liblas.hpp

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/******************************************************************************
 * $Id$
 *
 * Project:  libLAS - http://liblas.org - A BSD library for LAS format data.
 * Purpose:  LAS include file
 * Author:   Mateusz Loskot, mateusz@loskot.net
 *
 ******************************************************************************
 * Copyright (c) 2008, Mateusz Loskot
 * Copyright (c) 2008, Phil Vachon
 * Copyright (c) 2008, Howard Butler
 *
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following 
 * conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright 
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright 
 *       notice, this list of conditions and the following disclaimer in 
 *       the documentation and/or other materials provided 
 *       with the distribution.
 *     * Neither the name of the Martin Isenburg or Iowa Department 
 *       of Natural Resources nor the names of its contributors may be 
 *       used to endorse or promote products derived from this software 
 *       without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
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 ****************************************************************************/


#ifndef LIBLAS_HPP_INCLUDED
#define LIBLAS_HPP_INCLUDED

// liblas
#include <liblas/detail/fwd.hpp>
// booost
#include <boost/array.hpp>
#include <boost/concept_check.hpp>
#include <boost/cstdint.hpp>
#include <boost/shared_ptr.hpp>
// std
#include <fstream>
#include <string>

typedef boost::shared_ptr< liblas::Header > HeaderPtr;
typedef boost::shared_ptr< liblas::Point > PointPtr;
typedef boost::shared_ptr< liblas::TransformI > TransformPtr;

namespace liblas
{

inline bool Open(std::ifstream& ifs, std::string const& filename) // throw()
{
    ifs.open(filename.c_str(), std::ios::in | std::ios::binary);
    return ifs.is_open();
}

inline bool Create(std::ofstream& ofs, std::string const& filename) // throw()
{
    ofs.open(filename.c_str(), std::ios::out | std::ios::binary);
    return ofs.is_open();
}

inline bool IsGDALEnabled()
{
#ifdef HAVE_GDAL
    return true;
#else
    return false;
#endif
}

inline bool IsLibGeoTIFFEnabled()
{
#ifdef HAVE_LIBGEOTIFF
    return true;
#else
    return false;
#endif
}

inline bool IsLibSpatialIndexEnabled()
{
#ifdef HAVE_SPATIALINDEX
    return true;
#else
    return false;
#endif
}

enum FormatVersion
{
    eVersionMajorMin = 1, 
    eVersionMajorMax = 1, 
    eVersionMinorMin = 0, 
    eVersionMinorMax = 3 
};

enum PointFormatName
{
    ePointFormat0 = 0, 
    ePointFormat1 = 1, 
    ePointFormat2 = 2, 
    ePointFormat3 = 3,  
    ePointFormat4 = 4,  
    ePointFormat5 = 5,  
    ePointFormatUnknown = -99 
};

enum PointSize
{
    ePointSize0 = 20, 
    ePointSize1 = 28, 
    ePointSize2 = 26, 
    ePointSize3 = 34  

};


class ReaderI
{
public:

    virtual HeaderPtr ReadHeader() = 0;
    virtual PointPtr ReadNextPoint(HeaderPtr header) = 0;
    virtual Point const& ReadPointAt(std::size_t n, HeaderPtr header) = 0;
    virtual void Seek(std::size_t n, HeaderPtr header) = 0;
    
    virtual void Reset(HeaderPtr header) = 0;
    
    virtual std::istream& GetStream() const = 0;
    
    virtual ~ReaderI() {};    
};

class WriterI
{
public:

    virtual Header const& WriteHeader(const Header& header) = 0;
    virtual void UpdateHeader(const Header& header) = 0;
    virtual void WritePoint(const Point& point, const Header& header) = 0;

    virtual std::ostream& GetStream() const = 0;

    virtual ~WriterI() {};    

};

class FilterI
{
public:
    
    enum FilterType
    {
        eExclusion = 0, 
        eInclusion = 1 
    };
    
    virtual bool filter(const Point& point) = 0;
    
    void SetType(FilterType t) {m_type = t;}
    FilterType GetType() const {return m_type; }

    virtual ~FilterI() {};

    FilterI(FilterType t) : m_type(t) {}
    
private:

    FilterI(FilterI const& other);
    FilterI& operator=(FilterI const& rhs);

    FilterType m_type;

    
};

class TransformI
{
public:
    
    virtual bool transform(Point& point) = 0;
    virtual ~TransformI() {};

};

} // namespace liblas

#endif // LIBLAS_HPP_INCLUDED