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// -*- C++ -*-

// Copyright 2006 Deutsches Forschungszentrum fuer Kuenstliche Intelligenz 
// or its licensors, as applicable.
// Copyright 1995-2005 Thomas M. Breuel
// 
// You may not use this file except under the terms of the accompanying license.
// 
// Licensed under the Apache License, Version 2.0 (the "License"); you
// may not use this file except in compliance with the License. You may
// obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// 
// Project: iulib -- image understanding library
// File: imgtrace.h
// Purpose: interface to corresponding .cc file
// Responsible: tmb
// Reviewer: 
// Primary Repository: 
// Web Sites: www.iupr.org, www.dfki.de
#ifndef h_imgtrace__
#define h_imgtrace__

namespace iulib {

    struct IChainTracer {
        virtual void set_image(colib::bytearray &image) = 0;
        virtual void clear() = 0;
        virtual bool get_chain(colib::floatarray &points, bool close=false,
                int sample=1) = 0;
        virtual bool get_poly(colib::floatarray &points, float maxdist=1.0,
                bool close=false) = 0;
        virtual ~IChainTracer();
    };
    IChainTracer *chaintracer(colib::bytearray &image);

}

#endif