Transformations

To transform the entire group, apply a transformation to the top-most group in the hierarchy. To transform only a part of the entire group, apply a transformation to the appropriate nested group. You can, of course, always transform any graphic before you adopt it into its group.

During the top-down and depth-first traversal that happens when the entire group is drawn, the TGraphicGroup transformation functions recursively call the transformation functions of the adopted groups and graphics. The transformation matrix of the parent is postconcatenated with the matrix of the child.


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