thanks ~suv . I don't touch the page dimension. Now works.

post scriptum
the objects must be a path

THANK'S vwanweb. Most issues with erratically behaving tiled clones are caused by Bug #168651 in Inkscape: “ "Tiled Clones" inside transformed groups broken ”: Changing page format or size (height) or orientation adds a transformation to all top level layers (which are basically groups)). ...

add a white square behind the circle to prevent the large dots from rendering there. -Rob A> That's not the problem. 1)Create columns and rows abnormal. 2)creates dots scattered randomly outside the figure 3)Not shrinks and spreads as it should do. Not anything I should do, and also does strange th...

Following this guide
http://tavmjong.free.fr/INKSCAPE/MANUAL ... -Dots.html
and this
http://tavmjong.free.fr/INKSCAPE/MANUAL ... Trace.html
the result is:


Why??!!