Hello

DOLFIN is compiled with CGAL and I can run the distance_queries demo with
no problems but when I do this:

    for (VertexIterator vertex(mesh); !vertex.end(); ++vertex) {
        xy = new Array<double>(dim, geometry.x(vertex->index()));

        x =  (*xy)[0];
        y =  (*xy)[1];
        z =  (*xy)[2];

        closest_point = mesh.closest_point(Point( x, y, z));
    }

I get this error:

terminate called after throwing an instance of 'std::runtime_error'
  what():

***
-------------------------------------------------------------------------
*** DOLFIN encountered an error. If you are not able to resolve this issue
*** using the information listed below, you can ask for help at
***
***     https://answers.launchpad.net/dolfin
***
*** Remember to include the error message listed below and, if possible,
*** include a *minimal* running example to reproduce the error.
***
***
-------------------------------------------------------------------------
*** Error:   Unable to perform call to DOLFIN function.
*** Reason:  The function compute has not been implemented (in
/home/rishi/dolfin-1.2.0/dolfin/intersection/IntersectionOperatorImplementation.h
line 262).
*** Where:   This error was encountered inside log.h.
*** Process: 0
***
-------------------------------------------------------------------------

This seems strange to since I can run the compile and run the
distance)queries demo.

Thanks in advance,

Gennadiy
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