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/******************************************************************************
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* Project: libLAS - http://liblas.org - A BSD library for LAS format data.
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* Purpose: LAS reader class
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* Author: Mateusz Loskot, mateusz@loskot.net
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******************************************************************************
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* Copyright (c) 2008, Mateusz Loskot
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* Copyright (c) 2008, Phil Vachon
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of the Martin Isenburg or Iowa Department
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* of Natural Resources nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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****************************************************************************/
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#ifndef LIBLAS_LASREADER_HPP_INCLUDED
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#define LIBLAS_LASREADER_HPP_INCLUDED
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#include <liblas/header.hpp>
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#include <liblas/point.hpp>
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#include <liblas/variablerecord.hpp>
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#include <liblas/spatialreference.hpp>
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#include <liblas/transform.hpp>
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#include <liblas/filter.hpp>
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#include <liblas/export.hpp>
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#include <boost/cstdint.hpp>
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/// Defines public interface to LAS reader implementation.
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/// Consructor initializes reader with input stream as source of LAS records.
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/// @param ifs - stream used as source of LAS records.
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/// @exception std::runtime_error - on failure state of the input stream.
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Reader(std::istream& ifs);
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Reader(ReaderIPtr reader);
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Reader(Reader const& other);
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Reader& operator=(Reader const& rhs);
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/// @exception nothrow
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/// Provides read-only access to header of LAS file being read.
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/// @exception nothrow
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Header const& GetHeader() const;
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void SetHeader(Header const& );
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/// Provides read-only access to current point record.
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/// @exception nothrow
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Point const& GetPoint() const;
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/// Fetches next point record in file.
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/// @exception may throw std::exception
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/// Fetches n-th point record from file.
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/// @exception may throw std::exception
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bool ReadPointAt(std::size_t n);
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/// Reinitializes state of the reader.
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/// @exception may throw std::exception
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/// Move to the specified point to start
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/// ReadNextPoint operations
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/// @exception may throw std::exception
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bool Seek(std::size_t n);
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/// Provides index-based access to point records.
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/// The operator is implemented in terms of ReadPointAt method
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/// and is not const-qualified because it updates file stream position.
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/// @exception may throw std::exception
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Point const& operator[](std::size_t n);
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/// Sets filters that are used to determine whether or not to
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/// keep a point that was read from the file. Filters have *no*
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/// effect for reading data at specific locations in the file.
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/// They only affect reading ReadNextPoint-style operations
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/// Filters are applied *before* transforms.
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void SetFilters(std::vector<liblas::FilterPtr> const& filters);
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/// Gets the list of filters to be applied to points as they are read
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std::vector<liblas::FilterPtr> GetFilters() const;
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/// Sets transforms to apply to points. Points are transformed in
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/// place *in the order* of the transform list.
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/// Filters are applied *before* transforms.
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void SetTransforms(std::vector<liblas::TransformPtr> const& transforms);
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/// Gets the list of transforms to be applied to points as they are read
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std::vector<liblas::TransformPtr> GetTransforms() const;
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void Init(); // throws on error
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} // namespace liblas
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#endif // ndef LIBLAS_LASREADER_HPP_INCLUDED
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include/liblas/reader.hpp
