''' ################################################ Task:- to apply a translation array to an array of 3D vertex coordinates to produce the resulting location of each vertices.
Translation array and vertex coordinates taken from a Truespace COB file. The text in the COB file looks like this:- Transform -2.11786 -0.817596 0.946387 0.864939 0.405189 1.25484 2.11894 0.434915 -1.16679 1.9198 -0.981965 1.13894 0 0 0 1 World Vertices 8 -0.200000 -0.029486 -0.236313 0.200000 0.029486 -0.163687 -0.200000 0.370514 -0.282911 -0.200000 0.370514 0.117089 -0.200000 -0.029486 0.163687 0.200000 0.029486 0.236313 0.200000 0.429486 -0.210286 0.200000 0.429486 0.189714 ############################################### ''' # script start import Numeric transArray = Numeric.array(( (-2.11786, -0.817596, 0.946387, 0.864939), (0.405189, 1.25484, 2.11894, 0.434915), (-1.16679, 1.9198, -0.981965, 1.1389), (0, 0, 0, 1) )) # a "1" added to the end of each set of vertix coordinates vertArray = Numeric.array(( (-0.200000, -0.029486, -0.236313, 1), (0.200000, 0.029486, -0.163687, 1), (-0.200000, 0.370514, -0.282911, 1), (-0.200000, 0.370514, 0.117089, 1), (-0.200000, -0.029486, 0.163687, 1), (0.200000, 0.029486, 0.236313, 1), (0.200000, 0.429486, -0.210286, 1), (0.200000, 0.429486, 0.189714, 1) )) print transArray print "" print vertArray print "" transArray = Numeric.reshape(transArray,(4,4)) vertArray = Numeric.reshape(vertArray,(4,8)) print Numeric.matrixmultiply(transArray,vertArray) # script end ''' ################################################################## Result:- [[ 0.5708016 0.10309048 0.70481144 -1.12413 0.1022124 0.03400637 0.63866924 -1.12413 ] [-0.6688108 0.57729922 -0.19537307 4.213884 0.3408408 0.72615216 0.66384632 4.213884 ] [ 0.273571 1.26381257 -0.66763452 0.909945 -0.585931 1.13709619 0.39979 0.909945 ] [ 0.2 0.429486 -0.210286 1. 0.2 0.429486 0.189714 1. ]] Am I going in the right direction? What do I do with the result? :) Thanks, PhilC ''' -- http://mail.python.org/mailman/listinfo/python-list
