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Jan Schacher, 02/20/2016 01:49 pm


Geo-transform Extension

describe a standard set of geometry matrix transforms, as found in computer graphics and 3D modelling:
http://en.wikipedia.org/wiki/Affine_transformation

transform a (set of) point(s) by use of a geometry matrix.
common operations:

  • translate
  • rotate
  • scale
  • shear
  • reflect

these operations are non commutable, order is important.

transmit either the factors controlling the individual transforms:

/translate 0.0 0.0 0.0
/rotate 0.0 0.0 90.0
/scale 1.0 1.0 1.0
/shear 0.0 0.0 0.0 0.0 0.0 0.0
/reflect 0 0 0

or the entire matrix, in specific matrix format (tbd.)


Example Implementations:

Nils Peters: jmod.scene3D for Jamoma, github repository
Jasch: 3Dmatrix External for MaxMSP, jasch objects site