coordA = (coordB * matrixTransformB->getMatrix()) * matrixTransformA ->getMatrix().inverse();
Glenn Waldron / @glennwaldron On Thu, Jul 16, 2015 at 11:23 AM, Christian Buchner < christian.buch...@gmail.com> wrote: > Hi, > > I was having some problems with a coordinate transformation. > > root > matrixTransformA matrixTransformB > subgraphA subgraph B > > I have two subgraphs in my scene, each of which is a child of a unique > MatrixTransform. > > I now have to draw a line between an element from subgraph A to connect to > an element of subgraph B. I've decided to add this line into subgraphA as a > drawable - so both start and end point of this line have to be specified in > my "A" coordinate system. > > How would I transform a coordinate from subgraph B coordinate system into > the equivalent > coordinate valid within subgraph A, ideally using utility functions > provided by the OSG framework ? I would like to do that with minimal amount > of code. > > Excuse me for asking a basic linear algebra question, but I seem to be > stuck for good on this problem. > > Christian > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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