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namespace oopse { |
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const double epsilon = 0.000001; |
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template<typename T> |
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inline bool equal(T e1, T e2) { |
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return e1 == e2; |
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} |
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|
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template<> |
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inline bool equal(float e1, float e2) { |
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return fabs(e1 - e2) < epsilon; |
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} |
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|
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template<> |
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inline bool equal(double e1, double e2) { |
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return fabs(e1 - e2) < epsilon; |
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} |
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/** |
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* @class Vector Vector.hpp "math/Vector.hpp" |
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* @brief Fix length vector class |
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/** Constructs and initializes a Vector from an array */ |
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inline Vector( double* v) { |
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for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = v[i]; |
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for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = v[i]; |
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} |
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/** |
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return data_[i]; |
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} |
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/** |
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* Tests if this vetor is equal to other vector |
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* @return true if equal, otherwise return false |
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* @param v vector to be compared |
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*/ |
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inline bool operator ==(const Vector<Real, Dim>& v) { |
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|
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for (unsigned int i = 0; i < Dim; i ++) { |
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if (!equal(data_[i], v[i])) { |
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return false; |
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} |
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} |
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|
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return true; |
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} |
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|
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/** |
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* Tests if this vetor is not equal to other vector |
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* @return true if equal, otherwise return false |
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* @param v vector to be compared |
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*/ |
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inline bool operator !=(const Vector<Real, Dim>& v) { |
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return !(*this == v); |
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} |
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|
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/** Negates the value of this vector in place. */ |
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inline void negate() { |
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data_[0] = -data_[0]; |
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* @param v1 the other vector |
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*/ |
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inline void add( const Vector<Real, Dim>& v1 ) { |
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for (unsigned int i = 0; i < Dim; i++) |
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data_[i] += v1.data_[i]; |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] += v1.data_[i]; |
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} |
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/** |
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* @param v2 the second vector |
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*/ |
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inline void add( const Vector<Real, Dim>& v1, const Vector<Real, Dim>& v2 ) { |
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for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = v1.data_[i] + v2.data_[i]; |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = v1.data_[i] + v2.data_[i]; |
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} |
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/** |
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* @param s the scalar value |
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*/ |
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inline void mul( double s ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] *= s; |
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} |
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|
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* @param v1 the vector |
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*/ |
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inline void mul( double s, const Vector<Real, Dim>& v1 ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = s * v1.data_[i]; |
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} |
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* @param s the scalar value |
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*/ |
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inline void div( double s) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] /= s; |
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} |
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|
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* @param s the scalar value |
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*/ |
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inline void div( const Vector<Real, Dim>& v1, double s ) { |
250 |
< |
for (unsigned int i = 0; i < Dim; i++) |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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data_[i] = v1.data_[i] / s; |
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} |
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|
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* Returns the squared length of this vector. |
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* @return the squared length of this vector |
289 |
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*/ |
290 |
< |
inline double lengthSquared() { |
290 |
> |
inline double lengthSquare() { |
291 |
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return dot(*this, *this); |
292 |
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} |
293 |
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|
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len = length(); |
299 |
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*this /= len; |
300 |
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} |
301 |
+ |
|
302 |
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/** |
303 |
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* Tests if this vector is normalized |
304 |
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* @return true if this vector is normalized, otherwise return false |
305 |
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*/ |
306 |
+ |
inline bool isNormalized() const |
307 |
+ |
{ |
308 |
+ |
return lengthSquare() == 1.0; |
309 |
+ |
} |
310 |
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|
311 |
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protected: |
312 |
|
double data_[3]; |
414 |
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*/ |
415 |
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template<typename Real, unsigned int Dim> |
416 |
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inline Real dot( const Vector<Real, Dim>& v1, const Vector<Real, Dim>& v2 ) { |
417 |
< |
Real tmp; |
418 |
< |
tmp = 0; |
417 |
> |
Real tmp; |
418 |
> |
tmp = 0; |
419 |
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|
420 |
< |
for (unsigned int i = 0; i < Dim; i++) |
421 |
< |
tmp += v1[i] + v2[i]; |
422 |
< |
|
423 |
< |
return tmp; |
420 |
> |
for (unsigned int i = 0; i < Dim; i++) |
421 |
> |
tmp += v1[i] + v2[i]; |
422 |
> |
|
423 |
> |
return tmp; |
424 |
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} |
425 |
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|
426 |
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/** |
451 |
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* Write to an output stream |
452 |
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*/ |
453 |
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template<typename Real, unsigned int Dim> |
454 |
< |
std::ostream &operator<< ( std::ostream& o, const Vector<Real, Dim>& v1 ) { |
455 |
< |
|
454 |
> |
std::ostream &operator<< ( std::ostream& o, const Vector<Real, Dim>& v) { |
455 |
> |
|
456 |
> |
o << "[" << v[0] << ", " << v[1] << ", " << v[2] << "]" << endl; |
457 |
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return o; |
458 |
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} |
459 |
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