I generate some image through babel code block for a beamer presentation
#+BEGIN_SRC plantuml :file qt_unit2_observer.eps :noexport
@startuml
Observer --> Observable : register
Observable -> Observer : notify
@enduml
#+END_SRC
#+RESULTS:
[[file:qt_unit2_observer.eps]]
#+ATTR_LATEX: :height 30mm
#+RESULTS:
#+ATTR_LATEX: :height 30mm
[[file:qt_unit2_observer.eps]]
#+RESULTS:
[[file:qt_unit2_observer.eps]]
#+ATTR_LATEX: :height 30mm
[[file:qt_unit2_observer.eps]]
It works for me if I put #+ATTR_LATEX: :height 30mm
right before the #+RESULTS:
line.