On 06/28/2012 04:01 PM, Gianluca Amato wrote:

Hi there! I am trying to write a method in Java, which takes a PPL object (let's say a Polyhedron, or an Octagonal_Shape), a sequence of strings as variables names, and generates a string representation of the object similar to the one we obtain with the toString() method, but with the given variable names instead of A, B, etc...

My idea was to get a Constraint_System from the object, iterate over Constraints, and access the coefficients of each constraint. However, the Java API is much simpler then the C++ API, and there is no way, for example, to iterate over constraints.

For the moment, I am generating a string representation with toString, and apply there the necessary transformations.

Do you have any idea how can I circumvent in other ways the limitations of the API? Any plan for a better Java API?

Thanks in advance, --gianluca _______________________________________________ PPL-devel mailing list PPL-devel@cs.unipr.it http://www.cs.unipr.it/mailman/listinfo/ppl-devel

Hi Gianluca.

All "systems" in the Java language interface are vectors:

public class Constraint_System extends java.util.Vector<Constraint>

hence you should be able to call inherited methods such as isEmpty(), size(), elementAt(int), elements(), ... (Note: I haven't actually tested it; feel free to ping us back in case something doesn't work as expected.)

Thank you for the valuable feedback: we realized just now that the current documentation is basically hiding this information.

Ciao, Enea.