GmVectorUtils Namespace Reference

Groups utilitary routines for working with vectors. More...

Functions
void	print (const GmVector &v, const GmLogCategory &logger, GmLogLevel level, int fieldWidth, char format, int precision)
	Prints the vector using the specified logger, level and precision fields. Values are separated by spaces.
QString	toString (const GmVector &v, int fieldWidth, char format, int precision, bool noBraces)
	Serializes the vector to a string using the specified precision fields. Coordinates are surrounded by [] (unless noBraces is true) and values separated by ', '.
void	fillFromLuaTable (GmVector &v, LuaTable &t)
	Resizes and fills the vector v to receive the data stored in a lua table.
bool	fillFromLuaTable (GmVector &v, LuaTable &t, int n)
	Resizes and fills the vector v to receive the data stored in a lua table. More...
double	sqrDistance (const GmVector &a, const GmVector &b)
	Returns the squared distance between vectors a and b.
double	distance (const GmVector &a, const GmVector &b)
	Returns the distance between vectors a and b.
double	sqrNorm (const GmVector &v)
	Returns the squared norm of vector v.
double	equal (const GmVector &a, const GmVector &b, double relTol=GM_DOUBLECMP_RELTOL, double absTol=GM_DOUBLECMP_ABSTOL)
	Check to see if two vectors are equal comparing values using GmDoubleCmp::equal.
double	isZero (const GmVector &a, double absTol)
	Check to see if a vector is zero using GmDoubleCmp::isZero over each component.
void	setVectorMemory (GmVector &v, double *data, int nlin)
	Updates the memory area used internally by a vector. DANGEROUS. Should be used only by the bold ones who KNOWS what they are doing. More...
void	resetVectorMemory (GmVector &v)
	Updates a vector that was prepared with setVectorMemory() to a common empty column vector. If the vector is already a common vector, resets it AND sets its memory pointer to NULL to become compatible with the checks by setVectorMemory()
bool	hasSharedMemory (GmVector &v)
	Is this vector operating over a shared memory (set by setVectorMemory())?
void	setVectorSize (GmVector &v, int nlin)
	Updates the logical vector size WITHOUT changin the used memory area. DANGEROUS. Should be used only by the bold ones who KNOWS what they are doing. More...

Detailed Description

Groups utilitary routines for working with vectors.

Function Documentation

fillFromLuaTable()

GMC_API_EXPORT bool GmVectorUtils::fillFromLuaTable	(	GmVector &	v,
		LuaTable &	t,
		int	n
	)

Resizes and fills the vector v to receive the data stored in a lua table.

If n is different from -1 and the table has a size different from n, returns false, without filling v

setVectorMemory()

void GmVectorUtils::setVectorMemory ( GmVector &  v, double *  data, int  nlin  )

inline

Updates the memory area used internally by a vector. DANGEROUS. Should be used only by the bold ones who KNOWS what they are doing.

Makes the vector use the supplied memory and sets the vector size. To be minimally safe, accepts only an empty vector, without allocated memory, or a vector pointing to another external memory area.

setVectorSize()

void GmVectorUtils::setVectorSize ( GmVector &  v, int  nlin  )

inline

Updates the logical vector size WITHOUT changin the used memory area. DANGEROUS. Should be used only by the bold ones who KNOWS what they are doing.

To be minimally safe, accepts only a vector pointing to another external memory area.