@c %start of fragment @node Transformations @chapter Transformations Manipulating the current transformation matrix @section Overview The current transformation matrix, @dfn{ctm}, is a two-dimensional affine transformation that maps all coordinates and other drawing instruments from the @dfn{user space} into the surface's canonical coordinate system, also known as the @dfn{device space}. @section Usage @include defuns-cairo-transforms.xml.texi @c %end of fragment