Functions
function util	CreateConstUserMatrix2d (m00, m01, m10, m11)

function util	CreateConstUserMatrix3d (m00, m01, m02, m10, m11, m12, m20, m21, m22)

function util	CreateConstUserVector2d (v0, v1)

function util	CreateConstUserVector3d (v0, v1, v2)

function util	FactorizeInPowersOfTwo (n)

function util	IsNaturalNumber (n)

function util	IsPowerOfTwo (n)

Function Documentation

◆ CreateConstUserMatrix2d()

function util CreateConstUserMatrix2d	(	m00	,
		m01	,
		m10	,
		m11
	)

creates a Const User Matrix 2d

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :37-44

function util.CreateConstUserMatrix2d(m00, m01, m10, m11)
  local mat = ConstUserMatrix2d()
  mat:set_entry(0, 0, m00)
  mat:set_entry(0, 1, m01)
  mat:set_entry(1, 0, m10)
  mat:set_entry(1, 1, m11)  
  return mat
end

◆ CreateConstUserMatrix3d()

function util CreateConstUserMatrix3d	(	m00	,
		m01	,
		m02	,
		m10	,
		m11	,
		m12	,
		m20	,
		m21	,
		m22
	)

creates a Const User Matrix 3d

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :47-59

function util.CreateConstUserMatrix3d(m00, m01, m02, m10, m11, m12, m20, m21, m22)
  local mat = ConstUserMatrix3d()
  mat:set_entry(0, 0, m00)
  mat:set_entry(0, 1, m01)
  mat:set_entry(0, 2, m02)
  mat:set_entry(1, 0, m10)
  mat:set_entry(1, 1, m11)
  mat:set_entry(1, 2, m12)
  mat:set_entry(2, 0, m20)
  mat:set_entry(2, 1, m21)
  mat:set_entry(2, 2, m22)  
  return mat
end

◆ CreateConstUserVector2d()

function util CreateConstUserVector2d	(	v0	,
		v1
	)

creates a Const User Vector 2d

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :62-67

function util.CreateConstUserVector2d(v0, v1)
  local vec = ConstUserVector2d()
  vec:set_entry(0, v0)
  vec:set_entry(1, v1)
  return vec
end

◆ CreateConstUserVector3d()

function util CreateConstUserVector3d	(	v0	,
		v1	,
		v2
	)

creates a Const User Vector 3d

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :70-76

function util.CreateConstUserVector3d(v0, v1, v2)
  local vec = ConstUserVector3d()
  vec:set_entry(0, v0)
  vec:set_entry(1, v1)
  vec:set_entry(2, v2)
  return vec
end

◆ FactorizeInPowersOfTwo()

function util FactorizeInPowersOfTwo ( n )

function to factorise number which has to be a power of 2 in two factors which differ at most by a factor of 2 and returns both (first the smaller one, then the larger one).

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :105-120

function util.FactorizeInPowersOfTwo(n)
  if not util.IsPowerOfTwo(n) then
    print("Number to factorise must be a power of 2. Aborting.")
    exit()
  end
 
  local number firstFactor = n
  local number secFactor = 1
 
  while (firstFactor > 2*secFactor) do
    firstFactor = firstFactor/2
    secFactor = secFactor*2
  end
 
  return secFactor, firstFactor
end

◆ IsNaturalNumber()

function util IsNaturalNumber ( n )

function returns true if the number is a natural number

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :94-100

function util.IsNaturalNumber(n)
  if n-math.floor(n) == 0 then
    return true
  else
    return false
  end
end

◆ IsPowerOfTwo()

function util IsPowerOfTwo ( n )

function returns true if the number is a power of two

location: /home/runner/work/docs/docs/ug4/ugcore/scripts/util / math_util.lua :83-91

function util.IsPowerOfTwo(n)
  local number compare = 1
 
  while (compare < n) do
    compare = compare*2
  end
 
  return compare==n
end

Functions