: unexpected white box
convert -size 1x1 xc:blue ^
-filter point -virtual-pixel tile -define distort:viewport=250x150+0+0 -distort SRT 0 +repage ^
( rose: -rotate 10 -geometry +50+50 ) -composite ^
out_1.png
![Image](https://googledrive.com/host/0Bxw3ymi4doXqbXgwTlNvZU5nTlk/out_1.png)
: shows size of white box to be 250x150
convert -size 1x1 xc:blue ^
-filter point -virtual-pixel tile -define distort:viewport=250x150+0+0 -distort SRT 0 +repage ^
+duplicate -append +duplicate +append ^
( rose: -rotate 10 -geometry +50+50 ) -composite ^
out_2.png
![Image](https://googledrive.com/host/0Bxw3ymi4doXqbXgwTlNvZU5nTlk/out_2.png)
: works when rose is not rotated
convert -size 250x150 xc:blue ^
-filter point -virtual-pixel tile -define distort:viewport=250x150+0+0 -distort SRT 0 +repage ^
( rose: -geometry +50+50 ) -composite ^
out_3.png
![Image](https://googledrive.com/host/0Bxw3ymi4doXqbXgwTlNvZU5nTlk/out_3.png)
: works when background is not tiled
convert -size 250x150 xc:blue ^
( rose: -rotate 10 -geometry +50+50 ) -composite ^
out_4.png
![Image](https://googledrive.com/host/0Bxw3ymi4doXqbXgwTlNvZU5nTlk/out_4.png)
ImageMagick 6.8.8-1 Q16 x64 on Windows 7
EDIT: Subject