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ResInsight/ApplicationLibCode/ModelVisualization/Intersections/RivEnclosingPolygonGenerator.h

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C++

/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2024- Equinor ASA
//
// ResInsight is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
#pragma once
#include "cvfBase.h"
#include "cvfEdgeKey.h"
#include <set>
#include <vector>
/*
* Class for generating an enclosing polygon from a set of vertices.
*
* The class add triangle vertex indices and construct constructing the enclosing polygon from the indices.
* The vertices must be provided in counter clock-wise order.
*
* The vertex welding, and mapping of vertex indices to vertex 3D points, must be handled externally.
*/
class RivEnclosingPolygonGenerator
{
public:
RivEnclosingPolygonGenerator();
std::vector<cvf::uint> getPolygonVertexIndices() const;
bool isValidPolygon() const;
void addTriangleVertexIndices( cvf::uint idxVx0, cvf::uint idxVx1, cvf::uint idxVx2 );
void constructEnclosingPolygon();
private:
static cvf::EdgeKey findNextEdge( cvf::uint vertextIndex, const std::set<cvf::EdgeKey>& boundaryEdges );
private:
std::vector<cvf::int64> m_allEdgeKeys; // Create edge defined by vertex indices when adding triangle. Using cvf::EdgeKey::toKeyVal()
std::vector<cvf::uint> m_polygonVertexIndices; // List polygon vertex indices counter clock-wise
};