Name

PEXTransformPoints2DH

Synopsis

void PEXTransformPoints2DH(PEXMatrix3x3 transform, int count, PEXCoord ∗points, PEXCoord ∗points_return)

Arguments

transformThe transformation matrix to apply to the points

countThe number of points to transform

pointsA pointer to an array of 2D homogeneous points to transform

points_return
A pointer to an array in which to store the transformed points

Returns

None

Description

This function applies the specified homogeneous transformation matrix to the list of 2D homogeneous points (P = x, y, w). The transformation is applied:

P’ = TxP

Where P is the point, treated as a column vector, and T is the transformation matrix.  The function returns P’ = (x’, y’, w’). 

If the return array is the same as the input array, the function will overwrite the input values with the transformed values. 

Errors

None

See Also

PEXTransformPoints, PEXTransformPoints2D, PEXTransformPoints4D