p.scale(abstraction.getMagFactor()); drawingCanvas.setPlaneArea(p, index);
if (p != null) { p.scale(abstraction.getMagFactor()); drawingCanvas.setPlaneArea(p, index); }
    public void copyStackAcrossT(int from, int to)    {        int index = presentation.getToolBar().getSelectedIndex();        abstraction.copyStackAcrossT(index, from, to);        int t = getCurrentT();        if (t >= from || t <= to) {            PlaneArea p = abstraction.getPlaneArea(getCurrentZ(), t, index);            p.scale(abstraction.getMagFactor());            drawingCanvas.setPlaneArea(p, index);        }    }