Hi Wangjian, please don't post the same question twice. You probably didn't receive an answer, because the question was too vague.
It would have been clearer if you said that setMinimumScale and setMaximumScale are part of AutoTransform. > When I run the program You are probably talking about the example program osgautotransform. Through use of the source (see Tip 2 (http://forum.openscenegraph.org/viewtopic.php?t=2283)) I learned the following: When the transform is far from the viewpoint it's scale is limited by the maximum scale. So it disappears because the transform is not allowed to scale to a larger value than 2. If it is close to the viewpoint it's scale is limited by the minimumscale. In that case it will not be fixed in screenspace anymore an appear to grow due to perspective projection. kind regards, Roland Smeenk ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=10771#10771 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
