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  • Committer: Anders Logg
  • Date: 2008-03-17 14:59:22 UTC
  • mto: This revision was merged to the branch mainline in revision 2414.
  • Revision ID: logg@simula.no-20080317145922-83cfli6k6ev22qu7
Implement evaluation of Functions at arbitrary points.
Now, f.eval(x) works for any x inside the mesh. Broken
in Python since FFC does not generate evaluate_basis
by default.

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dolfin/function/ConstantFunction.h
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// Licensed under the GNU LGPL Version 2.1.
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//
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// First added:  2006-02-09
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// Last changed: 2008-03-11
 
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// Last changed: 2008-03-17
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#ifndef __CONSTANT_FUNCTION_H
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#define __CONSTANT_FUNCTION_H
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    uint dim(uint i) const;
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    /// Interpolate function to vertices of mesh
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    void interpolate(real* values);
 
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    void interpolate(real* values) const;
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    /// Interpolate function to finite element space on cell
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    void interpolate(real* coefficients,
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                     const ufc::cell& cell,
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                     const ufc::finite_element& finite_element);
 
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                     const ufc::finite_element& finite_element) const;
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    /// Evaluate function at given point
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    void eval(real* values, const real* x) const;
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    real value;
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    // Size of value (number of entries in tensor value)
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    uint size;
 
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    mutable uint size;
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  };
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