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84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_GEO_FORMATS_BNA_H
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#define SEISCOMP_GEO_FORMATS_BNA_H
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#include <seiscomp/geo/featureset.h>
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namespace Seiscomp {
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namespace Geo {
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/**
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* @brief Reads one BNA file. A BNA file may contain multiple segments
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* consisting of multiple points which define a non closed polyline.
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*
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* A new segment is introduced by the following line:
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* '"arbitrary segment name","rank <#rank>",<#points>'
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* e.g.
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* '"test segment","rank 1",991'
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*
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* A point or vertex is defined by the following line:
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* '<latitude>,<longitude>'
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* e.g.
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* '31.646944,25.151389'
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*
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* In addition the BNA file format supports complex areas such as main land and
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* islands. The coordinate pairs representing the islands are separated from
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* each other by repeating the initial coordinate of the main area. The
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* following sample file illustrates a complex area:
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*
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* "Test Area","rank 1",17
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* 2,2 --begin main area
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* 2,1
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* 1,1
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* 1,2
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* 2,2 --end of main area
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* 4,4 --begin island #1
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* 4,3
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* 3,3
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* 3,4
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* 4,4 --end island #1
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* 2,2 --end main area
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* 7,7 --begin island #2
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* 7,5
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* 6,4
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* 5,6
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* 7,7 --end of island #2
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* 2,2 --end of main area
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*
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* @param featureSet The target feature that will hold the read features
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* @param filename The path to the GeoJSON file
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* @param category An optional category attached to all read features
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* @return The number of features read
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*/
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size_t readBNA(GeoFeatureSet &featureSet, const std::string &path,
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const Category *category = nullptr);
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}
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}
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#endif
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