In my tex project I use an ./images/xxx/ directory to save stuff generated by matlab2tikz. Sometimes matlab2tikz generates png's. When I try to "\include" the tikz file it fails to import those for an obvious reason - the tikz file contains the paths to png's relative to itself, not to the main tex file.
Is there a standard way to handle such situation (e.g. supply a path prefix to matlab2tikz as an option). Please do not advice postprocessing the tikz file, I'm looking either for built in functionality, or a tex idiom to handle this.