Linear2D

[Lawrence D'Oliveiro]

I've decided to give Github a go, with a simple project containing some
routines for performing 2D linear transformations
<http://github.com/ldo/linear2d/tree>.

This takes a functional rather than procedural approach. For example, a
function to construct a matrix that maps a source rectangle to a
destination rectangle is

def MapRect(SrcRect, DstRect) :
    return \
      (
            Matrix.translation(- SrcRect.topleft())
        *
            Matrix.scaling(DstRect.dimensions() / SrcRect.dimensions())
        *
            Matrix.translation(DstRect.topleft())
      )
#end MapRect