negation operator, for e.g. v1 = -v2;.
Definition Vec2.h:130
openvdb::v10_0::math::Vec2::unitSafe
Vec2< T > unitSafe() const
return normalized this, or (1, 0) if this is null vector
Definition Vec2.h:246
openvdb::v10_0::math::Vec2< Real >::ValueType
Real ValueType
Definition Vec2.h:27
openvdb::v10_0::math::Vec2::operator-=
const Vec2< T > & operator-=(S scalar)
Subtract scalar from each element of this vector.
Definition Vec2.h:308
openvdb::v10_0::math::Vec2::getArbPerpendicular
Vec2< T > getArbPerpendicular() const
Definition Vec2.h:352
openvdb::v10_0::math::Vec2< Real >::value_type
Real value_type
Definition Vec2.h:26
openvdb::v10_0::math::Log
Vec2< T > Log(Vec2< T > v)
Return a vector with log applied to each of the components of the input vector.
Definition Vec2.h:528
openvdb::v10_0::math::Vec2i
Vec2< int32_t > Vec2i
Definition Vec2.h:530
openvdb::v10_0::math::orthonormalize
void orthonormalize(Vec2< T > &v1, Vec2< T > &v2)
Definition Vec2.h:476
openvdb::v10_0::math::operator*
Mat3< typename promote< T0, T1 >::type > operator*(const Mat3< T0 > &m0, const Mat3< T1 > &m1)
Multiply m0 by m1 and return the resulting matrix.
Definition Mat3.h:597
openvdb::v10_0::math::Vec2d
Vec2< double > Vec2d
Definition Vec2.h:533
openvdb::v10_0::math::isApproxEqual
bool isApproxEqual(const Type &a, const Type &b, const Type &tolerance)
Return true if a is equal to b to within the given tolerance.
Definition Math.h:406
openvdb::v10_0::math::Vec2s
Vec2< float > Vec2s
Definition Vec2.h:532
openvdb::v10_0::math::operator-
Vec3< typename promote< T, Coord::ValueType >::type > operator-(const Vec3< T > &v0, const Coord &v1)
Allow a Coord to be subtracted from a Vec3.
Definition Coord.h:551
openvdb::v10_0::math::Vec2ui
Vec2< uint32_t > Vec2ui
Definition Vec2.h:531
openvdb::v10_0::math::operator+
Vec3< typename promote< T, typename Coord::ValueType >::type > operator+(const Vec3< T > &v0, const Coord &v1)
Allow a Coord to be added to or subtracted from a Vec3.
Definition Coord.h:525
openvdb::v10_0::math::Exp
Type Exp(const Type &x)
Return ex.
Definition Math.h:710
openvdb::v10_0::math::Abs
Coord Abs(const Coord &xyz)
Definition Coord.h:515
openvdb::v10_0::math::angle
T angle(const Vec2< T > &v1, const Vec2< T > &v2)
Definition Vec2.h:446
openvdb::v10_0::math::operator/
Vec2< typename promote< S, T >::type > operator/(S scalar, const Vec2< T > &v)
Divide scalar by each element of the given vector and return the result.
Definition Vec2.h:385
openvdb::v10_0::math::isExactlyEqual
bool isExactlyEqual(const T0 &a, const T1 &b)
Return true if a is exactly equal to b.
Definition Math.h:443
openvdb::v10_0::math::minComponent
Vec2< T > minComponent(const Vec2< T > &v1, const Vec2< T > &v2)
Return component-wise minimum of the two vectors.
Definition Vec2.h:504
openvdb::v10_0::math::maxComponent
Vec2< T > maxComponent(const Vec2< T > &v1, const Vec2< T > &v2)
Return component-wise maximum of the two vectors.
Definition Vec2.h:513
openvdb
Definition Exceptions.h:13
Exceptions.h
OPENVDB_THROW
#define OPENVDB_THROW(exception, message)
Definition Exceptions.h:74
openvdb::v10_0::math::Conversion
Dummy class for tag dispatch of conversion constructors.
Definition Tuple.h:23
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition version.h.in:121
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition version.h.in:212