Vectors are used everywhere in FreeCAD.
Example:
v=FreeCAD.Vector() v=FreeCAD.Vector(1,0,0) v=FreeCAD.Base.Vector() v2 = FreeCAD.Vector(3,2,-5) v3 = v.add(v2) print v3.Length
LengthReturns: returns the length of the vector.
add ( Vector )Description: adds another vector to this one.
Returns: vector
cross ( Vector )Description: the crossproduct between this vector and another.
Returns: vector
distanceToLine ( Vector1,Vector2 )Description: the distance between the vector and a line through Vector1 in direction Vector2.
Returns: float
distanceToLineSegment ( Vector1,Vector2 )Description: a vector to the closest point on a line segment from Vector1 to Vector2.
Returns: vector
distanceToPlane ( Vector1,Vector2 )Description: the distance between the vector and a plane defined by a point and a normal.
Returns: float
dot ( Vector )Description: the dot product between 2 vectors.
Returns: float
getAngle ( Vector )Description: the angle in radians between this vector and another.
Returns: float
multiply ( Float )Description: multiplies (uniform scale) a vector by the given factor.
Returns: nothing
normalize ( )Description: normalizes a vector (sets its length to 1.0).
Returns: nothing
projectToLine ( Vector1,Vector2 )Description: projects the vector on a line through Vector1 in direction Vector2.
Returns: nothing
projectToPlane ( Vector1,Vector2 )Description: projects the vector on a plane defined by a point (Vector1) and a normal (Vector2).
Returns: nothing
scale ( Float,Float,Float )Description: Same as multiply but lets specify different values for x, y and z directions. (non-uniform scale)
Returns: nothing
sub ( Vector )Description: subtracts another vector from this one.
Returns: vector
xReturns: the x coordinate of a vector.
yReturns: the y coordinate of a vector.
zReturns: the z coordinate of a vector.