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Subject: Re: [cgmo-webcgm] rotateAnimation test
Forrest, Your analysis looks correct to me on first glance, but I don't have the tools handy now to check the details. (I'll do so later.) It is definitely true that the rotation center point to the rotate() method must be NVDC. Meanwhile -- Don & Ulrich -- please comment on Forrest's analysis. (Each implementation has "Pass" on this one.) Thanks, -Lofton. At 03:40 PM 10/2/2009 -0500, Forrest Carpenter wrote: >All, > > > >In doing some testing with the java script version of the >tranformXCF-js.htm we found we were not taking into consideration that the >lower left of the transformXCF.cgm was not 0,0 but -5000,0. After we >changed our code to take this into consideration we no longer passed the >rotateAnimation test. We believe the point of rotation in the test in not >correct. The point in the htm file is (280.7,205.0) which is the vdc >coordinate of the point in mm. Because the lower left of the CGM is >(99,159) vdcs in mm. We believe the offset should be subtracted from the >point to make it NVDC s. The rotation point should be (181.7,46.0). This >may require changes in the getTransform values, but we are not sure of >this yet. > > > >Regards, > >Forrest
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